Control method of low-speed stage starting of static frequency conversion starting of pumped storage power station
A pumped-storage power station, static frequency conversion technology, applied in the direction of motor generator/starter, starter of a single multi-phase induction motor, etc., can solve the problems of weak change, weak terminal voltage, difficult corner position signal, etc. , to achieve the effect of good linearity, simple debugging and large adjustable range of parameters
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[0033] The present invention will be described in further detail below with reference to the accompanying drawings and examples. However, the invention is not limited to the examples given.
[0034] The start-up control method without position sensor in the low-speed stage of static frequency conversion start-up of the pumped storage power station proposed by the present invention is applied to the low-speed stage in the frequency conversion start-up process of the pumped-storage unit, and specifically includes the following steps (see the flow chart figure 1 ):
[0035] The start-up control method in the low-speed stage of static variable-frequency start-up of a pumped-storage power station includes the following steps:
[0036] 1) Calculate the rotor initial position angle θ;
[0037] There are many methods for calculating the initial position angle of the rotor in the static state. The method used in this example is as follows: When the pumped storage unit is in a static ...
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