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A static VAR compensator is a set of electrical devices for providing fast-acting reactive power on high-voltage electricity transmission networks. SVCs are part of the Flexible AC transmission system device family, regulating voltage, power factor, harmonics and stabilizing the system. A static VAR compensator has no significant moving parts (other than internal switchgear). Prior to the invention of the SVC, power factor compensation was the preserve of large rotating machines such as synchronous condensers or switched capacitor banks.
Power distribution network voltage fluctuation cooperative governance method and device, computer equipment, medium and product
This application relates to a method, device, computer equipment, medium, and product for collaborative management of voltage fluctuations in distribution networks. The method includes: obtaining the available reactive power adjustment margin of distributed photovoltaic (PV) nodes under current operating conditions, and then obtaining the reactive power margin deficit to determine candidate configuration nodes and compensation capacity ranges for static var compensators (SVCs); constructing a multi-objective optimization function; selecting reactive power compensation nodes from the candidate configuration nodes; obtaining the reactive power compensation capacity of the reactive power compensation nodes according to the compensation capacity range; using distributed PV nodes, reactive power compensation nodes, PV active power capacity, PV reactive power capacity, and reactive power compensation capacity as initial configuration parameters; solving the multi-objective optimization function in multiple rounds to obtain target configuration parameters; updating the current distribution network configuration according to the target configuration parameters; and collaboratively managing voltage fluctuations in the distribution network based on distributed PV nodes and reactive power compensation nodes. This method can improve the accuracy of management.
Owner:ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD