| 向无源网络供电的VSC-HVDC调节特性研究 |
| |
| 引用本文： | 赵成勇,马国鹏,李广凯.向无源网络供电的VSC-HVDC调节特性研究[J].华北电力大学学报,2008,35(6). |
| |
| 作者姓名： | 赵成勇 马国鹏 李广凯 |
| |
| 作者单位： | 华北电力大学,电力系统保护与动态安全监控教育部重点实验室,河北,保定,071003 |
| |
| 基金项目： | 国家自然科学基金，高等学校学科创新引智计划，教育部长江学者和创新团队发展计划 |
| |
| 摘 要： | 交流系统中,有功主要影响频率,无功主要影响电压,VSC-HVDC并非如此。对于VSC-HVDC向无源网络供电的情况,无功负荷或有功负荷变化时,对频率无任何影响;而有功负荷变化时,引起电压的改变。由PWM控制的基本原理得出频率不变特性,从定性和定量两方面分析了有功对电压的影响,定性分析了无功对电压的影响。并分析了VSC-HVDC线路和交流输电线路向无源网络供电的本质区别。PSCAD/EMTDC仿真结果验证了结论的正确性。
|
| 关 键 词： | 高压直流输电 电压源/换流器 脉宽调制 调节特性 |
Research on characteristics of regulation of VSC-HVDC supplying power to passive network |
| |
| ZHAO Cheng-yong,MA Guo-peng,LI Guang-kai.Research on characteristics of regulation of VSC-HVDC supplying power to passive network[J].Journal of North China Electric Power University,2008,35(6). |
| |
| Authors: | ZHAO Cheng-yong MA Guo-peng LI Guang-kai |
| |
| Abstract: | VSC-HVDC is not the case that active power mainly affects frequency and reactive power mainly affects voltage in AC system.In transmitting power to passive network via VSC-HVDC system circumstance,without any impact on the frequency does the load variation of active power or reactive power changes;the load variation of active power causes the voltage changes.Based on the analysis of the basic principles of PWM control,the constant frequency was achieved;the impact of active power on voltage was analyzed from both qualitative and quantitative;the impact of reactive power on voltage was analyzed qualitatively.The essential difference between VSC-HVDC and AC lines transmitting power to passive network was analyzed.The simulation results performed on PSCAD/EMTDC show that the above conclusion is correct. |
| |
| Keywords: | HVDC VSC PWM characteristic of regulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
