CAJ | 학술논문

针对目前含分布式电源(distributed generation，DG)的配电网中未考虑电容器补偿容量和 DG 无功出力协调调度的问题，研究了考虑 DG 与电容器组协调的无功优化方法。以网损和电压偏移满意度最高为目标，构建含DG的配电网日前动态无功优化调度模型。根据DG无功出力和电容器补偿的特点，提出 DG 和电容器协调的日前无功计划方法。分析了各类DG的无功出力极限并作为约束条件，对电容器和DG进行整体静态优化得到电容器的投切容量曲线；其次采用模糊聚类对电容器投切曲线进行时序分段并融合，制定电容器的日前计划；最后，在电容器补偿容量确定后，以DG作为优化变量，制定DG出力的日前计划。仿真结果验证了所提方法的有效性。
침대목전함분포식전원(distributed generation，DG)적배전망중미고필전용기보상용량화 DG 무공출력협조조도적문제，연구료고필 DG 여전용기조협조적무공우화방법。이망손화전압편이만의도최고위목표，구건함DG적배전망일전동태무공우화조도모형。근거DG무공출력화전용기보상적특점，제출 DG 화전용기협조적일전무공계화방법。분석료각류DG적무공출력겁한병작위약속조건，대전용기화DG진행정체정태우화득도전용기적투절용량곡선；기차채용모호취류대전용기투절곡선진행시서분단병융합，제정전용기적일전계화；최후，재전용기보상용량학정후，이DG작위우화변량，제정DG출력적일전계화。방진결과험증료소제방법적유효성。
In allusion to the situation that in present distribution networks containing distributed generation (DG) the coordinated dispatching of the compensating capacity of capacitors with reactive output of DG is not taken into account, a reactive power optimization method considering the coordination of capacitor banks with DG is researched. Taking the highest satisfaction degree of both network loss and voltage deviation as the objective, an optimal day-ahead dynamic reactive power scheduling model for distribution network containing DG is constructed. Based on the reactive power output of DG and the features of capacitor compensation, a day-ahead reactive power scheduling that coordinates the DG with capacitor banks is proposed. Firstly, the limits of various DG’s reactive power output are analyzed and taken as constraints, the overall static state optimization of DG and capacitor banks is performed to attain the switching on/off capacity curve of capacitor banks; then fuzzy clustering is adapted to segment the capacity curve and subsection integration is used to formulate the day ahead schedule of capacitors;finally, after the determination of the compensating capacity of capacitor banks, the day-ahead scheduling of DG is drafted. Simulation results show that the proposed method is effective.