摘要
随着新能源比例的不断提高,电力电子设备的毫秒级暂态控制与电网的秒级动态特征耦合程度不断加深,而当前的仿真系统在规模和速度方面无法适应复杂大规模电网的分析需求。为此,提出基于等效简化和GPU的高比例新能源电网快速仿真系统。基于控制模型和联结阻抗对大规模变流器设备进行聚合等效,在保证精度的前提下简化多变流器的仿真规模;对电网结构进行分区简化,便于并行计算以及降低运算复杂度;电网的仿真运算通过GPU并行计算完成,提高仿真系统的运行速度;通过聚合等效、分区简化和并行计算的相互结合,在保证仿真精度的前提下实现了高比例新能源电网的快速仿真,准确快速对高比例新能源电网的运行特性进行分析。最后通过运行实例验证了所提仿真系统具有较好的精度和运行效率。
As the proportion of new energy continues to increase,the coupling degree between the millisecond level transient control of power electronic equipment and the second level dynamic characteristics of the power grid is deepening.However,the current simulation system cannot meet the analysis requirements of complex large-scale power grid in terms of scale and speed.Therefore,a fast simulation system for grid with high proportion of new energy is proposed based on equivalent simplification and GPU.Based on the control model and connection impedance,the large-scale converter equipment is aggregated equivalent,and the simulation scale of multiple converters is simplified under the premise of ensuring accuracy.The grid structure is simplified in different regions,which is convenient for parallel computing and reduces the computational complexity.The simulation of the power grid is completed by GPU parallel computing,which improves the running speed of simulation system.Through the combination of aggregation equivalence,partition simplification and parallel computing,the rapid simulation of high proportion of new energy grid is realized while ensuring simulation accuracy,and the operating characteristics of grids with high-proportion new energy are accurately and quickly analyzed.Finally,the accuracy and operating efficiency of the proposed simulation system is verified through an example.
作者
路学刚
朱欣春
胡斌
董诗焘
文兆新
毛东宇
郑宗生
LU Xuegang;ZHU Xinchun;HU Bin;DONG Shitao;WEN Zhaoxin;MAO Dongyu;ZHENG Zongsheng(Yunnan Power Dispatching Control Center,Kunming 650000,China;Nanjing Nari-Relays Electric Co.,Ltd.,Nanjing 211102,China;Sichuan University,Chengdu 610065,China)
出处
《智慧电力》
北大核心
2024年第4期91-99,共9页
Smart Power
基金
国家自然科学基金资助项目(62101362)。
关键词
高比例
聚合等效
GPU
快速仿真
high proportion
polymerization equivalence
GPU
fast simulation
作者简介
路学刚(1989),男,云南昭通人,硕士研究生,高级工程师,主要工作及研究方向为数字化智能化技术在电网运行与控制中的研究与应用。
