Control of DC-link by adaptive PID control for DC/DC boost converter

Thanana Nuchkrua*, Thananchai Leephakpreeda

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Generally, a photovoltaic (PV) system generates a wide range of voltages and currents at the terminal output. Normally, the PV cell cannot functionally maintain a constant direct current (DC) voltage while incident illumination and ambient temperature. To overcome that problem, a power electronics convertor such as DC/DC converter with the control scheme topology may be used. However, a linear conventional controller like PID control scheme is not suitable to be a controller for regulating the output voltage of DC/DC converter due to nonlinearity of converter. In this paper, the adaptive PID control scheme is considered to stabilizing the output voltage of the DC/DC converter in order to maintain and stabilize the constant DC-link voltage in both power line and load variations. Conventional control is compared with the proposed controller in both transient and steady state responses. The results show that the proposed control scheme is more performance than conventional control scheme. The transient response is improved by the proposed controller, in which the gain parameters are automatically tuned. Moreover, at steady state response is more robust against to the uncertainty while operation.

Original languageEnglish
Title of host publication2013 CACS International Automatic Control Conference, CACS 2013 - Conference Digest
Pages423-426
Number of pages4
DOIs
StatePublished - 2013
Externally publishedYes
Event2013 CACS International Automatic Control Conference, CACS 2013 - Nantou, Taiwan, Province of China
Duration: 2 Dec 20134 Dec 2013

Publication series

Name2013 CACS International Automatic Control Conference, CACS 2013 - Conference Digest

Conference

Conference2013 CACS International Automatic Control Conference, CACS 2013
CountryTaiwan, Province of China
CityNantou
Period2/12/134/12/13

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