| 引用本文: | 陈娟,郑建勇,丁祖军,曾伟,康静,袁涛.p-q-r法与FBD法在三相四线制系统谐波电流检测中的对比[J].电力自动化设备,2007,27(11):30-33 |
| .Comparison of harmonic detection in three-phase four-wire system between p-q-r method and FBD method[J].Electric Power Automation Equipment,2007,27(11):30-33 |
|
|
| 摘要: |
| 谐波电流检测是使用并联有源滤波器解决电网谐波污染的关键环节。对当今流行的三相四线制系统中谐波电流检测方法:p-q-r法、FBD法进行了深入分析。就系统电压对称和发生畸变2种情况,讨论了各自在谐波电流检测准确性、消除中线电流有效性、计算量、实时性等方面的检测性能,最后采用PSCAD/EMTDC仿真软件加以验证。结果表明,2种检测方法在准确性方面基本相同,FBD法电路简单,实时性较强;而p-q-r法能够独立消除中线电流,补偿灵活性好。 |
| 关键词: 三相四线制,谐波检测,电压畸变,p-q-r法,FBD法 |
| DOI： |
| 分类号:TM711 |
| 基金项目: |
|
| Comparison of harmonic detection in three-phase four-wire system between p-q-r method and FBD method |
|
CHEN Juan ZHENG Jian-yong DING Zu-jun ZENG Wei KANG Jing YUAN Tao
|
| Abstract: |
| Harmonic detection is the important part of the active power filter used in power system for harmonic pollution control.The p-q-r method and FBD method,two harmonic detection methods used widely in three-phase four-wire system,are compared in correctness,effectiveness of neutral-line current elimination,calculation load and real-time performance for both symmetric and distorted system voltages.Results of PSCAD / EMTDC simulation show that,two methods are nearly same in correctness,FBD method has simple circuit and better real-time performance while p-q-r method is better in compensation flexibility and independent elimination of neutral-line current. |
| Key words: three-phase four-wire system,harmonic detection,voltage distortion,p-q-r method,FBD method |
