Questions about the switching losses of a MOSFET
Using Simulink for circuit simulation of a PMSM system, with a focus on MOSFET losses in the inverter circuit.
MOSFET (Ideal, Switching), PS signal controlled. The thermal port is connected to a 25°C constant temperature source.
According to the simulation results, three-phase currents, motor torque and speed are consistent with the expected values.
Q1. The MOSFET switching losses exist only during positive current, and they disappear during negative current. Should switching losses exist only during positive current?
Q2. The fixed switch loss value set in the “MOSFET (Ideal, Switching)” module is 3e-5 J. However, the simulation results show fluctuations around this value with respect to the Id current. What is the specific relationship between the fixed switch loss value and the fluctuating simulation resultsUsing Simulink for circuit simulation of a PMSM system, with a focus on MOSFET losses in the inverter circuit.
MOSFET (Ideal, Switching), PS signal controlled. The thermal port is connected to a 25°C constant temperature source.
According to the simulation results, three-phase currents, motor torque and speed are consistent with the expected values.
Q1. The MOSFET switching losses exist only during positive current, and they disappear during negative current. Should switching losses exist only during positive current?
Q2. The fixed switch loss value set in the “MOSFET (Ideal, Switching)” module is 3e-5 J. However, the simulation results show fluctuations around this value with respect to the Id current. What is the specific relationship between the fixed switch loss value and the fluctuating simulation results Using Simulink for circuit simulation of a PMSM system, with a focus on MOSFET losses in the inverter circuit.
MOSFET (Ideal, Switching), PS signal controlled. The thermal port is connected to a 25°C constant temperature source.
According to the simulation results, three-phase currents, motor torque and speed are consistent with the expected values.
Q1. The MOSFET switching losses exist only during positive current, and they disappear during negative current. Should switching losses exist only during positive current?
Q2. The fixed switch loss value set in the “MOSFET (Ideal, Switching)” module is 3e-5 J. However, the simulation results show fluctuations around this value with respect to the Id current. What is the specific relationship between the fixed switch loss value and the fluctuating simulation results simscape, simulink, mosfet, pmsm MATLAB Answers — New Questions