Design of switched reluctance motor to reduce acoustic noise

Takayama, Koki; Miki, Ichiro

doi:10.1109/speedam.2016.7525830

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…Due to salient pole configuration and to magnetic saturation of the material, the machine characteristic is highly dependent on the rotor position and current. This characteristic is the reason for the high nonlinearity of the SRG which leads to torque ripple and acoustic noise [26]. In generator operation mode, the phase magnetization of the SRG is made in the negative slope of the inductance profile.…”

Section: Basic Principle Of Srg 21 Analysis Of Srg Operationmentioning

confidence: 99%

Improvement of Steady State Performance of Voltage Control in Switched Reluctance Generator: Experimental Validation

et al. 2022

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This paper presents a voltage control approach to a Switched Reluctance Generator (SRG) using a Proportional Integral (PI) controller. The principle of operation is described and the considerations in the design of controller are discussed. A current loop transfer function of an SRG with power converter has been systematically derived in order to obtain a small-signal model for the generator. The generated voltage is controlled by manipulation of the setpoint of the current control of the generator. The entire voltage loop controller and current control have been simulated and tested with a 250 W SRG prototype. The control law of the control system was implemented on a digital signal processor (TMS320F28379D). To verify the feasibility of the proposed voltage control, the performances are evaluated by numerical simulations and experimental tests with an 8/6 SRG for different rotational speeds and resistive loads. Experimental results demonstrate that the DC output voltage from SRG can be controlled well using a simple linear controller.

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Section: Basic Principle Of Srg 21 Analysis Of Srg Operationmentioning

confidence: 99%

Improvement of Steady State Performance of Voltage Control in Switched Reluctance Generator: Experimental Validation

et al. 2022

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“…Compared to conventional induction motors, as well as other emerging and high efficiency motor technologies, switched reluctance devices produce high levels of acoustical noise. In switched reluctance designs, "powerful radial force between the rotor and stator poles causes the vibration of the stator" (Takayama and Miki 2016). While research is progressing on design improvements to reduce noise levels, some level of this vibration is intrinsic to switched reluctance construction, and mitigation strategies carry tradeoffs of reduced efficiency (Correa et al 2011).…”

Section: Switched Reluctance Motorsmentioning

confidence: 99%

U.S. Industrial and Commercial Motor System Market Assessment Report Volume 2: Advanced Motors and Drives Supply Chain Review

Newkirk

Rao

Sheaffer

2021

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This report begins with a brief technical overview of motor technologies and some specific components and materials needed for their manufacture, followed by a supply chain analysis of emerging motor and drive technologies. The scope of this analysis includes electric motors for low to medium voltage (~1-1000 horsepower [hp]), industrial applications such as conveyors, extruders, pumps, compressors, blowers, refrigerators, and commercial heating, ventilation, and air-conditioning (HVAC). These stationary industrial and commercial electric motors account for 29% of total U.S. electrical energy use (Rao et al. 2021). Heavy industrial applications, including those from extractive industries (e.g., liquid natural gas pipeline compressors), are outside the scope of this report. Much of this review discusses the key resource inputs of these technologies.A key resource input refers to the most difficult-to-source component of a given motor. The focus on these key resource inputs informs which links in the supply chain are weakest. Note that sometimes key resource inputs are critical materials 1 or their derivatives, such as is the case of rare-earth permanent magnets, but in other cases, such as electrical steel, they are not. This report consists of two sections: a technical overview (Section 1) and a supply chain analysis (Section 2). There is some redundancy, to ensure that Section 2 does not require an exhaustive reading of Section 1.

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“…Elamin et al [17] investigated the effects of rectangular windows on the stator and rotor to suppress acoustic noise and vibration and determined the optimal position, length, and width of the rectangular windows. Takayama and Miki [18] studied the rotor pole with both cutting sides to reduce the maximum radial EMF and acoustic noise and used the hexagonal stator structure with the tapered pole to reduce the stator displacement. Kondelaji and Mirsalim [19] proposed a novel modular SRM using a pole combination mode, which has dual stators and segmented rotors.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on Vibration Performance of an Improved Switched Reluctance Machine with Double Auxiliary Slots

Gao

Wang

et al. 2021

Shock and Vibration

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Considerable vibration and acoustic noise limit the further application of Switched Reluctance Machine (SRM) due to its structural characteristics and working principle. An improved SRM model with double auxiliary slots (DAS) was proposed, in which the direction of the magnetic line of force was adjusted, and the radial magnetic density in the air gap was reduced by changing the local tooth profiles of the stator and the rotor. The effects of initial rotor position and turn-on angle and turn-off angle on radial Electromagnetic Force (EMF) and maximum torque were investigated. The results indicate the radial EMF and torque increase significantly with the advancement of the turn-on angle or the delay of the turn-off angle. In the orthogonal experimental design, initial rotor position, turn-on angle, and turn-off angle were taken as the factors, and the optimal set of parameters that minimized radial EMF was determined according to a greater output torque. In contrast to conventional SRM, the radial EMF of the SRM with DAS significantly reduces when the optimal set is applied.

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Design of switched reluctance motor to reduce acoustic noise

Cited by 7 publications

References 9 publications

Improvement of Steady State Performance of Voltage Control in Switched Reluctance Generator: Experimental Validation

Improvement of Steady State Performance of Voltage Control in Switched Reluctance Generator: Experimental Validation

U.S. Industrial and Commercial Motor System Market Assessment Report Volume 2: Advanced Motors and Drives Supply Chain Review

Numerical Investigation on Vibration Performance of an Improved Switched Reluctance Machine with Double Auxiliary Slots

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