• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2021, Vol. 42 ›› Issue (9): 65-73.doi: 10.12204/j.issn.1000-7229.2021.09.007

• 高比例新能源交直流电网特性分析与运行控制·栏目主持 辛业春教授、姜涛教授、吴学光教授、宋晓 博士· • 上一篇    下一篇

基于改进模型预测控制的电-气系统新能源功率波动平滑策略

余洋1,2, 贾浩2, 陈启维2, 范亚洲2, 米增强1,2, 袁玉宝3, 常生强3   

  1. 1.新能源电力系统国家重点实验室(华北电力大学(保定)),河北省保定市 071003
    2.河北省分布式储能与微网重点实验室(华北电力大学(保定)),河北省保定市 071003
    3.石家庄科林电气股份有限公司,石家庄市 050222
  • 收稿日期:2020-12-31 出版日期:2021-09-01 发布日期:2021-09-02
  • 通讯作者: 余洋
  • 作者简介:贾浩(1996),男,硕士研究生,主要研究方向为柔性负荷建模与调度等|陈启维(1997),男,硕士研究生,主要研究方向为电力储能技术等|范亚洲(1993),男,硕士研究生,主要研究方向为柔性负荷建模与调度等|米增强(1960),男,教授,博士生导师,主要研究方向为新能源电力系统并网与控制|袁玉宝(1984),男,学士,高级工程师,主要研究方向为电力系统及其自动化|常生强(1978),男,学士,高级工程师,主要研究方向为电力系统及其自动化。
  • 基金资助:
    国家重点研发计划资助(2018YFE0122200);中央高校基本科研业务费专项资金资助(2020MS090);河北省智能电网配用电技术创新中心开放课题(20200803)

Fluctuation Smoothing Strategy of New Energy Power for Electricity-Gas Interconnected System Based on Improved Model Predictive Control

YU Yang1,2, JIA Hao2, CHEN Qiwei2, FAN Yazhou2, MI Zengqiang1,2, YUAN Yubao3, CHANG Shengqiang3   

  1. 1. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), Baoding 071003, Hebei Province, China
    2. Key Laboratory of Distributed Energy Storage and Microgrid of Hebei Province(North China Electric Power University), Baoding 071003, Hebei Province, China
    3. KE Electric Co., Ltd., Shijiangzhuang 050222, China
  • Received:2020-12-31 Online:2021-09-01 Published:2021-09-02
  • Contact: YU Yang
  • Supported by:
    National Key Research and Development Program of China(2018YFE0122200)

摘要:

针对新能源功率波动问题,制定了聚合温控负荷与微型燃气轮机共同抑制电-气互联系统联络线功率波动的调控策略。首先,将波动功率进行经验模态分解,然后在建立聚合温控负荷双线性模型与微型燃气轮机数学模型的基础上,提出了基于Lyapunov函数的改进模型预测控制方法,采用改进模型预测控制分别设计了聚合温控负荷与微型燃气轮机的控制律,用于平抑波动功率的高频分量与低频分量。算例仿真表明:在满足聚合温控负荷温度舒适度约束,保持微型燃气轮机预设工作状态的条件下,提出的控制方法能够使它们的输出功率有效跟踪波动功率高频和低频分量;算法兼顾了用户舒适度与调节范围,达到了良好的联络线功率平滑效果。

关键词: 新能源功率波动, 聚合温控负荷(ATCL), 微型燃气轮机, 电-气互联系统, 改进模型预测控制

Abstract:

Aiming at the problem of power fluctuations of new energy sources, a regulation strategy is developed in this paper to suppress the power fluctuations of the tie-line power in an electricity-gas interconnected system with aggregated thermostatically controlled loads (ATCLs) and a micro-turbine. Firstly, the fluctuating power is decomposed by empirical mode decomposition, and then on the basis of the establishment of the ATCLs bilinear model and the mathematical model of the micro-turbine, an improved model predictive control method based on the Lyapunov function is proposed. The control law of the ATCLs and the micro-turbine is designed. The ATCLs and the micro-turbine are aggregated to suppress the high frequency and low frequency components of fluctuating power. The simulation results indicate that the proposed control method can make their output power effectively track the high frequency and low frequency components of fluctuating power under the condition that the temperature comfort constraint of the ATCLs is satisfied and the preset working state of the micro-turbine is maintained. It achieves a good smoothing effect of tie-line power under the condition that user comfort and adjustment range are considered.

Key words: power fluctuation of new energy, aggregated thermostatically controlled load (ATCL), micro-turbine, electricity-gas interconnection system, improved model predictive control

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