Angle-type STATCOM based on feedforward control of power grid voltage and control method of angle-type STATCOM
A grid voltage, feedforward control technology, applied in flexible AC transmission systems, reactive power adjustment/elimination/compensation and other directions, can solve problems such as poor current control performance of STATCOM, and achieve improved current control performance and control system delay. Small, small inrush current effect
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[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and examples, but the embodiments of the present invention are not limited thereto.
[0039] Embodiment of the angle-type STATCOM control method based on grid voltage feed-forward control of the present invention:
[0040] Below, the present invention will be described in detail by taking the step-down angle type chain STATCOM as an example, as figure 1 As shown, the structure diagram of the main loop of the step-down angle chain STATCOM is as follows figure 1 As shown, it is mainly composed of step-down transformer, in-corner connected reactance and commutation chain. Angle-type chain STATCOM generally adopts a phase-splitting control strategy to independently control the three phases.
[0041] For the AB phase, a single-phase phase-locked loop is used to phase-lo...
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