単相自励式電圧型交直変換装置における誤差追従式交流電流波形制御方式

概要

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AC current waveform controlled self commutated voltage source power converters have various advantages in order to connect a DC power source to electric power systems, e. g., they do not increase short circuit current of electric power systems, and harmonic current is easily controllable.In this paper, new design theory of AC current waveform control method for single phase self commutated voltage source power converters termed the current error tracking mode AC current waveform control method is proposed and its performance is theoretically evaluated.The first attractive feature of this design theory is that it can treat an arbitrary current waveform as a target of the objective function of AC current. The second is that the error between actual AC current value and the objective function value can be controlled to be less than an arbitrary value which is set up beforehand. The third is that all control components get digitized. This design theory can also be applied widely to common single phase self commutated voltage source power converters of AC current waveform control type with capacitors at the DC main circuits instead of a DC power source.
社団法人電気学会の論文