Alternative values measurement of energy storage in novel power system
Energy storages can solve the problems of insufficient peak-shaving ability, unstable frequency and insufficient inertia in novel power system, and have a broad development prospect together with renewables. In addition to technical factors, the long-term development of energy storages also needs to...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Harbin Jinhe Electrical Measurement & Instrumentation Magazine Publishing Co., Ltd.
2025-02-01
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| Series: | Diance yu yibiao |
| Subjects: | |
| Online Access: | http://www.emijournal.net/dcyyben/ch/reader/create_pdf.aspx?file_no=20220523012&flag=1&journal_id=dcyyben&year_id=2025 |
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| Summary: | Energy storages can solve the problems of insufficient peak-shaving ability, unstable frequency and insufficient inertia in novel power system, and have a broad development prospect together with renewables. In addition to technical factors, the long-term development of energy storages also needs to consider the economic factors, clarify various values in multiple system, and compare with their investment costs. In order to solve the problems of unclear definition and rough accounting of energy storage values in previous literatures, this paper proposes an improved measurement method of energy storage alternative values. By referring to the vickery clark aloves (VCG) mechanism, this paper proposes a framework to measure the alternative value of energy storages, and calculate the contribution of energy storages to the system overall cost reduction. When measuring the overall costs, this paper uses the planning-operation two-stage joint optimization model. This model considers the inter-action of generation, network, load and storages, which can realize more accurate and reasonable economic analysis. The effectiveness of the proposed model is demonstrated based on an IEEE 5-bus system. It is found that energy storages have multiple values, such as replacing generation and transmission investments, reducing demand response and reserve costs. |
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| ISSN: | 1001-1390 |