NDLI: A novel control method for dual mode time-sharing grid-connected inverter

Content Provider	IEEE Xplore Digital Library
Author	Weimin Wu Houlai Geng Pan Geng Yinzhong Ye Min Chen
Copyright Year	2010
Description	Author affiliation: College of Electrical Engineering, Zhejiang University, China (Min Chen) \|\| Shanghai Institute of Technology, China (Yinzhong Ye) \|\| Department of Electrical Engineering of Shanghai Maritime University, China (Weimin Wu; Houlai Geng; Pan Geng)
Abstract	A dual mode time-sharing inverter has higher efficiency than other type grid-connected inverter due to only one power stage of it working in high frequency state at any time. In this paper, small signal modeling of this inverter is carried out, which reveals that the control-to-grid current transfer function of this inverter has a right half plane zero at low frequency during the “Boost” operating stage which results in the difficulty in controlling the system. An indirect current control method based on instantaneous power balance is proposed. The right-half plane zero can be eliminated and a satisfactory compensator with enough phase margin and amplitude margin can be obtained with this new control strategy. And it is evaluated through simulation and experimental results of a 1kW prototype.
Starting Page	53
Ending Page	57
File Size	766767
Page Count	5
File Format	PDF
ISBN	9781424452866
DOI	10.1109/ECCE.2010.5618077
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Choppers Instantaneous power balance Small-signal-model Transfer functions Switches Inverters Equations Full-bridge inverter Grid-connected Bridge circuits Time-sharing operation Mathematical model Dual mode control
Content Type	Text
Resource Type	Article

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