A direct load control of air-conditioning loads with thermal comfort control

Chi Min Chu, Tai Lang Jong, Yue Wei Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

41 Citations (Scopus)

Abstract

The lack of new generation capacity and the higher fuel generation cost are the serious problems of Taipower. Taipower attempted to make the optimal economic fuel-cost dispatch of its existing generation capacity by applying direct load control method (DLC). However, some constraints such as the outdoor temperature, thermal comfort level of consumers, and air-conditioning load payback phenomenon restrain the executions of DLC. In order to alleviate the above problems, a reasonable DLC program with a least enthalpy estimator (LEE)-based fuzzy thermal comfort controller of air-conditioning systems is proposed in this paper. It can store the heat transfer capacity of the chilled water by a time delay after load-shedding command is issued. With the help of the proposed LEE-based fuzzy control and this pre-stored chilled-water heat transfer capacity, a smaller increase of the chilled-water temperature during off-shift period is obtained which can avoid the transient payback load effect. Meanwhile, the thermal comfort is also maintained within an acceptable level.

Original languageEnglish
Title of host publication2005 IEEE Power Engineering Society General Meeting
Pages664-669
Number of pages6
Volume1
Publication statusPublished - 2005 Oct 31
Event2005 IEEE Power Engineering Society General Meeting - San Francisco, CA, United States
Duration: 2005 Jun 122005 Jun 16

Other

Other2005 IEEE Power Engineering Society General Meeting
CountryUnited States
CitySan Francisco, CA
Period05-06-1205-06-16

Fingerprint

Thermal comfort
Air conditioning
Enthalpy
Heat transfer
Water
Fuzzy control
Costs
Time delay
Temperature
Controllers
Economics

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Chu, C. M., Jong, T. L., & Huang, Y. W. (2005). A direct load control of air-conditioning loads with thermal comfort control. In 2005 IEEE Power Engineering Society General Meeting (Vol. 1, pp. 664-669)
Chu, Chi Min ; Jong, Tai Lang ; Huang, Yue Wei. / A direct load control of air-conditioning loads with thermal comfort control. 2005 IEEE Power Engineering Society General Meeting. Vol. 1 2005. pp. 664-669
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Chu, CM, Jong, TL & Huang, YW 2005, A direct load control of air-conditioning loads with thermal comfort control. in 2005 IEEE Power Engineering Society General Meeting. vol. 1, pp. 664-669, 2005 IEEE Power Engineering Society General Meeting, San Francisco, CA, United States, 05-06-12.

A direct load control of air-conditioning loads with thermal comfort control. / Chu, Chi Min; Jong, Tai Lang; Huang, Yue Wei.

2005 IEEE Power Engineering Society General Meeting. Vol. 1 2005. p. 664-669.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - The lack of new generation capacity and the higher fuel generation cost are the serious problems of Taipower. Taipower attempted to make the optimal economic fuel-cost dispatch of its existing generation capacity by applying direct load control method (DLC). However, some constraints such as the outdoor temperature, thermal comfort level of consumers, and air-conditioning load payback phenomenon restrain the executions of DLC. In order to alleviate the above problems, a reasonable DLC program with a least enthalpy estimator (LEE)-based fuzzy thermal comfort controller of air-conditioning systems is proposed in this paper. It can store the heat transfer capacity of the chilled water by a time delay after load-shedding command is issued. With the help of the proposed LEE-based fuzzy control and this pre-stored chilled-water heat transfer capacity, a smaller increase of the chilled-water temperature during off-shift period is obtained which can avoid the transient payback load effect. Meanwhile, the thermal comfort is also maintained within an acceptable level.

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Chu CM, Jong TL, Huang YW. A direct load control of air-conditioning loads with thermal comfort control. In 2005 IEEE Power Engineering Society General Meeting. Vol. 1. 2005. p. 664-669