计及用户舒适度的海上孤岛微电网运行策略

Operation strategy of offshore island microgrid taking account of user comfort

在高比例新能源的孤岛微电网中,风电的间歇性与波动性会增加微电网运行调度的不确定性,严重情况下可能对系统安全稳定运行造成影响。为此,提出一种计及用户舒适度需求侧管理的海上孤岛微电网运行策略。首先,针对微电网内不同类型负荷用户进行精细化建模以及差异化需求响应策略,提出不同类型用户的评判指标。其次,综合用户舒适度最优以及微电网日运行成本最小为目标建立日前调度框架,并利用yalmip+cplex求解器进行求解得到日前调度计划。最后,以某海上孤岛微电网为例,在不同风电场景下验证所提策略的有效性与普适性。

In the islanded microgrid with a high proportion of new energy,the intermittency and volatility of wind power will in-crease the uncertainty of the operation and dispatching of the mi-crogrid,which may affect the safety and stablility of the system op-eration in serious cases.Therefore,an operation strategy of offshore island microgrid considering demand side management of user comfort is proposed.Firstly,the fine modeling and differentiated demand response strategies are carried out for different types of load users in the microgrid,and the evaluation indexes of different types of users are proposed.Then,the day-ahead scheduling frame-work is established to optimize the user comfort and minimize the daily operation cost of the microgrid,and the day-ahead scheduling plan is obtained by using yalmip+cplex solver.Finally,an offshore island microgrid is taken as an example to verify the effectiveness and universality of the proposed strategy in different wind power scenarios.