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电力负荷需求侧响应能力评估建模研究

2021-02-28朱仔新张静忠杨龙

现代信息科技 2021年16期

朱仔新 张静忠 杨龙

摘  要:在全社会用电需求持续增长的状态下,高峰负荷与峰谷差值对电网的安全运行造成了不利影响,为了保证电网安全性,研究电力负荷需求侧响应能力评估建模方法。在划分电力负荷需求侧响应阶段的基础上,设定不同负荷状态下响应能力评估指标,并采用时序分解法构建评估模型,完成电力负荷需求侧响应能力评估建模方法设计。在实时电价和分时电价机制下,评估电动汽车参与需求侧响应后,对电力负荷影响效果,实验结果表明,文章模型能够在其充放电过程中完成高峰负荷划分,多轮测试结果均与实际峰值负荷一致,具有较好的实际应用效果。

关键词:电力负荷;需求侧响应;响应能力评估模型;用电需求

中图分类号:TP391               文献标识码:A文章编号:2096-4706(2021)16-0142-03

Research on Modeling of Power Load Demand Side Response Capability Evaluation

ZHU Zixin, ZHANG Jingzhong, YANG long

(State Grid Ningxia Dispatching and Control center, Yinchuan  750001, China)

Abstract: With the continuous growth of power demand in the whole society, the peak load and peak valley difference have an adverse impact on the safe operation of the power grid. In order to ensure the security of the power grid, the modeling method of power load demand side response capability evaluation is studied. Based on the division of power load demand side response stage, the response capability evaluation indexes under different load states are set, and the evaluation model is constructed by time series decomposition method to complete the design of power load demand side response capability evaluation modeling method. Under the mechanism of real-time electricity price and time of use electricity price, the effect of electric vehicle participating in demand side response on power load is evaluated. The experimental results show that the model in this paper can complete the peak load division in it’s charge and discharge process, and the multi round test results are consistent with the actual peak load, which has a good practical application effect.

Keywords: power load; demand side response; response capability evaluation model; power demand

0  引  言

在多年的改革和發展中电力市场已经形成了较为成熟的经营模式,但电力市场和其他市场中的商品相比仍存在一定差距,表现在电力市场需求侧调动不够充分,并没有完全利用好需求侧资源,使得电力市场出现电力调度灵活性低与效率低等多种问题。随着电网规模的逐步扩大,主网最大用电负荷和负荷峰谷差不断增加,且高峰负荷持续时间不断增加,对电网发电、用电、外送电平衡以及输电断面控制带来极大挑战。需求侧管理作为一项长久且能够持续发展的战略工程,可以较大程度上缓解电力供应的紧张局面,以此进一步促进社会经济的快速发展,因此在各地政府推进用电终端节能技术研发和改革中,提出多个针对自身区域内电力消费特点的需求侧管理方案,以期为推进我国电力用户端的市场化进程奠定坚实的基础。……

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