Pub Date : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213581
Wenxia Chen, Wenjie Chen, Pengfei Ren, Rui Cheng
While silicon carbide devices miniaturize power electronic devices, they bring more serious EMI problems. This paper proposes a switching model for noise source EMI spectral prediction, which is a key prerequisite for accurate prediction in terms of electronic magnetic interference (EMI). Compared with the asymmetric trapezoidal wave, the modeling of the step-by-step switch with oscillation stage can better reflect the switching characteristics. In addition, the junction capacitance and transfer characteristics have a certain influence on the rise time, fall time and oscillation of the switch, and also affect the noise spectra in different frequency bands. Considering the actual switching process, the effect of junction capacitance and transfer characteristics on the switching oscillation process and the EMI problem of its corresponding frequency band is studied.
{"title":"Impact of Junction Capacitor and Transfer characteristic on EMI prediction","authors":"Wenxia Chen, Wenjie Chen, Pengfei Ren, Rui Cheng","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213581","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213581","url":null,"abstract":"While silicon carbide devices miniaturize power electronic devices, they bring more serious EMI problems. This paper proposes a switching model for noise source EMI spectral prediction, which is a key prerequisite for accurate prediction in terms of electronic magnetic interference (EMI). Compared with the asymmetric trapezoidal wave, the modeling of the step-by-step switch with oscillation stage can better reflect the switching characteristics. In addition, the junction capacitance and transfer characteristics have a certain influence on the rise time, fall time and oscillation of the switch, and also affect the noise spectra in different frequency bands. Considering the actual switching process, the effect of junction capacitance and transfer characteristics on the switching oscillation process and the EMI problem of its corresponding frequency band is studied.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115156458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213802
Kohei Budo, T. Takeshita
This paper presents the output power control for a unidirectional isolated secondary-resonant AC-DC (SR-AC-DC) converter using the Pulse Amplitude Modulation (PAM) of the high-frequency voltage. The proposed SR-AC-DC converter consists of the primary modular matrix converter (MMxC), the high-frequency transformer, and the secondary diode-rectifier-circuit with the resonant capacitors. The proposed AC-DC converter directly converts a medium-voltage power source to a DC voltage using the MMxC. Therefore, the proposed AC-DC converter can achieve a high-efficient and downsized converter for high-power applications. In the proposed control method, the output power of the proposed circuit can be controlled by changing the amplitude of the primary voltage. The proposed control method is simple output power control using only one parameter such as the amplitude of the primary voltage. The stable transient characteristics is obtained. The effectiveness of the proposed control method is verified by the experiments using the 200 V-6 kW laboratory prototypes.
{"title":"Output Power Control for Isolated Secondary-Resonant AC-DC Modular Matrix Converter Using Pulse Amplitude Modulation","authors":"Kohei Budo, T. Takeshita","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213802","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213802","url":null,"abstract":"This paper presents the output power control for a unidirectional isolated secondary-resonant AC-DC (SR-AC-DC) converter using the Pulse Amplitude Modulation (PAM) of the high-frequency voltage. The proposed SR-AC-DC converter consists of the primary modular matrix converter (MMxC), the high-frequency transformer, and the secondary diode-rectifier-circuit with the resonant capacitors. The proposed AC-DC converter directly converts a medium-voltage power source to a DC voltage using the MMxC. Therefore, the proposed AC-DC converter can achieve a high-efficient and downsized converter for high-power applications. In the proposed control method, the output power of the proposed circuit can be controlled by changing the amplitude of the primary voltage. The proposed control method is simple output power control using only one parameter such as the amplitude of the primary voltage. The stable transient characteristics is obtained. The effectiveness of the proposed control method is verified by the experiments using the 200 V-6 kW laboratory prototypes.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123156485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213659
Yerin Lee, J. Jeon, Paul Jang
Generally, when designing a symmetrical half-bridge converter, the rectifier on the secondary side is composed of a full-bridge rectifier or a center-tap rectifier to take advantage of the full-wave rectifier (FWR). However, when driving with asymmetrical PWM, the benefit of full-wave rectification due to symmetric operation is lost, so a half-wave rectifier (HWR) can be introduced to cope with low-voltage and high-current applications. Furthermore, if an HWR is used with an asymmetrical half-bridge converter (AHBC), the soft switching characteristics of the AHBC can be improved while maintaining appropriate conduction loss. It is because the transformer current has a negative average with the reduced duty cycle loss due to the operation characteristics of HWR. Accordingly, this study examines the superiority of an AHBC with HWR in an efficiency aspect compared to the case of using FWR through the operation characteristic analysis. The validity of the analysis is verified through experiments with a 360-W prototype.
{"title":"Operation Characteristic Analysis of an Asymmetrical Half-Bridge Converter with Half-Wave Rectifier","authors":"Yerin Lee, J. Jeon, Paul Jang","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213659","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213659","url":null,"abstract":"Generally, when designing a symmetrical half-bridge converter, the rectifier on the secondary side is composed of a full-bridge rectifier or a center-tap rectifier to take advantage of the full-wave rectifier (FWR). However, when driving with asymmetrical PWM, the benefit of full-wave rectification due to symmetric operation is lost, so a half-wave rectifier (HWR) can be introduced to cope with low-voltage and high-current applications. Furthermore, if an HWR is used with an asymmetrical half-bridge converter (AHBC), the soft switching characteristics of the AHBC can be improved while maintaining appropriate conduction loss. It is because the transformer current has a negative average with the reduced duty cycle loss due to the operation characteristics of HWR. Accordingly, this study examines the superiority of an AHBC with HWR in an efficiency aspect compared to the case of using FWR through the operation characteristic analysis. The validity of the analysis is verified through experiments with a 360-W prototype.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125225957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213527
Qiucen Tao, J. Geis-Schroer, Maëva Courcelle, T. Leibfried, G. D. Carne
The increasing penetration of power electronic-based or -interfaced resources and loads leads to a reduction in the overall system inertia. As a result, the modern power network can experience faster and larger frequency changes under power imbalances. This highlights the importance of a better assessment of network parameters, such as the frequency dependency of loads and active resources. So far, studies on load behavior have mainly focused on voltage dependency, and very few have investigated frequency dependency. The frequency dependency parameters used in recent publications are still mainly results obtained between 1940 and 1980. Load technology has changed since. Therefore, this paper focuses on the identification of the frequency dependency of modern passive residential loads and active resources through experiments on real appliances. For this purpose, the perturbation-based identification method is used: an apartment-like laboratory is supplied by a three-phase voltage amplifier to create artificial frequency variations. The frequency dependency is then calculated from the recorded power responses.
{"title":"Investigation of Frequency Dependency of Residential Loads in Modern Power Systems: An Experimental Approach","authors":"Qiucen Tao, J. Geis-Schroer, Maëva Courcelle, T. Leibfried, G. D. Carne","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213527","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213527","url":null,"abstract":"The increasing penetration of power electronic-based or -interfaced resources and loads leads to a reduction in the overall system inertia. As a result, the modern power network can experience faster and larger frequency changes under power imbalances. This highlights the importance of a better assessment of network parameters, such as the frequency dependency of loads and active resources. So far, studies on load behavior have mainly focused on voltage dependency, and very few have investigated frequency dependency. The frequency dependency parameters used in recent publications are still mainly results obtained between 1940 and 1980. Load technology has changed since. Therefore, this paper focuses on the identification of the frequency dependency of modern passive residential loads and active resources through experiments on real appliances. For this purpose, the perturbation-based identification method is used: an apartment-like laboratory is supplied by a three-phase voltage amplifier to create artificial frequency variations. The frequency dependency is then calculated from the recorded power responses.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116985110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213879
Jaehoon Choi, Y. Suh
This paper introduces a control scheme for voltage support in a grid-connected 3-level NPC converter experiencing generalized grid fault conditions. In a grid fault conditions, the grid-connected converter must compensate for reactive power in order to stabilize the voltage in accordance with the grid code. The conventional instantaneous reactive power equation does not fit under unbalanced conditions. Therefore, smooth reactive power compensation may be difficult. In this paper, propose a new control method based on the newly defined reactive power equation. When reactive power is applied in a grid fault conditions, the proposed control method is compared with the conventional control method. It has been verified that the proposed control method has better voltage compensation capability in simulation result.
{"title":"Advanced Voltage Support Control Method in Grid-connected 3-level NPC Converter under Grid Fault Conditions","authors":"Jaehoon Choi, Y. Suh","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213879","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213879","url":null,"abstract":"This paper introduces a control scheme for voltage support in a grid-connected 3-level NPC converter experiencing generalized grid fault conditions. In a grid fault conditions, the grid-connected converter must compensate for reactive power in order to stabilize the voltage in accordance with the grid code. The conventional instantaneous reactive power equation does not fit under unbalanced conditions. Therefore, smooth reactive power compensation may be difficult. In this paper, propose a new control method based on the newly defined reactive power equation. When reactive power is applied in a grid fault conditions, the proposed control method is compared with the conventional control method. It has been verified that the proposed control method has better voltage compensation capability in simulation result.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117345445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Global Vehicle OEM’s are raising the battery voltage to increase the mileage of electric vehicles and reduce the battery charging time. A bidirectional on-board charger (OBC) is also required for Vehicle to Grid (V2G) and Vehicle to Load (V2L) operation. Recently, ICCU (Integrated Charging Control Unit), a product that integrates OBC and LDC (Low-Voltage DC/DC Converter) circuit and housing, has been developed. In this paper, we propose LLC/CLLC bidirectional DC/DC converter for OBC circuit in 800V battery system. In forward mode, it operates as LLC full-bridge resonant converter to achieve a wide output voltage range. In reverse mode, the DC link voltage can be designed to be lower than in forward mode by operating as a CLLC half-bridge resonant converter. The proposed converter uses SiC-MOSFET, so it satisfies high voltage and is implemented in a small package. The 11 kW prototype of the proposed bidirectional resonant converter was built and tested to verify the proposed operation.
全球汽车OEM厂商都在提高电池电压，以增加电动汽车的行驶里程，减少电池充电时间。车辆对电网(V2G)和车辆对负载(V2L)操作也需要双向车载充电器(OBC)。最近，集成了OBC和LDC(低压DC/DC转换器)电路和外壳的产品ICCU (Integrated Charging Control Unit)问世了。本文提出了一种用于800V电池系统OBC电路的LLC/CLLC双向DC/DC变换器。在正向模式下，它作为LLC全桥谐振变换器工作，以实现宽输出电压范围。在反向模式下，作为CLLC半桥谐振变换器，可以将直流链路电压设计为低于正向模式。所提出的转换器采用SiC-MOSFET，因此它满足高电压并且在小封装中实现。建立了11 kW的双向谐振变换器原型，并对其进行了测试，以验证所提出的操作。
{"title":"Bi-directional Operation Mode of LLC/CLLC DC/DC Converter for On Board Charger of 800V Battery Systems","authors":"Anyeol Jung, Dongok Moon, Changkyu Bai, Jong-Ho Jang, Minseuk Oh, Sanghyun Lee, Sunmin Hwang, Hyung-Rae Moon","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213471","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213471","url":null,"abstract":"Global Vehicle OEM’s are raising the battery voltage to increase the mileage of electric vehicles and reduce the battery charging time. A bidirectional on-board charger (OBC) is also required for Vehicle to Grid (V2G) and Vehicle to Load (V2L) operation. Recently, ICCU (Integrated Charging Control Unit), a product that integrates OBC and LDC (Low-Voltage DC/DC Converter) circuit and housing, has been developed. In this paper, we propose LLC/CLLC bidirectional DC/DC converter for OBC circuit in 800V battery system. In forward mode, it operates as LLC full-bridge resonant converter to achieve a wide output voltage range. In reverse mode, the DC link voltage can be designed to be lower than in forward mode by operating as a CLLC half-bridge resonant converter. The proposed converter uses SiC-MOSFET, so it satisfies high voltage and is implemented in a small package. The 11 kW prototype of the proposed bidirectional resonant converter was built and tested to verify the proposed operation.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127497200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213646
Seungjin-Jo, Guangyao Li, Junchen Xie, Chang-Su Shin, Dong-Hee Kim
Wireless charging pad, which is a key design part of the inductive power transfer (IPT) system, has high voltage and current characteristics, and since resulting losses account for the largest proportion of the entire system, an accurate experimental verification should be required. This paper proposes a method to obtain the same wireless charging pad voltage and current stress in a limited test environment by reconfiguring the resonant network of the IPT system. The proposed method allows experiments in a limited laboratory environment by flexibly designing input/output characteristics. The validity of the proposed method is verified through a 2-kW prototype experiment.
{"title":"Topology Reconfiguration Method for IPT Pad Stress Measurement in a Limited Laboratory Environment","authors":"Seungjin-Jo, Guangyao Li, Junchen Xie, Chang-Su Shin, Dong-Hee Kim","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213646","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213646","url":null,"abstract":"Wireless charging pad, which is a key design part of the inductive power transfer (IPT) system, has high voltage and current characteristics, and since resulting losses account for the largest proportion of the entire system, an accurate experimental verification should be required. This paper proposes a method to obtain the same wireless charging pad voltage and current stress in a limited test environment by reconfiguring the resonant network of the IPT system. The proposed method allows experiments in a limited laboratory environment by flexibly designing input/output characteristics. The validity of the proposed method is verified through a 2-kW prototype experiment.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125918004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213667
Chandrima Chatterjee, S. Neupane, S. Nag, A. Das, W. Greenbank, Luciana Tavares, T. Ebel
This paper proposes a grid-tied isolated low-voltage battery charging system. The ac-dc conversion stage is line frequency switched with ZVS capability and reduced grid filter requirement. The rectification is done by a three-level T-type neutral point clamped converter followed by a balancer circuit for power-factor correction. The dc-dc stage is a phase-shifted full-bridge converter which ensures high-frequency galvanic isolation. The rectification is done in such a way that pulsed dc voltage is obtained at the output of the T-type converter that reduces dc link capacitor requirement significantly. A new high-voltage polymer aluminium electrolytic capacitor technology has been proposed instead of conventional metalized film capacitors which leads to a more compact design. The switches in the ac-dc stage and dc-dc stage undergo zero-voltage-switching which improves the system efficiency. The control strategy of different stages and the simulation results for a 2 kW system is discussed here.
{"title":"An Isolated Grid-Connected Charger with Reduced DC-Link Capacitor and Grid Filter Requirement","authors":"Chandrima Chatterjee, S. Neupane, S. Nag, A. Das, W. Greenbank, Luciana Tavares, T. Ebel","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213667","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213667","url":null,"abstract":"This paper proposes a grid-tied isolated low-voltage battery charging system. The ac-dc conversion stage is line frequency switched with ZVS capability and reduced grid filter requirement. The rectification is done by a three-level T-type neutral point clamped converter followed by a balancer circuit for power-factor correction. The dc-dc stage is a phase-shifted full-bridge converter which ensures high-frequency galvanic isolation. The rectification is done in such a way that pulsed dc voltage is obtained at the output of the T-type converter that reduces dc link capacitor requirement significantly. A new high-voltage polymer aluminium electrolytic capacitor technology has been proposed instead of conventional metalized film capacitors which leads to a more compact design. The switches in the ac-dc stage and dc-dc stage undergo zero-voltage-switching which improves the system efficiency. The control strategy of different stages and the simulation results for a 2 kW system is discussed here.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"128 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126058103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213491
Shin-Ju Chen, Sung-Pei Yang, Chao-Ming Huang, P. Huang, Cheng-Hsuan Chiu
A new high voltage gain interleaved DC-DC converter is proposed for the renewable energy systems. The configuration is composed of two-phase boost converter integrating a voltage-lift capacitor and three-winding coupled-inductor-based voltage multiplier modules to achieve high voltage gain without operating at extreme duty ratio. The switch voltage stress is greatly lower than the output voltage such that MOSFETs with low on-resistance are available to reduce the conduction losses. Due to the leakage inductances of the coupled inductors, the switches can turn on with zero-current switching (ZCS), and the diode reverse-recovery problem is alleviated. The input current ripple is decreased due to the interleaved operation. The operational principle, steady-state analysis and design considerations of the proposed converter is presented. In addition, a closed-loop controller is designed to. Finally, experimental a 1000 W prototype with 24-400 V conversion is built and tested to validate the performance of the proposed converter.
{"title":"High Voltage Gain Interleaved DC-DC Converter with Voltage-Lift and Three-Winding Coupled-Inductor Techniques","authors":"Shin-Ju Chen, Sung-Pei Yang, Chao-Ming Huang, P. Huang, Cheng-Hsuan Chiu","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213491","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213491","url":null,"abstract":"A new high voltage gain interleaved DC-DC converter is proposed for the renewable energy systems. The configuration is composed of two-phase boost converter integrating a voltage-lift capacitor and three-winding coupled-inductor-based voltage multiplier modules to achieve high voltage gain without operating at extreme duty ratio. The switch voltage stress is greatly lower than the output voltage such that MOSFETs with low on-resistance are available to reduce the conduction losses. Due to the leakage inductances of the coupled inductors, the switches can turn on with zero-current switching (ZCS), and the diode reverse-recovery problem is alleviated. The input current ripple is decreased due to the interleaved operation. The operational principle, steady-state analysis and design considerations of the proposed converter is presented. In addition, a closed-loop controller is designed to. Finally, experimental a 1000 W prototype with 24-400 V conversion is built and tested to validate the performance of the proposed converter.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116564199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213907
Y. Yamano, K. Akatsu
Torque ripple reduction in PMSM(Permanent Magnet Synchronous Motor) for EVs drive motors is one of the technologies that reduce vibration. Torque ripple reduction techniques require accurate torque ripple modeling and estimation of motor parameters considering magnetic saturation and magnet temperature variation. Existing approaches that consider magnetic saturation and magnet temperature variation are complex and difficult to implement. Therefore, this study uses phasers to represent torque ripples. This allowed us to represent the torque ripple geometrically and to determine the harmonic currents for torque ripple reduction in a simplified manner. This method is also extended to vibration suppression by measuring vibration using an acceleration sensor. In this paper, experimental results of 6th and 12th order vibration suppression are presented by using the determination method of the harmonic current commands. From these results, vibration can be suppressed by installing an acceleration sensor at locations where vibration is to be suppressed.
{"title":"6th and 12th order vibration suppression of IPMSM by harmonic current injection","authors":"Y. Yamano, K. Akatsu","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213907","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213907","url":null,"abstract":"Torque ripple reduction in PMSM(Permanent Magnet Synchronous Motor) for EVs drive motors is one of the technologies that reduce vibration. Torque ripple reduction techniques require accurate torque ripple modeling and estimation of motor parameters considering magnetic saturation and magnet temperature variation. Existing approaches that consider magnetic saturation and magnet temperature variation are complex and difficult to implement. Therefore, this study uses phasers to represent torque ripples. This allowed us to represent the torque ripple geometrically and to determine the harmonic currents for torque ripple reduction in a simplified manner. This method is also extended to vibration suppression by measuring vibration using an acceleration sensor. In this paper, experimental results of 6th and 12th order vibration suppression are presented by using the determination method of the harmonic current commands. From these results, vibration can be suppressed by installing an acceleration sensor at locations where vibration is to be suppressed.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122324119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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