Analysis of simultaneous power quality issues compensation capabilities of custom power devices and their control systems

To improve the consistency and efficiency of power distribution networks, engineers have developed specialized power electronics devices called Custom Power Devices (CPDs). In the distribution electric power system, it is entirely possible for multiple power quality issues to co-occur, such as voltage swells/sags happening alongside current harmonics, voltage flicker, unbalanced load current, and reactive power imbalance. This creating a complex situation where several disturbances affect the power supply at the same time, this cause severe impacts on connected equipments. This paper analyze custom power devices like D-statcom, DVR, and their power quality compensation capability even if more power quality issues co-occur. Moreover, power quality control systems are highly complex and will be designed for specific power quality problems. This paper also discusses the different custom power device’s control system and its simultaneous power quality detection capability.