Power Quality Improvement Using DVR | Science Publications

American Journal of Applied Sciences

B. Ferdi¹  C. Benachaiba¹ 

关键词: Dynamic Voltage Restorer (DVR);    voltage sags;    voltage swells;    power quality;   

DOI  :  10.3844/ajassp.2009.396.400

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

Voltage sags and swells in the medium and low voltage distribution grid are considered to be the most frequent type of power quality problems based on recent power quality studies. Their impact on sensitive loads is severe. The impact ranges from load disruptions to substantial economic losses up to millions of dollars. Different solutions have been developed to protect sensitive loads against such disturbances but the DVR is considered to be the most efficient and effective solution. Its appeal includes lower cost, smaller size and its dynamic response to the disturbance. This research described DVR principles and voltage restoration methods for balanced and/or unbalanced voltage sags and swells in a distribution system. Simulation results were presented to illustrate and understand the performances of DVR under voltage sags/swells conditions.

【 授权许可】

Unknown