Power quality trends in the transition to carbon-free electrical energy systems

Due to the accelerated shift towards a carbon-free electrical energy system, the power system is changing in terms of both planning and operation with an increasing integration of converter-interfaced renewable generation at all voltage levels. One area strongly affected by these changes is power quality where, if not managed correctly, it can result in equipment mis-operation, accelerated aging, tripping of plant, loss of production process, etc. Power quality is ultimately a customer-driven issue but failure to provide the adequate supply can also have negative impact on system operators, including customer complaints, reputational damage and financial liability.

Power systems globally are experiencing a transition towards decarbonisation of electricity production through large-scale…