摘要
Virtual power plant (VPP) aggregates distributed energy resources (DER) as a single profile to overcome scale disadvantage and dispersed characteristics. A commercial virtual power plant (CVPP) especially operates to improve the power-market involvement. In this article, the CVPP medium-term bidding strategy is optimized to obtain the profit interval mostly preferred by the CVPP's decision maker. Because the medium-term forecast of renewable power generation and day ahead (DA) market price is far more difficult than short term, interval optimization is proposed, which does not require uncertain variable-distribution assumption. The pessimism degree is introduced to quantify the decision maker's risk acceptance and compare intervals so as to solve the interval-optimization model. Within the interval-optimization framework, the bidding strategy between the bilateral contract (BC) and the DA market is figured out. A combined DA market deal and gas turbine generator strategy is proposed to cope with power shortage. Finally, an in-depth sensitivity analysis is applied, and the characteristics and caution of interval optimization are deduced.
- 出版日期2018-11
- 单位上海交通大学