基于输入电流正弦化的三相-两相矩阵变换器控制策略  

Control Strategy of Three-Phase to Two-Phase Matrix Converter Based on Sinusoidal Input Current

作　　者：许宇翔[1,2] 方明辉[1] 雷能玮[3] 

机构地区：[1]湖州师范学院工学院,浙江湖州313000 [2]南京航空航天大学自动化学院,江苏南京210016 [3]湖州师范学院信息工程学院,浙江湖州313000

出　　处：《电机与控制应用》2017年第2期41-46,共6页Electric machines & control application

基　　金：湖州师范学院校级科研资助项目(2015XJLK35)

摘　　要：以实现输入电流正弦控制为目标,推导了系统两相输出电压调制函数表达式的约束关系。针对常规空间矢量调制策略下的扇区划分数量较多,提出了带中线拓扑结构的三相-两相矩阵变换器(3-2MC)新型扇区划分方式以减少到24种扇区。基于该扇区划分提出了新的空间矢量调制策略,分析了矩阵变换器在该控制策略下的工作模态,给出了具体调制算法与占空比的算式,分析并推导了3-2MC输出与输入电压利用率表达式。最后,用MATLAB/Simulink对系统模型进行了动态与静态仿真研究,结果验证了该调制策略的正确性和有效性。Based on the sinusoidal control of the input current, the constraint relation of the three-phase to two- phase Matrix Converter （3-2MC） output voltage modulation function was derived. According to the conventional space vector modulation strategy, the sector was divided into a large number of sectors. A new type of sector partition method was proposed to reduce to 24 sectors. A new space vector modulation strategy was proposed based on the sector partition. The operating modes of the 3-2MC under the control strategy was analyzed, detailed modulation algorithm was given, got calculation formula of duty ration, and deduced the expression of 3-2MC voltage transfer ratio. Finally, simulation results confirmed the effectiveness and feasibility of the new control method.

关 键 词：电流正弦化 三相-两相矩阵变换器 扇区划分 空间矢量调制 电压利用率 

分 类 号：TM301.2[电气工程—电机]