文章摘要
廖小兵,刘开培,汪宁渤,等.含风电的交直流互联电网AGC两级分层模型预测控制[J].电力系统自动化,2018,42(8):45-50. DOI: 10.7500/AEPS20170908006.
LIAO Xiaobing,LIU Kaipei,WANG Ningbo, et al.Two-level Hierarchical Model Predictive Control for AGC of AC/DC Interconnected Power Grid with Integration of Wind Power[J].Automation of Electric Power Systems,2018,42(8):45-50. DOI: 10.7500/AEPS20170908006.
含风电的交直流互联电网AGC两级分层模型预测控制
Two-level Hierarchical Model Predictive Control for AGC of AC/DC Interconnected Power Grid with Integration of Wind Power
DOI:10.7500/AEPS20170908006
关键词: 风电  交直流互联电网  频率稳定  模型预测控制  两级分层策略
KeyWords: wind power  AC/DC interconnected power grid  frequency stability  model predictive control  two-level hierarchical scheme
上网日期:2018-03-14
基金项目:国家电网公司科技项目(SGGSKY00FJJS1700300)
作者单位E-mail
廖小兵 武汉大学电气工程学院, 湖北省武汉市 430072  
刘开培 武汉大学电气工程学院, 湖北省武汉市 430072  
汪宁渤 国网甘肃省电力公司风电技术中心, 甘肃省兰州市 730050  
马彦宏 国网甘肃省电力公司风电技术中心, 甘肃省兰州市 730050  
陈钊 国网甘肃省电力公司风电技术中心, 甘肃省兰州市 730050  
丁坤 国网甘肃省电力公司风电技术中心, 甘肃省兰州市 730050  
周强 国网甘肃省电力公司风电技术中心, 甘肃省兰州市 730050  
秦亮 武汉大学电气工程学院, 湖北省武汉市 430072 qinliang@whu.edu.cn 
摘要:
      随着大规模风电接入交直流互联电网,传统的自动发电控制(AGC)方法难以有效地抑制风功率波动带来的频率稳定问题。为此,提出基于两级分层模型预测的AGC策略。该两级分层控制方法在下层对多个区域电网采用分散式模型预测控制;在上层对下层分散的控制器采用动态协调控制方式。以含多电源的两区域交直流互联电网AGC模型为例,仿真结果表明:与集中式模型预测控制和分散式模型预测控制方法相比,文中所提控制策略不仅对频率和联络线功率等具有良好的控制效果,还兼具高可靠性。
Abstract:
      With the integration of large-scale wind power into AC/DC interconnected power grid, the traditional automatic generation control(AGC)strategies are difficult to effectively suppress the frequency stability caused by the fluctuation of wind power. Therefore, a new AGC strategy based on two-level hierarchical model predictive control is proposed. The two-level hierarchical control scheme adopts decentralized model predictive controllers for multiple regional power grids in the lower layer, and the centralized controller in the upper layer adopts dynamic coordination mechanism for the decentralized controllers. Taking the AGC model of two-area AC/DC interconnected power grid with multi-source power generation as an example, the simulation results show that, compared with the centralized model predictive control method and decentralized model predictive control method, the proposed control strategy has not only good control effect on the system frequency and tie-lines power, but also high reliability.
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