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| 两电平和三电平VSC-HVDC系统在输电环节效率的分析与比较 | |
| 引用本文： | 宋唯宁,王宇拓,王林川,李学良,金媛媛.两电平和三电平VSC-HVDC系统在输电环节效率的分析与比较[J].电测与仪表,2015,52(4):30-35. |
| 作者姓名： | 宋唯宁 王宇拓 王林川 李学良 金媛媛 |
| 作者单位： | 1. 东北电力大学,吉林吉林,132012 2. 东北电力设计院,长春,130021 3. 冀北香河供电有限公司,河北廊坊,065400 4. 浙江台州供电公司,浙江台州,317000 |
| 摘 要： | 为了计算基于两电平和三电平的电压源换流器在VSC-HVDC系统里呈现的链路效率,我们使用平均根和均方根的方法来计算电压源换流器的转换电流的平方来测量换流器(传导和开关损耗)的转换损耗。剩余的功率损失(直流电缆侧由于I2R产生的传输损耗,耦合变压器的损耗和交流侧谐波滤波器的损耗)用常规熟知的方法进行评价。得到的结果我们通过数字仿真进行分析和验证。 |
| 关 键 词： | 电压源换流器 两电平换流器 三电平换流器 输电效率 转换损耗 |
| 收稿时间： | 2014/4/16 0:00:00 |
| 修稿时间： | 2014/5/4 0:00:00 |
Analytical efficiency evaluation of two and three level VSC-HVDC transmission links |
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| songweining,wangyutuo,wanglinchuan,lixueliang and jinyuanyuan.Analytical efficiency evaluation of two and three level VSC-HVDC transmission links[J].Electrical Measurement & Instrumentation,2015,52(4):30-35. | |
| Authors: | songweining wangyutuo wanglinchuan lixueliang and jinyuanyuan |
| Affiliation: | Song Weining;Wang Yutuo;Wang Linchuan;Li Xueliang;Jin Yuanyuan;North East Dian Li University;North East Power Design Institute;State Grid Jibei Xianghe Power Supply;State Grid Zhejiang Taizhou Power Supply; |
| Abstract: | An analytical method to calculate the efficiency of VSC-HVDC links based on two-level and three-level VSCs is presented. The method uses the average and root mean square of the VSC converter current to estimate the conversion losses in the converters (conduction and switching losses). The remaining power losses (DC cable transmission losses due to , the losses in the coupling transformer, and AC harmonic filter losses) are evaluated using conventional well-known methods. Results obtained analytically are confirmed by digital simulations. |
| Keywords: | VSC two-level VSC three-level VSC transmission efficient conversion losses |
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