A PAM inverter system for vector control of induction motor

Taniguchi, K.; Okumura, Akihiko

doi:10.1109/pccon.1993.264208

Cited by 13 publications

(6 citation statements)

References 3 publications

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“…Research and development activities in high-speed turbo compressors usually focus on the turbo compressor only, while the total compressor system including the inverter is neglected. On the other hand, research on the inverter side mainly focuses on the control of high-speed drives and not on the high power density and/or high efficiency of variable-speed drive systems (Taniguchi and Okumura, 1993;Kim and Youn, 2002;Zwyssig et al, 2007;Zwyssig et al, 2009). Therefore, this paper presents a novel fuel cell air compressor with the lowest overall system weight and size.…”

Section: Introductionmentioning

confidence: 99%

Novel High-Speed Turbo Compressor With Integrated Inverter for Fuel Cell Air Supply

Antivachis

Dietz²,

Zwyssig³

et al. 2021

Front. Mech. Eng.

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Fuel cell technology is continuously gaining ground in E-mobility applications. Fuel cells require a constant supply of pressurized air, for which high-speed turbo compressors with air bearings are an optimal choice to reduce size, guarantee oil-free operation required for the lifetime of the fuel cell, and increase efficiency. However, the inverter driving the electric motor of the turbo compressor does not scale down with increasing speed; therefore, other technology advances are required to achieve an overall compressor system with low weight. New power electronic topologies (double-bridge voltage sources inverter), cutting edge power semiconductor technology (gallium nitride), and multiobjective optimization techniques allow reducing the inverter size, increasing inverter efficiency, and improving the output current quality and in return lowering the losses in the electric motor. This enables the electrical, mechanical, and thermal integration of the inverter into the compressor housing of very high-speed and compact turbo compressors, thereby reducing the size and weight of the overall compressor system by a factor of two. Furthermore, a turbo compressor with an integrated inverter reduces complexity and cost for operators with savings in casing, cables, coolant piping, and connectors and reduces EMI noise by shielding the high-frequency motor currents with one housing. Beside its main application for fuel cell air supply, the advantages gained by an integrated inverter can also be used in other boosting and air handling applications such as advanced air and exhaust handling in combustion engines. The proposed integration concept is verified with a 280,000 rpm, 1 kW turbo compressor, targeted for the Balance of Plant (BoP) of a 5–15 kW fuel cell. The experimental results show that the temperature limits on the power electronics parts can be kept below the limit of 90 °C up to a coolant temperature of 55 °C, and beside the advantage of lower cabling effort, the efficiency of the compressor system (turbo compressor and integrated inverter) is increased by 5.5% compared to a turbo compressor without an integrated inverter.

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Section: Introductionmentioning

confidence: 99%

Novel High-Speed Turbo Compressor With Integrated Inverter for Fuel Cell Air Supply

Antivachis

Dietz²,

Zwyssig³

et al. 2021

Front. Mech. Eng.

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“…However, due to the limited number of turns in high-speed PMSM machines, the resulting inductance is typically quite small. When traditional 2L inverters with medium switching frequencies (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) are employed, the current ripple of the phase current can become very high. In ref.…”

Section: Introductionmentioning

confidence: 99%

“…The concept of a pulse amplitude modulation (PAM) inverter was first proposed in ref. [18]. In PAM inverters, the input dc‐link voltage is regulated by the buck converter, while the inverter stage is only switched at fundamental frequencies.…”

Section: Introductionmentioning

confidence: 99%

A new three‐level simplified sparce NPC topology for UHS PMSM motor applications

Sheianov,

Xiao,

Sun

2023

IET Electric Power Appl

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In ultra‐high speed (UHS) motor applications, full SIC two‐level (2L) inverters with high switching frequencies are generally used due to their lower cost. However, even with the usage of all WBG power devices, high‐frequency hard‐switched 2L inverters still do not achieve optimal efficiency characteristics. As a result, in order to simultaneously reduce the switching frequency and enhance overall efficiency, recently three‐level (3L) topologies have emerged as a promising solution. Nevertheless, to fully meet the requirements of UHS applications, the switching frequency of 3L inverters should be increased beyond 30 kHz, which necessitates the usage of all SIC power devices. This, in turn, leads to a potential drawback where the cost of the drive system may become prohibitively high due to the requirement of all SIC switches. To address this issue and reduce the cost of a full SIC 3L inverter, a new 3L simplified sparse NPC (SSNPC) topology is proposed in this work. The operational principle of this topology, its distinctive control features, and the advantages it offers specifically for UHS applications are presented. Additionally, to further increase the efficiency and reduce the influence of dead time at low speeds, a new switching sequence is introduced. Finally, the overall performance and efficiency characteristics of the high‐frequency SSNPC inverter were verified across all operational conditions of UHS motor drive system.

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“…However, there are many techniques to reduce the THD levels of the PWM based inverters such as sine-triangle wave comparison method [6] and selective harmonic elimination method (SHEM) [7]. In order to close the output voltage wave form to sine wave, pulse amplitude modulation (PAM) inverters are developed as an alternative instead of PWM inverters [8]. In PAM inverters, various voltage steps are produced through series connected more than one inverters or cascade connected capacitor sets.…”

Section: Introductionmentioning

confidence: 99%

A New Single Phase Inverter Based on Buck Converter

Yalçın¹,

Arifoğlu

Yazıcı

2020

Sakarya University Journal of Science

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In this paper, a new single phase inverter is proposed. The proposed inverter topology is obtained through modifying the well-known DC-DC buck converter to produce sine wave alternative voltage at the output. Thus, the peak value of the alternative output voltage can be provided lower than the input direct voltage value. The inverter is designed for producing alternative voltage at the output in the frequency range of 0-50 Hz. PI feedback controller is used for the control of the inverter operation. A simulation study is done for the proposed inverter and its operation in MATLAB-Simulink in order to prove its accuracy on different operation conditions. The results demonstrate that the proposed inverter can accurately produce nearly sine wave alternative voltage in various frequencies with low THD values on different operation conditions.

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A PAM inverter system for vector control of induction motor

Cited by 13 publications

References 3 publications

Novel High-Speed Turbo Compressor With Integrated Inverter for Fuel Cell Air Supply

Novel High-Speed Turbo Compressor With Integrated Inverter for Fuel Cell Air Supply

A new three‐level simplified sparce NPC topology for UHS PMSM motor applications

A New Single Phase Inverter Based on Buck Converter

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