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Cheng, Peng
Publications (10 of 27) Show all publications
Haller, S., Cheng, P. & Oelmann, B. (2019). A 2.5 v 600 a mosfet-based DC traction motor. In: Proceedings of the IEEE International Conference on Industrial Technology: . Paper presented at 2019 IEEE International Conference on Industrial Technology, ICIT 2019; Melbourne Convention and Exhibition Centre, Melbourne, Australia, 13 February 2019 through 15 February 2019 (pp. 213-218). Institute of Electrical and Electronics Engineers (IEEE), Article ID 8755146.
Open this publication in new window or tab >>A 2.5 v 600 a mosfet-based DC traction motor
2019 (English)In: Proceedings of the IEEE International Conference on Industrial Technology, Institute of Electrical and Electronics Engineers (IEEE), 2019, p. 213-218, article id 8755146Conference paper, Published paper (Refereed)
Abstract [en]

A high copper fill factor allows reducing the resistive losses responsible for more than 50 % of the losses in today's most commonly used electrical motors. Single-turn windings achieve a copper fill factor close to one. Furthermore, they do not suffer from turn to turn faults and provide a low thermal resistance between winding and stator. The reduced EMF of single-turn winding configurations promotes the use of extra-low voltage high current MOSFETs. Rapid development of these MOSFETs allows reversing common design principles to explore new applications, such as battery electric traction drives. This paper presents a 2.5 V 1 kW MOSFET driven 13-phase permanent magnet DC motor with a single-turn winding configuration. The motor prototype with a copper fill factor of 0.84 was tested with continuous drive currents up to 600 A. The measured torque-efficiency map shows that such a high-current concept with voltages below 60 V is feasible using today's extremely low-voltage high current semiconductors. Due to the rapid development of such switches, there is great potential in this concept for further improvements. This work presents a small-scale version of the high-current drive, which is part of the development of an extra-low voltage traction drive concept. 

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2019
Keywords
Brushless DC motor, High-current, Low-voltage, MOSFET, SELV, Single-turn winding, Traction drive
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-36837 (URN)10.1109/ICIT.2019.8755146 (DOI)000490548300032 ()2-s2.0-85069037482 (Scopus ID)9781538663769 (ISBN)
Conference
2019 IEEE International Conference on Industrial Technology, ICIT 2019; Melbourne Convention and Exhibition Centre, Melbourne, Australia, 13 February 2019 through 15 February 2019
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2019-08-13 Created: 2019-08-13 Last updated: 2020-02-19Bibliographically approved
Cheng, P. & Szewczyk, R. (2018). Modified description of magnetic hysteresis in Jiles-Atherton model. In: Automation 2018: Advances In Automation, Robotics And Measurement Techniques: . Paper presented at International Conference on Advances in Automation, Robotics and Measurement Techniques, AUTOMATION 2018; Warsaw; Poland; 21 March 2018 through 23 March 2018 (pp. 648-654). Springer, 743
Open this publication in new window or tab >>Modified description of magnetic hysteresis in Jiles-Atherton model
2018 (English)In: Automation 2018: Advances In Automation, Robotics And Measurement Techniques, Springer, 2018, Vol. 743, p. 648-654Conference paper, Published paper (Refereed)
Abstract [en]

Paper presents new idea of modelling the magnetic hysteresis in the Jiles-Atherton model. Presented approach considers physical principles of magnetisation process and main assumptions of Jiles-Atherton model. As a result modified differential equation stating the model was proposed. This equation was verified on the base of magnetic hysteresis loops of non grain oriented electrical steel. Presented results indicate, that proposed approach to modelling the magnetic hysteresis loops well correspond with results of experimental measurements. 

Place, publisher, year, edition, pages
Springer, 2018
Series
Advances in Intelligent Systems and Computing
Keywords
Jiles-Atherton model, Magnetic hysteresis
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-33389 (URN)10.1007/978-3-319-77179-3_62 (DOI)000462745200062 ()2-s2.0-85044048345 (Scopus ID)9783319771786 (ISBN)
Conference
International Conference on Advances in Automation, Robotics and Measurement Techniques, AUTOMATION 2018; Warsaw; Poland; 21 March 2018 through 23 March 2018
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2018-04-03 Created: 2018-04-03 Last updated: 2019-09-09Bibliographically approved
Szewczyk, R. & Cheng, P. (2018). Open Source Implementation of Different Variants of Jiles-Atherton Model of Magnetic Hysteresis Loops. Acta Physica Polonica. A, 133(3), 654-656
Open this publication in new window or tab >>Open Source Implementation of Different Variants of Jiles-Atherton Model of Magnetic Hysteresis Loops
2018 (English)In: Acta Physica Polonica. A, ISSN 0587-4246, E-ISSN 1898-794X, Vol. 133, no 3, p. 654-656Article in journal (Refereed) Published
Abstract [en]

Jiles-Atherton model is one of the most advanced and most popular models of magnetic hysteresis loop. However, this model is considering different physical phenomena and computational issues. As a result, cross-validation of the results of modelling performed by different authors became difficult. For this reason, the open-source MATLAB/OCTAVE based implementation of Jiles-Atherton model was developed. Proposed implementation covers isotropic model of magnetic hysteresis loops as well as uniaxial and grain oriented electrical steel anisotropy. Moreover, the corrections proposed by Venkataraman together with different approaches to derivative of the anhysteretic magnetization are considered. Developed library is freely available together with the examples of magnetic hysteresis loops. As a result, it can be the base for further development of Jiles-Atherton model for better understanding of magnetization process as well as modelling the inductive components.

National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-33589 (URN)10.12693/APhysPolA.133.654 (DOI)000429565200099 ()2-s2.0-85045133532 (Scopus ID)
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2018-05-08 Created: 2018-05-08 Last updated: 2019-09-09Bibliographically approved
Nazar Ul Islam, M., Cheng, P. & Oelmann, B. (2018). Torque sensor design considering thermal stability for harsh industrial environments. In: Proceedings of the International Conference on Sensing Technology, ICST: . Paper presented at 12th International Conference on Sensing Technology (ICST), Univ Limerick, Limerick, IRELAND, DEC 04-06, 2018 (pp. 83-86). IEEE, Article ID 8603591.
Open this publication in new window or tab >>Torque sensor design considering thermal stability for harsh industrial environments
2018 (English)In: Proceedings of the International Conference on Sensing Technology, ICST, IEEE, 2018, p. 83-86, article id 8603591Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents a torque sensor design based on a differential pressure measurement, focusing on thermal stability. The sensor utilizes the principle of measuring the differential volumetric strain due to the applied torque. The proposed design of the sensor is an improvement to the previous design of the sensor. Both the previous design and the improved design are discussed in terms of thermal stability. Comprehensive thermal simulations are conducted on the design in order to compare the thermal stability and performance of the sensors. Based on the presented results it is shown that prosed design of the sensor can achieve at least 99.61% better stability then the previous design. The range of the sensor is +/- 150N.m. Furthermore, it is also concluded that the new design also improves on the manufacturability, ease of integration and overall size of the sensor.

Place, publisher, year, edition, pages
IEEE, 2018
Series
International Conference on Sensing Technology, ISSN 2156-8065
Keywords
Torque measurement, Strain, Mechanical factors, Pressure measurement
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-35805 (URN)10.1109/ICSensT.2018.8603591 (DOI)000458872800016 ()2-s2.0-85061485089 (Scopus ID)978-1-5386-5147-6 (ISBN)
Conference
12th International Conference on Sensing Technology (ICST), Univ Limerick, Limerick, IRELAND, DEC 04-06, 2018
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2019-03-19 Created: 2019-03-19 Last updated: 2020-01-29Bibliographically approved
Cheng, P., Nazar Ul Islam, M. & Oelmann, B. (2017). Torque Sensor Based on Differential Air Pressure Using Volumetric Strain. IEEE Sensors Journal, 17(11), 3269-3277, Article ID 7902159.
Open this publication in new window or tab >>Torque Sensor Based on Differential Air Pressure Using Volumetric Strain
2017 (English)In: IEEE Sensors Journal, ISSN 1530-437X, E-ISSN 1558-1748, Vol. 17, no 11, p. 3269-3277, article id 7902159Article in journal (Refereed) Published
Abstract [en]

This paper proposes a torque sensor based on the differential air pressure measurement method using the volumetric strain of a mechanical sensing structure. A model of the measurement system based on the differential air pressure from the volumetric strain of the mechanical sensing structure is proposed and theoretically discussed. The error sources are identified and an error propagation model is presented for the proposed torque measurement method. Considering these error sources, a prototype torque sensor is presented as a case study for the method verification. Both the mechanical and readout electronics designs are discussed and analyzed. The mechanical sensitivity, resolution, and maximum stresses are analyzed using finite-element modeling. Based on the results from the simulation, a prototype torque sensor is manufactured and experimentally verified using a readout electronics design. For verification, the sensor prototype is measured under static torque to have a sensitivity of 0.04272V/N. m and a range of +/- 117N . m. Compared with the nominal mechanical sensitivity result from the FEM simulation, this measured sensitivity has a difference less than 6%. The noise analysis of the designed readout electronics shows that the resolution of 0.006% can be achieved with this design. Furthermore, hysteresis analysis shows an error of 0.012% of full scale. From these results, it is also shown that the actual performance of the sensor is mainly limited by the differential pressure sensor and the readout electronics design and is not by the mechanical design of the sensor.

Keywords
Torque measurement, strain, mechanical factors, pressure measurement
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-30839 (URN)10.1109/JSEN.2017.2695060 (DOI)000401083200006 ()2-s2.0-85028919396 (Scopus ID)STC (Local ID)STC (Archive number)STC (OAI)
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2017-06-09 Created: 2017-06-09 Last updated: 2020-01-29Bibliographically approved
Nazar Ul Islam, M., Cheng, P. & Oelmann, B. (2016). Design optimization of differential air pressure sensor calibration setup for sensitivity minimization to thermal gradient. In: 2015 IEEE 12th International Conference on Electronic Measurement and Instruments, ICEMI 2015: . Paper presented at 2th IEEE International Conference on Electronic Measurement and Instruments, ICEMI 2015; Qingdao; China; 16 July 2015 through 18 July 2015; Category numberCFPI533C-PRT; Code 122296. IEEE conference proceedings, Article ID 7494452.
Open this publication in new window or tab >>Design optimization of differential air pressure sensor calibration setup for sensitivity minimization to thermal gradient
2016 (English)In: 2015 IEEE 12th International Conference on Electronic Measurement and Instruments, ICEMI 2015, IEEE conference proceedings, 2016, article id 7494452Conference paper, Published paper (Refereed)
Abstract [en]

This paper focuses on the thermal stability of a high performance, low-range calibration setup for differential airpressure sensors. The setup is a dual parallel chamber design with the full range of ±320 Pa, which can be translated to a temperature mismatch of only about 0.93oC between the chambers. Due to the limitations of existing temperature measurement technology, we propose a finite element model(FEM) analysis to study the effect of thermal gradient on the calibration setup. The model setup includes the dual parallel chamber design inside a conventional climate chamber. From the conducted analysis we observe that, due to the non-ideal heat distribution inside the climate chamber, the calibration setup can experience an error of more than 20 % of full range.To minimize this error, we propose an optimized dual cascaded chamber calibration setup design and verify its thermal performance under the same environmental setup. The results show that the proposed design reduces the error, due to thermal gradient, down to 1.8 % of full range. In conclusion it is also discussed that the proposed design reduces error sources related to its mechanical complexity. Future work is proposed on the design and implementation of the optimized design.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2016
Keywords
Actuators, Calibration, Electronics, Mechanical factors, Temperature measurement
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-26532 (URN)10.1109/ICEMI.2015.7494452 (DOI)2-s2.0-84978234737 (Scopus ID)STC (Local ID)978-1-4799-7071-1 (ISBN)STC (Archive number)STC (OAI)
Conference
2th IEEE International Conference on Electronic Measurement and Instruments, ICEMI 2015; Qingdao; China; 16 July 2015 through 18 July 2015; Category numberCFPI533C-PRT; Code 122296
Available from: 2015-12-16 Created: 2015-12-16 Last updated: 2020-01-29Bibliographically approved
Nazar Ul Islam, M., Cheng, P. & Oelmann, B. (2016). Functional verification of a torque sensor based on the volumetric strain method. In: Proceedings - 2016 IEEE International Power Electronics and Motion Control Conference (PEMC): . Paper presented at 17th IEEE International Power Electronics and Motion Control Conference, PEMC 2016; Festival and Congress CentreVarna; Bulgaria; 25 September 2016 through 28 September 2016 (pp. 818-823). IEEE, Article ID 7752099.
Open this publication in new window or tab >>Functional verification of a torque sensor based on the volumetric strain method
2016 (English)In: Proceedings - 2016 IEEE International Power Electronics and Motion Control Conference (PEMC), IEEE, 2016, p. 818-823, article id 7752099Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents an experimental comparative analysis of a torque measurement method based on volumetric strain, utilizing a prototype torque sensor design is compared to a reference high performance torque sensor. A brief description of the background work of the numerical analysis of the method is also discussed as well as the readout electronics design. Based on the simulations and readout electronics analysis it is concluded that the sensor has a mechanical range of ±300 N·m. The manufacturing details of the prototype torque sensor are also discussed. A test setup is used to place the two torque sensors in line, to allow comparison for which a high performance conventional off-the-shelf torque sensor is selected. The experiments show that the proposed method of torque measurement can be fully implemented and used to measure torque with higher response time, resolution and wider range. Furthermore, future work is proposed to fully characterize the sensor over the full range using a reference setup rather than a torque sensor, as the available conventional sensors cannot be used to characterize the prototype torque sensor in full range with higher performance than the sensor itself.

Place, publisher, year, edition, pages
IEEE, 2016
Keywords
Electronics, Mechanical factors, Pressure measurement, Strain, Torque
National Category
Embedded Systems
Identifiers
urn:nbn:se:miun:diva-29385 (URN)10.1109/EPEPEMC.2016.7752099 (DOI)000390590000118 ()2-s2.0-85008263103 (Scopus ID)STC (Local ID)978-1-5090-1798-0 (ISBN)STC (Archive number)STC (OAI)
Conference
17th IEEE International Power Electronics and Motion Control Conference, PEMC 2016; Festival and Congress CentreVarna; Bulgaria; 25 September 2016 through 28 September 2016
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2016-12-01 Created: 2016-12-01 Last updated: 2020-01-29Bibliographically approved
Haller, S., Cheng, P. & Oelmann, B. (2016). Initial characterization of a 2V 1.1kW MOSFET commutated DC motor. In: IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society: . Paper presented at 42nd Conference of the Industrial Electronics Society, IECON 2016; Palazzo dei CongressiFlorence; Italy; 24 October 2016 through 27 October 2016 (pp. 4287-4292). IEEE, Article ID 7794029.
Open this publication in new window or tab >>Initial characterization of a 2V 1.1kW MOSFET commutated DC motor
2016 (English)In: IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, IEEE, 2016, p. 4287-4292, article id 7794029Conference paper, Published paper (Refereed)
Abstract [en]

Rapid development of extremely-low voltage high current MOSFETs allows reversing common design principles to explore new applications, such as battery powered traction drives. This enables the usage of multi-phase single-turn stator windings which can achieve a copper fill factor close to one. This paper briefly describes the proposed 2V, 1.1kW MOSFET commutated 13-phase permanent magnet DC motor and presents the efficiency and resistive loss measurements of the first prototype. The motor was successfully run with drive currents up to 520 A. Most of the obtained losses were resistive contact losses due to the flexible winding connections, less than 6% are dedicated to the MOSFETs. The results show that such a high current drive system is feasible and has great potential for further improvements, which is supported by the rapid development of extremely-low voltage high current semiconductors.

Place, publisher, year, edition, pages
IEEE, 2016
Series
IEEE Industrial Electronics Society, ISSN 1553-572X
Keywords
Commutation, Current measurement, MOSFET, Stator windings, Torque, Torque measurement, brushless DC motor, drive system, electronic commutation, extremely-low voltage, single-turn coil
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-29845 (URN)10.1109/IECON.2016.7794029 (DOI)000399031204094 ()2-s2.0-85010042097 (Scopus ID)STC (Local ID)STC (Archive number)STC (OAI)
Conference
42nd Conference of the Industrial Electronics Society, IECON 2016; Palazzo dei CongressiFlorence; Italy; 24 October 2016 through 27 October 2016
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2017-01-10 Created: 2017-01-10 Last updated: 2020-01-29Bibliographically approved
Haller, S., Cheng, P. & Oelmann, B. (2016). Investigation of a 2 V 1.1 kW MOSFET commutated DC motor. In: Proceedings - 2016 IEEE International Power Electronics and Motion Control Conference (PEMC): . Paper presented at 17th IEEE International Power Electronics and Motion Control Conference, PEMC 2016; Festival and Congress CentreVarna; Bulgaria; 25 September 2016 through 28 September 2016 (pp. 586-593). IEEE, Article ID 7752061.
Open this publication in new window or tab >>Investigation of a 2 V 1.1 kW MOSFET commutated DC motor
2016 (English)In: Proceedings - 2016 IEEE International Power Electronics and Motion Control Conference (PEMC), IEEE, 2016, p. 586-593, article id 7752061Conference paper, Published paper (Refereed)
Abstract [en]

This paper proposes an extremely-low voltage high current MOSFET-based drive architecture. A single-turn multiphase winding design allows a copper fill factor approaching one. The single-turn coil design leads to a low EMF voltage and high current design which requires a matched drive system. To identify the technical design obstacles and verify the feasibility of the proposed architecture, a small scale prototype is built and successfully tested. The described prototype consists of an extremely-low voltage 13-phase single-turn coil permanent magnet DC motor and MOSFET-based commutator. The prototype's locked rotor-torque and no-load power consumption, as well as the EMF voltage measurements are presented and the DC motor constants are extracted. The experimental results from the prototype measurements indicate a promising potential for cost-effective extremely-low voltage high current MOSFET-based drive systems.

Place, publisher, year, edition, pages
IEEE, 2016
Keywords
DC motor drives, MOSFET, coils, commutator motors, copper, electric potential, machine windings, permanent magnet motors, power consumption, rotors, voltage measurement, EMF voltage measurements, MOSFET commutated DC motor, copper fill factor, extremely-low voltage 13-phase single-turn coil permanent magnet DC motor, extremely-low voltage high current MOSFET-based drive architecture, locked rotor-torque power consumption, matched drive system, no-load power consumption, power 1.1 kW, single-turn coil design, single-turn multiphase winding design, voltage 2 V, Commutation, DC motors, Induction motors, Windings, brushless DC motor, drive system, electronic commutation, extremely-low voltage, single-turn coil
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-29846 (URN)10.1109/EPEPEMC.2016.7752061 (DOI)000390590000087 ()2-s2.0-85008259872 (Scopus ID)STC (Local ID)978-1-5090-1798-0 (ISBN)STC (Archive number)STC (OAI)
Conference
17th IEEE International Power Electronics and Motion Control Conference, PEMC 2016; Festival and Congress CentreVarna; Bulgaria; 25 September 2016 through 28 September 2016
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2017-01-10 Created: 2017-01-10 Last updated: 2020-01-29Bibliographically approved
Nazar Ul Islam, M., Cheng, P. & Oelmann, B. (2016). Method of torque measurement based on volumetric strain. In: Proceedings of the SICE Annual Conference 2016 Tsukuba, Japan, September 20-23, 2016: . Paper presented at 55th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2016; Tsukuba; Japan; 20 September 2016 through 23 September 2016 (pp. 116-123). IEEE, Article ID 7749205.
Open this publication in new window or tab >>Method of torque measurement based on volumetric strain
2016 (English)In: Proceedings of the SICE Annual Conference 2016 Tsukuba, Japan, September 20-23, 2016, IEEE, 2016, p. 116-123, article id 7749205Conference paper, Published paper (Refereed)
Abstract [en]

This paper proposes a torque measurement method based on volumetric strain. A model of the measurement system based on the differential pressure monitoring is proposed and theoretically discussed. The error sources are identified and an error propagation model is presented for the proposed torque measurement method. Considering these error sources, a prototype torque sensor is presented as a case study for the method verification. Both the mechanical and readout electronics design are discussed and analyzed. The mechanical sensitivity and maximum stresses are analyzed using Finite Element Method. Whereas, the readout electronics is experimentally verified using an off-the-shelf high performance differential pressure sensor. The results from the conducted analysis show that the presented design of torque sensor can be used to measure torque in the range of ±300 N·m with the resolution of 0.006 % of full scale. The maximum observed stress on the proposed structure is 220 MPa. The experiments conducted on the readout electronics show that the differential pressure sensor is the limiting factor in the design when it comes to the resolution. In conclusion it is summarized that the presented torque sensor can be used in industrial applications requiring both high resolution and wide range. Moreover, the method is fully adaptable to various performance requirements in terms of range and resolution. The future work is also discussed to implement the presented design and characterize it using reference instruments.

Place, publisher, year, edition, pages
IEEE, 2016
Keywords
Electronics, Mechanical factors, Pressure measurement, Strain, Torque
National Category
Embedded Systems
Identifiers
urn:nbn:se:miun:diva-29384 (URN)10.1109/SICE.2016.7749205 (DOI)000391463900005 ()2-s2.0-85008253467 (Scopus ID)STC (Local ID)978-4-907764-50-0 (ISBN)STC (Archive number)STC (OAI)
Conference
55th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2016; Tsukuba; Japan; 20 September 2016 through 23 September 2016
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2016-12-01 Created: 2016-12-01 Last updated: 2020-01-29Bibliographically approved
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