风柴储生物质独立微网系统的优化控制

发布时间：2019-02-26 17:28

【摘要】：生物质资源是广泛存在且可存储的绿色可再生能源,但生物质发电技术在偏远地区的独立微网系统中应用较少。该文围绕风柴储生物质独立微网系统,基于各分布式电源运行特性,提出一种包含正常运行时的经济运行调度和大扰动时的紧急功率控制的双模式优化控制方案。柴油发电机组运行于发电效率较高的基点运行功率附近,吸收净负荷的瞬时波动,并提供系统运行备用容量;生物质发电系统视净负荷的波动出力,和风电实现有效的合作发电,提高可再生能源渗透率;提出一种新的电池储能系统控制方法,优先紧急功率控制,削峰填谷次之,减小储能容量配置需求,优化运行工况。针对某偏远社区的独立微网系统,从基于准稳态的系统运行经济性和典型运行场景下的暂态稳定性两个层面进行仿真研究,结果验证了方法的有效性。
[Abstract]:Biomass resources are widely existed and can be stored in green renewable energy, but biomass power generation technology in remote areas of independent micro-grid system application is less. In this paper, based on the characteristics of distributed power supply, a dual-mode optimal control scheme is proposed, which includes economic operation scheduling in normal operation and emergency power control in large disturbance around the independent micro-grid system of wind firewood storage and raw matter. The diesel generator sets operate near the base point power with higher generation efficiency, absorb the instantaneous fluctuation of the net load, and provide the standby capacity of the system operation. Biomass power generation system, depending on the fluctuation of net load, and wind power to achieve effective co-generation, improve the permeability of renewable energy; This paper presents a new control method of battery energy storage system, which gives priority to emergency power control, followed by peak cutting and valley filling, reduces energy storage capacity allocation requirements, and optimizes operation conditions. For an independent micro-grid system in a remote community, the simulation results show that the proposed method is effective from the aspects of quasi-steady state-based operation economy and transient stability in typical operation scenarios.
【作者单位】：智能电网教育部重点实验室(天津大学);国电联合动力技术有限公司;
【基金】：国家863高技术基金项目(2011AA05A107)~~
【分类号】：TM61

【参考文献】