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CES Transactions on Electrical Machines and Systems
Scopus
ISSN 2096-3564 · China Electrotechnical Society · 425 artikel di indeks
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Artikel Jurnal
A Novel Segment-switching Strategy with the Current Transient Overshoot Suppression for Segmented Long-Stator Linear Motor
The segmented power supply scheme for long-stator linear motor facilitates reducing power capacity and achieving a high power factor. However, the segment-switching process leads to overcurrent under high-speed conditions. This paper proposes a novel segment-switching strategy based on the…
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Artikel Jurnal
Permeance-Harmonic-Oriented Design and Optimization of a Field-Modulated PM Hub Motor for High Torque Density
This paper investigates an aggregated design and optimization method for permanent magnet hub (PMH) motors, guided by permeance harmonics, to meet low-speed, high-torque requirements. The key lies in establishing the correlation between stator and rotor permeance harmonics and torque. Firstly…
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Artikel Jurnal
Power Factor Analysis of Flux Modulated Dual-PM Excited Machines based on PM and Armature Flux Linkages
Flux modulated dual-permanent magnet (PM) excited machine (FMDPMM) has become a promising candidate for direct-drive applications, featuring high torque density and efficiency. However, it usually suffers from a low power factor (PF) due to the imbalanced PM and armature flux linkages, which are…
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Artikel Jurnal
Novel Asymmetric IPM Rotor Design Using Cascaded Multiphysics Topology Optimization
Sustainable motor design is crucial for improving energy efficiency and reducing material consumption. This paper introduces a novel asymmetric interior permanent magnet (IPM) rotor design using topology optimization (TO). The study employs a two-stage TO approach to design IPM rotor. In the first…
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Artikel Jurnal
Effect of Winding Phase-Shifting on Low-Space-Harmonic Design in Six-Phase Permanent-Magnet Synchronous Machine
Fractional-slot concentrated windings (FSCWs) are widely utilized in six-phase fault-tolerant permanent-magnet synchronous machines (PMSMs). However, FSCWs cause abundant space harmonics of stator magnetomotive force (MMF) and increase the losses of the machine. In this article, in order to…
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Artikel Jurnal
Quantitative Analysis of Structure-related Spatial Harmonics on Torque Generation in Hybrid Excited Asymmetric Stator Pole Double Salient Machine for Integrated Machine Drive Applications
With the rapid development of integrated machine drives (IMDs), hybrid excited asymmetric stator pole double salient machines (HEASPDSMs) have gained widespread attention owing to their flexible flux regulation ability, excellent heat dissipation capacity, and robust structure. As a type of flux…
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Artikel Jurnal
Dynamic Mechanism and Active Suppression of Rotor Beat Frequency Vibration in a Magnetic Levitation Induction Machine
This study focuses on the phenomenon of rotor beat frequency vibration (BFV) in a 2-pole magnetic levitation induction machine (MLIM), systematically investigating its dynamic mechanisms and subsequently applying an established method for its suppression. First, the BFV synthesis process is…
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Artikel Jurnal
Overview of Coordinated Control Strategies of Wind Farm Integrated MMC-HVDC
With the development of onshore power grid projects in desert, Gobi and desertified regions as well as offshore wind power projects, electric energy requires long-distance transmission due to insufficient local consumption. Modular multilevel converter based high-voltage direct current (MMC-HVDC)…
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Artikel Jurnal
A Sensorless I-F Start-up Strategy for Flying Start of Ultra-High-Speed Permanent Magnet Motors based on Short-Circuit Transient Differentiation
Conventional current-to-frequency (I-F) start-up strategies apply only to zero-speed conditions. When a nonzero initial speed (referred to as a flying start) exists, loss of synchronism is likely to occur because the virtual synchronous reference frame fails to align with the rotor flux linkage…
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Artikel Jurnal
LPF-Free Harmonic Current Control in Multi-Synchronous Reference Frames for Dual Three-Phase PMSMs
Harmonic current regulation in multi-phase motor drives remains challenging under dynamic operating conditions due to non-sinusoidal back electromotive force (EMF) and inverter nonlinearities, which introduce dominant low-order harmonics. Multi-synchronous reference frame (MSRF) based methods are…
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Artikel Jurnal
Study on Electrical Machine Phase Current Reconstruction Based on a DC-Bus Current Sensor
In the field of high-performance motor control, accurate sampling of motor currents is essential for precise control and stability. To achieve reliable measurement of a motor's three-phase currents, it is typically necessary to install at least two high-precision current sensors. However, using…
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Artikel Jurnal
Multiparameter Estimation of PMSM Combining Mechanical and Electrical Models with Nonlinear Saturated Inductance and Voltage Fitting
In this paper, a precise and computationally efficient method for estimating multiparameter of permanent magnet synchronous motors (PMSMs) is proposed. This method can realize decoupling estimation with a small amount of data at a single speed, and considers the inductance correlation to improve…
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Artikel Jurnal
Enhanced Repetitive Control with Phase Compensation Based ADRC for Harmonic Suppression in Magnetically Suspended Rotor Under Strong Gyroscopic Effects
Magnetically suspended rotor (MSR) systems have gained widespread industrial adoption owing to their frictionless operation and exceptional reliability. However, harmonic current generated by unbalanced mass and sensor runout threatens the system stability. Repetitive control (RC) effectively…
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Artikel Jurnal
Fault-Tolerant Control and Fault Diagnosis of Symmetrical Six-Phase Permanent Magnet Synchronous Motor Drives without Controller Reconfiguration
Owing to the multi-degree-of-freedom characteristics and inherent fault-tolerant capacity, six-phase motors have been widely adopted in high-power applications, such as electric vehicle propulsion and aerospace systems. This paper presents the fault-tolerant control strategy of symmetrical…
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Artikel Jurnal
Asymmetric Voltage Vector-Based Initial Rotor Position Detection in Four-Switch Inverter Fed BLDC Motors
In position-sensorless brushless direct current (DC) motors (BLDCMs) fed by a four-switch three-phase (FSTP) inverter, only two phases are fully controlled, while the remaining phase is tied to the midpoint of the split DC-link capacitors. The voltage pulses required by inductance-based initial…
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Artikel Jurnal
A Step-Up 25-Level Inverter Topology for Photovoltaic Systems
Integration of renewable energy sources into power systems requires efficient multilevel inverters, capable of producing high-quality output voltage with low total harmonic distortion (THD). Conventional multilevel inverters often suffer from high component count, high switching stress, low voltage…
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Artikel Jurnal
Self-Air-Cooling Design and Optimization for an Outer-Rotor PMSG in External Still Air
For hybrid-electric unmanned aerial vehicles (UAVs), the stable power supply from the onboard permanent magnet synchronous generator (PMSG) is critical. Overheating in the confined compartment can directly lead to power interruption and system failure. Therefore, proactively improving the thermal…
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Artikel Jurnal
Research on Power Factor Improvement of a PM Vernier In-Wheel Motor with Collaborative Design of PM and Armature Flux Linkage
This paper proposes a collaborative design method for enhancing the power factor and torque of electric motors. First, the intrinsic relationship between flux linkage analysis of the permanent magnet (PM) and armature field and the power factor is explored. Then, the connection between flux linkage…
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Artikel Jurnal
A Review of Optimization Methods for Pole-Shoe Structures in Large-Scale Salient Pole Synchronous Motors
Optimizing the rotor pole-shoe structure of large salient pole synchronous motors is critical for improving their performance and efficiency, allowing for enhanced responsiveness to grid demands and adjustments in operating conditions. This paper provides a comprehensive review of various pole-shoe…
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Artikel Jurnal
Comparison of Electrically Excited Synchronous Machines Using Copper and Aluminum Windings in Stator and Rotor
In this paper, electrically excited synchronous machines (EESMs) using copper (Cu) and aluminum (AI) windings are compared for the feasibility of replacing Cu windings with Al windings in electric vehicle (EV) applications since Al windings have lower mass density and cost per weight, but higher…