Added value of local supervision in distributed inverter system

摘要

The reliability of AC source in the telecommunication field has greatly increased thanks to the redundancy principle implemented in digitally controlled inverters running in a parallel system. To improve the safety of such system, well supervision architecture has to be elaborated around the inverter system. An inverter supervisor (IS) will be presented. It can be integrated in a system in 2 different ways: either as a local main supervision unit for a simple system or as an interface mechanism ina more complex installation. The two approaches will be discussed.