SVG device parallel operation control system and method based on optical fiber high-speed communication

Abstract

The invention discloses a static var generator (SVG) device parallel running control system and an SVG device parallel running control method based on optical fiber high speed communication. An interconnection parallel system comprises a plurality of SVG devices and corresponding communication boards, wherein each SVG device comprises a control module, a power module, a starting module and a connection reactance device; the optical fiber terminal of the control module is connected with the power module and transmits a control command and running state information; the power module, the starting module and the connection reactance device are connected with a power grid through cables sequentially; the control modules of the SVG devices are connected with the communication boards through data buses and transmit real-time output current and the running state information of the SVG devices; and the optical fiber transmitting ends and the receiving ends of the communication boards are connected with the optical fiber transmitting ends and the receiving ends of the communication boards of other SVG devices through optical fibers and transmit the real-time output current and the running state information of the SVG devices. By the system and the method, coordinated balance output of each SVG device can be realized and a common control aim can be fulfilled.

Description

technical field [0001] The invention relates to a device in the technical field of electric power transmission, in particular to an optical fiber high-speed communication-based SVG device parallel operation control system and method thereof. Background technique [0002] Static synchronous compensator (SVG device) is one of the main devices of Flexible AC Transmission System (FACTS), which represents a new development direction of reactive power compensation technology in power systems at the present stage. The dynamic reactive power compensation and active harmonic control device (hereinafter referred to as the device) can quickly and continuously provide capacitive and inductive reactive power, realize appropriate voltage and reactive power control, and ensure the stable, efficient and high-quality operation of the power system. In the distribution network, installing small and medium-capacity SVG devices near the substation or load can significantly improve the power qual...

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Problems solved by technology

[0006] In the prior art, there is no effective control method for the parallel operation of multiple SVG devices. The existing technology only uses the SVG device to automatically control the switching of parallel capacitors, but it cannot be used for the coordinated control of the parallel operation of multiple SVG devices, especially Realize reactive power output balance and coordinated operation when multiple SVG devices output

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