基于产消方式的互联微网协同自治运行策略  

Prosumer-based Autonomous-Synergetic Operation Strategy for Interconnected Microgrids

作　　者：沈俭荣 文云峰[1] 郭创新[1] 马士聪[2] 贺庆[2] 

机构地区：[1]浙江大学电气工程学院,浙江省杭州市310027 [2]中国电力科学研究院,北京市100192

出　　处：《电力系统自动化》2016年第9期40-47,共8页Automation of Electric Power Systems

基　　金：国家重点基础研究发展计划(973计划)资助项目(2013CB228206);浙江省自然科学基金资助项目(LZ14E070001);国家电网公司基础性前瞻性科技项目(XT71-14-003)~~

摘　　要：随着分布式电源在用户端的广泛接入,互联微网间的调度问题将呈现非合作特性,难以直接通过集中优化求解。鉴于此,文中结合电力市场双边交易机制,提出了一种基于产消方式的互联微网协同自治运行策略。该策略充分尊重市场运行的客观规律,通过挖掘电力供需本质以及主动能量管理为配电网的经济优化调度提供依据。针对该策略设计了一种双层优化算法:下层优化问题通过计算微网系统自治状态下的节点边际电价和需求曲线以寻求互联微网协同运行的平衡点;上层优化问题基于原—对偶内点法对微网出力及联络线功率进行优化。算例仿真结果验证了互联微网分散协同运行策略的正确性及其用于主动配电网实时优化调度的有效性。With the increasing penetration of distributed generators on the demand side,the dispatch problem among interconnected microgrids（MGs）is difficult to solve by directly optimizing its non-cooperative features.In view of this,this paper proposes a prosumer-based autonomous-synergetic operation strategy for interconnected MGs by integrating the bilateral trade mechanism of electricity market.With full respect for the objective law of market operation,this strategy can provide a reference for economical dispatch of distribution networks by mining the essence of power transaction and active energy management.A two-level optimization algorithm is designed to realize the strategy,in the lower level of which,the local marginal price and supply/demand curves of autonomous MGs are calculated to seek the equilibrium point of synergetic operation of interconnected MGs.In the upper-level,the primal-dual interior-point method is employed to optimize the injection power of MGs and tie-line power.Simulation results show the correctness of the strategy proposed and its effectiveness of application in the real-time optimization dispatch of an active distribution network.

关 键 词：微网(微电网) 产消方式 分散自治 协同 主动配电网 

分 类 号：TM732[电气工程—电力系统及自动化]