Electric power generating system and control method thereof
A technology of power generation system and control method, which is applied in the direction of control system, control generator, electrical components, etc., can solve the problem that the power generation system is difficult to maintain constant frequency output, and achieve the effect of reducing maintenance costs and time
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[0077]The difference between embodiment three and embodiment one, embodiment four and embodiment two is that a third frequency conversion device 8 is set between the stator winding of the first motor and the grid 5, so that the three-phase output from the stator winding end of the first motor 1 The frequency of the alternating current may not be equal to the frequency of the power grid, and the frequency is converted by the third frequency conversion device 8 before being input into the power grid.
[0078] The reason why the third frequency conversion device 8 is added is that when the stator winding of the first motor 1 outputs three-phase alternating current at the grid frequency (for example, 50 Hz is used in my country), if the number of poles of the first motor 1 is small, the rotor of the first motor 1 needs the original The motor 6 provides a relatively high speed, but in hydroelectric power generation and wind power generation, the prime mover 6 cannot provide a high sp...
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