Chain type STATCOM control system based on EtherCA technology

Abstract

The invention provides a chain type STATCOM (Static Synchronous Compensator) control system based on EtherCA technology, wherein the chain type STATCOM control system uses real-time industrial Ethernet EtherCA as a channel of data transferring, and the control system uses a layered distribution topology structure. The layered distribution topology structure of the STATCOM control system comprises a main control layer, a phase control layer and a unit control layer. The main control layer comprises a main control case and the like functional cases, the phase control layer is composed of a phase coupler case, and the unit control unit is composed of a unit controller. The communication between the main case and the phase coupler case is carried out by means of firewire connected EtherCA. The chain type STATCOM control system based on EtherCA technology provided by the invention has the advantages that the data transferring speed is high, the number of the cable is less, the exchange speed is fast, the expansion is convenient, the accurate synchronism and the diagnosis ability are strong and the configuration is flexible.

Description

A chained STATCOM control system based on EtherCAT technology technical field The invention belongs to the technical field of power systems, and in particular relates to a chained STATCOM control system based on EtherCAT technology. Background technique With the rapid development of the power industry, the use of power electronics technology to adjust and control the main parameters of the power system to improve the controllability, effectiveness and reliability of the power system is the "AC flexible transmission system", that is, the flexible AC transmission system. (FlexibleACTransmissionSystems, FACTS) technology has been widely concerned, researched and applied. Static Synchronous Compensator (STATCOM) based on voltage source inverter is a brand-new FACTS technology based on fully controlled devices. Compared with the traditional thyristor-controlled static var compensation device SVC, it has the following advantages. STATCOM The adjustment speed is faster and the ...

AI Technical Summary

Problems solved by technology

At present, the control structure of DSP+FPGA (Field Programmable Gate Array) is generally used to realize the input and output of multi-channel signals, but when the number of power units is large, there are many connecting cables between the control system and the power part of the converter, and the cost increased, decreased reliability

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