多时间尺度协调的柔性负荷互动响应调度模型与策略

发布时间：2018-12-31 13:17

【摘要】：负荷侧资源参与电网有功调度在提高风电接纳能力方面存在着巨大潜力,但也会给调度运行带来复杂的控制问题。为解决这一问题,基于风电在不同时间尺度误差的不同以及电网对应调节能力的差异,提出"多级协调、逐级细化"的多时间尺度协调的柔性负荷响应调度模型与策略。首先,提出多时间尺度源荷调度总体框架,将负荷调度的整个过程分为4个时间尺度,包括日前24 h、日内1 h、日内15 min和实时负荷调度;其次,建立风电功率预测不确定性模型、负荷代理决策模型和调度控制中心决策模型;然后,在这几个核心模型的基础上,提出多时间尺度源荷协调调度策略,给出计及风电不确定性的负荷调整量的决策计算方法;最后,在某地区实际电网算例上进行仿真验证。结果表明,本文所设计的负荷调度模型和策略可以充分利用不同时间尺度上的负荷资源,有效平衡风电预测功率不确定性所引起的功率不平衡量,并减少系统备用容量。
[Abstract]:There is great potential for load side resources to participate in active power dispatching in order to improve the acceptance capacity of wind power, but it will also bring complex control problems to the dispatching operation. In order to solve this problem, a flexible load response scheduling model and strategy of multi-time scale coordination is proposed based on the difference of wind power's error in different time scales and the difference of power grid's corresponding adjustment ability. Firstly, the overall framework of multi-time scale source load scheduling is proposed. The whole process of load scheduling is divided into four time scales, including 24 hours before day, 1 hour in day, 15 min in day and real-time load scheduling. Secondly, the uncertainty model of wind power prediction, the decision model of load agent and the decision model of dispatching control center are established. Then, on the basis of these core models, the coordinated scheduling strategy of multi-time scale sources is proposed, and the decision calculation method of load adjustment considering the uncertainty of wind power is given. Finally, the simulation is carried out on an actual power grid in a certain area. The results show that the load scheduling model and strategy designed in this paper can make full use of load resources in different time scales, effectively balance the power imbalance caused by the uncertainty of wind power prediction power, and reduce the reserve capacity of the system.
【作者单位】：华中科技大学电气与电子工程学院;中国电力科学研究院;
【基金】：国家重点基础研究发展计划项目(973项目)(2013CB228206) 北京市自然科学基金资助项目(3132035) 国家电网公司科技项目“源网荷”互动环境下多时空尺度需求响应调度框架及关键技术研究国家电网公司科技项目“源网荷”互动环境下电网稳态分析方法研究~~
【分类号】：TM73

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