摘要
针对多能源设备接入后送端电网在暂态过程中能量平衡控制问题,提出了一种考虑多能源电网阻尼不确定性的暂态功率鲁棒控制模型。针对送端电网在暂态过程中能量平衡的变化特性,建立了考虑送端系统惯性和功率控制系统时间延迟的暂态能量平衡动力学模型;针对送端系统初始阻尼状态已知前提下送端电网暂态能量平衡控制,基于可再生能源发电、多源储能等多能源设备接入后的系统阻尼变化趋势及其不确定性,建立了暂态能量鲁棒控制模型。文章以河北某典型的送出系统为算例,对所提出的模型和算法进行了仿真分析。仿真结果表明,所提出的暂态能量平衡鲁棒控制方法能够较好地提升多能源送端电网暂态稳定性能。
Aiming at the energy balance control problem of the transmitting-end power grid in the transient process after the multi-energy equipment is connected,a transient power robust control model considering the damping uncertainty of the multi-energy grid is proposed.According to the change characteristics of the energy balance process of the sending-end power grid in the transient process,a transient energy balance dynamic model considering the inertia of the sending-end system and the time delay of the power control system is established;for the sendingend system under the premise that the initial damping state of the sending-end system is known Power grid transient energy balance control,based on the change trend and uncertainty of system damping after renewable energy power generation,multi-source energy storage and other multi-energy equipment are connected,a robust transient energy controller model is established.Taking a typical sending system in Hebei as an example,the proposed model and algorithm are simulated and analyzed.The simulation results show that the proposed robust control method for transient energy balance can better improve the transient state of multi-energy transmission-end power grids.Stable performance.
作者
陈伟伟
张增强
毕立松
余中平
张文朝
关洪浩
于国康
Chen Weiwei;Zhang Zengqiang;Bi Lisong;Yu Zhongping;Zhang Wenchao;Guan Honghao;Yu Guokang(Economic and Technological Research Institute of State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830002,China;Xinjiang University,Urumqi 830046,China;Beijing Kedong Electric Power Control System Corporation Limited,Beijing 100192,China)
出处
《可再生能源》
CAS
CSCD
北大核心
2021年第12期1669-1674,共6页
Renewable Energy Resources
基金
国网新疆电力有限公司科技项目(SGXJJY00GHJS1900084)。
关键词
多能源系统
可再生能源
暂态过程
能量平衡
功率控制
multi-energy system
renewable energy
transient process
energy balance
power control
