A Generator Drive System for Electromagnetic Compatibility Testing
A driving system and electromagnetic compatibility technology, which is applied in the direction of motor generator testing, testing of electrical devices in transportation, and measurement of interference from external sources, etc. It can solve the adverse effects of the anechoic chamber environment, occupy a large experimental space, and have low control accuracy. problems, to achieve accurate and reliable test results
Active Publication Date: 2019-02-26
GUANGZHOU CHANGEN ELECTRONICS TECH CO LTD
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Problems solved by technology
Among them, although the pure motor drive scheme will not generate additional electromagnetic interference, because the speed of the pure motor itself cannot be adjusted, it can only be adjusted through transmission methods such as gear sets, and the accuracy of speed adjustment cannot be guaranteed; while the diesel engine is used as the When driving the device, the diesel engine itself is bulky and needs to occupy a large experimental space. In addition, the diesel engine is noisy and emits exhaust gas during operation, which has a negative impact on the environment of the anechoic chamber, and the speed control accuracy of the diesel engine is not high. As a driving device, the air motor overcomes the problems of the size, noise and exhaust gas of the diesel engine, but the speed of the air motor depends on the size of the driving air pressure. Due to the low control accuracy of the air pressure, it is also unable to meet the precise control of the speed of the driving device.
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, wherein the schematic embodiments and descriptions are only used to explain the present invention, but are not intended to limit the present invention.
[0032] Such as figure 1 As shown, it is a structural schematic diagram of the present invention, a generator drive system for electromagnetic compatibility testing, including a generator under test 100, a transmission device 200, a drive device 300, a first photoelectric conversion module 400, and a second photoelectric analog 500 , a control module 600 and a power module 700, wherein the measuring generator 100, the transmission device 200, the driving device 300, the first photoelectric conversion module 400, the second photoelectric analog 500 and the control module 600 are connected in sequence, and the driving device 300 is also connected to the power module 700 connected; the driving devic...
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The invention provides a generator drive system for electromagnetic compatibility testing, including a generator under test, a transmission device, a drive device, a power supply module, a first photoelectric conversion module, a second photoelectric conversion module and a control device, wherein the drive The device includes a variable frequency motor, a frequency converter, and a speed monitoring device; when the drive system provided by the present invention is used for electromagnetic compatibility testing, the drive device can be placed in an anechoic chamber, and the speed control accuracy of the control device for the drive device can reach 1RPM , and the actual speed of the driving device can be obtained in real time, which improves the accuracy and reliability of the test results.
Description
technical field [0001] The invention relates to the field of electromagnetic compatibility testing, in particular to a generator drive system used for electromagnetic compatibility testing. Background technique [0002] Carrying out electromagnetic compatibility (EMC) tests for new energy vehicles is the basic guarantee to ensure the safe and reliable operation of vehicles, and it is also the key to new energy vehicle product research and development, testing and certification, and industrialization development. Computer management and electronic control systems widely used in modern automobiles must comply with the measurement requirements of automotive electronic electromagnetic compatibility, including interference testing (EMI) and immunity testing (EMS). At present, my country has relevant EMC detection and test technical method standards for traditional automobiles, and the corresponding detection and test capabilities are gradually improving. However, for new energy v...
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IPC IPC(8): G01R31/00G01R31/34
CPCG01R31/001G01R31/006G01R31/34
Inventor 李楠李军
Owner GUANGZHOU CHANGEN ELECTRONICS TECH CO LTD