Test circuit and method for low-voltage physical model of unified power flow controller

Abstract

The invention relates to a test circuit and method for a low-voltage physical model of a unified power flow controller. The circuit comprises a test power circuit, a regulating transformer, a first bus, a third bus and a second bus, wherein the test power circuit, the regulating transformer, the first bus, the third bus and the second bus are sequentially connected. A phase-shifting device is arranged between the first bus and the second bus, and a bypass switch and a voltage disturbance generating device which are connected in parallel are arranged between the first bus and the third bus. A parallel transformer, a low-voltage physical model device of the unified power flow controller, a series transformer and an electric reactor are sequentially arranged between the third bus and the second bus, wherein the auxiliary side of the series transformer is connected with the third bus. According to the method, a steady state control policy, a transient state control policy and a dynamic control policy of the UPFC are verified by simulating various normal and fault working conditions of an electric power system. According to the technical scheme, the test method is simple and reliable, the various normal and fault working conditions of the electric power system cane be constructed, and the test verification requirements of the control policies of the UPFC are met.

Description

Technical field: [0001] The invention relates to a test circuit and a test method of a low-voltage physical model, and more particularly relates to a test circuit and a test method of a low-voltage physical model of a unified power flow controller. Background technique: [0002] At present, most of the simulation technology is used to establish the model of the control system to verify the feasibility and correctness of the designed control strategy. Although it can provide a certain reference for the development of the control system, it cannot test the controller and cannot reflect the actual situation of the system. Working conditions, lack of experimental basis. In addition, there are also real-time digital simulation technology to establish a system model to verify the designed controller and control strategy. For example, the real-time digital simulator RTDS (RealTimeDigitalSimulator) developed by Canada, HYPERSIM developed by Canadian TEQSM company, and ARENE develop...

AI Technical Summary

Problems solved by technology

This method can provide a certain reference and guidance for the development of the control system, but it cannot reflect the actual working conditions of the system and lacks certain experimental basis

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