Amplitude-phase control method for power grid dominant voltage source converter
A voltage source converter, amplitude-phase control technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as difficulty in suppressing converter power oscillations
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[0071] The present invention will be further described below in conjunction with the accompanying drawings, specific implementation methods and examples.
[0072] Such as figure 2 As shown, the present invention changes the instantaneous output electromagnetic power of the converter by controlling the terminal voltage phase of the grid-dominated converter, thereby suppressing system power oscillation. First, based on the dynamic differential equations of traditional synchronous generators and grid-dominated converters and the algebraic equations of the microgrid, the dynamic equation of the micro-increase rate of the whole system is established; based on the dynamic equation of the micro-increase rate, the Lyapunov stability of the whole system is evaluated , and design the additional controller of the grid-dominated converter; finally, by collecting the angular frequency of the traditional synchronous generator and the grid-dominated converter, the instantaneous output elect...
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