The medium voltage range covers two topologies: thyristor-based SVC and IGBT-based STATCOM. Both are used for reactive power compensation in heavy industry and utility networks.
Operating at voltage levels from 6 kV to 35 kV, these systems provide dynamic voltage regulation, flicker mitigation, power factor correction and harmonic compensation for arc furnaces, rolling mills, wind farms and transmission substations.
Thyristor-based SVC and IGBT-based STATCOM. Ranges below are per family.
TCR + TSC topology for heavy industrial loads, arc furnaces and wind farms.
IGBT voltage source converter for dynamic reactive power compensation. Faster than SVC, smaller footprint, 4-quadrant operation.
Large dynamic loads cause voltage fluctuation, flicker and power factor penalties. These are the load types the MV range is applied to.
Electric arc furnaces create extreme reactive power swings and voltage flicker requiring fast MV compensation.
Rolling mills and meltshops with large motor drives and highly dynamic load profiles at MV level.
Renewable energy plants requiring grid code compliance, voltage support and reactive power control.
Transmission and distribution substations requiring voltage regulation and power factor correction.
Voltage level, load type and the flicker or power factor problem are enough to start. Feasibility studies and on-site measurements are available.
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