Dynamic reactive power compensation control method, device and equipment and readable storage medium

Abstract

The invention discloses a dynamic reactive power compensation control method, device and equipment and a readable storage medium, and the method comprises the steps: firstly receiving a positive sequence voltage outputted by a grid-connected point bus connected with a reactive power compensation device, and if the positive sequence voltage is out of a normal voltage range, indicating that a power system is in a fault state at the moment; if yes, the adjustment reference voltage of the ride-through voltage set according to the positive sequence voltage, the rated reactive current of reactive compensation and the corresponding initial reactive current when the positive sequence voltage is within the target range can be obtained, and the adjustment reference voltage of the ride-through voltage set according to the positive sequence voltage, the rated reactive current and the initial reactive current can be obtained according to the received positive sequence voltage and the obtained reference voltage, the rated reactive current and the initial reactive current. And determining a target reactive current to be output in the current fault state. Obviously, the output target reactive current can be dynamically adjusted according to the actual condition of the power system, the situation that the same set reactive current is output under all fault conditions is avoided, dynamic reactive adjustment is achieved, complex faults can be better adapted, and the stability of the power system is improved.

Description

technical field [0001] The present application relates to the technical field of power systems, and more particularly, to a control method, apparatus, device, and readable storage medium for dynamic reactive power compensation. Background technique [0002] Reactive power compensation is a technology that improves the power factor of the power grid in the power supply system, reduces the loss of power supply transformers and transmission lines, improves power supply efficiency, and improves the power supply environment. [0003] The rapid development of the power grid has brought opportunities for the wide application of reactive power compensation devices, which have become an important equipment for reactive power support in the power system. However, at present, the reactive power compensation device connected to the power system has a relatively weak ability to deal with complex faults. During complex faults, phenomena such as overcurrent and overvoltage are prone to occ...

AI Technical Summary

Problems solved by technology

However, the reactive power compensation devices connected to the current power system are relatively weak in dealing with complex faults, and overcurrent, overvoltage and other phenomena are prone to occur during complex faults, resulting in tripping of the power system

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