摘要
针对智能算法的计算量大、没有考虑发电机旋转备用等问题,提出基于灵敏度系数和模型预测控制(MPC)的电压优化控制策略,可以对大负荷节点和枢纽节点进行电压优化,提高系统电压稳定性。建立了系统无功电压的预测模型,研究了旋转备用容量对系统静态电压和暂态电压稳定性的影响。提出的策略可以有效提高系统故障后暂态电压的稳定性,故障切除后暂态电压可以快速有效地恢复,提升了系统的暂态稳定性,该策略在基于MATLAB的IEEE14节点系统中得到验证。
The voltage optimization control strategy based on the sensitivity coefficient and model predictive control(MPC)is proposed to solve such as large amount of calculation and no consideration of generator spinning reserve capacity in intelligent algorithm,which can optimize the voltage of the bus with large load and the hub bus,and improve the system voltage stability.A predictive model between the reactive power and voltage of the system is established,and the influence of the spinning reserve capacity on the stability of static voltage and transient voltage with the system is studied.The strategy can effectively improve the stability of the transient voltage after a system failure,and the transient voltage can be restored quickly and effectively after the fault is removed,which improves the transient stability of the system.The strategy has been verified in the IEEE 14-bus system based on MATLAB.
作者
邓建新
崔挺
王玎
沈非凡
DENG Jianxin;CUI Ting;WANG Ding;SHEN Feifan(Hunan University,Changsha 410012,China;State Grid Hunan Electric Power Company Limited Research Institute,Changsha 410007,China)
出处
《湖南电力》
2021年第1期25-30,共6页
Hunan Electric Power
基金
国网湖南省电力有限公司重点科技项目(5216A5200003)
国家自然科学基金面上项目(52077065)。
关键词
灵敏度系数
模型预测控制
暂态电压控制
无功功率
旋转备用
sensitivity coefficients
model predictive control
transient voltage control
reactive power
spinning reserve capacity
作者简介
邓建新(1995),男,江西鹰潭人,硕士,研究方向为风电场建模与优化运行控制;崔挺(1986),男,湖北荆州人,博士,高工,研究方向为电力系统稳定分析与控制;王玎(1991),女,湖南益阳人,博士,工程师,研究方向为大电网运行与控制;沈非凡(1992),男,湖北咸宁人,助理教授,研究方向电力系统运行优化与控制。
