Research and Software Development of a Predictive Model for the Maximum Phase Depth of a Hydroelectric Generator Limited by Demagnetization Protection
There are various limiting factors for the operation of the generator in the leading phase,and the limiting criterion for the leading phase depth is a comprehensive criterion composed of multiple factors.It is difficult for operators to grasp,and they can only exit the demagnetization protection pressure plate.As a normal operating condition,it is obviously unreasonable to directly remove the protection of the unit when the generator is in phase operation.Starting from the principle of coordinate transformation,this article introduces a PC based method for verifying the coordination between generator phase advance experiment and demagnetization protection.It can automatically calculate the maximum phase advance depth under given conditions,and analyze the correctness of the coordination between low excitation limit and demagnetization protection to prevent the generator unit from stopping due to excessive phase advance operation without the need to exit demagnetization protection.
phase advancement experimentloss of excitation protectionlow excitation limitcoordinate transformationprogram development
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