FHA Model 07 — Double-Loop Single-M, no C2 (DL-SM-N) Hybrid Coupling Circuit: Frequency/Load Sweep

This dataset contains a First Harmonic Approximation (FHA) analytical sweep of the DL-SM-N (Double-Loop Single-M, no C2) hybrid inductive-capacitive coupling circuit topology for wireless power transfer (WPT), derived symbolically with SymPy from the circuit's governing equations, following the modelling approach of B. Pakhaliuk, V. Lysiuk, I. Burmaka, O. Matiushkin and R. Strzelecki, "Simulation analysis of wireless power transfer solutions with hybrid inductive and capacitive coupling" (manuscript, unpublished).

DL-SM variant with the secondary-side compensation capacitor C2 removed.

DL-SM-N extends the source paper's six core topologies (it is not itself simulated there); see the note below for how it relates to them.

The topology belongs to a family of hybrid-coupling compensation variants evaluated for dynamic hybrid WPT systems: six core topologies from the paper (DL-SM, DL-AL, DL-DM, SL-SM, SL-AL, SL-DM), plus extended variants (no-C2, parallel-C2, and LCC-based compensation networks). This record covers DL-SM-N.

Topology abbreviations

• DL — Double Loop — separate primary and secondary resonant loops
• SL — Single Loop — one resonant loop spanning both sides, single compensation capacitor
• SM — Single M — one inductive coupling pair (mutual inductance M)
• AL — Additional L — extra non-coupled, high Q-factor inductance added in series to shrink C1
• DM — Double M — a second inductive coupling pair (M1, M2) added via the additional inductance
• C2 — Secondary-side compensation capacitor
• N — (suffix) No C2 — secondary-side compensation capacitor removed
• P — (suffix) Parallel C2 — secondary-side capacitor connected in parallel instead of series
• LCC — Inductor-Capacitor-Capacitor compensation network

Dataset Structure

• frequency_sweep.csv — 800 rows (200 frequency points × 4 load points), swept over 50–150 kHz at RL_dc ∈ [1, 20, 50, 100] Ω, Vin_dc = 100 V. Columns:

  • freq_Hz — sweep frequency, Hz
  • RL_dc_ohm — nominal DC-equivalent load resistance, Ω
  • Iin_A_pk / Iin_phase_deg — input (primary) current, peak amplitude (A) and phase (deg)
  • Iout_A_pk / Iout_phase_deg — output (secondary/load) current, peak amplitude (A) and phase (deg)
  • Zin_ohm — input impedance magnitude, Ω
  • Vout_V_pk — output (rectifier-input) voltage, peak amplitude, V
  • Pout_W — output active power, W
  • Efficiency_pct — Pout/Pin, %

• components.json — the R/L/C and coupling (k, M) values used, tuned to resonate at f0 = 85 kHz.

• frequency_sweep_plot.png — six-panel overview (|Iin|, phase(Iin), |Zin|, |Iout|, phase(Iout), efficiency vs. frequency) for a quick visual check of the sweep.

Intended Uses

• validation of FHA models against SPICE or hardware measurements,

• resonant tuning and compensation-network design studies,

• comparative screening across the hybrid-coupling topology family,

• input for control-loop or converter-level system simulations,

• training data for surrogate/ML models predicting efficiency or gain vs. frequency/load.

Limitation: results are purely analytical (fundamental-frequency phasor solution); no SPICE, numerical circuit simulation, or hardware measurement was used to cross-validate them.