Control strategy of high power multiple connection dc power(PDF)
[ISSN:1007-449X/CN:23-1 408/TM]
- Issue:
- 2016年05
- Page:
- 53-59
- Research Field:
- Publishing date:
Info
- Title:
- Control strategy of high power multiple connection dc power
- Author(s):
- JIAO Wen-liang1; 2 ; WANG Xu-dong1 ; NA Ｒi-sha1 ; ZHOU Kai1 ; SUI Xin1
- ( 1． School of Electrical and Engineering，Harbin University of Science and Technology，Harbin 150080，China; 2． School of Electrical and Control，Heilongjiang University of Science and Technology ，Harbin 150027，China)
- Keywords:
- power factor; multiple connection; sequential control; the harmonic
- PACS:
- TM 921
- DOI:
- 10． 15938 / j． emc． 2016． 05． 008
- Abstract:
- High power DC speed control power supply which can improve the power factor is a kind of multiple connection rectifier using sequential control，but it brings the grid large harmonic which cannot be ignored in shallow control． Wave and theory of the input side current，harmonic，total factor of harmon-ic distortion，fundamental wave factor and power factor were contrastively analyzed． Moreover，the best control strategy of reducing harmonic was also proposed through the calculating formula． For the control of high power multiple connection rectifier，the best control strategy is to use sequential control in depth control and synchronous control ( parallel control) in shallow control which proved by simulation and ex-periment． In this method，harmonic is greatly reduced but the power factor is the same．
Last Update: 2016-06-26