包含可控负荷的微电网经济调度  

Economic dispatch for microgrid with controllable loads

作　　者：童小娇[1,2] 尹昆[1] 刘亚娟[1] 周鹏[1] 

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410004 [2]湖南第一师范学院,湖南长沙410205

出　　处：《电力自动化设备》2015年第10期21-28,36,共9页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(71371065;11171095)~~

摘　　要：针对大规模风电并网给电力系统带来的影响,应用需求侧响应的能量管理策略,建立用户与微电网管理方的双层优化调度模型。上层根据用户侧可控负荷的特性和运行特征,将所有的可控负荷分成4类,目标函数为4类可控负荷总的用电成本最小;下层优化目标函数是在满足供电可靠性要求的条件下使总的供电成本最小。通过KKT条件将双层优化转化成一个单层优化问题对模型进行求解。某微电网的数值实验结果证明了所提模型与算法的有效性。Aiming at the influence of large-scale grid-connected wind power on the power system,the energy management strategy based on the demand-side response is applied to build a bi-level optimal dispatch model. In the upper / user level,the controllable load at user side is classified into four types according to its characteristics and operating performance and the minimum total electricity-purchase cost of four controllable load types is taken as the objective function. In the lower / management level,the minimum total power-supply cost in the condition of satisfied power-supply reliability is taken as the objective function. The KKT（Karush-Kuhn-Tucker） condition is adopted to transform the bi-level optimization model into a mono-level one. The effectiveness of the proposed model and algorithm is verified by the results of a numerical experiment for a microgrid.

关 键 词：可控负荷 优化 微电网 风电 经济调度 

分 类 号：TM732[电气工程—电力系统及自动化]