Currently, many electric utilities in the world are considering approaches to offering premium power to their customers. Premium power park (PPP) has emerged as one of the approaches, designed to compensate for voltage variations and to meet customer power quality needs. To protect sensitive loads, premium grade power should be provided for such loads by using a more-reliable distribution configuration and/or a combination of state-of-the-art custom power devices (CPDs). The objectives of this book are to evaluate and identify premium power options to be offered to customers by developing...

The generation intermittency resultant from a large photovoltaic (PV) system connected to the power network introduces many challenges and impacts in terms of power quality, stability, and reliability of the power network. There is a need to reduce or minimise the PV generation intermittency in order to integrate more PV generators and thus allows larger penetration of PV-based renewable resources to the utility network. In this book, storage technology has been used to provide solutions for the problems related to integrating the intermittent PV generation to the utility grid. The heuristic...

A comprehensive study is made to compare the harmonic distortion produced by the different types and number of distributed generation (DG) units in a low voltage distribution system. Here, three types of DG units are considered, namely, a mini hydro power, wind turbine doubly fed induction generator and photovoltaic system. To determine the maximum allowable penetration level of inverter based DG, harmonic resonance phenomena and harmonic distortion limits are also considered. To control harmonic propagation in a distribution system with DG units, an appropriate planning of DG units is...

One of the main technical challenges of an active distribution network is to maintain an acceptable voltage level in the system. This has initiated efforts in using various voltage control strategies to regulate the network voltage profile so that the voltage is maintained at its allowable voltage limits of 0.95 per unit to 1.05 per unit. A number of voltage control methods have been applied to solve voltage control problems associated with the connection of DGs in a distribution system. These voltage control strategies may be classified as decentralised or distributed and centralised or...