Reduction in DC-Link Capacitor Current by Phase Shifting Method for a Dual Three-Phase Voltage Source Inverters Dual Permanent Magnet Synchronous Motors System
This paper presents a carrier waves phase shifting method to reduce the dc-link capacitor current for a dual three-phase permanent magnet synchronous motor drive system. Dc-link capacitors absorb the ripple current generated at the input due to the harmonics of the pulse width modulation (PWM). The...
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MDPI AG
2025-01-01
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| Series: | World Electric Vehicle Journal |
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| Online Access: | https://www.mdpi.com/2032-6653/16/1/39 |
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| author | Deniz Şahin Bülent Dağ |
| author_facet | Deniz Şahin Bülent Dağ |
| author_sort | Deniz Şahin |
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| description | This paper presents a carrier waves phase shifting method to reduce the dc-link capacitor current for a dual three-phase permanent magnet synchronous motor drive system. Dc-link capacitors absorb the ripple current generated at the input due to the harmonics of the pulse width modulation (PWM). The size, cost, reliability, and lifetime of the dc-link capacitor are negatively affected by this ripple current flowing through it. The proposed method is especially appropriate for common dc-link capacitors for a dual inverter system driving two PMSMs. In this paper, the input current of each inverter is analyzed using Double Fourier Analysis, and the harmonic components of the dc-link capacitor current are determined. The carrier wave phase shifting method is proposed to reduce the magnitude of the harmonics and thus reduce the dc-link capacitor current. Furthermore, the optimum angle between the carrier waves for the maximum reduction in the dc-link capacitor current is analyzed and simulated for different scenarios considering the speed and load torque of the PMSMs. The proposed method is verified through experiments and PMSMs are driven by three-phase voltage source inverters (VSIs) modulated with Space Vector Pulse Width Modulation (SVPWM), which is the most common PWM strategy. The proposed method reduces the dc-link capacitor current by 60%, thereby significantly decreasing the required dc-link capacitance, the volume of the drive system, and its cost. |
| format | Article |
| id | doaj-art-1876b158f9f7421d956c4ca9fccb6c76 |
| institution | Kabale University |
| issn | 2032-6653 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | World Electric Vehicle Journal |
| spelling | doaj-art-1876b158f9f7421d956c4ca9fccb6c762025-01-24T13:52:51ZengMDPI AGWorld Electric Vehicle Journal2032-66532025-01-011613910.3390/wevj16010039Reduction in DC-Link Capacitor Current by Phase Shifting Method for a Dual Three-Phase Voltage Source Inverters Dual Permanent Magnet Synchronous Motors SystemDeniz Şahin0Bülent Dağ1Department of Electrical and Electronic Engineering, Gazi University, 06839 Ankara, TurkeyDepartment of Electrical and Electronic Engineering, Gazi University, 06839 Ankara, TurkeyThis paper presents a carrier waves phase shifting method to reduce the dc-link capacitor current for a dual three-phase permanent magnet synchronous motor drive system. Dc-link capacitors absorb the ripple current generated at the input due to the harmonics of the pulse width modulation (PWM). The size, cost, reliability, and lifetime of the dc-link capacitor are negatively affected by this ripple current flowing through it. The proposed method is especially appropriate for common dc-link capacitors for a dual inverter system driving two PMSMs. In this paper, the input current of each inverter is analyzed using Double Fourier Analysis, and the harmonic components of the dc-link capacitor current are determined. The carrier wave phase shifting method is proposed to reduce the magnitude of the harmonics and thus reduce the dc-link capacitor current. Furthermore, the optimum angle between the carrier waves for the maximum reduction in the dc-link capacitor current is analyzed and simulated for different scenarios considering the speed and load torque of the PMSMs. The proposed method is verified through experiments and PMSMs are driven by three-phase voltage source inverters (VSIs) modulated with Space Vector Pulse Width Modulation (SVPWM), which is the most common PWM strategy. The proposed method reduces the dc-link capacitor current by 60%, thereby significantly decreasing the required dc-link capacitance, the volume of the drive system, and its cost.https://www.mdpi.com/2032-6653/16/1/39carrier waves phase shiftingSVPWMdc-link capacitorthree-phase VSIdual PMSMsdouble Fourier series |
| spellingShingle | Deniz Şahin Bülent Dağ Reduction in DC-Link Capacitor Current by Phase Shifting Method for a Dual Three-Phase Voltage Source Inverters Dual Permanent Magnet Synchronous Motors System World Electric Vehicle Journal carrier waves phase shifting SVPWM dc-link capacitor three-phase VSI dual PMSMs double Fourier series |
| title | Reduction in DC-Link Capacitor Current by Phase Shifting Method for a Dual Three-Phase Voltage Source Inverters Dual Permanent Magnet Synchronous Motors System |
| title_full | Reduction in DC-Link Capacitor Current by Phase Shifting Method for a Dual Three-Phase Voltage Source Inverters Dual Permanent Magnet Synchronous Motors System |
| title_fullStr | Reduction in DC-Link Capacitor Current by Phase Shifting Method for a Dual Three-Phase Voltage Source Inverters Dual Permanent Magnet Synchronous Motors System |
| title_full_unstemmed | Reduction in DC-Link Capacitor Current by Phase Shifting Method for a Dual Three-Phase Voltage Source Inverters Dual Permanent Magnet Synchronous Motors System |
| title_short | Reduction in DC-Link Capacitor Current by Phase Shifting Method for a Dual Three-Phase Voltage Source Inverters Dual Permanent Magnet Synchronous Motors System |
| title_sort | reduction in dc link capacitor current by phase shifting method for a dual three phase voltage source inverters dual permanent magnet synchronous motors system |
| topic | carrier waves phase shifting SVPWM dc-link capacitor three-phase VSI dual PMSMs double Fourier series |
| url | https://www.mdpi.com/2032-6653/16/1/39 |
| work_keys_str_mv | AT denizsahin reductionindclinkcapacitorcurrentbyphaseshiftingmethodforadualthreephasevoltagesourceinvertersdualpermanentmagnetsynchronousmotorssystem AT bulentdag reductionindclinkcapacitorcurrentbyphaseshiftingmethodforadualthreephasevoltagesourceinvertersdualpermanentmagnetsynchronousmotorssystem |