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Improved optimal control technique for control of parallel three- phase inverters

pouya, H. R. N ; Sharif University of Technology

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  1. Type of Document: Article
  2. Abstract:
  3. This paper proposes a high performance voltage tracking and current sharing among parallel connected inverters by applying optimal control and minimizing the cost function. The control system forces the voltage of load to track the voltage reference, and the current of all inverters becomes equal. Therefore, both current sharing and voltage tracking are obtained. In addition, the smallest input energy and simplicity in control circuit are the other advantages of the suggested method. To show the performance of the proposed control scheme, the simulations with two-modular practical systems are performed and the results are provided. The results indicate that the control objectives are achieved even if there are parameters mismatch among the parallel modules
  4. Keywords:
  5. Control objectives ; Control schemes ; Current-sharing ; If there are ; In-control ; Input energy ; Optimal control technique ; Optimal controls ; Parallel modules ; Parallel-connected ; Practical systems ; Three-phase inverter ; Voltage reference ; Voltage tracking ; Electric power measurement ; Energy conversion ; Optimization
  6. Source: 2009 International Conference on Electric Power and Energy Conversion Systems, EPECS 2009, Sharjah, 10 November 2009 through 12 November 2009 ; 2009 ; 9789948427155 (ISBN)
  7. URL: http://ieeexplore.ieee.org/document/5415741