Electric Drives

Block diagram

💡 Double-click a block (or a label such as ω*, T_L) to edit its parameters. In every graph: drag a rectangle to zoom, double-click to restore.

Linear analysis small-signal model of the selected structure and tuning

Step response

asymptotesDynamic stiffness |D(jω)| = |T_L/Δω|

Pole–zero map persistent

Frequency response (magnitude)

Time simulation full electromechanical model, saturations and anti-windup active

Live scope real-time simulation of the selected structure · change the setpoint and apply / remove the load while it runs

Live scope – setpoint, speed, current, voltage and torque

All the gains, limits, anti-windup, actuators, pre-filter and plant deviations of the panels on the left act immediately on the running system. Dotted vertical lines mark setpoint and load commands.

Block diagram Values: onPNGHide

Linear analysis small-signal model of the selected structure and tuningHide

Step response reference + load stepreference stepdisturbance step

asymptotesDynamic stiffness |D(jω)| = |TL/Δω|

Pole–zero map persistent clear dominant polesfit allradius…

Frequency response (magnitude)

Time simulation full electromechanical model, saturations and anti-windup activeHide

Live scope real-time simulation of the selected structure · change the setpoint and apply / remove the load while it runs⚡ Auto-set⏸ Pause↺ Restart from restHide

Live scope – setpoint, speed, current, voltage and torque

Equivalent circuit PNG

Electromagnetic torque in steady state, Te(ω)

Starting resistor design staged rheostat – resistors are cut out when the current falls to I₂

Operating point steady-state torque–speed characteristics

Torque–speed

Armature current–speed

Operating speed

Operating current

Scope speed and armature current vs. time · mechanical (1/(Js+B)) and, optionally, armature (La) dynamics⚡ Auto-setDefault scale⏻ Start motor⏸ Pause↺ Restart from standstill

Scope – speed and armature current

Equivalent circuit PNG

Torque in steady state – Thévenin equivalent

Operating points

Torque–speed

Line current–speed

Power factor–speed

Operating speed

Scope simplified: mechanical dynamics only, 1/(Js+B), currents rebuilt from the steady-state phasors · complete: dq (Park) model with the electromagnetic transients · selectable below⚡ Auto-setDefault scale⏻ Start motor⏸ Pause↺ Restart from standstill

Scope – speed and line current

Three-phase line currents (reconstructed from the operating point)Stator currents: on Voltages: off Rotor currents: off ⚡ Auto-set

Converter circuit PNG

Operating point from the time-domain simulation (steady state) and the average-value model

Waveforms in steady state time-domain simulation with ideal switches · dotted lines: firing instant of T1 and end of the commutationHide

Line voltages: source and bridge terminals

Supply currents

Output voltage vd

Output current id⚡ Auto-set

Voltage across thyristor T1

Current in thyristor T1

Operating curves average-value model of the bridge · marks: the simulated operating pointHide

Average output voltage vs firing angle

Output voltage vs output current (control characteristics)

Commutation overlap angle vs firing angle

Power factor vs firing angle

Power vs firing angle

Scope real-time simulation of the bridge · change α, the load and the trigger while it runs⚡ Auto-set⏸ Pause↺ RestartHide

Scope – voltages, currents and motor

Converter circuit PNG

Operating point steady state of the switching-level simulation

Inverter output PWM generation, pole and line voltages, load current and spectraHide

Carrier and reference

Pole voltages

Output voltage

Load current

Spectrum of the output line voltage

Spectrum of the load current

DC link capacitor voltage(s) and currentsHide

DC-link voltage

DC-link currents

Rectifier input mains voltage and currentHide

Mains current

Spectrum of the mains current

Scope real-time switching simulation⚡ Auto-set⏸ Pause↺ RestartHide

Scope – output, DC link, rectifier input and machine

Block diagram

Linear analysis small-signal model of the selected structure and tuning

Step response

asymptotesDynamic stiffness |D(jω)| = |T_L/Δω|

Pole–zero map persistent

Time simulation full electromechanical model, saturations and anti-windup active

Live scope real-time simulation of the selected structure · change the setpoint and apply / remove the load while it runs

Equivalent circuit

Electromagnetic torque in steady state, T_e(ω)

Scope speed and armature current vs. time · mechanical (1/(Js+B)) and, optionally, armature (L_a) dynamics

Equivalent circuit

Scope simplified: mechanical dynamics only, 1/(Js+B), currents rebuilt from the steady-state phasors · complete: dq (Park) model with the electromagnetic transients · selectable below

Three-phase line currents (reconstructed from the operating point)

Converter circuit

Waveforms in steady state time-domain simulation with ideal switches · dotted lines: firing instant of T1 and end of the commutation

Output voltage v_d

Output current i_d

Operating curves average-value model of the bridge · marks: the simulated operating point

Scope real-time simulation of the bridge · change α, the load and the trigger while it runs

Converter circuit

Inverter output PWM generation, pole and line voltages, load current and spectra

DC link capacitor voltage(s) and currents

Rectifier input mains voltage and current

Scope real-time switching simulation