Simulation with ideal switch models combined with measured loss data provides a good estimate of power loss

Evaluation of the Reactive Power Support Capability and Associated Technical Costs of Photovoltaic Farms’ Operation

“…The numerical evaluation of the converter losses for a wide range of operating points using a detailed switch model proved to be unfeasible due to the requirements of simulation steps in the order of nanoseconds. Therefore, alternative models were investigated [36,[41][42][43][44][45]. The evaluation of these losses was carried out using the look-up table approach proposed by [45] with the same approximation as [28][29][30]: the junction temperature was assumed constant at 125 • C, so that only manufacturer data are considered instead of experimental data.…”

Development of Physics-based Models and Design Optimization of Power Electronic Conversion Systems

“…The field vectors allow identifying critical chip placements and substrate layouts, where strong magnetic fields might induce unwanted voltages in the gate signal loops. Transient simulations using extracted impedance matrices and accurate IGBT and diode models show how these induced voltages affect the dynamic current sharing [7], [15], [40][41][42].…”

“…This will not slow down the simulation speed because the ideal switching action occurs within one numerical time step, the simulation will remain numerically stable and the accuracy will be very high. Such a simple loss counter scheme is described in detail in references [11], [32], [40][41][42].…”

Technical cost of operating a PV installation as a STATCOM during nightime.

“…Indeed, many works are dealing with the power losses of the switches of VSC [16,17,18,19,20,21], the power losses of the interface reactor, that is required for the good operation and control of the VSC, are either simply neglected [22,23], or roughly included using a percentage of the active power [24]. Similarly the losses of the transformer and filter are usually not included.…”

“…An electrothermal model has been proposed by [20] for evaluation of heat generation by VSC and performance evaluation of heat sinks. A look-up table for power losses estimation was proposed by [21] and results were used for thermal performance evaluation as well.…”