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CN106444704A - Current transformer controller testing system - Google Patents

Current transformer controller testing system Download PDF

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Publication number
CN106444704A
CN106444704A CN201610847665.5A CN201610847665A CN106444704A CN 106444704 A CN106444704 A CN 106444704A CN 201610847665 A CN201610847665 A CN 201610847665A CN 106444704 A CN106444704 A CN 106444704A
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CN
China
Prior art keywords
converter controller
output
signal
input device
control unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610847665.5A
Other languages
Chinese (zh)
Inventor
刘维洋
温子淇
赵千
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Dalian R&D Co Ltd
Original Assignee
CRRC Dalian R&D Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CRRC Dalian R&D Co Ltd filed Critical CRRC Dalian R&D Co Ltd
Priority to CN201610847665.5A priority Critical patent/CN106444704A/en
Publication of CN106444704A publication Critical patent/CN106444704A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00Testing or monitoring of control systems or parts thereof
    • G05B23/02Electric testing or monitoring
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Inverter Devices (AREA)

Abstract

The invention provides a current transformer controller testing system which comprises at least one set of input equipment, at least one set of output equipment and a master control unit. At least one set of input equipment and at least one set of output equipment are connected with the master control unit. At least one set of input equipment and at least one set of output equipment are connected with a current transformer controller. The master control unit makes at least one set of input equipment generate a testing signal and input the testing signal to the current transformer controller, and furthermore the master control unit makes at least one set of output equipment receive and display an output signal of the current transformer controller. The current transformer controller testing system provided by the invention performs controlling on at least one set of input equipment and at least one set of output equipment through the master control unit for testing the current transformer controller, thereby improving efficiency in testing the current transformer controller.

Description

Converter controller test system
Technical Field
The invention relates to a converter controller technology, in particular to a converter controller testing system.
Background
Nowadays, electric locomotives, subway trains, light rail trains and the like all adopt electric traction technology widely. The converter controller is a control center of the converter and is an important component of the converter in the application of the electric traction technology. In the production process of the converter controller, the converter controller needs to be tested to adjust the control precision of the converter controller.
In the prior art, the test of the converter controller is completed through manual test.
However, with the prior art, the efficiency of testing the converter controller is low.
Disclosure of Invention
The invention provides a converter controller testing system, which improves the testing efficiency of a converter controller.
The invention provides a converter controller test system, comprising: the converter controller comprises at least one input device, at least one output device and a main control unit, wherein the at least one input device and the at least one output device are respectively connected with the main control unit, and the at least one input device and the at least one output device are respectively connected with the converter controller;
the main control unit is used for controlling the at least one input device to input a test signal to the converter controller and controlling the at least one output device to display an output signal of the converter controller;
the at least one input device is used for generating and inputting the test signal to the converter controller;
the at least one output device is used for receiving and displaying the output signal of the converter controller.
In an embodiment of the present invention, the system further includes: and the signal path switching system is connected with the at least one input device and the at least one output device and is used for controlling the connection and disconnection of the at least one input device and the at least one output device with the converter controller.
In an embodiment of the present invention, the system further includes: and the power supply equipment is used for supplying power to the converter controller.
In an embodiment of the present invention, the system further includes: a communication interface for providing an interface of a controller area network, CAN, Ethernet, and an asynchronous transfer standard interface that comply with communication protocol requirements: RS232 and RS 485;
the at least one input device and the at least one output device are respectively connected with the main control unit through the communication interface, and the at least one input device and the at least one output device are respectively connected with the converter controller through the communication interface.
In an embodiment of the invention, the at least one input device is one or more of:
a program-controlled signal generator;
program-controlled alternating voltage current source;
a program-controlled direct current source;
a programmable dc voltage source.
In an embodiment of the invention, the at least one output device is one or more of:
a program-controlled oscilloscope;
a program-controlled digital multimeter.
In an embodiment of the present invention, the program-controlled signal generator is configured to generate and output a voltage signal;
or,
two paths of voltage signals with different amplitudes, frequencies and signal shape characteristics are generated or output.
In an embodiment of the present invention, the program-controlled ac voltage current source is configured to generate and output an ac sinusoidal voltage or an ac sinusoidal current signal with adjustable amplitude and frequency characteristics.
In an embodiment of the present invention, the program-controlled dc current source is configured to generate and output a dc current signal with an adjustable amplitude.
In an embodiment of the present invention, the program-controlled dc voltage source is configured to generate and output a dc voltage signal with an adjustable amplitude.
In an embodiment of the present invention, the program-controlled oscilloscope is configured to acquire an amplitude, a frequency, a period, a high level, a low level, a maximum value, a minimum value, and/or a phase of a single-path or multi-path voltage signal output by the converter;
and feeds back the acquisition result to the main control unit.
In an embodiment of the present invention, the program-controlled digital multimeter is configured to collect effective values and amplitudes of various voltage or current signals output by the converter controller;
and/or the presence of a gas in the gas,
acquiring impedance characteristics of a specific position of the converter controller;
and feeds back the acquisition result to the main control unit.
The invention provides a converter controller test system which comprises at least one input device, at least one output device and a main control unit. At least one input device and at least one output device are respectively connected with the main control unit, and at least one input device and at least one output device are respectively connected with the converter controller. The main control unit controls at least one input device to generate and input a test signal to the converter controller, and controls at least one output device to receive and display an output signal of the converter controller. According to the converter controller testing system, the main control unit controls the at least one input device and the at least one output device to test the converter controller, and therefore testing efficiency of the converter controller is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a converter controller test system according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a converter controller test system according to a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 1 is a schematic structural diagram of a first converter controller test system according to an embodiment of the present invention, and as shown in fig. 1, the converter controller test system provided in this embodiment includes: at least one input device 1, at least one output device 2 and a main control unit 3. At least one input device 1 and at least one output device 2 are each connected to a master control unit 3, and at least one input device 1 and at least one output device 2 are each connected to a converter controller 4. The main control unit 3 is used for controlling at least one input device 1 to input a test signal to the converter controller 4, and controlling at least one output device 2 to display an output signal of the converter controller 4. At least one input device 1 is used to generate and input the test signal to the converter controller 4. At least one output device 2 is used to receive and display the output signal of the converter controller 4.
Specifically, in the test process of the converter controller 4, the main control unit 3 controls the at least one input device 1 to generate a test signal and input the test signal to the converter controller 4, and the test signals input by the at least one input device 1 to the converter controller 4 may be the same or different and may be input to the converter controller 4 at the same time or at different times, which is not limited herein. After the detection signal enters the converter controller 4, the detection signal passes through the inside of the converter controller 4, and an output signal of the test signal passing through the converter controller 4 is obtained. The main control unit 3 controls at least one output device 2 to receive and display the output signal of the converter controller 4. Wherein the output signal is used for representing the change situation of the test signal after passing through the converter controller 4.
The converter controller test system provided by the embodiment comprises at least one input device, at least one output device and a main control unit. At least one input device and at least one output device are respectively connected with the main control unit, and at least one input device and at least one output device are respectively connected with the converter controller. The main control unit controls at least one input device to generate and input a test signal to the converter controller, and controls at least one output device to receive and display an output signal of the converter controller. According to the converter controller testing system provided by the embodiment, the main control unit controls the at least one input device and the at least one output device to test the converter controller, so that the testing efficiency of the converter controller is improved.
Further, in the first embodiment, the converter controller testing system further includes: and a signal path switching system. The signal path switching system is connected with at least one input device 1 and at least one output device 2, and is used for controlling the connection and disconnection of the at least one input device 1 and the at least one output device 2 with the converter controller 4.
The connection and disconnection of at least one input device 1 and the converter controller 4 are controlled by a signal path switching system, so that a test signal generated by at least one input device 1 is input to the converter controller 4 after the signal path switching system connects the test signal with the converter controller 4; the signal path switching system controls the connection and disconnection of the at least one output device 2 to and from the converter controller 4, so that the at least one output device 2 receives the output signal of the converter controller 4 only after the signal path switching system connects the at least one output device 2 to the converter controller 4.
Optionally, the signal path switching system comprises: a plurality of general relay boards and/or a plurality of relay matrix boards. All board cards are connected with the main control unit 3 through an internal communication bus, so that control instructions of the main control unit 3 are received, and the connection and disconnection between the at least one input device 1 and the at least one output device 2 and the converter controller 4 are controlled according to the control instructions.
When at least one input device 1 generates different test signals and is independent of each other, the signal path switching system can control the connection and disconnection of at least one input device 1 and the converter controller 4 to form different test signal paths, control the connection and disconnection of at least one output device 2 and the converter controller 4, and receive the output signals of the test signals after passing through the converter controller 4, so that the test of the converter controller is completed by using different test signals.
Optionally, the main control unit 3 comprises an automatic test program. The automatic test program is used for controlling the signal path switching system according to the program, so that the connection and disconnection between the at least one input device 1 and the at least one output device 2 and the converter controller 4 are controlled, and the automatic test of the converter controller 4 is completed.
Optionally, the main control unit 3 and the signal path switching system are integrated in a chassis having a backplane data bus, and the main control unit 3 and the signal path switching system implement data exchange and communication through a backplane data center line.
Alternatively, the at least one input device 1, the at least one output device 2 and the main control unit 3 are connected via ethernet, and data communication is achieved via ethernet.
Optionally, the at least one input device 1, the at least one output device 2, and the converter controller 4 are physically wired to connect through a signal path switching system, so as to electrically connect the converter controller 4 with the at least one input device 1 and the at least one output device 2.
Further, in the first embodiment, the converter controller testing system further includes: a power supply device. The power supply device is used for supplying power to the converter controller 4.
In particular, the power supply apparatus is capable of providing one or more of a variety of power supplies of different voltage levels to the converter controller 4. Optionally, the power supply device can also supply power to the at least one input device 1, the at least one output device 2.
Further, in each of the above embodiments, the converter controller testing system further includes a communication interface. The communication interface is used for providing a Controller Area Network (CAN) and an ethernet interface and an asynchronous transmission standard interface which meet the requirements of a communication protocol: RS232 and RS 485. The at least one input device 1 and the at least one output device 2 are each connected to the main control unit 3 via a communication interface, and the at least one input device 1 and the at least one output device 2 are each connected to the converter controller 4 via a communication interface.
Optionally, the main control unit 3 controls the communication interface to communicate with the converter controller 4 through CAN or ethernet or RS232 or RS 485.
Fig. 2 is a schematic structural diagram of a second converter controller test system according to an embodiment of the present invention, and as shown in fig. 2, at least one input device is one or more of the following: a program-controlled signal generator 21; a programmable ac voltage current source 22; a program controlled direct current source 23; a programmable dc voltage source 24. The at least one output device is one or more of: a program-controlled oscilloscope 25; a programmed digital multimeter 26.
The program-controlled signal generator 21 is configured to generate and output a voltage signal, or generate or output two voltage signals with different amplitudes, frequencies, and signal shape characteristics.
In particular, the programmable signal generator 21 provides sinusoidal, square wave or dc voltage signals of various amplitudes, frequencies to the converter controller 4 under test. Or, the main control unit 3 controls the program-controlled signal generator 21 to generate or output one or two paths of voltage signals with different amplitudes, frequencies and signal shape characteristics through ethernet communication, and the signal shape includes: sinusoidal, pulsed or direct current.
The program-controlled alternating current voltage current source 22 is configured to generate and output an alternating current sinusoidal voltage or an alternating current sinusoidal current signal with adjustable amplitude and frequency characteristics, for example, the main control unit 3 controls the program-controlled alternating current voltage current source 22 to output, the program-controlled alternating current voltage current source 22 provides a single-channel output, and the main control unit 3 controls the output of the single-channel output to be an alternating current sinusoidal voltage signal or an alternating current sinusoidal current signal.
In particular, the programmable ac voltage current source 22 is used to provide sinusoidal wave voltage and current signals of various frequencies and amplitudes to the converter controller 4 under test. Or, the main control unit 3 controls the program-controlled ac voltage current source 22 to generate and output an ac sinusoidal voltage or ac sinusoidal current signal with adjustable amplitude and frequency characteristics through ethernet communication.
And the program-controlled direct current source 23 is used for generating and outputting a direct current signal with adjustable amplitude.
In particular, the programmable dc current source 23 is used to provide dc current signals of various magnitudes to the converter controller 4 under test. Or, the main control unit 3 controls the program-controlled dc current source 23 to generate and output a dc current signal with adjustable amplitude through ethernet communication.
And the program-controlled direct-current voltage source 24 is used for generating and outputting a direct-current voltage signal with adjustable amplitude.
Specifically, the programmable dc voltage source 24 is used to provide dc voltage signals of various magnitudes to the converter controller 4 under test. Or, the main control unit 3 controls the program-controlled dc voltage source 24 to generate and output a dc voltage signal with adjustable amplitude through ethernet communication.
And the program control oscilloscope 25 is used for acquiring the amplitude, frequency, period, high level, low level, maximum value, minimum value and/or phase of the single-path or multi-path voltage signal output by the converter controller and feeding back an acquisition result to the main control unit 3.
Optionally, the programmable oscilloscope 25 feeds back the acquisition result to the main control unit 3 through ethernet communication. And after receiving the acquisition result, the main controller 3 judges the test result of the converter controller 4 according to the acquisition result.
And the program-controlled digital multimeter 26 is used for acquiring effective values and amplitude values of various voltage or current signals output by the converter controller, and/or acquiring impedance characteristics of a specific position of the converter controller, and feeding back an acquisition result to the main control unit 3.
Optionally, the programmed digital multimeter 26 feeds back the acquisition result to the main control unit 3 through ethernet communication. After receiving the acquisition result, the main control unit 3 judges the test result of the converter controller 4 according to the acquisition result.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (12)

1. A converter controller test system, comprising:
the converter controller comprises at least one input device, at least one output device and a main control unit, wherein the at least one input device and the at least one output device are respectively connected with the main control unit, and the at least one input device and the at least one output device are respectively connected with the converter controller;
the main control unit is used for controlling the at least one input device to input a test signal to the converter controller and controlling the at least one output device to display an output signal of the converter controller;
the at least one input device is used for generating and inputting the test signal to the converter controller;
the at least one output device is used for receiving and displaying the output signal of the converter controller.
2. The system of claim 1, further comprising: and the signal path switching system is connected with the at least one input device and the at least one output device and is used for controlling the connection and disconnection of the at least one input device and the at least one output device with the converter controller.
3. The system of claim 1, further comprising: and the power supply equipment is used for supplying power to the converter controller.
4. The system according to any one of claims 1-3, further comprising: a communication interface for providing an interface of a controller area network, CAN, Ethernet, and an asynchronous transfer standard interface that comply with communication protocol requirements: RS232 and RS 485;
the at least one input device and the at least one output device are respectively connected with the main control unit through the communication interface, and the at least one input device and the at least one output device are respectively connected with the converter controller through the communication interface.
5. The system of claim 4, wherein the at least one input device is one or more of:
a program-controlled signal generator;
program-controlled alternating voltage current source;
a program-controlled direct current source;
a programmable dc voltage source.
6. The system of claim 5, wherein the at least one output device is one or more of:
a program-controlled oscilloscope;
a program-controlled digital multimeter.
7. The system of claim 6, wherein the programmable signal generator is configured to generate and output a voltage signal;
or,
two paths of voltage signals with different amplitudes, frequencies and signal shape characteristics are generated or output.
8. The system of claim 6, wherein the programmable AC voltage current source is configured to generate and output an AC sinusoidal voltage or AC sinusoidal current signal with adjustable amplitude and frequency characteristics.
9. The system of claim 6, wherein the programmable dc current source is configured to generate and output a dc current signal with an adjustable amplitude.
10. The system of claim 6, wherein the programmable DC voltage source is configured to generate and output a DC voltage signal with an adjustable amplitude.
11. The system of claim 6, wherein the programmable oscilloscope is used for acquiring the amplitude, frequency, period, high level, low level, maximum value, minimum value and/or phase of the single-path or multi-path voltage signal output by the converter controller;
and feeds back the acquisition result to the main control unit.
12. The system of claim 6, wherein the programmable digital multimeter is configured to collect effective values and amplitudes of various voltage or current signals output by the converter controller;
and/or the presence of a gas in the gas,
acquiring impedance characteristics of a specific position of the converter controller;
and feeds back the acquisition result to the main control unit.
CN201610847665.5A 2016-09-26 2016-09-26 Current transformer controller testing system Pending CN106444704A (en)

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Application Number Priority Date Filing Date Title
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CN109774543A (en) * 2019-01-11 2019-05-21 中车青岛四方机车车辆股份有限公司 A kind of train-installed power supply debugging system
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CN111884893A (en) * 2020-06-12 2020-11-03 中车青岛四方机车车辆股份有限公司 Input and output signal acquisition system and test method

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