Power Quality Enhancement Using Custom Power Devices considers the structure, control and performance of series compensating DVR, the shunt DSTATCOM and the shunt with series UPQC for power quality improvement in electricity distribution. Also addressed are other power electronic devices for improving power quality in Solid State Transfer Switches and Fault Current Limiters. Applications for these technologies as they relate to compensating busses supplied by a weak line and for distributed generation connections in rural networks, are included. In depth treatment of inverters to achieve voltage support, voltage balancing, harmonic suppression and transient suppression in realistic network environments are also covered. New material on the potential for shunt and series compensation which emphasizes the importance of control design has been introduced.

This project work involves the investigation of power quality issues facing electric distribution utilities today. It contains research from various references to define power quality and summarize its effect on electric distribution utilities, end-user equipment manufacturers, and power consumers connected to the distribution system. The project also contains a power quality enhancement case study of an existing load site with a specific power quality concern. The case study includes a problem definition, an analytical summary of the situation, and a review of power quality enhancement solutions. The case study reviews and evaluates the effectiveness of several power quality enhancement solutions. A variety of zero sequence harmonic trap filters applied in different configurations are simulated in the analysis. The solutions are ranked on effectiveness to enhance power quality based on an analytical simulation using symmetrical component theory. The performance measured in the case study are neutral current reduction, neutral to ground voltage reduction, single line to ground fault current rise, and filter load duty. The solution performance measures are prioritized and the solution providing the best overall results is recommended. (Abstract shortened by UMI.).