AVC (automatic voltage control) system-based reactive voltage optimization method and device

Abstract

The embodiment of the application discloses an AVC (Automatic Voltage Control) system-based reactive voltage optimization method. The method comprises the following steps of: receiving a CIM (Common Information Model) which is derived through an SCADA (Supervisory Control And Data Acquisition) system; receiving input and switching out status information of reactive-load compensation equipment which is derived through a PI (Plant Information System), and reactive-load measurement section real-time data of transformer substations; on the basis of the CIM, optimally calculating the input and switching out status information of the reactive-load compensation equipment and the reactive-load measurement section real-time data through an optimized reactive voltage algorithm, and generating an optimized strategy, wherein the optimized reactive voltage algorithm comprises a primary dual interior point method, a branch-and-bound method and/or a voltage correcting control model method; and the AVC system controls optimization of the voltage according to the optimized strategy. The embodiment of the application further discloses an AVC system-based reactive voltage optimization device. Utilization efficiency of electrical energy can be improved through the embodiment of the application.

Description

technical field [0001] The present application relates to the field of electric power technology, in particular to a reactive voltage optimization method and a corresponding device. Background technique [0002] Voltage is an important indicator of power quality, and it has an important impact on the safe and economical operation of the power system and the service life of electrical equipment. The reactive power compensation and reactive power balance of the power system are the basic conditions to ensure the voltage quality. Effective control and reasonable reactive power compensation can not only ensure the voltage quality, but also improve the stability and safety of the power system operation and reduce power loss. . [0003] The reason why the power system needs reactive power compensation is that during the transmission of AC power, if it passes through a purely resistive load, the electric energy will be fully converted into heat energy. If it passes through a "pure...

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Problems solved by technology

After researching the existing power grid compensation amount, the inventor found that the existing reactive power and voltage optimization methods have the following problems: (1) In the initial stage of substation commissioning, the capacity of a single capacitor is too large, and it cannot be used when it needs to be put into operation, and After a certain number of years of operation, the capacity is too large during the valley period, and the capacity is insufficient during the peak period; (2) There is a lack of appropriate grouping in the operation of the power grid, and frequent switching is required to ensure voltage quality, which increases the operating burden and equipment loss; (3) Capacitor configuration The capacity is large, but the network transmission loss is still high

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