Static synchronous reactive compensation device

Abstract

The invention discloses a static synchronous reactive compensation device and relates to the field of circuit protection. The static synchronous reactive compensation device comprises a circuit module and a heat dissipation module. A bus-bar clamp is arranged on the circuit module. The bus-bar clamp is connected with a switching switch through a wire. The switching switch is connected with a compensation circuit. An electric reactor is arranged between the switching switch and the compensation circuit. A fan of 35w-55w is arranged on the heat dissipation module. The static synchronous reactive compensation device is reasonable in structure, novel in technology, capable of saving materials, easy to popularize, good in reactive compensation effect and low in cost. According to the static synchronous reactive compensation device, a traditional SVC type reactive compensation circuit is changed, a new SVG bridge type compensation circuit is adopted, the compensation effect is better, the materials are saved, and the occupied space is reduced.

Description

Technical field [0001] The invention relates to the field of circuit protection, in particular to a static synchronous reactive power compensation device technical background [0002] The safety and reliability of power equipment is an important part of super-large-scale transmission and distribution and the security of power grids. In particular, my country is in a period of rapid economic growth. The power supply load of the State Grid is increasing. The continuous expansion of power supply brings a series of electrical equipment to the power grid. Security issues. In order to avoid various power accidents as much as possible, the task of ensuring the stable operation of the power system is very arduous. [0003] The traditional reactive power compensation device has a single structure, fixed device emissions, and a small capacity of a single device. It cannot be flexible and arbitrarily increase or decrease the capacity, so as to adapt to the lack of original compensation capaci...

AI Technical Summary

Problems solved by technology

[0003] Due to the single structure of the traditional reactive power compensation device, the fixed device discharge, and the small capacity of a single device, it is impossible to increase or decrease the capacity flexibly and at will, so as to adapt to the insufficient original compensation capacity caused by the increase of equipment due to the development of the power consumption unit. In order to increase the capacity of the existing compensation equipment, the traditional static compensation circuit mostly uses the SVC device represented by the TCR. The adjustment speed of the SVC is slow, the response time is long, the operating range is limited, and the harmonics in the current are difficult to be eliminated.

More importantly, the reactor and capacitive elements used in SVC are very large, so that the cost of the compensation device is high, and the volume is large, such as the capacitor reactive power compensation device described in the application number 2007.12.19, wherein for the circuit The capacitor is matched according to 25% and 50% of the total capacity, so the capacity of the capacitor is required to be particularly large

Images