Excitation loss protection admittance characteristic setting method for nuclear power plant generator
A loss-of-excitation protection and generator technology, applied in nuclear power plants, nuclear power generation, nuclear power plant control, etc., can solve the problems of nuclear power units and systems instability, large errors, and inaccurate calculation results
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[0095] The method for setting the admittance characteristics of the generator demagnetization protection of the nuclear power plant involved in this embodiment is characterized in that: the admittance characteristics and the low voltage of the static stability limit are solved by using the power equations of the turbogenerator to obtain the turbogenerator The specific steps for setting the value of the loss-of-excitation protection action are as follows:
[0096] 1) Solve the end measurement admittance Y of the turbogenerator G
[0097] First determine the generator end measurement impedance Z G , taking the infinite system bus as a reference, determine the machine-end measurement impedance Z of the generator G The expression is:
[0098] Z G = 1 Y s . l i n + ...
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