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Energies 2018, 11(3), 492; doi:10.3390/en11030492

A Soft Curtailment of Wide-Area Central Air Conditioning Load

Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
Faculty of Engineering, Technology and Built Environment, UCSI University, Kuala Lumpur 56000, Malaysia
Author to whom correspondence should be addressed.
Received: 26 January 2018 / Revised: 19 February 2018 / Accepted: 22 February 2018 / Published: 26 February 2018
(This article belongs to the Section Electrical Power and Energy System)
View Full-Text   |   Download PDF [2179 KB, uploaded 26 February 2018]   |  


An innovative solution to provide a demand response for power system is proposed in this paper by considering the feasibility of two-way direct load control (TWDLC) of central air conditioning chiller system for wide-area in real-time manner. Particularly, the proposed TWDLC scheme is designed to tackle the load shedding ratio optimization problem for all under-controlled customers, aiming to satisfy the target load curtailment defined in each scheduling step. Another notable contribution of this work is the utilization of constraint loosening concept on actual load, curtailed to overcome the uncertainties of load reduction during TWDLC. Given the presence of fuzzy constraints, the proposed load shedding ratio optimization problem can be tackled using fuzzy linear programming. A delicate strategy is then formulated to transform the proposed fuzzy linear programming problem into a regular linear programming problem. A selection scheme used to obtain the feasible candidates set for load shedding at every sampling interval of TWDLC is also designed along with the fuzzy linear programming. View Full-Text
Keywords: fuzzy linear programming; direct load control; scheduling optimization; chillers; air condition; demand response fuzzy linear programming; direct load control; scheduling optimization; chillers; air condition; demand response

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yao, L.; Yao, L.; Lim, W.H. A Soft Curtailment of Wide-Area Central Air Conditioning Load. Energies 2018, 11, 492.

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