CAJ | 학술논문

　　针对含多种DER的中压微网系统，提出基于实时电价的微网PSO最优潮流算法。首先推导了包含可中断负荷且与大电网可双向潮流交换的微网经济成本方程及包含能量流失的蓄电池运行约束方程。考虑了目前备受关注的PM 10对健康的影响，综合经济、环境、健康成本及多种约束，以微网24小时运行费用最小为目标，建立了微网综合经济运行的优化模型。之后，提出基于牛顿-拉夫逊最优潮流算法的混沌PSO算法，结合某电力市场的实时电价和通过负荷预测获取的负荷曲线，在满足负荷需求的前提下，实现可中断负荷、蓄电池、DER与大电网功率的经济共享。最后，在Matlab环境下编程实现了该混沌PSO最优潮流算法。通过对某中压微网系统4种运行状态下的经济性分析，验证了该方法的正确性和有效性。
　　침대함다충DER적중압미망계통，제출기우실시전개적미망PSO최우조류산법。수선추도료포함가중단부하차여대전망가쌍향조류교환적미망경제성본방정급포함능량류실적축전지운행약속방정。고필료목전비수관주적PM 10대건강적영향，종합경제、배경、건강성본급다충약속，이미망24소시운행비용최소위목표，건립료미망종합경제운행적우화모형。지후，제출기우우돈-랍부손최우조류산법적혼돈PSO산법，결합모전력시장적실시전개화통과부하예측획취적부하곡선，재만족부하수구적전제하，실현가중단부하、축전지、DER여대전망공솔적경제공향。최후，재Matlab배경하편정실현료해혼돈PSO최우조류산법。통과대모중압미망계통4충운행상태하적경제성분석，험증료해방법적정학성화유효성。
Aiming at a MV microgrid containing multi DERs, a PSO optimal power flow algorithm based on spot power prices is detailed. Firstly, the economic cost formula, which takes interruptable loads and bi-directional current into account, is deduced. Meanwhile, the battary operation constraints considering energy loss are given. To minimize the 24-hour operation cost, a general economic dispatch model for microgrid is presented. The model considers generation cost, emission cost, health cost (the influence caused by PM 10 ) and various constraints. Secondly, a chaos PSO algorithm based on Newton-Raphson optimal power flow method is proposed. The 24-hour load curve after load forecast, together with spot power price in a power market, is adopted to realize economic power share among interruptable load, battary, DER and main power grid. Finally, the program of PSO optimal power flow algorithm is developed in Matlab environment. Through analyzing the economy of a MV microgrid under four conditions, the correctness and validity of the method is proven.