CAJ | 학술논문

根据分布式电源并网的控制特性，将分布式电源设计为电压控制型和无功补偿型，考虑其与地区电网的电压无功控制手段相结合，参与地区电网动态无功优化调度。建立以降低地区电网网损、抑制电压波动为综合目标的地区电网模糊动态无功优化调度模型。在该模型中，通过构造模糊评价函数，将目标函数转化为对优化结果的满意度，并利用自适应权重法将综合目标进行归一化处理。最后采用改进遗传算法有效求解含分布式电源的地区电网动态无功优化调度策略。算例表明，提出的模型和方法是合理的，具有一定参考价值。
근거분포식전원병망적공제특성，장분포식전원설계위전압공제형화무공보상형，고필기여지구전망적전압무공공제수단상결합，삼여지구전망동태무공우화조도。건립이강저지구전망망손、억제전압파동위종합목표적지구전망모호동태무공우화조도모형。재해모형중，통과구조모호평개함수，장목표함수전화위대우화결과적만의도，병이용자괄응권중법장종합목표진행귀일화처리。최후채용개진유전산법유효구해함분포식전원적지구전망동태무공우화조도책략。산례표명，제출적모형화방법시합리적，구유일정삼고개치。
Based on the control characters of distributed generators (DG) integrated into a local power system, DG is divided into voltage-controlled type and reactive-compensated type. DG participates in reactive power optimization control. A dispatch model for fuzzy dynamic reactive power optimization control of a local power system is presented with a compositive objective of reducing the network loss and restricting node voltage variations of a local system. In this model, a fuzzy evaluation function is established to transfer the objective function into the satisfaction degree on optimization results. A method based on self-adaptive weight is proposed to normalize the compositive objective. Improved genetic algorithm (IGA) is used to solve dynamic reactive power optimization dispatch in a local power system with distributed generators. The numerical example analysis shows the rationality of the model as well as its reference value.