Online Loss Calculation and Optimization of an M3C-Driven Externally Excited SM

Abstract

Pumped-hydro storage power plants are a truly renewable solution for large grid connected energy storage. The evolution towards variable speed operation increases their flexibility and efficiency and ensures their relevance on a changing energy market. Exploiting all possible degrees of freedom in the machine operation as to maximize efficiency of the overall system allows to increase the profitability of the plant. Doing so in realtime on the same hardware-in-the-loop platform used for the validation of the control algorithm saves time and resources. The results presented here are collected from a real-time hardwarein-the-loop platform containing an industrial control platform. This paper presents the most energy efficient steady-state and transient operation of an externally excited synchronous machine driven by a matrix modular multilevel converter for a pumped hydro storage power plant application. To this end this work presents a real-time compatible converter loss calculation applicable on the simplified implementation of the converter without need to model the individual switches.

A Dual-Channel Gate Driver Design with Active Voltage Balancing Circuit for Series Connection of SiC MOSFETs

“…The growing prominence of power electronics is increasingly evident in many industrial applications, particularly with the promotion and advancement of renewable energy technologies aimed for a low carbon society [1,2]. Serving as a crucial and decisive factor influencing the progress of power electronics technology, there is a continuous pursuit of breakthroughs and advancements in power electronics devices, striving for higher voltage and power ratings.…”