High potential direct current (DC) voltage energy-taking power supply

Abstract

The invention provides a high potential direct current (DC) voltage energy-taking power supply which is good in electrical isolation performance, and is capable of meeting the requirement of power supply of a high potential electronic circuit and stably working under the condition of wider DC input voltage range; and the DC voltage energy-taking power supply is rapid in starting speed so as to maintain stable rated output under the condition of lower DC voltage input, is good in anti-interference performance so as to be capable of normally working in the severe electromagnetic environment and is small in volume so as to meet the compact design of a device.

Description

A high-potential DC voltage energy harvesting power supply technical field The invention belongs to the technical field of power electronics, and in particular relates to a high-potential DC voltage energy-taking power supply. Background technique With the implementation of my country's "West to East Power Transmission" strategy and the expansion of the scale of the interconnected grid, the problem of voltage stability is particularly prominent. The main problem of the super-large load center formed in the southeast coast is that the dynamic reactive power support is increasingly insufficient. In the past two decades, large-scale power outages caused by voltage stability and voltage collapse have occurred in many parts of the world, and voltage collapse accidents have also occurred many times in my country. Static Synchronous Compensator (STATCOM, Static Synchronous Compensator) is one of the effective measures to solve these problems. It has superior performance in impro...

AI Technical Summary

Problems solved by technology

In the case of short-term faults in the system, the power supply will not work normally, and short-term faults (fault time generally not exceeding 1s) are likely to exist in the AC system, and it is difficult for the power supply to support more than 1s

If the AC voltage energy harvesting method is used alone, it will affect the operational reliability of power electronic devices

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