Inverter Temperature Monitoring of Cordless Tool Motor Drives

Dianov, Anton

doi:10.1109/ojies.2023.3235357

Cited by 4 publications

(2 citation statements)

References 43 publications

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“…All these sensor signals are sampled and digitalized by a built-in ADC [50], which has a 12-bit resolution. In order to decrease the fault reaction time, the threshold feature of the ADC [51] is involved in the processing of these signals. Unfortunately, the low-cost MCU has a shortage of RAM, which makes it impossible to implement a digital oscilloscope and monitor the internal variables.…”

Section: Methodsmentioning

confidence: 99%

Comparison of Feedback Field-Weakening Techniques for Synchronous Machines with Permanent Magnets

Dianov

2023

Vehicles

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In recent decades the market share of electrical cars has increased significantly, which has paved the way for the development of automotive electronics. Some of the most important parts of modern electrical vehicles are motor drives, which are used in car training and mechanization. Electrical drives are used in powertrains for traction, in air conditioning systems to cool cars and their parts, in doors for opening/closing as well as window movements, etc. The most popular motor type in electrical vehicles is synchronous motors with permanent magnets, which are compact and provide high torque. However, these motors require the development of control systems for proper operation. This system has to have the capacity to implement several state-of-the-art techniques, which can fully utilize motor potential, increase its efficiency, and decrease battery usage. One of these techniques is field-weakening, which overcomes speed limitations due to a lack of supply voltage and increases the motor’s speed operation range. This paper discusses the most popular approaches to field-weakening, including a new method proposed by the author. It considers both the pros and cons of each approach and provides recommendations for their usage. After that, this manuscript demonstrates the experimental results of each field-weakening technique obtained in the same motor drive, compares their performance, and discusses their strengths and weaknesses. Finally, the experimental part demonstrates that the proposed field-weakening approach demonstrates similar dynamics in load transients but provides 10 times less load to the microcontroller.

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Section: Methodsmentioning

confidence: 99%

Comparison of Feedback Field-Weakening Techniques for Synchronous Machines with Permanent Magnets

Dianov

2023

Vehicles

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“…Yang et al [2] reported that 31% of all component failures in power converters are related to semiconductor faults whereas 55% of IGBTs are failed due to the temperature impact [3]. Therefore, the thermal analysis of the power devices attracts much attention in order to improve the semiconductor thermal management and extend understanding of its thermal behaviour [4]- [6].…”

Section: Introductionmentioning

confidence: 99%

A Test Rig for Thermal Analysis of Heat Sinks for Power Electronic Applications

Sharp,

Monir,

Day

et al. 2023

2023 IEEE East-West Design &Amp; Test Symposium (EWDTS)

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This paper discusses the design and manufacture of a test rig for practical thermal analysis of the temperature distribution across forced air-cooled heat sinks. Hightemperature gradients across power electronic modules that have a large area of semiconductor structure can result in premature failure of the components due to mechanical stressrelated fatigue. Computer modelling and simulations predict the temperature distribution across the heat sink, but physical temperature measurements are required to validate these results. In order to acquire these temperature readings, a bespoke test rig is designed and manufactured. Temperature readings obtained using this test rig are applied for comparison to those obtained by computer simulation and, hence provide validation of the computer simulation results.

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