Guangze Shi;Junlan Ou;Zhenxi Wu;Junhao Zhang;Xuesong Xu;Yajuan Guan;Josep M. Guerrero
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引用次数: 0
Abstract
As for the cascaded converter system, the existing grid-connected self-synchronization control methods are sensitive to grid fluctuations, which will affect the system stability and may lead to issues about the existence of equilibrium points of the system. To address these issues, this article analyzes the impact of grid voltage fluctuation on the existence of system equilibrium points. A robust decentralized self-synchronizing control method is proposed, where a voltage correction mechanism is designed to guarantee the system's equilibrium points. Besides ensuring frequency self-synchronization, the flexible adjustment abilities of output power and power factor are greatly improved. The control-hardware-in-loop and RTU-BOX-based experiment results under grid voltage fluctuation and load changing show that the system has good disturbance rejection capability and robust performance.
期刊介绍：
The IEEE Transactions on Power Electronics journal covers all issues of widespread or generic interest to engineers who work in the field of power electronics. The Journal editors will enforce standards and a review policy equivalent to the IEEE Transactions, and only papers of high technical quality will be accepted. Papers which treat new and novel device, circuit or system issues which are of generic interest to power electronics engineers are published. Papers which are not within the scope of this Journal will be forwarded to the appropriate IEEE Journal or Transactions editors. Examples of papers which would be more appropriately published in other Journals or Transactions include: 1) Papers describing semiconductor or electron device physics. These papers would be more appropriate for the IEEE Transactions on Electron Devices. 2) Papers describing applications in specific areas: e.g., industry, instrumentation, utility power systems, aerospace, industrial electronics, etc. These papers would be more appropriate for the Transactions of the Society which is concerned with these applications. 3) Papers describing magnetic materials and magnetic device physics. These papers would be more appropriate for the IEEE Transactions on Magnetics. 4) Papers on machine theory. These papers would be more appropriate for the IEEE Transactions on Power Systems. While original papers of significant technical content will comprise the major portion of the Journal, tutorial papers and papers of historical value are also reviewed for publication.
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