CAJ | 학술논문

针对微电网中存在的电能质量问题，提出了基于变约束预测理论的UPQC控制方法。该方法通过在线优化方法构建当前反馈矩阵的凸组合系数，获得当前控制量，由不同稳定椭圆域确定其对应的控制约束，有效地增加了在线求解的自由度，减少了运算时间。仿真结果表明，该方法能够补偿谐波畸变和抑制电压波动，有效地改善电能质量。
침대미전망중존재적전능질량문제，제출료기우변약속예측이론적UPQC공제방법。해방법통과재선우화방법구건당전반궤구진적철조합계수，획득당전공제량，유불동은정타원역학정기대응적공제약속，유효지증가료재선구해적자유도，감소료운산시간。방진결과표명，해방법능구보상해파기변화억제전압파동，유효지개선전능질량。
According to the power quality problems in micorgrid, proposes a UPQC control method based on variable constraint predictive theory. It constructs the convex combination coefficients for the state feedback matrix through on-line optimization, obtains the current control and determines the corresponding control constraints according to the elliptical stability domain, which increases the freedom of online solving and reduces computing time. Simulation results show that the method compensates the harmonic distortions, restrains voltage fluctuation and imoroves tower aualitv effectively.