CAJ | 학술논문

分布式光伏余电上网政策性补贴给微网的优化运行带来了新的机遇与挑战。以微网运行的净收益最大化为目标，分析了光伏余电上网补贴对于微网出力决策的影响，建立了考虑光伏余电上网的微网系统综合决策调度模型。采用序列二次规划(SQP)算法进行求解，以实际微网系统为例，对比分析了含光伏的微网分别接入居民区、商业区、工业区等不同场景下的出力及经济效益的优劣，并评估了光伏容量及上网电价对收益和成本的影响。
분포식광복여전상망정책성보첩급미망적우화운행대래료신적궤우여도전。이미망운행적정수익최대화위목표，분석료광복여전상망보첩대우미망출력결책적영향，건립료고필광복여전상망적미망계통종합결책조도모형。채용서렬이차규화(SQP)산법진행구해，이실제미망계통위례，대비분석료함광복적미망분별접입거민구、상업구、공업구등불동장경하적출력급경제효익적우렬，병평고료광복용량급상망전개대수익화성본적영향。
Surplus distributed photovoltaic (PV) power sold to the grid with a new compensation price brings opportunities and challenges for optimal microgrid operation.This paper aims at maximizing the net operating earnings of a microgrid.Firstly, the impact of PV compensation price on the operation of microgrid is analyzed,and a decision-making scheduling model considering the subsidies of PV surplus power is established.Then the sequential quadratic programming (SQP) algorithm is utilized to solve the established model.Finally,some case studies are done based on the real data from an actual microgrid system,the differences of microgrid economic benefit with the gird accessed to residential,commercial and industrial areas are compared respectively.The sensitivity analysis is also performed to study the impact of PV capacity and on-grid price on the economic benefits of a microgrid.