山东电力技术2018，Vol.45Issue(4)：36-43,8.
改进型解耦自适应复数滤波器锁相环
Improved Crossing-decoupling Frequency-adaptive Complex Filter PLL
谢永强 1朱玉振 2翟晓超 3姜波 1李璨1
作者信息
- 1. 国网山东省电力公司检修公司淄博运维分部,山东 淄博 255000
- 2. 国网山东省电力公司菏泽供电公司,山东 菏泽 274012
- 3. 山东网源电力工程有限公司,山东 济南 250000
- 折叠
摘要
Abstract
A method for accurately locking the frequency and phase of the positive sequence voltage of the fundamental wave is proposed in order to eliminate the influence of unbalanced grid environment, such as the unbalanced three-phase voltage, frequency mutation, phase mutation and injection harmonics, on the traditional phase locking method. The basic structure of the phase locked loop (αβ-PLL) of the stationary coordinate system is introduced, and the basic principle of the work of the phase locked loop in the static coordinate system is analyzed. Based on this, the positive and negative first-order complex filter is introduced which has a quality of selective, by improving the filter structure and designing its parameters reasonably, the positive-sequence fundamental voltage is detected accurately under the αβ coordinate system. The simulation result shows that, this method can make the frequency and phase of positive-sequence fundamental voltage be locked faster and more accurately.关键词
静止坐标系锁相环/不平衡电压/一阶复数滤波器/基波正序电压/解耦Key words
αβ-PLL/unbalanced voltage/first-order complex filter/fundamental positive-sequence voltage/decoupling分类
信息技术与安全科学引用本文复制引用
谢永强,朱玉振,翟晓超,姜波,李璨..改进型解耦自适应复数滤波器锁相环[J].山东电力技术,2018,45(4):36-43,8.
