Reviews

Current linear regulators of grid-connected photovoltaic inverter: A review

  • WAN Xiaofeng ,
  • HU Hailin ,
  • YU Yunjun ,
  • XIN Jianbo
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  • 1. College of Information Engineering, Nanchang University, Nanchang 330031, China;
    2. Jiangxi Electric Power Research Institute, Nanchang 330006, China

Received date: 2015-03-18

  Revised date: 2015-06-10

  Online published: 2015-08-28

Abstract

The grid-connected photovoltaic inverter is the interface between photovoltaic energy sources and the grid, and it plays a key role in controlling the quality of grid at the point of common coupling. The current control methods of the PV grid-connected inverter is numerous, and there are a variety of current regulators, but there is a big difference between the regulators in control structure, realization method and effect of control. The PV grid-connected inverters are overviewed in the view of the current linear regulator. The main linear current regulators: proportional-integral, proportion resonance and deadbeat regulators are compared and evaluated in terms of advantage and disadvantage of algorithm, complexity of realization, real-time performance, steady-state error, etc. Some possible future research fields of the linear current regulator are discussed.

Cite this article

WAN Xiaofeng , HU Hailin , YU Yunjun , XIN Jianbo . Current linear regulators of grid-connected photovoltaic inverter: A review[J]. Science & Technology Review, 2015 , 33(16) : 81 -87 . DOI: 10.3981/j.issn.1000-7857.2015.16.013

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