SHE Designer
The first deterministic SHE solver that finds every viable solution in the design space and ranks them across five physical optimization objectives.
Selective Harmonic Elimination has been an industry standard for power-converter waveform synthesis for forty years, and every published method finds one solution and stops. SHE Designer treats the problem as a complete enumeration: it returns every viable switching-angle set, certifies each through a five-stage hardware-viability check, and lets the engineer choose the optimization target — total harmonic distortion, weighted THD, torque ripple, DC-link RMS stress, or flux-trajectory circularity.
Numbers, with a way to check them.
Every figure below is reproducible against an external comparator. The mechanism is proprietary; the results are not.
What the engine guarantees.
Properties, not mechanism. Outcomes, not implementation.
- 100% certification rate on production-grade configurations
- Solves N=17 in 8 ms; N=21 supported on the same engine
- Five physical optimization targets, not just THD
- Topologies: 2-Level VSI, 3-Level NPC, 3-Level T-Type
- Hardware viability grade (PRODUCTION / MARGINAL) on every certified result
- IEEE 519 compliance guaranteed for every solution returned
- Quarter-wave residual precision below 1e-13
Run the check yourself.
Every certified solution is independently reproducible against the textbook SHE equations. Solver outputs are checked by computing Fourier coefficients at the targeted harmonic orders. The deliverable includes a MATLAB fsolve verification script that reproduces the result against the textbook equation — there is no black box.
All headline numbers on this page reproduce against an independent, industry-standard reference implementation. No NDA required for the verification path.
MATLAB fsolveWho buys this.
Inverter and motor-drive OEMs, UPS manufacturers, traction and EV propulsion teams, grid-tie inverter designers, and any power-electronics group currently relying on iterative or stochastic optimizers that cannot prove their result is optimal.