NDLI: Improved Digital Peak Voltage Predictive Control for Switching DC

Content Provider	IEEE Xplore Digital Library
Author	Jianping Xu Guohua Zhou Mingzhi He
Copyright Year	1982
Abstract	A digital peak voltage (DPV) predictive control for switching dc-dc converters is proposed and studied in this paper. With the predictive control technique, the duty ratio in each switching cycle is usually calculated and predicted based on the status in the previous switching cycles. Therefore, at least a one-switching-cycle time delay usually exists in predictivPe control, which significantly degrades the control performance of digital controlled switching dc-dc converters. To eliminate this time delay and to improve the control performance, an improved DPV (IDPV) predictive control technique is then proposed and studied. The control laws of DPV and IDPV with different pulsewidth modulations are derived, and their stabilities are analyzed. A simple digital slope compensation method is proposed to eliminate the subharmonic oscillation of DPV and IDPV control laws. The steady-state and transient performances of DPV and IDPV controlled buck converters are investigated by simulation and experiment. The comparison studies among DPV, IDPV, and digital peak current (DPC) control show that the transient performances of IDPV and DPV are much better than that of DPC and that IDPV is better than DPV.
Sponsorship	IEEE Industrial Electronics Society
Starting Page	3222
Ending Page	3229
Page Count	8
File Size	430740
File Format	PDF
ISSN	02780046
Volume Number	56
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Predictive control Switching converters DC-DC power converters Delay effects Digital control Degradation Space vector pulse width modulation Pulse modulation Stability analysis Steady-state $V^{2}$ control digital slope compensation (DSC) peak voltage control predictive control switching dc–dc converters
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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