在碳达峰、碳中和背景下，可再生能源与燃煤发电相互耦合可提高可再生能源利用效率、降低发电成本，有利于燃煤发电的绿色低碳化升级。从集成形式、运行调控及分析评价3方面综述了可再生能源和燃煤发电的集成互补相关研究。首先梳理了可与燃煤发电直接耦合的太阳能光热及生物质的各类集成形式和工作原理。其次，介绍了目前关于太阳能光热耦合燃煤发电动态特性及调控规律研究，生物质耦合燃煤发电运行中结渣、腐蚀等问题改善方法；概述了风电、光伏与燃煤发电协调运行的调控策略及优化配置研究。最后，梳理了针对光煤互补系统热力性能、经济性、综合性能的评价研究进展；介绍了生物质与燃煤发电耦合的综合性能评价及系统中生物质发电量评估的研究进展；概述了风电、光伏与燃煤发电协调运行中的稳定性、灵活性量化评价及综合性能评价指标体系构建等。最后，针对目前可再生能源与燃煤发电互补系统的研究现状，提出太阳能光热与燃煤发电集成应致力于实现综合系统深度调峰的灵活性运行调控研究；生物质与燃煤耦合发电在进一步研究减缓生物质耦合带来的燃烧问题外，应注重耦合系统中生物质发电准确计量等评价问题；光伏、风电与燃煤发电的协调运行在调度规划研究外，应进一步开展风光火项目内部责任分担和利益分配机制研究，从而实现不同类型电源间的协同持续发展。

In the context of carbon peaking and carbon neutrality, the integration of renewable energy and coal-fired power generation could improve the efficiency of renewable energy utilization, reduce the corresponding cost and also facilitate the green and low-carbon upgrading of coal-fired power generation. The integration and complementation of renewable energy and coal-fired power generation were reviewed from three aspects: integration form, operation regulation and the evaluation criteria. Firstly, the integration forms and working principles of solar thermal energy and biomass that can be directly coupled with coal-fired power generation were sorted out. Secondly, the current research on the dynamic characteristics and regulation laws of solar-thermal coupled coal-fired power generation were introduced. The improvement methods of slagging and corrosion in the operation of biomass coupled coal-fired power generation were summarized, the regulation strategies and optimal configuration of wind power and photovoltaic for coordinated operation with coal-fired power generation were outlined. Finally, the research progresses on the evaluation of the thermal performance, economy and comprehensive performance of the solar-coal complementary system were reviewed. The research progresses on the comprehensive performance evaluation of the coupled biomass and coal-fired power generation and the evaluation of the biomass power generation capacity in the system were introduced. The quantitative evaluation of the stability and flexibility of the coordinated operation of wind power, photovoltaic and coal-fired power generation and the construction of the comprehensive performance evaluation index system were outlined. Considering the current status of integration of renewable energy and coal-fired power generation, the integration of solar aided coal-fired power generation should be devoted to the study of deep peak regulation and more flexible system operation of the integrated system. Beyond the research on the mitigation of combustion problems brought by the coupling of biomass, the integration of biomass and coal power generation should focus on the evaluation of biomass power generation in the whole system. The coordinated operation of photovoltaic, wind power and coal-fired power generation should be further studied in addition to the scheduling planning, and the study of the internal responsibility sharing and benefit distribution mechanism of the wind and fire projects should be further carried out, so as to realize the synergistic and sustainable development among different types of power sources.

0 引言

1 可再生能源-燃煤发电系统直接集成

   1.1 基于太阳能光热的集成形式

   1.2 生物质与燃煤发电集成形式

2 系统运行调控

   2.1 直接集成系统运行调控

   2.2 多能互补协同运行策略

3 系统分析评价

4 结语与展望