CN204559398U - Wind power generation adjustable fly-back power circuit - Google Patents
Wind power generation adjustable fly-back power circuit Download PDFInfo
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- CN204559398U CN204559398U CN201520125997.3U CN201520125997U CN204559398U CN 204559398 U CN204559398 U CN 204559398U CN 201520125997 U CN201520125997 U CN 201520125997U CN 204559398 U CN204559398 U CN 204559398U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
本实用新型提供一种风力发电可调反激电源电路，包括与风力发电机组输出端连接的滤波电路、与滤波电路连接的整流电路，其特征在于：其还包括控制器U、变压器T和MOS管Q，MOS管的漏极连接至变压器初级线圈的一端，变压器初级线圈的另一端连接至整流电路的输出端，MOS管的源极串联电流采样电阻R3后接地，MOS管的栅极连接至控制器的PWM信号输出端Out，变压器的次级线圈输出作为电源输出V0并形成节点A，变压器的次级线圈输出经电压反馈网络连接至控制器的反馈输入端COMP。本实用新型的风力发电可调反激电源电路，利用反激电源技术将风力发电产生的电能转化成可调稳定电压输出，输入电压在很大的范围内波动时，仍可有稳定的直流电压输出，输出的直流电压在15V~30V可调。
The utility model provides an adjustable flyback power supply circuit for wind power generation, which includes a filter circuit connected to the output end of a wind power generating set and a rectifier circuit connected to the filter circuit, and is characterized in that it also includes a controller U, a transformer T and a MOS Tube Q, the drain of the MOS tube is connected to one end of the primary coil of the transformer, the other end of the primary coil of the transformer is connected to the output terminal of the rectifier circuit, the source of the MOS tube is connected to the ground after the current sampling resistor R3 is connected in series, and the gate of the MOS tube is connected to The PWM signal output terminal Out of the controller, the secondary coil output of the transformer is used as the power supply output V0 and forms node A, and the secondary coil output of the transformer is connected to the feedback input terminal COMP of the controller through a voltage feedback network. The adjustable flyback power supply circuit for wind power generation of the utility model uses the flyback power supply technology to convert the electric energy generated by wind power generation into an adjustable and stable voltage output, and when the input voltage fluctuates in a large range, there can still be a stable DC voltage Output, the output DC voltage is adjustable from 15V to 30V.
Description
技术领域 technical field
本实用新型涉及一种风力发电可调反激电源电路。 The utility model relates to an adjustable flyback power supply circuit for wind power generation.
背景技术 Background technique
风力发电是利用风力带动风车叶片旋转，再透过增速机将旋转的速度提升，来促使发电机发电。风力发电机输出的是13~25V变化的交流电，须经充电器整流，再对蓄电瓶充电，使房里发电机产生的电能变成化学能，然后用有保护电路的逆变电源把电瓶里的化学能转换成交流220V市电使用。由于风力发电机风量不稳定，风力的大小和方向时刻变化，采用上述方法转换成市电后使用仍然具有输出不稳定的缺点。 Wind power generation uses wind power to drive windmill blades to rotate, and then increases the speed of rotation through a speed increaser to drive generators to generate electricity. The output of the wind generator is 13~25V alternating current, which must be rectified by the charger, and then the storage battery is charged to make the electric energy generated by the generator in the room into chemical energy, and then use the inverter power supply with protection circuit to turn the battery into The chemical energy is converted into AC 220V electricity for use. Because the air volume of the wind-driven generator is unstable, and the size and direction of the wind force change all the time, the above-mentioned method still has the disadvantage of unstable output after being converted into commercial power.
发明内容 Contents of the invention
为了解决背景技术中的不足，本实用新型的目的在于克服背景技术的缺陷，提供一种风力发电可调反激电源电路， 直流输出电压可调、稳定。 In order to solve the deficiencies in the background technology, the purpose of this utility model is to overcome the defects of the background technology and provide an adjustable flyback power supply circuit for wind power generation, with adjustable and stable DC output voltage.
为达到上述目的，本实用新型采用的技术方案为：一种风力发电可调反激电源电路，包括与风力发电机组输出端连接的滤波电路、与滤波电路连接的整流电路，其特征在于：其还包括控制器U、变压器T和MOS管Q，MOS管的漏极连接至变压器初级线圈的一端，变压器初级线圈的另一端连接至整流电路的输出端，MOS管的源极串联电流采样电阻R3后接地，MOS管的栅极连接至控制器的PWM信号输出端Out，变压器的次级线圈输出作为电源输出V0并形成节点A，变压器的次级线圈输出经电压反馈网络连接至控制器的反馈输入端COMP。 In order to achieve the above object, the technical solution adopted by the utility model is: an adjustable flyback power supply circuit for wind power generation, including a filter circuit connected to the output end of the wind power generating set, and a rectifier circuit connected to the filter circuit, characterized in that: It also includes a controller U, a transformer T, and a MOS tube Q. The drain of the MOS tube is connected to one end of the primary coil of the transformer, and the other end of the primary coil of the transformer is connected to the output terminal of the rectifier circuit. The source of the MOS tube is connected in series with the current sampling resistor R3 After grounding, the gate of the MOS tube is connected to the PWM signal output terminal Out of the controller, the secondary coil output of the transformer is used as the power output V0 and forms node A, and the secondary coil output of the transformer is connected to the feedback of the controller through the voltage feedback network Input COMP.
本实用新型一个较佳实施例中，进一步包括所述电压反馈网络具有分压电阻（R1）、数字可调电阻（R2）和光电耦合器（VT），分压电阻R1一端连接至节点A，分压电阻R1的另一端通过数字可调电阻（R2）接地，光电耦合器（VT）的光敏二极管的正极通过一三端稳压器CW连接至节点A，负极端连接至分压电阻(R1)和数字可调电阻（R2）之间，光电耦合器（VT）的光敏三极管的集电极连接至控制器的反馈输入端（COMP），发射极接地。 In a preferred embodiment of the present invention, it further includes that the voltage feedback network has a voltage divider resistor (R1), a digital adjustable resistor (R2) and a photocoupler (VT), and one end of the voltage divider resistor R1 is connected to node A, The other end of the voltage dividing resistor R1 is grounded through a digital adjustable resistor (R2), the anode of the photodiode of the photocoupler (VT) is connected to node A through a three-terminal voltage regulator CW, and the negative end is connected to the voltage dividing resistor (R1 ) and the digital adjustable resistor (R2), the collector of the phototransistor of the photocoupler (VT) is connected to the feedback input terminal (COMP) of the controller, and the emitter is grounded.
本实用新型一个较佳实施例中，进一步包括所述MOS管的源极还连接至控制器的电流感测输入端CS。 In a preferred embodiment of the present invention, it further includes that the source of the MOS transistor is also connected to the current sensing input terminal CS of the controller.
本实用新型一个较佳实施例中，进一步包括所述变压器的次级线圈和节点A之间还串联肖特基二极管后并联滤波电容。 In a preferred embodiment of the present invention, it further includes that a Schottky diode is connected in series between the secondary coil of the transformer and node A, and then a filter capacitor is connected in parallel.
本实用新型一个较佳实施例中，进一步包括所述肖特基二极管和节点A之间还连接有稳压器（TS）。 In a preferred embodiment of the present invention, a voltage regulator (TS) is further connected between the Schottky diode and the node A.
本实用新型一个较佳实施例中，进一步包括所述控制器U的型号为LM5023。 In a preferred embodiment of the utility model, it further includes that the model of the controller U is LM5023.
本实用新型的有益之处在于：本实用新型的风力发电可调反激电源电路，利用反激电源技术将风力发电产生的电能转化成可调稳定电压输出，输入电压在很大的范围内波动时，仍可有稳定的直流电压输出，输出的直流电压在15V~30V可调。 The utility model is beneficial in that: the adjustable flyback power supply circuit for wind power generation of the utility model uses the flyback power supply technology to convert the electric energy generated by wind power generation into an adjustable and stable voltage output, and the input voltage fluctuates in a large range , it can still have a stable DC voltage output, and the output DC voltage is adjustable from 15V to 30V.
附图说明 Description of drawings
下面结合附图和具体实施方式对本实用新型作进一步详细的说明。 Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.
图1是本实用新型的优选实施例的电路图。 Fig. 1 is a circuit diagram of a preferred embodiment of the present invention.
图中：10、滤波电路，20、整流电路，30、电压反馈网络。 In the figure: 10, filter circuit, 20, rectification circuit, 30, voltage feedback network.
具体实施方式 Detailed ways
为了使本技术领域的人员更好地理解本实用新型方案，并使本实用新型的上述目的、特征和优点能够更加明显易懂，下面结合实施例及实施例附图对本实用新型作进一步详细的说明。 In order to enable those skilled in the art to better understand the scheme of the utility model, and to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail below in conjunction with the embodiments and accompanying drawings illustrate.
如图1所示，本实用新型提供一种风力发电可调反激电源电路，包括与风力发电机组输出端连接的滤波电路10、与滤波电路10连接的整流电路20、控制器U、变压器T和MOS管Q，以及与变压器T输出端连接的电压反馈网络30，优选控制器U的型号为LM5023，具有反馈输入端COMP、电流感测输入端CS、PWM信号输出端Out，MOS管Q的漏极D连接至变压器T初级线圈L1的一端，变压器T初级线圈L1的另一端连接至整流电路20的输出端，MOS管的源极S串联电流采样电阻R3后接地，MOS管的源极S还连接至控制器U的电流感测输入端CS，MOS管的栅极G连接至控制器的PWM信号输出端Out，变压器的次级线圈输出作为电源输出(V0)并形成节点A，变压器T的次级线圈L2输出经电压反馈网络30连接至控制器U的反馈输入端COMP。 As shown in Figure 1, the utility model provides an adjustable flyback power supply circuit for wind power generation, including a filter circuit 10 connected to the output end of the wind power generating set, a rectifier circuit 20 connected to the filter circuit 10, a controller U, and a transformer T and MOS tube Q, and a voltage feedback network 30 connected to the output end of the transformer T, the model of the preferred controller U is LM5023, which has a feedback input terminal COMP, a current sensing input terminal CS, a PWM signal output terminal Out, and a MOS tube Q The drain D is connected to one end of the primary coil L1 of the transformer T, the other end of the primary coil L1 of the transformer T is connected to the output terminal of the rectifier circuit 20, the source S of the MOS tube is connected to the ground after the current sampling resistor R3 is connected in series, and the source S of the MOS tube is connected to the ground. It is also connected to the current sensing input terminal CS of the controller U, the gate G of the MOS transistor is connected to the PWM signal output terminal Out of the controller, and the output of the secondary coil of the transformer is used as the power supply output (V0) and forms node A, and the transformer T The output of the secondary coil L2 is connected to the feedback input terminal COMP of the controller U via the voltage feedback network 30 .
所述电压反馈网络具有分压电阻R1、数字可调电阻R2和光电耦合器VT，分压电阻R1一端连接至节点A，分压电阻R1的另一端通过数字可调电阻R2接地，光电耦合器VT的光敏二极管的正极通过一三端稳压器CW连接至节点A，负极端连接至分压电阻R1和数字可调电阻R2之间，光电耦合器VT的光敏三极管的集电极连接至控制器的反馈输入端COMP，发射极接地,三端稳压器CW输出一稳定的2.5V电压输入至光电耦合器VT的光敏二极管的正极端。 The voltage feedback network has a voltage dividing resistor R1, a digital adjustable resistor R2 and a photocoupler VT, one end of the voltage dividing resistor R1 is connected to node A, the other end of the voltage dividing resistor R1 is grounded through a digital adjustable resistor R2, and the photocoupler The anode of the photodiode of VT is connected to node A through a three-terminal voltage regulator CW, the negative terminal is connected between the voltage dividing resistor R1 and the digital adjustable resistor R2, and the collector of the phototransistor of the photocoupler VT is connected to the controller The feedback input terminal COMP, the emitter is grounded, and the three-terminal voltage regulator CW outputs a stable 2.5V voltage input to the positive terminal of the photodiode of the photocoupler VT.
所述变压器T的次级线圈L2和节点A之间还串联肖特基二极管D后并联滤波电容C。 A Schottky diode D is connected in series between the secondary coil L2 of the transformer T and the node A, and a filter capacitor C is connected in parallel.
所述肖特基二极管D和节点A之间还连接有稳压器TS。 A voltage regulator TS is also connected between the Schottky diode D and the node A.
基于上述技术特征，本实用新型的电路原理如下：从光电机组中输出的220V交流电经滤波电路10滤波、整流电路20整流输出380V的直流电压，此电压作用到变压器T的初级线圈L1再经MOS管Q和电流采样电阻R3连接到底，控制器U控制其PWM信号Out输出一个高频开关信号作用于MOS管Q的栅极G,快速开关导通的MOS管在变压器T中产生一个快速交变的磁场，并将初级线圈的电压信号耦合到次级线圈输出，在次级线圈产生的感应电压经过肖特基二极管D和滤波电容C后，再经稳压器TS输出稳定的15V~30V可调的直流电压V0。 Based on the above-mentioned technical characteristics, the circuit principle of the utility model is as follows: the 220V AC output from the photoelectric unit is filtered by the filter circuit 10, and the rectifier circuit 20 rectifies and outputs a 380V DC voltage. The tube Q and the current sampling resistor R3 are connected to the bottom, and the controller U controls its PWM signal Out to output a high-frequency switching signal to act on the gate G of the MOS tube Q, and the fast switching MOS tube generates a fast alternating current in the transformer T. The magnetic field, and the voltage signal of the primary coil is coupled to the output of the secondary coil. After the induced voltage generated by the secondary coil passes through the Schottky diode D and the filter capacitor C, the stabilizer TS outputs a stable 15V~30V. Regulated DC voltage V0.
为了进一步提高输出电压的稳定度，采用了从变压器T的次级线圈输出端取样电压进行反馈的电压反馈网络30，其反馈原理如下，输出电压经分压电阻R1和数字可调电阻R2分压后得到采样电压，数字可调电阻R2的电阻值在（40Ω~10KΩ）之间可调，此采样电压与三端稳压器CW提供的2.5V的参考电压进行比较，如果相等，则流过光电耦合器VT的光敏二极管的电流不变，流过光敏三极管的电流不变，控制器的COMP脚电位稳定，输出驱动的占空比不变，输出电压稳定在设定值不变；当输出电压因某种原因偏高时，经分压电阻的分压值就会大于2.5V，则流管光敏二极管的电流增大，则流过光敏三极管的电流增大，控制器的COMP脚电位下降，Out脚输出驱动脉冲的占空比下降，输出电压降低，这样就完成了反馈稳压的过程。 In order to further improve the stability of the output voltage, a voltage feedback network 30 that samples the voltage from the output terminal of the secondary coil of the transformer T for feedback is adopted. The feedback principle is as follows, the output voltage is divided by the voltage dividing resistor R1 and the digital adjustable resistor R2 After obtaining the sampling voltage, the resistance value of the digital adjustable resistor R2 can be adjusted between (40Ω~10KΩ). This sampling voltage is compared with the 2.5V reference voltage provided by the three-terminal voltage regulator CW. If they are equal, flow through The current of the photodiode of the photocoupler VT remains unchanged, the current flowing through the phototransistor remains unchanged, the potential of the COMP pin of the controller is stable, the duty cycle of the output drive remains unchanged, and the output voltage is stable at the set value; when the output When the voltage is too high for some reason, the divided voltage value of the voltage dividing resistor will be greater than 2.5V, then the current of the flow tube photodiode will increase, the current flowing through the phototransistor will increase, and the potential of the COMP pin of the controller will drop. , the duty cycle of the Out pin output drive pulse decreases, and the output voltage decreases, thus completing the process of feedback voltage regulation.
综上，本实用新型的风力发电可调反激电源电路，利用反激电源技术将风力发电产生的电能转化成可调稳定电压输出，输入电压在很大的范围内波动时，仍可有稳定的直流电压输出，输出的直流电压在15V~30V可调。 To sum up, the adjustable flyback power supply circuit for wind power generation of the present utility model uses the flyback power supply technology to convert the electric energy generated by wind power generation into an adjustable and stable output voltage. When the input voltage fluctuates in a large range, there is still stability DC voltage output, the output DC voltage is adjustable from 15V to 30V.
上述实施例为本实用新型较佳的实施方式，但本实用新型的实施方式并不受所述实施例的限制，其它的任何未背离本实用新型的精神实质与原理下所作的改变、修饰、替代、组合、简化均应为等效的置换方式，都包含在本实用新型的保护范围之内。因此，本实用新型的保护范围应该以权利要求所界定的保护范围为准。 The above-mentioned embodiment is the preferred implementation mode of the present utility model, but the implementation mode of the present utility model is not limited by the described embodiment, and any other changes, modifications, modifications, Substitution, combination, and simplification should all be equivalent replacement methods, and are all included in the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be determined by the protection scope defined in the claims.
Claims (6)
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| CN201520125997.3U CN204559398U (en) | 2015-03-05 | 2015-03-05 | Wind power generation adjustable fly-back power circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888481A (en) * | 2019-11-07 | 2020-03-17 | 深南电路股份有限公司 | Output voltage adjustable circuit, control method of output voltage adjustable circuit and chip |
| CN112511037A (en) * | 2020-11-30 | 2021-03-16 | 天地科技股份有限公司上海分公司 | Self-powered intrinsic safety type sensor |
| CN112904127A (en) * | 2021-01-26 | 2021-06-04 | 浙江亚太机电股份有限公司 | Low-frequency magnetic field interference generating device |
-
2015
- 2015-03-05 CN CN201520125997.3U patent/CN204559398U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888481A (en) * | 2019-11-07 | 2020-03-17 | 深南电路股份有限公司 | Output voltage adjustable circuit, control method of output voltage adjustable circuit and chip |
| CN110888481B (en) * | 2019-11-07 | 2022-04-12 | 深南电路股份有限公司 | Output voltage adjustable circuit, control method of output voltage adjustable circuit and chip |
| CN112511037A (en) * | 2020-11-30 | 2021-03-16 | 天地科技股份有限公司上海分公司 | Self-powered intrinsic safety type sensor |
| CN112904127A (en) * | 2021-01-26 | 2021-06-04 | 浙江亚太机电股份有限公司 | Low-frequency magnetic field interference generating device |
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