飞轮储能系统放电单元无源化控制方法研究  

Study on passivity control method for flywheel energy storage system discharging unit

作　　者：荀尚峰[1] 李铁才[1] 周兆勇 

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,黑龙江哈尔滨150001 [2]深圳航天科技创新研究院,广东深圳518057

出　　处：《电机与控制学报》2010年第7期7-12,共6页Electric Machines and Control

基　　金：国防预研项目

摘　　要：针对飞轮储能系统放电单元的DC/DC开关变换器非线性控制问题,研究系统中二次电源Boost变换器,给出适于仿真和编程的Boost变换器标幺值平均模型。基于Lyapunov直接方法,分析Boost变换器的稳定性。应用非线性系统的微分几何理论,通过坐标变换和反馈补偿将非线性系统反馈等价为子系统与积分器的串联结构,得到一种使Boost变换器控制系统渐近稳定的无源化控制律,并给出DC-AC逆变器的设计方法。仿真和实验结果表明,系统在输入大范围变化时,控制器具有良好的鲁棒性使输出保持稳定。Due to the nonlinear control problem of the DC/DC converter with flywheel energy storage sys-tem discharging unit,the characteristics of boost converter were analyzed.The average normalized model was described,which was suitable for simulation and programming.Based on Lyapunovs’ direct method,the stability of the Boost converter was analyzed.With the help of the differential geometry theory of non-linear system,the standard chain type structure was derived by coordinate change and feedback compen-sation,and the passivity control scheme was obtained.The design method of DC-AC inverter was presen-ted.The simulation and experimental results show that the controller has good robustness for disturbance caused by input changes.

关 键 词：飞轮储能系统 升压变换器 李亚普诺夫直接方法 微分几何理论 无源化 

分 类 号：TM464[电气工程—电器]