The Operational Performance and Benefits of an MVDC Device Integrated within a 33kV Distribution Network

Abstract

Western Power Distribution was funded through the Low Carbon Networks Fund to deliver an innovation project, Network Equilibrium. A key technical method of this project was a 33kV AC-DC-AC power electronics based “Flexible Power Link”. This device enabled two previously separate and distinct networks to operate in parallel to enable load and generation on the system to be effectively managed across the complete integrated network, mitigating traditional network reinforcement requirements for new load and generation connections. This management is carried out through the real-time optimisation of both real and reactive power on either side of the device. The performance and benefits of integrating an MVDC device in to an otherwise AC system will be discussed.