A sensor fault detection scheme as a functional safety feature for DC-DC converters

Research output: Journal contributionsJournal articlesResearchpeer-review

Standard

A sensor fault detection scheme as a functional safety feature for DC-DC converters. / Schmidt, Simon; Oberrath, Jens; Mercorelli, Paolo.
In: Sensors, Vol. 21, No. 19, 6516, 01.10.2021.

Research output: Journal contributionsJournal articlesResearchpeer-review

Harvard

APA

Vancouver

Bibtex

@article{a6e7978a9de54836bc86313ccd18348d,
title = "A sensor fault detection scheme as a functional safety feature for DC-DC converters",
abstract = "DC-DC converters are widely used in a large number of power conversion applications. As in many other systems, they are designed to automatically prevent dangerous failures or control them when they arise; this is called functional safety. Therefore, random hardware failures such as sensor faults have to be detected and handled properly. This proper handling means achieving or maintaining a safe state according to ISO 26262. However, to achieve or maintain a safe state, a fault has to be detected first. Sensor faults within DC-DC converters are generally detected with hardware-redundant sensors, despite all their drawbacks. Within this article, this redundancy is addressed using observer-based techniques utilizing Extended Kalman Filters (EKFs). Moreover, the paper proposes a fault detection and isolation scheme to guarantee functional safety. For this, a cross-EKF structure is implemented to work in cross-parallel to the real sensors and to replace the sensors in case of a fault. This ensures the continuity of the service in case of sensor faults. This idea is based on the concept of the virtual sensor which replaces the sensor in case of fault. Moreover, the concept of the virtual sensor is broader. In fact, if a system is observable, the observer offers a better performance than the sensor. In this context, this paper gives a contribution in this area. The effectiveness of this approach is tested with measurements on a buck converter prototype.",
keywords = "DC-DC power converters, Fault detection, Kalman filters, Power system fault protection, Safety, Engineering",
author = "Simon Schmidt and Jens Oberrath and Paolo Mercorelli",
note = "Funding Information: Since the Academic Year 2017/2018, Paolo Mercorelli has been a Visiting Professor at {\L}{\'o}d{\'z} University of Technology (Poland) and he would like to thank the students of the course of {"}Modelling Methods of Analog Circuits{"} of the summer semesters of the year 2019 at the Master Course in Robotics and Automation for the common discussion during the lectures related to Kalman Filter structures. Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2021",
month = oct,
day = "1",
doi = "10.3390/s21196516",
language = "English",
volume = "21",
journal = "Sensors",
issn = "1424-8239",
publisher = "MDPI AG",
number = "19",

}

RIS

TY - JOUR

T1 - A sensor fault detection scheme as a functional safety feature for DC-DC converters

AU - Schmidt, Simon

AU - Oberrath, Jens

AU - Mercorelli, Paolo

N1 - Funding Information: Since the Academic Year 2017/2018, Paolo Mercorelli has been a Visiting Professor at Łódź University of Technology (Poland) and he would like to thank the students of the course of "Modelling Methods of Analog Circuits" of the summer semesters of the year 2019 at the Master Course in Robotics and Automation for the common discussion during the lectures related to Kalman Filter structures. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2021/10/1

Y1 - 2021/10/1

N2 - DC-DC converters are widely used in a large number of power conversion applications. As in many other systems, they are designed to automatically prevent dangerous failures or control them when they arise; this is called functional safety. Therefore, random hardware failures such as sensor faults have to be detected and handled properly. This proper handling means achieving or maintaining a safe state according to ISO 26262. However, to achieve or maintain a safe state, a fault has to be detected first. Sensor faults within DC-DC converters are generally detected with hardware-redundant sensors, despite all their drawbacks. Within this article, this redundancy is addressed using observer-based techniques utilizing Extended Kalman Filters (EKFs). Moreover, the paper proposes a fault detection and isolation scheme to guarantee functional safety. For this, a cross-EKF structure is implemented to work in cross-parallel to the real sensors and to replace the sensors in case of a fault. This ensures the continuity of the service in case of sensor faults. This idea is based on the concept of the virtual sensor which replaces the sensor in case of fault. Moreover, the concept of the virtual sensor is broader. In fact, if a system is observable, the observer offers a better performance than the sensor. In this context, this paper gives a contribution in this area. The effectiveness of this approach is tested with measurements on a buck converter prototype.

AB - DC-DC converters are widely used in a large number of power conversion applications. As in many other systems, they are designed to automatically prevent dangerous failures or control them when they arise; this is called functional safety. Therefore, random hardware failures such as sensor faults have to be detected and handled properly. This proper handling means achieving or maintaining a safe state according to ISO 26262. However, to achieve or maintain a safe state, a fault has to be detected first. Sensor faults within DC-DC converters are generally detected with hardware-redundant sensors, despite all their drawbacks. Within this article, this redundancy is addressed using observer-based techniques utilizing Extended Kalman Filters (EKFs). Moreover, the paper proposes a fault detection and isolation scheme to guarantee functional safety. For this, a cross-EKF structure is implemented to work in cross-parallel to the real sensors and to replace the sensors in case of a fault. This ensures the continuity of the service in case of sensor faults. This idea is based on the concept of the virtual sensor which replaces the sensor in case of fault. Moreover, the concept of the virtual sensor is broader. In fact, if a system is observable, the observer offers a better performance than the sensor. In this context, this paper gives a contribution in this area. The effectiveness of this approach is tested with measurements on a buck converter prototype.

KW - DC-DC power converters

KW - Fault detection

KW - Kalman filters

KW - Power system fault protection

KW - Safety

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=85115987373&partnerID=8YFLogxK

U2 - 10.3390/s21196516

DO - 10.3390/s21196516

M3 - Journal articles

C2 - 34640839

AN - SCOPUS:85115987373

VL - 21

JO - Sensors

JF - Sensors

SN - 1424-8239

IS - 19

M1 - 6516

ER -

Documents

DOI

Recently viewed

Publications

  1. Dimension estimates for certain sets of infinite complex continued fractions
  2. Validation of an open source, remote web-based eye-tracking method (WebGazer) for research in early childhood
  3. Energy Optimization in Motion Planning of a Two-Link Manipulator using Bernstein Polynomials
  4. Adjustable automation and manoeuvre control in automated driving
  5. An observer for sensorless variable valve control in camless internal combustion engines
  6. Multilevel bridge governor by using model predictive control in wavelet packets for tracking trajectories
  7. A PD regulator to minimize noise effect using a minimal variance method for soft landing control of an electromagnetic valve actuator
  8. A simple control strategy for increasing the soft bending actuator performance by using a pressure boost
  9. Use of Machine-Learning Algorithms Based on Text, Audio and Video Data in the Prediction of Anxiety and Post-Traumatic Stress in General and Clinical Populations
  10. Comparison of Trajectory Estimation Methods Based on LIDAR and Monocular Camera in a Simulated Environment
  11. Automatic feature selection for anomaly detection
  12. The Forgotten Function of Forgetting
  13. Kit based motion generator for a soft walking robot
  14. Structural Synthesis of Parallel Robots with Unguided Linear Actuators
  15. Parameterized Synthetic Image Data Set for Fisheye Lens
  16. Document assignment in multi-site search engines
  17. Detection time analysis of propulsion system fault effects in a hexacopter
  18. On the utility of indirect methods for detecting faking
  19. On the origin of passive rotation in rotational joints, and how to calculate it
  20. Homogenization methods for multi-phase elastic composites with non-elliptical reinforcements
  21. Mining Implications From Data
  22. Early Detection of Faillure in Conveyor Chain Systems by Wireless Sensor Node
  23. Trait-based approaches to analyze links between the drivers of change and ecosystem services
  24. Design, Modeling and Control of an Over-actuated Hexacopter Tilt-Rotor
  25. Robust Control of Excavation Mobile Robot with Dynamic Triangulation Vision
  26. Optimal dynamic scale and structure of a multi-pollution economy
  27. An error management perspective on audit quality
  28. A high-resolution approach for the spatiotemporal analysis of forest canopy space using terrestrial laser scanning data
  29. Obstacle Coordinates Transformation from TVS Body-Frame to AGV Navigation-Frame
  30. Impulsive Feedback Linearization for Decoupling of a Constant Disturbance with Low Relative Degree to Control Maglev Systems
  31. A Sliding Mode Control with a Bang-Bang Observer for Detection of Particle Pollution
  32. Global Finite-Time Stabilization of Planar Linear Systems With Actuator Saturation
  33. A Lyapunov based PI controller with an anti-windup scheme for a purification process of potable water
  34. The Impact of AGVs and Priority Rules in a Real Production Setup – A Simulation Study
  35. Performance of process-based models for simulation of grain N in crop rotations across Europe
  36. A Control of an Electromagnetic Actuator Using Model Predictive Control
  37. Passive Rotation Compensation in Parallel Kinematics Using Quaternions
  38. Educational reconstruction as model for the theory-based design of student-centered learning environments in electrical engineering courses
  39. An isomorphism between polynomial eigenfunctions of the transfer operator and the Eichler cohomology for modular groups
  40. A geometric approach for the design and control of an electromagnetic actuator to optimize its dynamic performance
  41. Machine vision system errors for unmanned aerial vehicle navigation
  42. Modernizing persistence–bioaccumulation–toxicity (PBT) assessment with high throughput animal-free methods
  43. Factor structure and measurement invariance of the Students’ Self-report Checklist of Social and Learning Behaviour (SSL)
  44. A Structure and Content Prompt-based Method for Knowledge Graph Question Answering over Scholarly Data
  45. Simple relay non-linear PD control for faster and high-precision motion systems with friction
  46. Controlling a Bank Model Economy by Using an Adaptive Model Predictive Control with Help of an Extended Kalman Filter
  47. Reading Comprehension as Embodied Action: Exploratory Findings on Nonlinear Eye Movement Dynamics and Comprehension of Scientific Texts
  48. WHICH ESTIMATION SITUATIONS ARE RELEVANT FOR A VALID ASSESSMENT OF MEASUREMENT ESTIMATION SKILLS
  49. Individual Scans Fusion in Virtual Knowledge Base for Navigation of Mobile Robotic Group with 3D TVS