Earticle

초록

영어

The modular multilevel converter (MMC) has been widely researched in the past decade for its superior performance in high voltage high power applications. However, applying MMC into electric motor drive systems is a intrinsically challenging problem because the capacitor voltages fluctuate in a wide range when the converter works at low output frequencies. A novel model predictive vector control (MPVC) scheme is presented to ensure the output phase currents’ quality of MMC for entire frequency range. In this scheme, model predictive control (MPC) is adopted to track the phase currents’ reference values and balance the capacitor voltages as far as possible. By replacing the conventional inner current control loops and pulse width modulation (PWM) module with MPC controllers, the vector control oriented by rotor flux is constructed to meet the requirements of drive systems. Simulations of a MMC drive with an induction motor are carried out using the Matlab/Simulink. The simulation waveforms demonstrate that the drive system achieves satisfied steady and dynamic performance.

목차

Abstract
 1. Introduction
 2. System Structure and Operating Principles
 3. Mathematical Model of an MMC
  3.1. Continuous Mathematical Model
  3.2. Discrete Mathematical Model for MPC Strategy
 4. Design of Control System
  4.1. MPC Strategy for MMC
  4.2. Model Predictive Vector Control
 5. Performance Evaluation
  5.1. Steady-State Performance
  5.2. Dynamic-State Performance
 6. Conclusion
 References

키워드

저자

• Peng Dai [ School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China ]
• Zheng Gong [ School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China ]
• Guosheng Guo [ School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Control and Automation

• 간기

  월간

• pISSN

  2005-4297

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605