CAJ | 학술논문

将电力市场环境下微电网备用分为外部与内部2类备用，前者为大电网事故支持备用，后者包括不可再生分布式发电备用（non—renewable distributed generation reserve，NDGR）、储能装置、低电价与高赔偿2种可中断负荷。在对大电网备用优化配置技术应用于微电网的可行性进行深入分析的基础上，为提高微电网NDGR配置的经济性，针对微电网各类备用的经济互补特性，运用协调优化理念，从风险管理角度建立优化NDGR配置的数学模型，提出基于代价对参数的灵敏度来指导优化方向的寻优算法，针对容量事故集对NDGR的最优配置进行风险决策，量化分析微电网运行模式、储能以及NDGR价格对NDGR配置的影响。仿真结果表明，NDGR配置过高或过低都不合适，而应存在最优值。
장전력시장배경하미전망비용분위외부여내부2류비용，전자위대전망사고지지비용，후자포괄불가재생분포식발전비용（non—renewable distributed generation reserve，NDGR）、저능장치、저전개여고배상2충가중단부하。재대대전망비용우화배치기술응용우미전망적가행성진행심입분석적기출상，위제고미전망NDGR배치적경제성，침대미전망각류비용적경제호보특성，운용협조우화이념，종풍험관리각도건립우화NDGR배치적수학모형，제출기우대개대삼수적령민도래지도우화방향적심우산법，침대용량사고집대NDGR적최우배치진행풍험결책，양화분석미전망운행모식、저능이급NDGR개격대NDGR배치적영향。방진결과표명，NDGR배치과고혹과저도불합괄，이응존재최우치。
The reserve of microgrid in market environment is divided into two kinds, namely the internal reserve and the external reserve, the former offer support during the faults occurred in large-scale power grid and the latter contains non-renewable distributed generation reserve （NDGR）, energy storage devices and two sorts of interruptible loads, i.e., the low price load and high indemnity load. In order to improve the economy of NDGR configuration for microgrid, based on detailed analysis on the feasibility of applying optimal reserve configuration technology for large-scale power grid to microgrid and in the viewpoint of risk management as well as according to economic complementarity properties of various reserves in microgrid and utilizing the idea of coordinative optimization, a mathematical model for optimal configuration of NDGR is established. An optimization algorithm, whose optimal direction is guided by the sensitivity of cost to parameters, is proposed and in allusion to capacity faults the risk decision-making for optimal configuration of NDGR is performed while the operation modes of microgrid, energy storage and the influence of cost of NDGR on its configuration are quantitatively analyzed. Simulation results show that the exorbitant or insufficient capacity of NDGR configuration is not appropriate and it is sure that there is an optimal configuration of NDGR capacity.