|
|
|
| The Simulation and Realization of Two-Phase Voltage Construction in the Single Phase PLL |
| Shen Wen, Huang Shoudao, Liu Wang, Huang Sheng, Liao Wu |
| College of Electrical and Information Engineering Hunan University Changsha 410082 China |
|
|
|
|
Abstract The phase and frequency information of the grid voltage is of great importance to the single phase PWM rectifier. The traditional approach obtaining it by zero-cross detector is not satisfactory. The PLL based on the instantaneous power theory has a better static and dynamic performance, but it needs to construct another voltage through the grid voltage. However, the method of integral, differential time delay is difficult to realize by program and not ideal. This paper introduced a product to sum formula method to construct another voltage after comparing different methods of PLL constitute and analyzed the principle of the two-phase construction and the instantaneous power theory. moreover, by simulation and experience, it proved that this method is available in programming and could be used in the engineering application.
|
|
Received: 20 September 2012
Published: 12 December 2013
|
|
|
|
|
|
[1] 任碧莹, 钟彦儒, 孙向东, 等. 基于有限冲击响应滤波器线性相移控制的单相系统数字锁相环[J]. 电工技术学报, 2008, 8(8): 121-122.
Ren Biying, Zhong Yanru, Sun Xiangdong, et al. A digital phase-locked loop based on the linear phase-shifted control implemented by a finite impulse response filter for a single phase power system[J]. Transactions of China Electrotechnical Society, 2008, 8(8): 121-122.
[2] 陈顺, 黄守道, 王德强, 等. 基于改进瞬时无功理论的单相锁相环[J]. 电力电子技术, 2009, 10(43): 89-90.
Chen Shun, Huang Shoudao, Wang Deqiang, et al. Single-phase phase-locked loop based on modified instantaneous reactive power theory[J]. Power Electronics, 2009, 10(43): 89-90.
[3] 李明, 王跃, 方维, 等. 无正交虚拟信号生成的单相DQ锁相环研究[J]. 中国电机工程学报, 2011, 5(31): 27-28.
Li Ming, Wang Yue, Fang Wei, et al. Research on single-phase DQ phase-locked loop without imaginary signal generation[J]. Proceedings of the CSEE, 2011, 5(31): 27-28.
[4] 龚锦霞, 解大, 张延迟. 三相数字锁相环的原理及性能[J]. 电工技术学报, 2009, 10(24): 94-95.
Gong Jinxia, Xie Da, Zhang Yanchi. Principle and performance of the three-phase digital phase-locked loop[J]. Transactions of China Electrotechnical Society, 2009, 10(24): 94-95.
[5] Sergio Augusto Oliveira Da Silva, Rhodolfo Novochadlo, Rodrigo Augusto Modesto. Single-phase PLL structure using modified p-q theory for utility connected systems[J]. IEEE Transactions on Industry Applications, 2008: 4706-4707.
[6] 庞浩, 俎云霄, 王赞基. 一种新型的全数字锁相环[J]. 中国电机工程学报, 2003, 2(23): 37-39.
Pang Hao, Zu YunXiao, Wang Zanji. A new design of all digital phase-locked loop[J], Proceedings of the CSEE, 2003, 2(23): 37-39.
[7] 黄坚. 自动控制原理及应用[M]. 北京：高等教育出版社, 2004. |
|
|
|
2013, Vol. 28 
