Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Effect of device models on the multiobjective optimal operation of CCHP microgrids considering shiftable loads | |
Cui, Qiong1 ; Ma, Peipei1; Huang, Lei1; Shu, Jie1; Luv, Jie2; Lu, Lin3
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| 2020-10-01 | |
| Source Publication | APPLIED ENERGY
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| ISSN | 0306-2619 |
| Volume | 275Pages:19 |
| Corresponding Author | Shu, Jie(shujie@ms.giec.ac.cn) |
| Abstract | Based on the importance of device modelling for the optimal operation of combined cooling, heating and power (CCHP) microgrids and load shifting for the demand-side response, the partial load ratio (PLR) and constant efficiency (CE) models of the main devices on the system operation are studied. Nonlinear PLR models of gas turbines, boilers and chillers are constructed. A piecewise least squares linearization method is proposed. Shiftable load models of cooling, heating and electricity are established, and load shifting is carried out. System optimization models with multiple optimization objectives are constructed and solved by a CPLEX solver. To compare the effects of different equipment models on the optimal operation under load shifting, different targets and heat-to-electricity ratios are given. The results show that compared with the segment broken-line linearization and least squares linearization method, the proposed method reduces the standard error of the performance curve by at least 20.97% and 75.49%, respectively. With different optimization objectives, the positive advantage of load shifting is related to the heat-to-electricity ratio. Using different heat-to-electricity ratios, the sensitivity of the optimization results of the PLR models to the heat-to-electricity ratio is higher than that of the CE models. The optimal operational effect of load shifting on different objectives of the PLR model is significantly better than that of the CE model. The model selection of the gas turbine, heating recovery steam generator and electric chiller with either the PLR or CE model demonstrates a considerable impact on the system operational results. |
| Keyword | CCHP microgrid Shiftable loads Partial load ratio model Constant efficiency model Multiple optimization objectives Heat-to-electricity ratio |
| DOI | 10.1016/j.apenergy.2020.115369 |
| WOS Keyword | DEMAND-SIDE MANAGEMENT ; AIR ENERGY-STORAGE ; GAS-TURBINE ; OPTIMAL-DESIGN ; OPTIMIZATION MODEL ; SYSTEM DRIVEN ; STRATEGY ; DISPATCH ; SOLAR ; PERFORMANCE |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program, China[2016YFB0901405] ; Key Research and Development Program of Hainan Province, China[ZDYF2018003] ; Science and Technology Planning Project of Guangdong Province, China[2018A050506069] ; Science and Technology Planning Project of Guangdong Province, China[2017B090901072] ; Special Fund Project for Marine Economic Development of Guangdong Province, China[GDNRC[2020]020] |
| WOS Research Area | Energy & Fuels ; Engineering |
| Funding Organization | National Key Research and Development Program, China ; Key Research and Development Program of Hainan Province, China ; Science and Technology Planning Project of Guangdong Province, China ; Special Fund Project for Marine Economic Development of Guangdong Province, China |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| WOS ID | WOS:000565603000004 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/27664 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Shu, Jie |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 2.China Nucl Power Design Co Ltd Shenzhen, Shenzhen 518100, Peoples R China 3.Hong Kong Polytech Univ, Dept Bldg Serv Engn, Hong Kong, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Cui, Qiong,Ma, Peipei,Huang, Lei,et al. Effect of device models on the multiobjective optimal operation of CCHP microgrids considering shiftable loads[J]. APPLIED ENERGY,2020,275:19. |
| APA | Cui, Qiong,Ma, Peipei,Huang, Lei,Shu, Jie,Luv, Jie,&Lu, Lin.(2020).Effect of device models on the multiobjective optimal operation of CCHP microgrids considering shiftable loads.APPLIED ENERGY,275,19. |
| MLA | Cui, Qiong,et al."Effect of device models on the multiobjective optimal operation of CCHP microgrids considering shiftable loads".APPLIED ENERGY 275(2020):19. |
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