Journal
ELECTRONICS
Volume 11, Issue 21, Pages -Publisher
MDPI
DOI: 10.3390/electronics11213610
Keywords
energy storage system; distrusted energy resources; virtual power plant; optimization; peak load shaving; peak load leveling; demand response; solar power
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Funding
- Emera & NB Power Research Center for Smart Grid Technologies at University of New Brunswick
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The objective of this study is to perform peak load shaving at a virtual power plant (VPP) to maximize the electricity cost-saving for local distribution companies (LDCs) while satisfying the necessary operational constraints. By implementing an efficient algorithm to control the conservation voltage reduction technique (CVR) with embedded energy resources (EERs), this study demonstrates the performance and economic benefits of the algorithm using real data from an Australian power distribution network.
The objective of this study is to perform peak load shaving at a virtual power plant (VPP) to maximize the electricity cost-saving for local distribution companies (LDCs) while satisfying the necessary operational constraints. It can be achieved by implementing an efficient algorithm to control the conservation voltage reduction technique (CVR) with embedded energy resources (EERs) to optimize electricity costs during peak hours. EERs consist of distributed energy resources (DERs) such as solar and diesel generators and energy storage systems (ESSs) such as utility-scale and residential batteries. An objective function of mixed integer linear programming is formulated as the electricity cost function. Different operational constraints of EERs are formulated to solve the peak shaving optimization problem. The proposed algorithm is tested using data from a real Australian power distribution network. This paper discusses four cases to demonstrate the performance and economic benefits of the control algorithm. Each of these cases illustrates how EERs contribute differently each year, month, and day. Results showed that the proposed algorithm offers significant cost savings and can shave up to three daily peaks.
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