Wireless Paralleled Control Strategy of Three-phase Inverter Modules for Islanding Distributed Generation Systems

Zhiqiang Guo; Deshang Sha; Xiaozhong Liao

Wireless Paralleled Control Strategy of Three-phase Inverter Modules for Islanding Distributed Generation Systems

Zhiqiang Guo

Deshang Sha

Xiaozhong Liao

Vol. 13, No. 3, pp. 479-486, May 2013

10.6113/JPE.2013.13.3.479

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Abstract

This paper presents a control strategy for distributed systems, which can be used in islanded microgrids. The control strategy is based on the droop method, which uses locally measured feedback to achieve load current sharing. Instead of the traditional droop method, an improved one is implemented. A virtual inductor in the synchronous frame for three-phase inverters is proposed to deal with the coupling of the frequency and the amplitude related to the active and reactive power. Compared with the traditional virtual inductor, the proposed virtual inductor is not affected by high frequency noises because it avoids differential calculations. A model is given for the distributed generation system, which is beneficial for the design of the droop coefficients and the value of the virtual inductor. The effectiveness of the proposed control strategy is verified by simulation and experiment results.

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Cite this article

[IEEE Style]

Z. Guo, D. Sha, X. Liao, "Wireless Paralleled Control Strategy of Three-phase Inverter Modules for Islanding Distributed Generation Systems," Journal of Power Electronics, vol. 13, no. 3, pp. 479-486, 2013. DOI: 10.6113/JPE.2013.13.3.479.

[ACM Style]

Zhiqiang Guo, Deshang Sha, and Xiaozhong Liao. 2013. Wireless Paralleled Control Strategy of Three-phase Inverter Modules for Islanding Distributed Generation Systems. Journal of Power Electronics, 13, 3, (2013), 479-486. DOI: 10.6113/JPE.2013.13.3.479.