计及直流控制特性的直流系统等值模型及其谐波计算

发布时间：2018-06-13 03:10

本文选题：高压直流输电 + 系统模型　；参考：《电力系统自动化》2014年19期

【摘要】：准确的直流系统模型是交直流系统故障分析和谐波计算的基础。文中在换流器开关函数模型的基础上,结合直流控制系统的故障响应特性,建立了可与交流系统直接接口的适用于交直流系统故障分析和谐波计算的直流系统等值模型;结合交流系统等值谐波网络,提出了一种交流电网故障时的高压直流输电系统谐波分析计算方法。将所提方法应用于国际大电网会议高压直流输电(CIGRE HVDC)系统标准模型和贵广Ⅱ回高压直流输电系统详细模型的谐波计算,并与PSCAD/EMTDC软件所得数字仿真结果进行比较,表明所提模型和方法准确、有效,为交直流输电系统的谐波抑制、滤波装置的配置和继电保护的整定配合等提供了定量分析依据。
[Abstract]:The accurate DC system model is the basis of the fault analysis of AC and DC system. On the basis of the switch function model of the converter and the fault response characteristic of the DC control system, a DC system equivalent model which can directly interface with the AC system for the calculation of the fault analysis of the AC and DC system is established. Combined with the equivalent harmonic network of AC system, a harmonic analysis and calculation method for HVDC power transmission system with AC power grid failure is proposed. The proposed method is applied to the standard model of the CIGRE HVDC system and the harmonic calculation of the detailed model of the high voltage direct current transmission system, and with the PSCAD/EM The comparison of the digital simulation results obtained by the TDC software shows that the proposed model and method are accurate and effective. It provides a quantitative analysis basis for the harmonic suppression of AC and DC transmission systems, the configuration of the filter device and the setting coordination of relay protection.
【作者单位】：华南理工大学电力学院;中国南方电网超高压输电公司检修试验中心;
【基金】：国家自然科学基金资助项目(51007024,50977032) 中央高校基本科研业务费专项资金资助项目(2013ZZ028)~~
【分类号】：TM721.1

【相似文献】