摘要
为了精确地分析锦苏特高压直流接入后江苏电网,特别是直流换流站附近苏南电网的运行情况,在2013年江苏电网预计夏高负荷的基础上,基于电力系统全数字实时仿真平台(ADPSS)搭建了锦苏特高压直流系统的电磁暂态模型和江苏电网其余部分的机电模型。利用搭建的机电—电磁混合模型进行了特高压直流接入的江苏电网稳态仿真验证。在双极闭锁情况下对比了采用纯机电模型和机电—电磁混合模型的暂态仿真结果。仿真结果表明:机电—电磁混合模型能够有效地反映锦苏特高压直流输电系统的电磁暂态特性,适合于研究直流系统中十分复杂快速的暂态过程。混合仿真模型为研究锦苏直流接入对江苏电网受端系统稳定性的影响奠定了基础。
In order to analyze the influence of Ultra High Voltage Direct Current （UHDVC） power transmission accessing from Jinping to southern Jiangsu on Jiangsu power grid accurately, especially the operation of the southern Jiangsu power grid nearby Tongli converter station, based on predicted summer peak data of Jiangsu power grid for the year 2013, the electromagnetic transient model of the DC transmission from Jingpin to southern Jiangsu and the electromechanical model of remaining Jiangsu power grid was built by Advanced Digital Power System Simulator （ADPSS）. The steady-state of Jiangsu power grid with UHDVC accessing was verified using the electromechanical-electromagnetic hybrid simulation model. The transient simulation results of using the electromechanical-electromagnetic hybrid model and the pure electromechanical model were compared in the case of bipolar blocking. Simulation results show that the hybrid model the UHVDC transmission system＇s operating characteristic from Jingpin to southern Jiangsu can be reflected effectively, it＇s suitable for researching the complex and fast transient process in the DC system. The hybrid simulation model lay the foundation for the study of impacts of UHDVC power transmission accessing from Jinping to southern Jiangsu on stability of receiving-end system in Jiangsu power grid.
出处
《高压电器》
CAS
CSCD
北大核心
2013年第10期20-25,共6页
High Voltage Apparatus
基金
国家自然科学基金项目(61174038
61203129)~~
关键词
特高压直流
电力系统全数字实时仿真装置
机电-电磁混合模型
纯机电模型
ultra high voltage direct current （UHDVC）
advanced digital power system simulator （ADPSS）
electromechanical-electromagnetic hybrid model
pure electromechanical model
