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Digital Control of UPS Inverter with Time Response Specifications  

Woo Young-Tae (Dept. of Electronics, Chungbuk National University)
Kim Jae-Sik (Design Stategy Dept., System Engineering Division, POSCON CORPORATION)
Kim Young-Chol (School of Elec. & Computer Eng., Chungbuk National University)
Publication Information
KIEE International Transaction on Electrical Machinery and Energy Conversion Systems / v.5B, no.2, 2005 , pp. 196-203 More about this Journal
Abstract
In this paper, a digital controller for satisfying time response requirements for UPS inverters is designed in a fixed sampling time. The CRA (Characteristic Ratio Assignment) is used as the continuous time design method to deal with the problems of overshoot and settling time. The main design approaches are the inward and outward approaches based on a double-loop feedback structure. The continuous-time controller is discretized by the emulation method. The performances of the proposed controller are evaluated through several simulations carried out with Simpower System Toolbox 3.0 from Simulink$^{(R)}.
Keywords
CRA; Digital Control; Inward Approach; Outward Approach; UPS Inverter;
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