Published June 1, 2026 | Version v1
Dataset Open

Power Converter Fault Diagnosis Dataset

Authors/Creators

  • 1. ROR icon Universidad de Sevilla

Description

This dataset contains electrical measurements acquired from a real-time Hardware-in-the-Loop (HIL) simulation environment developed for fault diagnosis research in power electronic converters.

The simulated system corresponds to a 2 MW two-level voltage source inverter (2L-VSI) connected to a three-phase 400/690 V, 50 Hz electrical grid and a 1500 V DC bus. The model was executed on a Typhoon HIL606 real-time simulator, enabling the controlled injection of multiple fault conditions while preserving the dynamic behavior of the converter.

The dataset includes measurements collected under both nominal and faulty operating conditions. A total of 48 operating categories are represented, corresponding to one healthy operating mode and 47 fault conditions. The simulated faults include grid disturbances, DC-bus abnormalities, semiconductor failures, harmonic distortion, electrical noise, voltage deviations, frequency variations, phase-sequence alterations, short-circuits, and disconnection events.

To improve dataset diversity and reduce phase-dependent bias, fault injection was performed at randomly selected temporal instants during converter operation.

Included Measurements

This repository contains the following measurement categories:

id_mea = 10 — Three-Phase RMS Voltages

Three-dimensional measurement composed of the RMS values of the three grid voltages. This low-dimensional representation characterizes the global electrical operating condition of the converter and the grid.

Dimensions: 3

id_mea = 3 — Instantaneous DC Voltage and Current

High-dimensional instantaneous measurements containing the DC-link capacitor voltage and input current sampled at switching frequency. The resulting vectorized representation captures transient and dynamic behaviors associated with fault conditions.

Dimensions: 40

id_mea = 2 — Instantaneous Three-Phase Currents

High-dimensional vectorized representation of the three-phase grid currents sampled at switching frequency. The measurement preserves the complete waveform information of the analyzed electrical cycle and enables the characterization of dynamic fault signatures.

Dimensions: 60

Fault Categories

Fault ID

Fault element

Fault description

1

Short-circuit switches between phases and the ground

Short-circuit between phase C and ground

2

Short-circuit switches between phases and the ground

Short-circuit between phase B and ground

3

Short-circuit switches between phases and the ground

Short-circuit between phases B and C

4

Short-circuit switches between phases and the ground

Short-circuit between phases B and C and the ground

5

Short-circuit switches between phases and the ground

Short-circuit between phase A and ground

6

Short-circuit switches between phases and the ground

Short-circuit between phases A and C

7

Short-circuit switches between phases and the ground

Short-circuit between phases A and C and the ground

8

Short-circuit switches between phases and the ground

Short-circuit between phases A and B

9

Short-circuit switches between phases and the ground

Short-circuit between phases A and B with the ground

10

Short-circuit switches between phases and the ground

Short-circuit between phases A, B and C

11

Short-circuit switches between phases and the ground

Short-circuit between phases A, B, C and the ground

12

Alternative set of impedances/weak grid

Changes of the value of the grid impedance

13

Serial switches between the grid and the power converter

Disconnection/Open circuit of phase A

14

Serial switches between the grid and the power converter

Disconnection/Open circuit of phase B

15

Serial switches between the grid and the power converter

Disconnection/Open circuit of phase C

16

Serial switches between the grid and the power converter

Disconnection/Open circuit of both phases A and B

17

Serial switches between the grid and the power converter

Disconnection/Open circuit of both phases B and C

18

Serial switches between the grid and the power converter

Disconnection/Open circuit of both phases A and C

19

Serial switches between the grid and the power converter

Disconnection/Open circuit of the three phases (black-out)

20

Three-phase voltage source that represent the grid

Increasing of the amplitude of one of the grid phases

21

Three-phase voltage source that represent the grid

Decreasing of the amplitude of one of the grid phases

22

Three-phase voltage source that represent the grid

Positive spikes in voltage of one grid’s phase

23

Three-phase voltage source that represent the grid

Negative spikes in voltage of one grid’s phase

24

Three-phase voltage source that represent the grid

Change in the grid phase sequence.

Phase order {-120º, 0º, +120º}

25

Three-phase voltage source that represent the grid

Change in the grid phase sequence.

Phase order {+120º, -120º, 0º}

26

Three-phase voltage source that represent the grid

Change in the grid phase sequence.

Phase order {0º, -120º, +120º}

27

Three-phase voltage source that represent the grid

Change in the grid phase sequence.

Phase order {+120º, 0º, -120º}

28

Three-phase voltage source that represent the grid

Change in the grid phase sequence.

Phase order {-120º, +120º, 0º}

29

Three-phase voltage source that represent the grid

Introducing positive phase lag into one of the grid phases

30

Three-phase voltage source that represent the grid

Introducing negative phase lag into one of the grid phases

31

Three-phase voltage source that represent the grid

Grid’s frequency variations

32

Three-phase voltage source that represent the grid

Including non-compliant third harmonic in the grid

33

Three-phase voltage source that represent the grid

Including non-compliant fifth harmonic in the grid

34

Three-phase voltage source that represent the grid

Including non-compliant seventh harmonic in the grid

35

Three-phase voltage source that represent the grid

Including non-compliant third and fifth harmonics in the grid

36

Three-phase voltage source that represent the grid

Including non-compliant fifth and seventh harmonics in the grid

37

Three-phase voltage source that represent the grid

Including non-compliant third and seventh harmonics in the grid

38

Three-phase voltage source that represent the grid

Including non-compliant third, fifth and seventh harmonics in the grid

39

DC side voltage source

Positive spike in DC voltage bus

40

DC side voltage source

Negative spike in DC voltage bus

41

DC side voltage source

Low DC voltage bus value

42

Short-circuit switches between DC terminals and the ground

Short-circuit between DC side positive terminal and the ground

43

Short-circuit switches between DC terminals and the ground

Short-circuit between DC side negative terminal and the ground

44

Short-circuit switches between DC terminals and the ground

Short-circuit between both DC side terminals

45

Short-circuit switches between DC terminals and the ground

Short-circuit between both DC side terminals and the ground

46

Modulator/IGBT driver/IGBT

Blocking of one IGBT in open state

47

Modulator/IGBT driver/IGBT

Blocking of one IGBT in closed state

Data Format

Each sample is stored in JSON format and contains:

  • id_error: fault category identifier.
  • mea_value: measurement vector.
  • Additional metadata associated with the acquisition process.

Related Publication

This dataset was generated for the study:

"Hybrid Fault-Space Restructuring for Machine Learning-Based Fault Diagnosis in Power Electronic Converters".

Files

daset.zip

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