| 具有12脉动换流桥的直流输电系统非特征谐波计算研究 |
| |
| 引用本文： | 王铭诚,宣伟良. 具有12脉动换流桥的直流输电系统非特征谐波计算研究[J]. 华北电力大学学报(自然科学版), 1986, 0(1) |
| |
| 作者姓名： | 王铭诚 宣伟良 |
| |
| 作者单位： | 华北电力学院北京研究生部，华北电力学院北京研究生部 |
| |
| 摘 要： | 本文建立了用于计算12脉动HVDC(高压直流)系统非特征谐波的新方法。该方法将整流站、直流线路和逆变站作为一个整体统一考虑。该方法通过模拟HVDC系统的运行工况,求解状态方程及输出方程,得到各量的时域解,然后采用快速付氏变换(FFT)技术而得到谐波分析结果。本方法可用于考虑12脉动HVDC系统在各种不完善条件下的谐波计算分析,包括:交流系统电势和阻抗的不平衡;换流变压器阻抗的不平衡,触发脉冲具有随机误差等。作为其特例,本方法同样可以用于特征谐波的计算和分析。
|
RESEARCH ON NONCHARACTERISTIC HARMONIC CALCULATIONS IN HVDC SYSTEM WITH 12—PULSE CONVERTORS |
| |
| Abstract: | A new method for calculating noncharacteristic harmonics in 12-pulse HVDC system is presented in this paper. The rectifier, DC transmission line and invertor are considered as a whole. The kernel of the method is that the time domain solutions of all variables are found by simulating 4-5 working states of HVDC system, then the results of harmonic analysis are obtained by the Fast Fourior Transformation(FFT) algorithm. The method can be used to analyse the harmonics of HVDC system which operates at irregular conditions, including the unbalanced voltages and/or impedances of AC system, the unbalanced transformer impedances and random errors in trigger pulses, etc…. As a special case, the presented method can also be used for the calculation and analysis of the characteristic harmonics. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
|
