Current behaviour
Inspect final-cycle phase and dq currents with requested and achieved operating-point measures.
EDEPT-EDT 2026.1.0
See what is happening inside the electric drive.
A Windows engineering application for studying PMSM operating-point behaviour across the electric machine, switching inverter and current controller using compatible Motor-CAD-derived electromagnetic maps.
PUBLIC LAUNCH
Try it free for 14 days.
Request a time-limited EDEPT-EDT evaluation entitlement. No payment details are required and the trial does not convert automatically to a paid subscription.
One trial per organisation, subject to eligibility. Trial access expires 14 days after activation. Start a new paid subscription by 23:59 BST on 31 August 2026 to receive the launch price.
Request free trial ↗FOUNDING-CUSTOMER PRICE£50per user seat / month
for the first 3 billing months
£250 per user seat per month thereafter, excluding VAT. Cancel before the next renewal. Limited to the first 20 paid seats. Terms apply.
Start subscription ↗Download switching-frequency case study ↓TECHNICAL TRAINING SESSION
EDEPT-EDT 2026.1.1 Technical Training — Electric Drivetrain Simulation
Presented by Devi Narayanan, EDDI AI Technical Tutor. Follow the complete engineering workflow from operating-point definition through current control, coordinate transformations, harmonics, phasors and animated space-vector interpretation.
ENGINEERING CAPABILITY
One operating point. Five connected views.
Define the case, run the switching simulation and examine summary, waveforms, harmonics, phasor and space-vector evidence in one interface.
Switching sensitivity
Apply the switching frequency entered in the interface and compare ripple and harmonic distribution.
Harmonic evidence
Review a linear-order spectrum and current THD through all resolvable orders up to order 200.
Voltage waveforms
Study phase and phase-to-phase inverter voltage behaviour and voltage-demand trends.
Coordinate frames
Connect phasor and alpha-beta views using the logged absolute electrical rotor angle.
Traceable runs
Retain a text diagnostic containing active inputs, map identity and selected outputs.
EXAMPLE SIMULATION OUTPUTS
Connected evidence from a typical EDEPT-EDT simulation.
These example plots show how one operating-point study can be interpreted across time-domain waveforms, harmonic content, phasor construction and absolute space-vector behaviour.
Phase and d-q currents
Final-cycle phase currents and their rotating-frame d-q components reveal tracking, ripple and waveform quality.
View full resolution ↗
Map-estimated torque waveform
The final-cycle torque trace exposes mean torque, switching-related variation and repeating electromagnetic structure.
View full resolution ↗
Current harmonic spectrum
Non-fundamental Phase-A current components make the dominant harmonic orders and their amplitudes directly visible.
View full resolution ↗
d-q voltage and flux-linkage build-up
Phasor construction connects back-EMF, inductive and resistive contributions to terminal voltage, current and flux linkage.
View full resolution ↗
Absolute α-β space vectors
Voltage, current, rotor flux, back-EMF and phase-voltage contributions are resolved against SPWM and SVPWM limits.
View full resolution ↗
Rotor-angle-synchronised currents
Phase and stationary-frame α-β currents are aligned to absolute rotor angle for time-domain and vector-domain interpretation.
View full resolution ↗Illustrative EDEPT-EDT outputs from a representative simulation. Numerical results depend on the selected e-machine map, operating point, controller settings, voltage assumptions and simulation configuration.
NEW PUBLIC CASE STUDY
See switching frequency change the evidence.
A neutral e-machine study covering five operating points from MTPA through field weakening to deep MTPV, simulated in EDEPT-EDT at 6 kHz, 10 kHz and 20 kHz.
- 15 traceable switching simulations
- Phase-current THD through harmonic order 200
- Requested-versus-achieved d-q current tracking
- Direct EDEPT-EDT waveform and harmonic GUI captures
Operating points are derived against a 400 V DC bus. An 800 V waveform-generation bus provides controller headroom for the switching-frequency comparison and is not presented as physical inverter feasibility.
Read the 18-page case study ↗DIRECT WORKFLOW
Inputs that remain connected to evidence.
- Enter demanded dq current, speed, physical DC voltage, switching frequency and simulation time.
- Select a compatible Motor-CAD-derived map.
- Run the switching simulation.
- Review connected electrical and map-estimated torque evidence.
- Retain the run diagnostic for comparison and review.
APPROPRIATE USE
EDEPT-EDT is an engineering investigation and comparison tool. Results depend on the supplied map, model assumptions, solver configuration and operating point. The 2026.1.0 release is not a safety-critical or certification-grade design authority and does not claim universal loss, thermal, durability or vehicle-range accuracy.
START THE ENGINEERING WORKFLOW
Bring switching behaviour into view.
Evaluate for 14 days with no payment and no automatic conversion, or review the initial charge, renewal date and later recurring price before subscribing.
Request 14-day free trial ↗