| 引用本文: | 张 亮,陈国栋,蔡 旭.新型高压变频器设计[J].电力自动化设备,2011,31(4): |
| ZHANG Liang,CHEN Guodong,CAI Xu.Novel high voltage converter[J].Electric Power Automation Equipment,2011,31(4): |
|
| 摘要: |
| 开发了一款可能量反馈的级联型高压变频器，其电网侧变换器摒弃了传统的二极管不可控整流器，而采用三相PWM整流器为电机侧级联型逆变器各H桥单元提供独立的直流电源，使得在不引入多脉波整流技术的情况下，就能够实现单位功率因数的整流和逆变，且网侧电流呈正弦，谐波含量小。为验证该结构变频器适合应用于高压大功率交流变频调速领域，以高压异步电动机为典型负载，采用基于转子磁链定向的矢量控制策略，对异步电动机的启动和突加负载特性进行了研究，并在Matlab／Simulink 下进行了仿真实验，实验结果证明了设计的有效性。 |
| 关键词: 级联型 高压变频器 能量反馈 矢量控制 |
| DOI： |
| 分类号: |
| 基金项目:2008年度上海市重大技术装备研制专项（ZX08030）；上海市科委“科技创新行动计划”（08DZ1200504，09DZ1201303） |
|
| Novel high voltage converter |
|
ZHANG Liang1, CHEN Guodong1,2, CAI Xu1
|
|
1.Wind Power Research Center，Shanghai Jiao Tong University，Shanghai 200240，China;2.Shanghai Electric Power Transmission Company，Shanghai 200240，China
|
| Abstract: |
| An energy-regenerative cascaded high voltage converter is designed. The three-phase PWM rectifier is used in grid converter，instead of the traditional diode uncontrollable rectifier，to supply isolated DC for each H-bridge of the cascaded inverter at motor side，which makes its rectifier and inverter both operating with unity power factor and the grid-side current totally sinusoidal with few harmonics，though the multi-pulse rectifier technique is not applied. The startup and load sudden increase of high voltage asynchronous induction motor under rotor flux oriented vector control is simulated on Matlab／Simulink platform and results show the designed converter is suitable for HV AC speed adjustment system. |
| Key words: cascade-type high voltage converter energy regeneration vector control |
