Periodic errors elimination in CVCF PWM DC/AC converter systems: repetitive control approach
Periodic errors elimination in CVCF PWM DC/AC converter systems: repetitive control approach
- Author(s): K. Zhou ; D. Wang ; K.-S. Low
- DOI: 10.1049/ip-cta:20000782
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- Author(s): K. Zhou 1 ; D. Wang 1 ; K.-S. Low 1
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View affiliations
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Affiliations:
1: School of EEE, Nanyang Technological University, Singapore
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Affiliations:
1: School of EEE, Nanyang Technological University, Singapore
- Source:
Volume 147, Issue 6,
November 2000,
p.
694 – 700
DOI: 10.1049/ip-cta:20000782 , Print ISSN 1350-2379, Online ISSN 1359-7035
A plug-in digital repetitive learning (RC) controller is proposed to eliminate periodic tracking errors in constant-voltage constant-frequency (CVCF) pulse-width modulated (PWM) DC/AC converter systems. The design of the RC controller is systematically developed and the stability analysis of the overall system is discussed. The periodic errors are forced toward zero asymptotically and the total harmonics distortion (THD) of the output voltage is substantially reduced under parameter uncertainties and load disturbances. Simulation and experimental results are provided to illustrate the validity of the proposed scheme.
Inspec keywords: learning systems; discrete time systems; uncertain systems; digital control; DC-AC power convertors; PWM power convertors; stability
Other keywords:
Subjects: Stability in control theory; Control of electric power systems; Power convertors and power supplies to apparatus; Self-adjusting control systems; Control engineering computing; Power engineering computing; Discrete control systems
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