Power Quality Enhancement Using Custom Power De... May 2026

It injects a synchronized voltage into the distribution feeder to maintain a constant load voltage during source disturbances.

Custom power devices are broadly categorized into two types based on their function in the distribution network: Device Examples Primary Function

DSTATCOM, Dynamic Voltage Restorer (DVR), Unified Power Quality Conditioner (UPQC) power quality enhancement using custom power de...

The UPQC is considered the most powerful CPD as it combines both converters via a common DC link.

Available with or without energy storage; storage-based models use batteries or capacitors to provide the necessary active power for compensation. 2. Distribution Static Compensator (DSTATCOM) It injects a synchronized voltage into the distribution

DSTATCOM is a voltage source inverter (VSI) that maintains bus voltage at required levels.

are a new generation of power electronic controllers designed for medium to low voltage levels (typically 1 KV through 32 KV) to ensure high-quality power delivery. Unlike Flexible AC Transmission Systems (FACTS) which focus on high-voltage transmission, CPDs are specifically applied at the distribution level to protect sensitive consumer equipment. Classification of Custom Power Devices Unlike Flexible AC Transmission Systems (FACTS) which focus

Active filtering, load balancing, and voltage regulation (sag/swell). Major Compensating Devices 1. Dynamic Voltage Restorer (DVR)