Optimal Operation Strategy for Virtual Power Plant Considering Regulation Market and External Demand Response
The participation of virtual power plant (VPP) in power grid demand response has become an important means for peak load shaving in new power system. It is critical to consider how to improve the profitability of VPPs in the electricity market. Therefore, This paper proposes an optimal operation str...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
State Grid Energy Research Institute
2023-12-01
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| Series: | Zhongguo dianli |
| Subjects: | |
| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202309024 |
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| Summary: | The participation of virtual power plant (VPP) in power grid demand response has become an important means for peak load shaving in new power system. It is critical to consider how to improve the profitability of VPPs in the electricity market. Therefore, This paper proposes an optimal operation strategy for VPP considering regulation market and external demand response. Firstly, the regulation market (RM) and demand response exchange market (DRXM) models are established. Secondly, considering the flexibility of external demand response (EDR), an operation decision framework is established for VPP with EDR to participate in the day-ahead and regulation market. Acting as an aggregator of multiple EDR suppliers, the DRXM provides EDR services to VPP to reduce the imbalance penalty of RM and to improve the economy of VPP. And then, a two-level VPP optimization operation model is established. In the upper level, the VPP maximizes its profits through participating in DRXM to reduce the RM penalty; in the lower level, the distribution system operator minimizes its operating cost through cleaning up the day-ahead market and regulation market deviation. The KKT conditions are used to transform the optimization model into a linear single-layer problem for solution. Finally, the improved IEEE 33-node distribution network system is used for case study, which verifies the effectiveness of the proposed optimal operation strategy in improving the VPP’s benefit ability and the effects of different EDR service ratios on VPP decision-making. |
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| ISSN: | 1004-9649 |