摘要
静止无功发生器(SVG)具有强非线性、强耦合性以及工程设计难以实现等特点,且在实际工程应用中,无功补偿效果易受补偿装置元器件参数的变化及外界的扰动的影响。以dq坐标系下的数学模型为基础,提出一种新型的双闭环控制策略,其中电压环采用滑模控制,电流环采用新型的无电感参数前馈解耦控制。经Matlab/Simulink搭建系统仿真模型,仿真结果表明,该控制系统不受电感参数的影响,且具有较强的鲁棒性和动态性能。
Static var generator has the characteristics of strong nonlinearity,strong coupling and its engineering design is also difficult to be realized.In the practical application,the reactive power compensation device is easily affected by the change of component parameters and the external disturbance.In this circumstance,a new type control strategy with double closed-loop is proposed based on the mathematic model in dq coordinate.The voltage loop adopts the sliding mode control while the current loop adopts a new type of feedforward decoupling control without inductance parameters.Finally,the control strategy is modeled by Matlab/Simulink.The simulation results show that the control system is not affected by the inductance parameters and has the strong robustness and good dynamic performance.
作者
曾庆军
刘海舰
赵冰冰
申兆丰
魏月
ZENG Qing-jun;LIU Hai-jian;ZHAO Bing-bing;SHEN Zhao-feng;WEI Yue(School of Electronics and Information,Jiangsu University of Science and Technology,Zhenjiang 212003,China;Jiangsu Zhenjiang Yangzhou car ferry management office,Zhenjiang 212004,China;Chizhou Power Supply Company,Chizhou 247200,China)
出处
《电力科学与技术学报》
CAS
北大核心
2018年第3期64-69,共6页
Journal of Electric Power Science And Technology
基金
江苏省科技支撑计划项目(BE2012146)
镇江市重点研发计划项目(GY201503)
关键词
静止无功发生器
滑模控制
无电感前馈解耦控制
非线性
static var generator
sliding mode control
feed-forward decoupling without inductance parameters
nonlinear
