Starting Performance Improvement of Line-Start Permanent-Magnet Synchronous Motor Using Composite Solid Rotor

Yan, Bingji; Wang, Xiuhe; Yang, Yubo

doi:10.1109/tmag.2017.2753238

Cited by 40 publications

(24 citation statements)

References 14 publications

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“…6. For the sake of detailed discussion on the high-capacity and low-speed LSPMSM, the average torque, which is composed of the cage and PM braking torques [12,25], is calculated using FEA [1,5,26], as shown in Fig. 7.…”

Section: Analysis Of the Start-up Processmentioning

confidence: 99%

“…Owing to their excellent performance in terms of high efficiency, high-power factor, and self-starting ability, line-start permanent magnet synchronous motors (LSPMSMs) have been largely considered by researchers. However, a conflict [1][2][3][4] exists between the start-up and synchronisation processes. A large value of magnetising inductance can improve the start-up, but it also deteriorates the synchronisation of LSPMSMs [2].…”

Section: Introductionmentioning

confidence: 99%

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Design and control of high‐capacity and low‐speed doubly fed start‐up permanent magnet synchronous motor

Gao

Wang

Wei

2018

IET Electric Power Applications

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A novel rotor structure with a set of compensation winding for line-start permanent magnet synchronous motors for high capacity and low speed, which can meet the requirements of a ball mill with a high moment of inertia, is proposed to improve the motor-starting performance. A control strategy for the compensation winding current is implemented to increase the synchronisation ability with a high-inertia load. The compensation current and its control method are analysed using a mathematical model and verified using a time-step finite-element analysis. The simulation shows that the permanent magnet motor proposed in this study can successfully start at a load of 15 times rotor inertia.

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Section: Analysis Of the Start-up Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and control of high‐capacity and low‐speed doubly fed start‐up permanent magnet synchronous motor

Gao

Wang

Wei

2018

IET Electric Power Applications

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“…This has hindered broad dissemination of LSSMs in industrial applications where two or more operating speeds are required. Despite the advances on the starting and steady-state performance of such motors [4][5][6][7][8][9][10][11], the fixed single-speed restriction is still in place. Recently, there have been some studies on the design of two-speed LSSMs [12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Design improvement of dual‐pole LSPM synchronous motor

Ghoroghchian

Aliabad

Amiri

2019

IET Electric Power Applications

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This article presents a design improvement of the dual-pole, two-speed line start permanent magnet (LSPM) synchronous motor. For this purpose, the operational performance of the motor with dual-pole structure is first compared with the conventional single-pole motor to identify its performance limitations. Next, the structure of the dual-pole rotor is modified accordingly to address the related limitations. The proposed, modified design reduces the number of PMs in the rotor structure and offers a better steady state and transient performance. The motor is analysed using 2D finite element analysis (FEA), and results are verified by experimental tests on the motor prototype.

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“…Scholars have done lots of research on starting and operating performance, ventilation system, and thermal problems of the permanent magnet synchronous motors. The improvements of PMSM performance have been studied in [3][4][5][6][7][8][9][10][11], which illustrated the synchronous process and indicated the effective parameters to starting capability, such as inertia, load torque, supply voltage, rotor eddy current loss, and rotor bar size. In [12], a composite rotor structure is proposed to improve demagnetization capability of a high-speed PMSM, the performance is studied by using the fluid-thermal coupling method.…”

Section: Introductionmentioning

confidence: 99%

Influence of Single/Dual Ventilation Path on Fluid Field and Temperature Field of HVLSSR-PMSM with Air-Cooled Hybrid Ventilation Systems

Cao

Zhang

et al. 2018

Energies

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Due to the solid rotor structure, High-Voltage Line-Start Solid Rotor Permanent Magnet Synchronous Motor (HVLSSR-PMSM) operates with high rotor temperature rise. If the ventilation path cannot take the rotor heat away in time, the rotor will overheat or even may led to the thermal demagnetization for permanent magnet. Therefore, it is of great significance to study the thermal issues of HVLSSR-PMSM. In the paper, the fluid field and temperature field of a 315 kW, 6 kV HVLSSR-PMSM with air-cooled hybrid ventilation systems are investigated. Firstly, the electromagnetic analysis of the machine is done by using the finite-element method, the loss distributions then are obtained, which will be assigned as the heat source for thermal analysis. Then, the three-dimensional (3-D) fluid thermal coupled mathematical model for thermal analysis of HVLSSR-PMSM is established. The temperature field and the fluid flowing state of HVLSSR-PMSM with single ventilation path air-cooled system are investigated by using the established 3D fluid thermal coupled mathematical model. A dual ventilation path air-cooled system for HVLSSR-PMSM is proposed to reduce the operating temperature rise. Then, the temperature field and fluid field of HVLSSR-PMSM with dual ventilation system are analyzed by comparing with single ventilation system. Moreover, the temperature experiments are carried out on the machine with dual ventilation system to validate the accuracy of the established mathematical models. The results show that the proposed dual ventilation path air-cooled system can effectively improve the thermal distribution of HVLSSR-PMSM, whilst it can also reduce the working temperature rise of the machine.

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Starting Performance Improvement of Line-Start Permanent-Magnet Synchronous Motor Using Composite Solid Rotor

Cited by 40 publications

References 14 publications

Design and control of high‐capacity and low‐speed doubly fed start‐up permanent magnet synchronous motor

Design and control of high‐capacity and low‐speed doubly fed start‐up permanent magnet synchronous motor

Design improvement of dual‐pole LSPM synchronous motor

Influence of Single/Dual Ventilation Path on Fluid Field and Temperature Field of HVLSSR-PMSM with Air-Cooled Hybrid Ventilation Systems

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