Power quality monitoring and evaluation system

for microgrid based on LabVIEW

 

SHEN Hui1, XIE Zhiyun2, YU Zhiwen1, FANG Xiaohui2, WENG Guoqing2

(1. Jianxing Honors College, Zhejiang University of Technology, Hangzhou 310023, China;

2. College of Information Engineering, Zhejiang University of Technology, Hangzhou 310023, China)

 

Abstract: Aiming at lack of the power quality realtime monitoring and the software of the comprehensive evaluation system for microgrid, a reasonable method of power quality comprehensive evaluation was studied, a system for power quality monitoring and comprehensive evaluation based on LabVIEW was designed. Firstly, based on an analytic hierarchy process (AHP) method and grey theory, the power quality evaluation system was proposed. Then, based on LabVIEW, the system software for power quality monitoring, the comprehensive evaluation and intelligent management for microgrid were developed by using hybrid programming method with LabVIEW and Matlab Script programming languages. It was simulated by the microgrid model. The results indicate that the system software can be realtime monitoring of microgrid,recorded wave function with alarm and make a reasonable assessment of the integrated microgrid power quality,generate a summary report for the results. A good prospect for engineering application in microgrid projects is shown.

Key words: microgrid; power quality; comprehensive evaluation; LabVIEW