“风光水”互补发电系统的调度策略

Scheduling Strategy of Wind-Photovoltaic-Hydro Hybrid Generation System

已有的可再生能源发电调度策略的研究成果大多针对单一风能或太阳能以及"风光"、"风水"互补发电系统,较少涉及到综合了"风光水"3种能源的互补发电系统。为此,提出了"风光水"互补发电系统的调度策略,在综合考虑了投资、系统运营成本、环境治理等因素,以及孤网、并网这2种运行方式的前提下,建立了最低成本的优化模型。在此基础上,提出了"风光水"互补发电系统的调度策略,实现了"风光水"这3种新能源输出功率的最佳配置,相关仿真结果验证了上述调度策略的可行性。研究表明,最优运行和调度策略可以评估系统在不同运行方式下的经济性能,提高互补系统的可靠性和灵活性。

The existing research achievements on the scheduling strategy of renewable energy power generation are mostly for wind power, solar power or wind-photovoltaic generation system, wind-hydro generation system, but less involve wind-photovoltaic-hydro hybrid generation system. So this paper proposed the scheduling strategy for the hybrid generation system. The lowest-cost optimization model was built under two operation modes： isolated and grid-connected operation, with considering investment, operating costs of system and environmental governance. Then, this paper proposed the scheduling strategy of the hybrid generation system to realize the best configuration of output power of the three resources, whose feasibility was verified by related simulation results. The results show that the optimal operation and scheduling strategy can assess the economical performance of the system under different operation modes, thus improve the reliability and flexibility of the hybrid system.