Phase Current Measurement Method of Dual Inverter-Motor Drive System Using a Single DC Link Current Sensor
In recent years, electric propulsion systems have become widely, used and these systems have strict limits in volume and weight. Therefore, it is necessary to reduce the weight of the inverter-motor drive system. In a typical <inline-formula><math xmlns="http://www.w3.org/1998/Math/Mat...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-09-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/14/18/5626 |
| _version_ | 1797519470499987456 |
|---|---|
| author | Seon-Ik Hwang Seong-Hyeon Cho Jun-Hyung Jung Jang-Mok Kim |
| author_facet | Seon-Ik Hwang Seong-Hyeon Cho Jun-Hyung Jung Jang-Mok Kim |
| author_sort | Seon-Ik Hwang |
| collection | DOAJ |
| description | In recent years, electric propulsion systems have become widely, used and these systems have strict limits in volume and weight. Therefore, it is necessary to reduce the weight of the inverter-motor drive system. In a typical <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>n</mi></semantics></math></inline-formula> inverter-motor drive system, at least <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>2</mn><mi>n</mi></mrow></semantics></math></inline-formula> phase current sensors are required. In order to reduce the number of phase current sensors, this paper proposes a method for measuring phase current using <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>n</mi><mo> </mo></mrow></semantics></math></inline-formula>DC link current sensors in a <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>2</mn><mi>n</mi></mrow></semantics></math></inline-formula> inverter-motor drive system. Two phase currents per inverter-motor system are measured during one period of the switching frequency using the pulse width modulation (PWM) shift method. However, since the measured phase current contains an error component in the average current, the error component was compensated for in order to obtain a current similar to the actual phase current by using the slope and dwell time of the phase current. The effectiveness of the proposed method is verified through experiments. |
| first_indexed | 2024-03-10T07:43:15Z |
| format | Article |
| id | doaj.art-27e75abf401b411da8ac898f74c8491d |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T07:43:15Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-27e75abf401b411da8ac898f74c8491d2023-11-22T12:50:28ZengMDPI AGEnergies1996-10732021-09-011418562610.3390/en14185626Phase Current Measurement Method of Dual Inverter-Motor Drive System Using a Single DC Link Current SensorSeon-Ik Hwang0Seong-Hyeon Cho1Jun-Hyung Jung2Jang-Mok Kim3Department of Electrical Engineering, Pusan National University, Busan 46241, KoreaAdvanced Electricfication Engineering Design Team, Hyundai Motor Company, Hwaseong 18280, KoreaChair of Power Electronics, Kiel University, 24143 Kiel, GermanyDepartment of Electrical Engineering, Pusan National University, Busan 46241, KoreaIn recent years, electric propulsion systems have become widely, used and these systems have strict limits in volume and weight. Therefore, it is necessary to reduce the weight of the inverter-motor drive system. In a typical <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>n</mi></semantics></math></inline-formula> inverter-motor drive system, at least <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>2</mn><mi>n</mi></mrow></semantics></math></inline-formula> phase current sensors are required. In order to reduce the number of phase current sensors, this paper proposes a method for measuring phase current using <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>n</mi><mo> </mo></mrow></semantics></math></inline-formula>DC link current sensors in a <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>2</mn><mi>n</mi></mrow></semantics></math></inline-formula> inverter-motor drive system. Two phase currents per inverter-motor system are measured during one period of the switching frequency using the pulse width modulation (PWM) shift method. However, since the measured phase current contains an error component in the average current, the error component was compensated for in order to obtain a current similar to the actual phase current by using the slope and dwell time of the phase current. The effectiveness of the proposed method is verified through experiments.https://www.mdpi.com/1996-1073/14/18/5626dual inverter-motor drivesingle DC link currentcurrent reconstructionPWM shiftSVPWM |
| spellingShingle | Seon-Ik Hwang Seong-Hyeon Cho Jun-Hyung Jung Jang-Mok Kim Phase Current Measurement Method of Dual Inverter-Motor Drive System Using a Single DC Link Current Sensor Energies dual inverter-motor drive single DC link current current reconstruction PWM shift SVPWM |
| title | Phase Current Measurement Method of Dual Inverter-Motor Drive System Using a Single DC Link Current Sensor |
| title_full | Phase Current Measurement Method of Dual Inverter-Motor Drive System Using a Single DC Link Current Sensor |
| title_fullStr | Phase Current Measurement Method of Dual Inverter-Motor Drive System Using a Single DC Link Current Sensor |
| title_full_unstemmed | Phase Current Measurement Method of Dual Inverter-Motor Drive System Using a Single DC Link Current Sensor |
| title_short | Phase Current Measurement Method of Dual Inverter-Motor Drive System Using a Single DC Link Current Sensor |
| title_sort | phase current measurement method of dual inverter motor drive system using a single dc link current sensor |
| topic | dual inverter-motor drive single DC link current current reconstruction PWM shift SVPWM |
| url | https://www.mdpi.com/1996-1073/14/18/5626 |
| work_keys_str_mv | AT seonikhwang phasecurrentmeasurementmethodofdualinvertermotordrivesystemusingasingledclinkcurrentsensor AT seonghyeoncho phasecurrentmeasurementmethodofdualinvertermotordrivesystemusingasingledclinkcurrentsensor AT junhyungjung phasecurrentmeasurementmethodofdualinvertermotordrivesystemusingasingledclinkcurrentsensor AT jangmokkim phasecurrentmeasurementmethodofdualinvertermotordrivesystemusingasingledclinkcurrentsensor |