基于弹性限负荷及非线性定价的柔性负荷控制策略研究

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中图分类号：TM73 文献标志码：A 文章编号：1008-0562（2025）04-0488-07

Study on flexible load control strategy based on elastic load limit and nonlinear pricing

LYUYanzhe，HENGJunliang，GAO Hongtao，WANGXiangyu （Tieling Power Supply Company，State Grid Liaoning Electric Power Company Limited， Tieling ， China）

Abstract：To address issues such as poor responseto concentrated demand from flexible loads during low-price periods，a flexible load limit algorithm is adopted to achieve hybrid control offlexible loads.Acontrol method using nonlinear price parameters to adjust the higher-order terms of the load demand curve is proposed. By penalizing load flexibility，thesmoothness of the loaddemand curve is improved，suppresing peak demand for electric heating during low-price periodsand reducing control deviations in load response.Aload response control experiment was conducted on electric heating for1 O32 households in a community in Northeast China to verify the effectiveness of the method.The research results show that the flexible load control method can effectively suppress peak load demand during low-price periods.Compared with traditional methods using hard and linear parameters forload control，the flexible load controlmethod can improvethe smoothnessof the load demand curve by 56.3 percentage points and reduce the control deviation in load response by 16.8 percentage points.The elastic load limit interval widens as load demand increases，and during price demarcation periods，it narrows sharply to ensure the speed of load response.The research findings provide areference for improving the stability of power supply.

Keywords： flexible load; electric heating; nonlinear pricing; elastic load limit;artificial immunity;BP neural network

0引言

价格法通过分时段电价实现移峰填谷[1-2]，是当前使用较广泛的柔性负荷控制方法。（剩余11020字）