王瑜瑜,刘少军.电压型PWM串级调速系统控制策略的研究[J].电子测量技术,2017,40(6):80-84
电压型PWM串级调速系统控制策略的研究
Research on control strategy of voltage type PWM cascade speed system
  
DOI:
中文关键词:  PWM  逆变器  控制策略  MATLAB
英文关键词:PWM  inverter  control strategy  MATLAB
基金项目:西安航空职业技术学院综合科研项目(16XHKY 009)资助
作者单位
王瑜瑜 西安航空职业技术学院西安710089 
刘少军 西安航空职业技术学院西安710089 
AuthorInstitution
Wang Yuyu Xi′an Aeronautical Polytechnic Institute, Xi’an 710089, China 
Liu Shaojun Xi′an Aeronautical Polytechnic Institute, Xi’an 710089, China 
摘要点击次数: 1016
全文下载次数: 934
中文摘要:
      针对传统串级调速系统谐波污染严重、功率因数低等固有的缺点,设计了基于PWM逆变器的电压型串级调速系统。对dq坐标系下PWM逆变器的数学模型进行详细推导。为消除系统的耦合性和非线性选用精确线性化解耦附加变结构的控制策略,并对控制规律的构建过程加以推导。加上斩波电路的IGBT选用的转速电流双闭环PI控制,得到系统的控制图。最后利用MATLAB对控制策略的有效性进行仿真,结果表明系统不仅能够实现平滑无极调速,而且提高了功率因数、滤除了谐波、节约了能源。
英文摘要:
      Aiming at the inherent disadvantages of traditional cascade speed regulation system such as serious harmonic pollution and low power factor, a voltage cascade speed regulation system based on PWM inverter was designed.The mathematical model of PWM inverter in dq coordinates was derived in detail. In order to eliminate the coupling and nonlinear, the exact linearization decoupling additional variable structure control strategy was adopted, and the construction of control law was deduced. And the speed current double closed loop PI control was used by the IGBT chopper circuit to get the control chart of the system. Finally the effectiveness of control strategy was simulated by MATLAB. The results proved that the control strategy not only could achieve smooth and stepless speed regulation, but also could achieve the purpose of improving power factor, eliminating harmonic and saving energy.
查看全文  查看/发表评论  下载PDF阅读器