Power amplifier used for intelligent substation testing system

A technology for power amplifiers and smart substations, applied in control/regulation systems, output power conversion devices, conversion of DC power input to DC power output, etc., can solve problems such as serious heat generation, difficulty in improving power density, and low efficiency of linear power amplifiers , to achieve the effect of improving efficiency, increasing power density, ensuring stability and safety
CN102969905AInactive Publication Date: 2013-03-13ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
Publication Date
2013-03-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a power amplifier used for an intelligent substation testing system. The power amplifier comprises a power supply input module for outputting the 220V alternating-current voltage, a rectifier bridge for rectifying the 220V alternating-current voltage into the 300V direct-current voltage, a DC / DC (direct-current to direct-current) converter for converting the 300V direct-current voltage into the 1-150V direct-current voltage and a DC / AC (direct-current to alternating-current) converter for carrying out power amplification and output on a reference signal, and the four components are connected in sequence. With the adoption of the power amplifier used for the intelligent substation testing system, the efficiency of the power amplifier is improved, and the power intensity of the power amplifier is increased; and in addition, the power amplifier can be further provided with multiple protection design of over-current protection and over-voltage protection, so that the stability and the security of the system in operation are ensured.
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Description

technical field

[0001] The invention relates to a power amplifier, in particular to a power amplifier used in an intelligent substation test system. The invention belongs to the technical field of intelligent substation testing. Background technique

[0002] With the rapid development of communication network technology, photoelectric transformer technology, and digital protection technology, many manufacturers and research institutes have done a lot of innovative research work on smart grid substation technology, and have gained experience and experience in smart grid digital substation research. results. In short, the digital substation is an important part of building a unified and strong smart grid. The digital substation will change the primary and secondary equipment of the traditional substation, with the primary and secondary equipment of the substation as the digital object, based on the high-speed network communication platform, The protection and measurement and...

Claims

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