CN221900734U

CN221900734U - Single/three-phase power supply control circuit of generator

Info

Publication number: CN221900734U
Application number: CN202420339627.9U
Authority: CN
Inventors: 龚治俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2024-02-23
Filing date: 2024-02-23
Publication date: 2024-10-25
Anticipated expiration: 2034-02-23

Abstract

The utility model relates to a single/three-phase power supply control circuit of a generator, comprising: the power supply system comprises a first permanent magnet generator, a boost control circuit, a rectification control circuit, a three-phase full-bridge inverter circuit and an output circuit; the first permanent magnet generator is electrically connected with a rectification control circuit through the input of a three-phase power generation winding; the first end of the rectification control circuit is connected with the first end of the boost control circuit; the second end of the rectification control circuit is connected with the second end of the three-phase full-bridge inverter circuit; the second end of the boost control circuit is connected with the first end of the three-phase full-bridge inverter circuit; the first end of the rectification control circuit is also connected with an output neutral line; the three-phase full-bridge inverter circuit forms three-phase alternating current output; the first end of the output circuit is connected with an output neutral line, and the second end of the output circuit is connected with a three-phase alternating current output end of the three-phase full-bridge inverter circuit. The utility model uses a single motor to generate winding input, can switch the three-phase output line in parallel into single-phase full-power output when needed, and has remarkable economic and practical values.

Description

Single/three-phase power supply control circuit of generator

Technical Field

The utility model relates to the technical field of power supply of generators, in particular to a single/three-phase power supply control circuit of a generator.

Background

At present, a small and medium power generator driven by other power such as an internal combustion engine, wind power, water power and the like is generally configured with a synchronous excitation generator or a permanent magnet generator. The synchronous excitation generator has simple structure, but needs relatively fixed rotating speed to maintain relatively stable output power supply frequency, and consumption of excitation current can lead to larger generator volume and lower efficiency; the permanent magnet generator can work in a very wide rotating speed range, and the efficiency is higher due to the adoption of permanent magnet excitation, but the frequency and the voltage of an output power supply can be converted into stable single-phase or three-phase power supply output through AC-DC-AC (inverter controller for short).

The inverter controller of the single-phase output generator below 10KW in the market is mature, and the inverter controller of the three-phase power output has various design modes, and any design mode meets the three-phase output and is switched to single-phase full-power output service when needed. The current common design mode is that three groups of motor three-phase power generation windings are input, corresponding to three groups of independent single-phase power supply outputs, are connected in parallel when single-phase output is needed, and are connected together when three-phase output is needed, the other ends of the three single-phase outputs are used as phase line outputs, and the phases of the three single-phase outputs meet the requirements of the three-phase power supply. It can be understood that this design method is actually three independent inverter controllers, and more power electronic components are required, and the control is complex.

Disclosure of utility model

Therefore, the present utility model aims to provide a single/three-phase power supply control circuit based on a single generator, so as to solve the technical problems of more electronic elements and more complicated control required for satisfying the output of the three-phase power supply.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides a single/three-phase power supply control circuit of a generator, which comprises: the power supply system comprises a first permanent magnet generator, a boost control circuit, a rectification control circuit, a three-phase full-bridge inverter circuit and an output circuit;

the first permanent magnet generator is electrically connected with the rectification control circuit through three-phase power generation winding input;

The first end of the rectification control circuit is connected with the first end of the boost control circuit;

The second end of the rectification control circuit is connected with the second end of the three-phase full-bridge inverter circuit; the second end of the boost control circuit is connected with the first end of the three-phase full-bridge inverter circuit;

The first end of the rectification control circuit is also connected with an output neutral line; the three-phase full-bridge inverter circuit comprises three half-bridges, and each half-bridge controls an alternating current output to form a three-phase alternating current output;

the first end of the output circuit is connected with the output neutral line;

during single-phase output, the second end of the output circuit is simultaneously connected with the three-phase alternating-current output end of the three-phase full-bridge inverter circuit; when three phases are output, the second end of the output circuit is divided into three terminals which are respectively and independently connected with the three-phase alternating current output end.

Optionally, the generator single/three-phase power supply control circuit further comprises an inversion control circuit;

The inversion control circuit is electrically connected with the three-phase full-bridge inversion circuit and is used for sending a power control signal to the three-phase full-bridge inversion circuit, wherein the power control signal comprises a three-phase output switching signal, a single-phase output switching signal and a three-phase PWM chopping signal;

When the switching signal in the power supply control signal is three-phase output, the three-phase full-bridge inverter circuit is used for completing three-phase chopping according to the three-phase PWM chopping signal in the power supply control signal and filtering in the output circuit to obtain three-phase power supply voltage output;

When the switching signal in the power control signal is single-phase output, the three-phase PWM chopping signal is switched into a single-phase PWM synchronous chopping signal, the three half-bridges complete single-phase synchronous chopping and are filtered by the output circuit to obtain three synchronous single-phase power voltage outputs, the three single-phase outputs are connected in parallel to be output as a single-phase second end, and the neutral line of the output circuit is output as a first end of the single-phase power voltage.

Optionally, the generator single/three-phase power supply control circuit further comprises a capacitor C1 and a capacitor C2;

The third end of the boost control circuit is connected with the second end of the rectification control circuit;

The first end of the capacitor C1 is respectively connected with the second end of the boost control circuit and the first end of the three-phase full-bridge inverter circuit; the second end of the capacitor C1 is connected with the first end of the capacitor C2; the second end of the capacitor C2 is respectively connected with the second end of the rectification control circuit and the second end of the three-phase full-bridge inverter circuit;

The first end of rectification control circuit still links has output neutral line, includes:

The second end of the capacitor C1 and the first end of the capacitor C2 are respectively connected with the first end of the rectification control circuit and the output neutral line.

Optionally, the second end of the rectification control circuit is also grounded; or, the second end of the boost control circuit is also grounded.

Optionally, the capacitance C1 and the capacitance C2 have the same capacitance.

Optionally, the output circuit further includes a capacitor C3, a capacitor C4, and a capacitor C5;

The first end of the capacitor C3, the first end of the capacitor C4 and the first end of the capacitor C5 are respectively connected with the output neutral line;

The second end of the capacitor C3, the second end of the capacitor C4 and the second end of the capacitor C5 are respectively connected with the output of each half-bridge filter inductance coil L1, L2 and L3 in the three-phase full-bridge inverter circuit.

Optionally, the boost control circuit includes a first boost circuit; the rectification control circuit comprises a first three-phase controllable rectification circuit.

Optionally, the rectification control circuit comprises a second three-phase controllable rectification circuit; the boost control circuit comprises a second permanent magnet generator and a third three-phase controllable rectifying circuit;

The second permanent magnet generator is electrically connected with the third three-phase controllable rectifying circuit through the input of the three-phase power generation winding;

the first end of the second three-phase controllable rectifying circuit is connected with the first end of the third three-phase controllable rectifying circuit; and the second end of the third three-phase controllable rectifying circuit is connected with the first end of the three-phase full-bridge inverter circuit.

Optionally, the boost control circuit includes a second boost circuit; the rectification control circuit comprises a fourth three-phase uncontrollable rectification circuit and a third boost circuit;

The first permanent magnet generator is electrically connected with the fourth three-phase uncontrollable rectifier circuit through three-phase power generation winding input; the first end of the fourth three-phase uncontrollable rectifying circuit is connected with the third boost circuit; the second end of the fourth three-phase uncontrollable rectifying circuit is grounded; the second end of the third boost circuit is connected with the first end of the second boost circuit;

And the first end of the three-phase full-bridge inverter circuit is respectively connected with the third end of the third boost circuit, the second end of the fourth three-phase uncontrollable rectifier circuit and the third end of the second boost circuit.

Optionally, the three-phase controllable rectifying circuit includes a silicon controlled rectifier SCR1 and a diode D1 connected in series, a silicon controlled rectifier SCR2 and a diode D2 connected in series, a silicon controlled rectifier SCR3 and a diode D3 connected in series; the silicon controlled rectifier SCR1, the diode D1 connected in series, the silicon controlled rectifier SCR2, the diode D2 connected in series, the silicon controlled rectifier SCR3 and the diode D3 connected in series are connected in parallel in three paths and are respectively connected with the input of a three-phase power generation winding;

And/or the number of the groups of groups,

The first boost circuit comprises an inductance coil L4, a diode D4 and a MOS tube S1; the inductance coil L4 is connected in series with the diode D4 and the MOS transistor S1, respectively.

Optionally, the three-phase controllable rectifying circuit includes a silicon controlled rectifier SCR1 and a diode D1 connected in series, a silicon controlled rectifier SCR2 and a diode D2 connected in series, a silicon controlled rectifier SCR3 and a diode D3 connected in series; the silicon controlled rectifier SCR1, the diode D1 connected in series, the silicon controlled rectifier SCR2, the diode D2 connected in series, the silicon controlled rectifier SCR3 and the diode D3 connected in series are connected in parallel in three ways and are respectively connected with the input of the three-phase power generation winding.

And/or the number of the groups of groups,

The second boost circuit and the third boost circuit comprise an inductance coil L4, a diode D4 and a MOS tube S1; the inductance coil L4 is connected in series with the diode D4 and the MOS transistor S1, respectively.

The utility model provides a single/three-phase power supply control circuit of a generator, which is applied to a permanent magnet generator and comprises: the power supply system comprises a first permanent magnet generator, a boost control circuit, a rectification control circuit, a three-phase full-bridge inverter circuit and an output circuit; the first permanent magnet generator is electrically connected with the rectification control circuit through three-phase power generation winding input; the first end of the rectification control circuit is connected with the first end of the boost control circuit; the second end of the rectification control circuit is connected with the second end of the three-phase full-bridge inverter circuit; the second end of the boost control circuit is connected with the first end of the three-phase full-bridge inverter circuit; the first end of the rectification control circuit is also connected with an output neutral line; the three-phase full-bridge inverter circuit comprises three half-bridges, and each half-bridge controls an alternating current output to form a three-phase alternating current output; the first end of the output circuit is connected with the output neutral line; during single-phase output, the second end of the output circuit is simultaneously connected with the three-phase alternating-current output end of the three-phase full-bridge inverter circuit; when three phases are output, the second end of the output circuit is divided into three terminals which are respectively and independently connected with the three-phase alternating current output end. The utility model uses a single motor to generate winding input, outputs three-phase four-wire power supply output with a neutral line, uses fewer electronic elements, reduces heating and component cost, ensures stable output neutral line potential, improves motor efficiency by single motor three-phase winding input, can switch three-phase output lines into single-phase full-power output in parallel when needed, and has remarkable economic value and practical value.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a single/three-phase power control circuit of a generator according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of a single/three-phase power control circuit of a generator according to the present utility model;

FIG. 3 is a schematic diagram of a third embodiment of a single/three-phase power control circuit for a generator according to the present utility model;

FIG. 4 is a schematic diagram of the structure of the boost circuit and the three-phase controllable rectifying circuit in the single/three-phase power control circuit of the generator according to the present utility model;

FIG. 5 is a schematic diagram of a fourth embodiment of a single/three phase power control circuit for a generator according to the present utility model;

Fig. 6 is a schematic structural diagram of a fifth embodiment of a single/three-phase power control circuit of a generator according to the present utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

Example 1:

Fig. 1 is a block diagram of a single/three-phase power supply control circuit of a generator according to an embodiment of the present utility model. Referring to fig. 1, the three-phase power control circuit of the present embodiment includes: the power generation device comprises a first permanent magnet generator 11, a rectification control circuit 12, a boost control circuit 13, a three-phase full-bridge inverter circuit 14 and an output circuit 15.

Wherein, the first permanent magnet generator 11 is electrically connected with the rectification control circuit 12 by three-phase power generation winding input; a first end of the rectification control circuit 12 is connected with a first end of the boost control circuit 13; a second end of the rectification control circuit 12 is connected with a second end of the three-phase full-bridge inverter circuit 14; a second end of the boost control circuit 13 is connected with a first end of the three-phase full-bridge inverter circuit 14; the first end of the rectification control circuit 12 is also connected with an output neutral line; the three-phase full-bridge inverter circuit 14 includes three half-bridges, each half-bridge controlling an ac output to form a three-phase ac output; the first end of the output circuit is connected with an output neutral line; during single-phase output, the second end of the output circuit is simultaneously connected with the three-phase alternating current output end of the three-phase full-bridge inverter circuit; when three phases are output, the second end of the output circuit is divided into three terminals which are respectively and independently connected with the three-phase alternating current output end.

In the embodiment of the present utility model, the rectification control circuit 12 is configured to convert the input of the three-phase power generation winding into the dc output, the output dc voltage is U1, the boost control circuit 13 is configured to boost the output voltage of the rectification control circuit 12, and the output dc voltage is U2. The three-phase full-bridge inverter circuit 15 is configured to convert the dc voltage U2 into a three-phase ac output. In the process of implementing dc voltage inversion by the three-phase full-bridge inverter circuit 14, the three-phase full-bridge inverter circuit 14 has three upper bridge arms and three lower bridge arms, and each of the six bridge arms includes a switching device. At each moment, the on nodes of each switching device are controlled through three-phase PWM chopping signals, three-phase chopping is completed, and three-phase power supply voltage output is obtained through filtering in an output circuit.

Optionally, the output circuit 15 includes a capacitor C3, a capacitor C4, and a capacitor C5; the first end of the capacitor C3, the first end of the capacitor C4 and the first end of the capacitor C5 are respectively connected with an output neutral line to form a three-phase output end N; the second end of the capacitor C3, the second end of the capacitor C4 and the second end of the capacitor C5 are respectively connected with the output of each half-bridge filter inductance coil L1, L2 and L3 in the three-phase full-bridge inverter circuit to form three single-phase output ends. Thereby, the dc voltage U2 is converted into U, V, W three-phase ac output by the three-phase full-bridge inverter circuit 15. U, V, W and a three-phase output end N form single-phase output, and the three-phase output ends U, V, W and N can output a three-phase power supply. When single-phase output is needed, the three-phase PWM chopping signals are switched into single-phase PWM synchronous chopping signals, and the phases of the U, V, W output points are the same and are connected together to form a single-phase output end L, and the single-phase full-power output is formed together with the N end.

Specifically, the three-phase power supply control circuit further includes an inverter control circuit 16, and a capacitor C1 and a capacitor C2. The first end of the capacitor C1 is respectively connected with the second end of the rectification control circuit 12 and the first end of the three-phase full-bridge inverter circuit 14; the second end of the capacitor C1 is connected with the first end of the capacitor C2; the second end of the capacitor C2 is respectively connected with the second end of the boost control circuit 13 and the second end of the three-phase full-bridge inverter circuit 14; the second terminal of the capacitor C1 and the first terminal of the capacitor C2 are connected to the first terminal of the rectification control circuit 12 and the output neutral line, respectively.

In the embodiment of the present utility model, the third end of the boost control circuit 13 is connected to the second end of the rectification control circuit 12; the second end of the rectification control circuit 12 is also grounded, namely the rectification control circuit 12 is a low-voltage end; the boost control circuit 13 is a high voltage terminal. In general, the capacitance of the selection capacitor C1 is equal to the capacitance of the capacitance C2. It will be appreciated that the dc voltage U1 output by the rectifying control circuit 12 is stabilized at a fixed value, for example, u1=375 VDC, and is filtered by the capacitor C1; the output voltage of the boost control circuit 13 is U2, u2=2u1=750vdc, and the capacitor C1 and the capacitor C2 are connected in series to perform filtering. And since u2=2×u1, the voltages on C1, C2 are equal. When the three-phase or single-phase output voltage is a positive half-wave, the load current of the capacitor C2 is larger than that of the capacitor C1, and the boost control circuit 13 can timely supplement current to maintain the voltage of the U2 unchanged; when the three-phase or single-phase output voltage is a negative half-wave, the load current of the capacitor C1 is greater than the load current of the capacitor C2, and the rectification control circuit 12 can timely supplement current to maintain the voltage of U1 unchanged. Because of the existence of the boost control circuit 13, the voltages of U1 and U2 cannot be changed due to the switching of the positive half wave and the negative half wave of the alternating current output, and finally the situations of midpoint voltage drift and inconsistent peak values of the positive half wave and the negative half wave are avoided. Further, in the embodiment of the present utility model, the inverter control circuit 16 is electrically connected to the three-phase full-bridge inverter circuit 14, and is configured to send a power control signal to the three-phase full-bridge inverter circuit 14, where the power control signal includes a three-phase output switching signal, a single-phase output switching signal, and a three-phase PWM chopping signal. When the switching signal in the power supply control signal is three-phase output, the three-phase full-bridge inverter circuit is used for completing three-phase chopping according to the three-phase PWM chopping signal in the power supply control signal and filtering in the output circuit to obtain three-phase power supply voltage output; when the switching signal in the power supply control signal is single-phase output, the three-phase PWM chopping signal is switched into a single-phase PWM synchronous chopping signal, the three half-bridges complete single-phase synchronous chopping and are filtered in the output circuit to obtain three synchronous single-phase power supply voltage outputs, the three single-phase outputs are connected in parallel to be output as a single-phase second end, and the neutral line of the output circuit is output as a first end of the single-phase power supply voltage.

That is, when three-phase power output is required, under the action of the inverter control circuit 16, 6 switching devices in the three-phase full-bridge inverter circuit 14 obtain an appropriate PWM wave, wherein each half-bridge outputs a pulse voltage generated by chopping the PWM waveform, three half-bridges output sinusoidal wave voltages after LC filtering, three half-bridges form U, V, W three-phase output, the phase of U, V, W output ac voltage meets the requirement of the three-phase power supply, and the U1 point output is a neutral line connected to any one of N and U, V, W phases and N forms a single-phase output. When single-phase full-power output is required, the inverter control circuit 16 makes the PWM modulation waves of three half-bridges in the three-phase full-bridge inverter circuit 14 identical, and the three output points U, V, W have identical phases and are connected together to form a single-phase output terminal L, which forms single-phase full-power output together with the N terminal. In the specific control process of the permanent magnet generator for generating electricity, the inverter control circuit 16 firstly sends a power output signal to the three-phase full-bridge inverter circuit 14, and the three-phase full-bridge inverter circuit 14 performs corresponding power output setting (single-phase PWM setting or three-phase PWM setting), so as to control U, V, W three output points to be connected in parallel or disconnected in parallel. In the process, the working state of the three-phase full-bridge inverter circuit 14 can be obtained in real time, and if a fault occurs, the machine is stopped; if the operation is normal, the output circuit 15 provides a corresponding power output terminal for power output through the corresponding PWM setting output enable.

The embodiment of the utility model uses a single motor to generate winding input and output three-phase four-wire power supply output with a neutral line, uses fewer power electronic elements, reduces heating and component cost, ensures that the output neutral line potential is stable, inputs the single motor three-phase winding, supplies power to positive and negative half waves of alternating current output by the single winding, and improves the efficiency of the motor; meanwhile, the rectification control circuit and the boost control circuit lock the neutral line voltage and the bus voltage, so that the neutral line potential of the three-phase output is more stable; and the three-phase output line can be switched into single-phase full-power output in parallel when needed, so that the overall output efficiency is high, the cost is low, and the economic value and the practical value are remarkable.

Example 2:

Fig. 2 is a block diagram of a second embodiment of a single/three-phase power control circuit for a generator according to the present utility model. An embodiment of the present utility model is a modification of embodiment 1. Specifically, in embodiment 2, the connection manner of each functional component is the same as that of embodiment 1. Differently, the third terminal of the boost control circuit 13 is connected to the second terminal of the rectification control circuit 12; the second end of the boost control circuit 13 is also grounded; the first end of the capacitor C1 is respectively connected with the second end of the rectification control circuit and the first end of the three-phase full-bridge inverter circuit; the second end of the capacitor C1 is connected with the first end of the capacitor C2; the second end of the capacitor C2 is respectively connected with the second end of the boost control circuit and the second end of the three-phase full-bridge inverter circuit; the second end of the capacitor C1 and the first end of the capacitor C2 are respectively connected with the first end of the rectification control circuit and the output neutral line.

That is, in embodiment 2, the positions of the rectifying control circuit 12 and the boosting control circuit 13 are exchanged, the boosting control circuit 13 is placed on the low voltage side, the rectifying control circuit 12 is placed on the high voltage side, the boosting control circuit 13 is actually grounded, and the input is negative. Such a connection still outputs a 2-fold rectified voltage in practice, and the technical effect is the same as in embodiment 1.

Example 3:

Fig. 3 is a block diagram of a third embodiment of a single/three-phase power control circuit for a generator according to the present utility model. Embodiment 3 of the present utility model may be based on embodiment 1 or embodiment 2. Specifically, the boost control circuit 13 includes a first boost circuit 131; the rectification control circuit 12 includes a first three-phase controllable rectification circuit 121.

Specifically, as shown in fig. 4, the first boost circuit in the embodiment of the present invention may be a device component circuit with a boost function, which is composed of an inductance coil L4, a diode D4 and a MOS transistor S1; a first end of the inductance coil L4 constitutes a first end of the boost control circuit 13; the second end of the inductance coil L4 is respectively connected with the first end of the diode D4 and the first end of the MOS tube S1, and the second end of the diode D4 is the second end of the boost control circuit 13; the second end of the MOS transistor S1 constitutes a third end of the boost control circuit 13. Thus, the boost control circuit generates a PWM pulse signal of S1 based on the dc voltage U2. Further, the three-phase controllable rectifying circuit in the embodiment of the invention comprises a silicon controlled rectifier SCR1, a diode D1 connected in series with the silicon controlled rectifier SCR1, a diode D2 connected in series with the silicon controlled rectifier SCR2, a diode D3 connected in series with the silicon controlled rectifier SCR 3; the SCR1 and the diode D1 connected in series, the SCR2 and the diode D2 connected in series, the SCR3 and the diode D3 connected in series are connected in parallel, and are respectively connected with the input of the three-phase power generation winding; the three sets of parallel outputs constitute a first end and a second end of the rectification control circuit 12, respectively. Thus, the three-phase controllable rectifying circuit generates trigger signals of SCR1, SCR2 and SCR3 according to the direct-current voltage U1. The three-phase full-bridge inverter circuit generates corresponding PWM pulse signals of Q1 to Q6 according to single phase or three phases to jointly realize full power output of a three-phase power supply or a single-phase power supply.

It should be noted that fig. 4 only shows a detailed schematic diagram of components when the boost control circuit 13 is at the high voltage end and the rectification control circuit 12 is at the low voltage end; when the boost control circuit 13 is at the low voltage end and the rectifying control circuit 12 is at the high voltage end, the adaptive adjustment can be performed according to fig. 4, so as to obtain a detailed component schematic diagram corresponding to embodiment 2.

Example 4:

Fig. 5 is a block diagram of a fourth embodiment of a single/three-phase power control circuit for a generator according to the present utility model. Embodiment 4 of the present utility model can be based on embodiment 1. As can be seen from fig. 5, the rectification control circuit 12 includes a second three-phase controllable rectification circuit 122; the boost control circuit 13 is replaced with a second permanent magnet generator 132 and a third three-phase controllable rectifying circuit 133; the second permanent magnet generator 132 is electrically connected with a third three-phase controllable rectifying circuit 133 through a three-phase power generation winding input; a first end of the second three-phase controllable rectifying circuit 122 is connected to a first end of the third three-phase controllable rectifying circuit 133; a second end of the third three-phase controllable rectifying circuit 133 is connected to a first end of the three-phase full-bridge inverter circuit 14.

That is, the functional components in embodiment 4 are connected in the same manner as in embodiment 3. Except that boost control circuit 12 is changed to a motor three-phase winding and a three-phase controllable rectifying circuit. Therefore, the three-phase windings of the two motors are rectified and stabilized to U1 by the three-phase controllable rectifying circuits respectively connected, U2 is formed by connecting two outputs in series, the voltage is 2 times U1, and other principles are the same as those of the embodiment 1, so that the same technical effects can be achieved.

Example 5:

Fig. 6 is a block diagram of a fifth embodiment of a single/three-phase power control circuit for a generator according to the present utility model. Embodiment 5 of the present utility model can be based on embodiment 1. As can be seen from fig. 6, the boost control circuit 13 includes a second boost circuit 134; the rectification control circuit 12 includes a fourth three-phase uncontrollable rectification circuit 123 and a third boost circuit 124; the first permanent magnet generator 11 is electrically connected with a fourth three-phase uncontrollable rectification control circuit 123 through a three-phase power generation winding input; a first end of the fourth three-phase uncontrollable rectification control circuit 123 is connected to the third boost circuit 124; the second end of the fourth three-phase uncontrollable rectification control circuit 123 is grounded; a second end of the third boost circuit 124 is connected to a first end of the second boost circuit 134; the first end of the three-phase full-bridge inverter circuit 14 is connected to the third end of the third boost circuit 124, the second end of the fourth three-phase uncontrollable rectification control circuit 123, and the third end of the second boost circuit 134, respectively.

That is, the functional components in embodiment 5 are connected in the same manner as in embodiment 1. Except that the rectification control circuit 12 is changed to a booster circuit and a three-phase uncontrollable rectification circuit. Therefore, the three-phase controllable rectifying and voltage stabilizing circuit is replaced by a common rectifying circuit and then is connected with the boosting circuit. The other principle is the same as that of embodiment 1, and the same technical effects can be achieved.

It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.

It should be noted that in the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "plurality" means at least two.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A generator single/three phase power control circuit comprising: the power supply system comprises a first permanent magnet generator, a boost control circuit, a rectification control circuit, a three-phase full-bridge inverter circuit and an output circuit;

the first end of the output circuit is connected with the output neutral line;

2. The generator single/three-phase power supply control circuit according to claim 1, wherein the three-phase power supply control circuit further comprises an inverter control circuit;

3. The generator single/three-phase power supply control circuit according to claim 1, wherein the three-phase power supply control circuit further comprises a capacitor C1, a capacitor C2;

4. The generator single/three phase power control circuit of claim 1, wherein the second end of the rectification control circuit is also grounded; or, the second end of the boost control circuit is also grounded.

5. A generator single/three phase power supply control circuit according to claim 3, characterized in that the capacitance C1 and the capacitance C2 are the same in capacity.

6. The generator single/three phase power supply control circuit according to claim 1, wherein the output circuit further comprises a capacitor C3, a capacitor C4, a capacitor C5;

7. The generator single/three phase power supply control circuit according to claim 1, wherein the boost control circuit includes a first boost circuit; the rectification control circuit comprises a first three-phase controllable rectification circuit.

8. The generator single/three phase power control circuit of claim 1, wherein the rectification control circuit comprises a second three phase controllable rectification circuit; the boost control circuit comprises a second permanent magnet generator and a third three-phase controllable rectifying circuit;

9. The generator single/three phase power supply control circuit according to claim 1, wherein the boost control circuit includes a second boost circuit; the rectification control circuit comprises a fourth three-phase uncontrollable rectification circuit and a third boost circuit;

10. The generator single/three-phase power control circuit according to claim 7, wherein the three-phase controllable rectifying circuit comprises a silicon controlled rectifier SCR1 and a diode D1 connected in series, a silicon controlled rectifier SCR2 and a diode D2 connected in series, a silicon controlled rectifier SCR3 and a diode D3 connected in series; the silicon controlled rectifier SCR1, the diode D1 connected in series, the silicon controlled rectifier SCR2, the diode D2 connected in series, the silicon controlled rectifier SCR3 and the diode D3 connected in series are connected in parallel in three paths and are respectively connected with the input of a three-phase power generation winding;

And/or the number of the groups of groups,

11. The generator single/three-phase power control circuit according to claim 8, wherein the three-phase controllable rectifying circuit comprises a silicon controlled rectifier SCR1 and a diode D1 connected in series, a silicon controlled rectifier SCR2 and a diode D2 connected in series, a silicon controlled rectifier SCR3 and a diode D3 connected in series; the silicon controlled rectifier SCR1, the diode D1 connected in series, the silicon controlled rectifier SCR2, the diode D2 connected in series, the silicon controlled rectifier SCR3 and the diode D3 connected in series are connected in parallel in three ways and are respectively connected with the input of the three-phase power generation winding.

12. The generator single/three-phase power supply control circuit according to claim 9, wherein the three-phase controllable rectifying circuit comprises a silicon controlled rectifier SCR1 and a diode D1 connected in series, a silicon controlled rectifier SCR2 and a diode D2 connected in series, a silicon controlled rectifier SCR3 and a diode D3 connected in series; the silicon controlled rectifier SCR1, the diode D1 connected in series, the silicon controlled rectifier SCR2, the diode D2 connected in series, the silicon controlled rectifier SCR3 and the diode D3 connected in series are connected in parallel in three paths and are respectively connected with the input of a three-phase power generation winding;

And/or the number of the groups of groups,