Dynamic Optimization of Combined Cooling, Heating, and Power Systems with Energy Storage Units

In this paper, a combined cooling, heating, and power (CCHP) system with thermal storage tanks is introduced. Considering the plants’ off-design performance, an efficient methodology is introduced to determine the most economical operation schedule. The complex CCHP system’s stat...

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Bibliographic Details
Main Authors: Jiyuan Kuang, Chenghui Zhang, Fan Li, Bo Sun
Format: Article
Language:English
Published: MDPI AG 2018-08-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/11/9/2288
Description
Summary:In this paper, a combined cooling, heating, and power (CCHP) system with thermal storage tanks is introduced. Considering the plants’ off-design performance, an efficient methodology is introduced to determine the most economical operation schedule. The complex CCHP system’s state transition equation is extracted by selecting the stored cooling and heating energy as the discretized state variables. Referring to the concept of variable cost and constant cost, repeated computations are saved in phase operating cost calculations. Therefore, the most economical operation schedule is obtained by employing a dynamic solving framework in an extremely short time. The simulation results indicated that the optimized operating cost is reduced by 40.8% compared to the traditional energy supply system.
ISSN:1996-1073