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The control methods and operation characteristics of D-STATCOM under unbalanced grid voltage are studied in this paper. Through methods of switching function and sequence network, the effects on voltage output of D-STATCOM caused by grid voltage unbalance and its over current are analyzed. The performance of voltage output of D-STATCOM is improved with modified modulation method of switching function...
To improve the voltage quality of the power supply is an important function of the D-STATCOM. A novel voltage control strategy based on active-disturbance rejection control under unbalance voltage conditions is proposed in this paper. The active-disturbance rejection control for D-STATCOM is proposed to overcome the difficulty result from the nonlinear, multivariable and coupling characteristics of...
Distribution static synchronous compensator can bu used to improve the voltage quaLity through exchanging the reactive power between the D-STATCOM and the power system. Keep the voltage of the point of common coulpLing constant and balance is a very important power quaLity issues. The voltage controll strategy which has the function of voltage compensation and balance of the D-STATCOM is investigated...
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