Optimal Configuration of User-Side Energy Storage for Multi-Transformer Integrated Industrial Park Microgrid

Under a two-part tariff, the user-side installation of photovoltaic and energy storage systems can simultaneously lower the electricity charge and demand charge. How to plan the energy storage capacity and location against the backdrop of a fully installed photovoltaic system is a critical element i...

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Bibliographic Details
Published inEnergies (Basel) Vol. 16; no. 7; p. 3115
Main Authors Chen, Wengang, Chen, Jiajia, Xu, Bingyin, Cong, Xinpeng, Yin, Wenliang
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.04.2023
Subjects
Analysis
Carbon
Configurations
Constraint modelling
Cost recovery
Distributed generation
Electric rates
Electric transformers
Electricity
Energy management systems
Energy storage
Industrial districts
industrial park microgrid
Industrial parks
Installation
Integer programming
Linear programming
Maintenance costs
multi-transformer
Objective function
optimal configuration
Optimization
Photovoltaics
Planning
Power supply
Simulation methods
Storage capacity
Storage systems
Tariffs
Time of use electricity pricing
user-side
China
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Summary:Under a two-part tariff, the user-side installation of photovoltaic and energy storage systems can simultaneously lower the electricity charge and demand charge. How to plan the energy storage capacity and location against the backdrop of a fully installed photovoltaic system is a critical element in determining the economic benefits of users. In view of this, we propose an optimal configuration of user-side energy storage for a multi-transformer-integrated industrial park microgrid. First, the objective function of user-side energy storage planning is built with the income and cost of energy storage in the whole life cycle as the core elements. This is conducted by taking into consideration the time-of-use electricity price, demand price, on-grid electricity price, and energy storage operation and maintenance costs. Then, considering the load characteristics and bidirectional energy interaction of different nodes, a user-side decentralized energy storage configuration model is developed for a multi-transformer-integrated industrial park microgrid. Finally, combined with the engineering practice constraints, the configuration model is solved by mixed integer linear programming. The simulation test demonstrates how the proposed model can successfully increase the economic benefits of an industrial park. Electricity and demand costs are reduced by 11.90% and 19.35%, respectively, and the photovoltaic accommodation level is increased by 4.2%, compared to those without the installation of energy storage system.
ISSN:1996-1073
1996-1073
DOI:10.3390/en16073115