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http://dx.doi.org/10.6113/TKPE.2016.21.4.364

Grid Connected Inverter of ESS for Seamless mode Transition  

Hong, Chang-Pyo (Dept. of control & Instrumentation Eng., Korea Nat' Univ. of Transportation)
Kim, Hag-Wone (Dept. of control & Instrumentation Eng., Korea Nat' Univ. of Transportation)
Cho, Kwan-Yuhl (Dept. of control & Instrumentation Eng., Korea Nat' Univ. of Transportation)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.21, no.4, 2016 , pp. 364-372 More about this Journal
Abstract
In this paper, a voltage controller for the seamless transition of a grid-connected inverter for ESS is proposed. The single-phase inverter is operated as a current controller when the grid is connected and as a voltage controller in the stand-alone mode when the grid is disconnected. Generally, in the case of grid recovery, the overcurrent may flow into the system because of the mismatch phase between the inverter output and grid voltages. The proposed controller resolves the overcurrent problem through phase delay problems with initial value feed-forward control of the integrator when the grid voltage is restored. The effects of the control method are simulated through PSIM, and the usefulness of the control method is verified through experiments.
Keywords
Single phase PWM inverter; Stand alone mode; Controller; Nonlinear load; Feedforward;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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