Bothway reactive voltage adjusting device

Abstract

The invention discloses a bothway voltage reactive adjusting device, and relates to a high voltage bus. The bothway reactive voltage adjusting device comprises a transformer, an on-load tap-changer, a first circuit breaker, a second circuit breaker, a capacitor bank, an electric reactor, a current transformer, a voltage transformer and a controller. A tap on the transformer is electrically connected with the on-load tap-changer which is electrically connected with the first circuit breaker and the second circuit breaker, the first circuit breaker is electrically connected with the electric reactor, the second circuit breaker is electrically connected with the capacitor bank, the controller is electrically connected with the on-load tap-changer, the first circuit breaker, the second circuit breaker, the current transformer and the voltage transformer, and the on-load tap-changer, the current transformer and the voltage transformer are electrically connected with the high voltage bus. The bothway reactive voltage adjusting device is simple in structure, capable of achieving bothway reactive voltage adjusting, free of flashy flow and current impact, accurate in voltage controlling, capable of effectively improving the voltage stability and the percent of pass of a partial electric network, and capable of enabling a power distribution system to be safer and more stable.

Description

technical field [0001] The invention relates to a device for bidirectional reactive power regulation voltage. Background technique [0002] Voltage is an important symbol to measure power quality. On the one hand, voltage quality affects the power supply quality of the power system, and also affects the safe operation and economic operation of the power system. Too high or too low voltage will affect the life and efficiency of electrical equipment, especially voltage collapse, which has caused power system load loss and even large-scale power outages, causing major losses. [0003] The voltage level of the power system is a concrete manifestation of the reactive power balance of the power system. In the power supply network, most of the loads require reactive power, and the reactive power must be obtained from somewhere in the network. Although the reactive power is basically It does not consume energy, but the transmission of reactive power along the grid will cause active...

AI Technical Summary

Problems solved by technology

Although this technical solution can carry out moderate two-way reactive power adjustment, the result is complicated and the cost is high

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