考虑跨区多能源协调的交直流输电系统稳定性控制模型  

Stability control model of AC/DC transmission system considering inter-area multi-energy coordination

作　　者：康赫然 党伟 刘宏扬 张昭 赵树野 顾大可[2] 孙鹏[3] Kang Heran;Dang Wei;Liu Hongyang;Zhang Zhao;Zhao Shuye;Gu Dake;Sun Peng(State Grid East Inner Mongolia Economic Research Institute,Huhhot 010020,China;Northeast Electric Power University,Jilin 132012,China;Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]国网内蒙古东部电力有限公司经济技术研究院,内蒙古呼和浩特010020 [2]东北电力大学,吉林吉林132012 [3]沈阳工业大学,辽宁沈阳110870

出　　处：《可再生能源》2021年第1期111-116,共6页Renewable Energy Resources

基　　金：国家电网公司科技项目(52660118005F)。

摘　　要：我国已建成世界上规模最大、电压等级最高的交直流混联电网,如何有效保障交直流混联系统安稳运行是重大而紧迫的国家需求。文章针对含大规模风电的交直流混联系统稳定性问题,将动态逆方法作为鲁棒控制的内环,将储电、储热装置作为多能源进行协调,对模型不确定性进行外环鲁棒控制补偿。在H∞控制基础上进行了含风电的交直流混联弱送端系统μ综合的分析与设计,建立了考虑跨区多能源协调的交直流输电系统稳定性控制模型。仿真结果表明,文章所提模型保证了动态逆方法的鲁棒性,提高了交直流输电系统的控制性能。China has built the world's largest AC-DC hybrid grid with the highest voltage level.How to effectively ensure the stable operation of the AC-DC hybrid system is a major and urgent national demand.In view of the stability problem of AC-DC hybrid system with large-scale wind power,an AC-DC transmission system stability control model that considers cross-region multi-energy coordination is established in this paper.Aiming at the uncertainty of large-scale wind power,the dynamic inverse method is used as the inner loop of robust control,and the power storage and heat storage devices are used as multiple energy sources to coordinate,and the outer loop robust control compensation is performed for model uncertainty.Based on the H∞control,the comprehensive analysis and design of the AC-DC hybrid weak-transmitting-end system with wind power are analyzed and designed,and the stability control model of the AC-DC power transmission system with cross-region and multi-energy coordination is established.Simulation results show that the model proposed in this paper ensures the robustness of the dynamic inverse method and improves the control performance of AC-DC transmission systems.

关 键 词：交直流输电系统 不确定性 多能源协调 鲁棒控制 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程] TM73[电气工程—电力系统及自动化]