Testing method and system of generator power transmitter with consideration of synchronous phasor measurement

Abstract

The invention discloses a testing method and system of a generator power transmitter with consideration of synchronous phasor measurement. The method comprises: a synchronous phasor measurement unit (PMU) is set at one side of a generator, wherein the PMU is used for obtaining a dynamic characteristic signal of a power transmitter of the generator; a PMU signal receiving device is arranged and isused for receiving the dynamic characteristic signal, obtained by the PMU, of the a power transmitter of the generator and transmitting the signal to a real-time digital simulation system (RTDS); a generator simulation model is established in a simulation interface of the RTDS; control information of the generator is transmitted to the generator simulation model to simulate the actual operation state of the generator; and on the basis of the actual operation state result of the simulated generator, dynamic characteristics of the power transmitter are checked. The testing method and system havethe following beneficial effects: when a fault occurs at a power system, information of voltage fluctuation and system oscillation and the like is recorded, so that the stability margin of the systemis determined in advance.

Description

technical field [0001] The invention relates to the technical field of power transmitter testing, in particular to a generator power transmitter testing method and system considering synchronized phasor measurement. Background technique [0002] With the continuous development of my country's economy and society, the capacity of the entire interconnected system in the power industry continues to increase, and the power grid dispatching department urgently needs a monitoring method that reflects the dynamic behavior of the large power grid in real time. At this stage, large-scale generators generally use active power transmission The generator is used to measure the real power of the unit, and the measured power signal of the power transmitter is one of the important parameters for the control and protection of the governor. This puts forward higher requirements on the wave recording performance of the power transmitter, and the test before production is an important means to ...

AI Technical Summary

Problems solved by technology

At present, domestic manufacturers seldom consider verifying the performance of the device from the perspective of the power grid, resulting in insufficient comprehensive inspection of the transmitter

The performance of the power transmitter is tested by the relay protection tester, and it is impossible to fully investigate the impact of various faults on the grid side; carry out the digital (dynamic) simulation test of the power transmitter, simulate various operating modes in the actual power system, and assess The impact of grid side faults on the recording performance of power transmitters is very necessary

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