作　　者： ; ; ; ;

机构地区： 仲恺农业工程学院机电工程学院

出　　处： 《电机与控制学报》 2011年第7期71-76,共6页

摘　　要： 为了提高逆变器滑模控制器的稳态精确度,针对一种由一个双向Buck变换器和桥式换向电路组成的单Buck型逆变器进行类似Lyapunov函数的布尔量滑模控制策略的研究。在其等效电路的状态空间平均法动态模型基础上,建立单Buck型逆变器等效电路的三阶系统数学模型,构建具有电流环节和积分环节的全状态变量滑模切换函数,在此切换函数基础上给出布尔滑模控制器的分析和设计过程。仿真和实验结果表明:系统稳态终值误差小,输出电压和电流具有强鲁棒性和良好动态性能;布尔滑模控制的实际控制律简单,易于实现;验证了所采用布尔滑模控制策略的正确性。 In order to further increase the in,~erter sliding-mode eontroUer＇ s precision, a Boolean sliding- mode control strategy based on Lyapunov-like function was researched on the single Buck inverter com- posed of a bi-directional Buck converter and bridge-type diverter. Based on the state space average meth- od dynamic modeling of the system equivalent circuit, third-order system mathematical model of single Buck inverter equivalent circuit and full status sliding manifold with current element and integral element were established. There were operation principles of circuit, circuit dynamic mode and the steps of Boole- an sliding-mode controller design. The emulation and experiment show that the system steady-state preci- sion is small. Output voltage and current have strong robustness and a good dynamic performance and Boolean sliding-mode actual control was simple of control strategy. and was to be realized. These results verify the correction

关 键 词： 逆变器 滑模控制 布尔量 三阶系统 稳态误差 李导数

领　　域： [电气工程]