DOI: 10.5281/zenodo.18259449
title: Finite-Element Simulation Dataset of a Vertical Fin Air Capacitor for Dynamic Hybrid Wireless Power Transfer

description: This dataset contains finite-element simulation results of a vertical fin air capacitor intended for use in dynamic hybrid wireless power transfer (WPT) systems. The simulations investigate the influence of air-gap distance and lateral misalignment between transmitter (Tx) and receiver (Rx) plates on the resulting capacitance, which is a critical parameter for capacitive and hybrid WPT couplers operating under dynamic conditions.

The dataset was generated using parametric FEM simulations, where multiple geometric configurations of transmitter and receiver plates were evaluated. For each configuration, the capacitance was computed across a range of receiver air gaps and lateral displacements, reflecting realistic operating scenarios such as vehicle motion or misaligned charging platforms.

The data is suitable for:





validation of analytical and reduced-order capacitance models,




optimization and sensitivity analysis of capacitive WPT couplers,




system-level simulations of dynamic hybrid (inductive–capacitive) wireless power transfer systems,




machine-learning-based surrogate modeling and design space exploration.



Dataset Structure

The dataset is provided in JSON format and consists of a list of design solutions. Each solution corresponds to a unique geometric configuration and is identified by a unique id.

Each design entry includes:





Material definitions for plates, isolator, and dielectric gap,




Geometric parameters of transmitter and receiver plates,




Simulation sweep definitions (air-gap and lateral displacement ranges),




Computed capacitance values for each operating point,




An optional cost or fitness function value for optimization studies.



File Contents

Each JSON object includes the following key sections:

1. Design Metadata





id – unique identifier of the design




material_plate, material_isolator, material_gap




Transmitter (Tx) and receiver (Rx) base dimensions and thicknesses




Optional fin parameters (set to zero in this dataset)



2. Simulation Sweep Parameters



    "fin_top_start"  : 2,     "fin_top_stop"  : 7,     "fin_top_step"  : 1, 

    "fin_height_start"  : 5,     "fin_height_stop"  : 20,     "fin_height_step"  : 5, 

    "fin_count_start"   : 2,    "fin_count_stop"   : 6,    "fin_count_step"   : 1,        "base_length_start": 50,    "base_length_stop": 200,    "base_length_step": 50,   


3. Capacitance Results

Capacitance values are stored as a list of entries, each corresponding to a specific receiver air gap. For each air gap, capacitance is provided as a function of lateral displacement:

{
  "Receiver_air_gap": 5.0,
  "Receiver_plate_lateral_position": [0, 10, 20, ..., 150],
  "Capacitance": [15.58, 15.50, 15.27, ..., 1.24]
}


Capacitance values are expressed in picofarads (pF).

Methods

The data was generated using finite-element electrostatic simulations with parametric sweeps over air gap and lateral displacement. Capacitance was extracted from the simulated electric field and stored for post-processing and analysis.