Performance test system of power supply filter in simulated actual working state

A technology of actual working state, power filter, applied in environment/reliability test, measurement of interference from external sources, instruments, etc., can solve the problem of inability to meet the requirements of anti-electromagnetic pulse, difficult to effectively ensure the safety of power supply system, lack of accurate data, etc. problem, to achieve the effect of high reliability, scientific design and convenient operation

Pending Publication Date: 2019-12-20
INST OF DEFENSE ENG ACADEMY OF MILITARY SCI PLA CHINA
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Problems solved by technology

Therefore, important indicators such as rated power, suppressed frequency range, insertion loss, and shielding effectiveness of the power filter under actual working conditions have not been tested. Safety, etc. Therefore, how to provide a performance test system for power filters under simulated actual working conditions has become a long-term technical demand for those skilled in the art

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  • Performance test system of power supply filter in simulated actual working state

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Embodiment Construction

[0019] The present invention can be explained in more detail by the following examples, and the present invention is not limited to the following examples;

[0020] combined with figure 1 The performance test system of a power filter under the simulated actual working condition includes a high-power power distribution cabinet 1, an electromagnetic shielding room 2 for testing, a high-power load 3, an analog signal source 4, a power amplifier 5, and a spectrum analysis Instrument 6, transmitting antenna 7, receiving antenna 8, tested power filter 9 and transformer 11, the electromagnetic shielding room 2 for testing is a steel plate welding type shielding room, and a spectrum analyzer is arranged inside the electromagnetic shielding room 2 for testing 6. The spectrum analyzer 6 is connected to the receiving antenna 8, and the spectrum analyzer 6 and the receiving antenna 8 are arranged on the working platform. During specific implementation, the working platform is set to a woo...

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Abstract

The invention discloses a performance test system of a power supply filter in a simulated actual working state. The performance test system relates to the technical field of testing, electromagnetic compatibility and electromagnetic protection. The performance test system can realize state simulation of various application environments, so that performance testing and practical application are perfectly combined; and the performance test system can truly obtain a plurality of important indexes such as a suppression frequency range, insertion loss, shielding effectiveness, actual power and stability of the power supply filter in an actual working state through determining performance tests under a power-on loading condition, avoids the influences of a signal source radiation coupling effect, a cable conduction coupling effect, an inductance magnetic saturation effect, a temperature effect and the like on the performance tests in conventional testing, effectively solves meets the use requirements of various electromagnetic shielding bodies on the power supply filter, has the advantages of scientific design, convenient operation and high reliability, and is suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to the fields of testing technology, electromagnetic compatibility technology and electromagnetic protection technology, in particular to a performance test system of an anti-electromagnetic pulse power filter, and in particular to a performance test system of a power filter under simulated actual working conditions. Background technique [0002] It is known that the power filter is an important protective device used in the electromagnetic shielding room, and all the strong current lines leading into or out of the electromagnetic shielding room need to install a power filter at the incoming line end of the equipment. The power supply filter generally adopts a low-pass passive filter, which allows effective signals lower than the cut-off frequency to pass through, and filters out interference signals higher than the cut-off frequency. Whether it can function will directly affect the power supply in the electromagnetic shielding roo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/001G01R31/003
Inventor 刘锋沈俊张鏖董志华吴文谊苗健王雪娟
Owner INST OF DEFENSE ENG ACADEMY OF MILITARY SCI PLA CHINA
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