Rotor Loss Analysis of PMSM in Flywheel Energy Storage System as Uninterruptable Power Supply

Wang, Gengji; Wang, Ping

doi:10.1109/tasc.2016.2594826

Cited by 26 publications

(13 citation statements)

References 16 publications

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“…Finite Element Method is a common way to solve field distribution of PMSM. But the components of rotor loss are different in the models with different drive conditions or boundary conditions [9]. Based on this feature of FEM Models, the components of rotor loss from different harmonic sources are calculated.…”

Section: Simulation and Analysis Of Rotor Lossmentioning

confidence: 99%

Equivalent Magnetic Circuit Reluctance Optimization for Rotor Loss Reduction in Permanent Magnet Synchronous Motor for UPS-FESS

Wang

2020

IEEE Access

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Due to poor heat dissipation of rotor, especially in flywheel energy storage system (FESS) for uninterruptible power supply (UPS), there is a higher risk of irreversible demagnetization by rotor temperature rising. Irreversible demagnetization of permanent magnets by rotor loss always is a critical problem of high-speed permanent magnet synchronous machine (PMSM). The stabilization and efficiency can be increased by reduction of rotor loss. By Finite Element Method simulations with experiment date, the rotor temperature rising of the prototype PMSM mainly comes from rotor loss induced by time harmonic. The distribution and components of prototype rotor loss are given. Rotor loss is analyzed by equivalent magnetic circuit with considering time harmonic magnetomotive force in this paper. According to analysis of rotor loss, this paper presents a method to reduce rotor loss without changing stator structure and winding current. This rotor structure optimization will not affect output performance of PMSM. The method has been proved to be available by the no-load experiment finally. It can greatly reduce the rotor loss in no-load operation when PMSM is driven in high-speed operation zone. INDEX TERMS Permanent magnet synchronous machine, rotor loss, magnetic field harmonic, permanent magnet eddy current loss.

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Section: Simulation and Analysis Of Rotor Lossmentioning

confidence: 99%

Equivalent Magnetic Circuit Reluctance Optimization for Rotor Loss Reduction in Permanent Magnet Synchronous Motor for UPS-FESS

Wang

2020

IEEE Access

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“…The hardware components in the power supply section are the transformer, rectifier, filter, voltage regulator and the micro-controller. Here, the transformer is used to convert the AC power from one voltage to another voltage with low loss of power [24]. Figure 3 depicts the transformer that is used in this paper.…”

Section: Power Supply Systemmentioning

confidence: 99%

Design and implementation of smart uninterruptable power supply using battery storage and photovoltaic arrays

Narasimha

Salkuti²

2018

IJET

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The objective of this paper is to provide an uninterruptable power supply to the customers by selecting the supply from various reliable power sources such as solar photovoltaic, AC mains and battery storage systems. Initially, the load gets power supply from the reliable source (such as solar photovoltaic), if in case it is unavailable, then the proposed modules automatically switch over to the next reliable source (such as AC mains), and so on. If in case all proposed renewable energy sources (RESs) are unavailable than the proposed mod-ule automatically switch over to the local grid supply, if suppose the local grid supply is also unavailable then the proposed module au-tomatically switch over to the power storage bank. Therefore, the proposed intelligent/smart power module can improve the system per-formance and efficiency. The programming instruction of controller, the relay driver switches appropriate relay of sources to maintain uninterruptable power supply to the proposed utility of capacity 0.1kW. The proposed back-up system gets charged from the available reliable RESs with no pollution and noise, and it can also reduce the electricity bill. The proposed intelligent power module functions are displayed on LCD, it has been designed and analyzed in real time environment.

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“…Permanent magnet (PM) motor has become the most commonly used and ideal type of energy storage motor in flywheel energy storage system due to its high power density, high operating efficiency and good dynamic and static performance [4,5]. To break through the capacity limitation of a single power electronic converter, the flywheel energy storage system usually uses multiple sets of multi-phase PM motor as the main generator.…”

Section: Introductionmentioning

confidence: 99%

Predictive Power Control of Novel N*3-phase PM Energy Storage Motor for Urban Rail Transit

Zhang

Rao

et al. 2020

Energies

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High power density energy storage permanent magnet (PM) motor is an important energy storage module in flywheel energy storage system for urban rail transit. To expand the application of the PM motor in the field of urban rail transit, a predictive power control (PPC) strategy for the N*3-phase PM energy storage motor is proposed in this paper. Firstly, the output characteristics of the N*3-phase PM energy storage motor are analyzed by using the finite element method, and the mathematical model of the N*3-phase PM energy storage motor is established. Then, the topological structure and operation principle of N*3-phase PM energy storage motor system is illustrated. Furthermore, the N*3-phase PM energy storage motor system driven by six parallel voltage source inverters (VSIs) is proposed to generate the required power. Finally, a novel predictive direct power control method is developed for the N*3-phase PM energy storage motor. The feasibility and effectively of the proposed PPC method are verified by experiment and simulation. Comprehensive simulation and experimental results both show that the proposed PPC method can obtain the lower torque/stator flux ripple, smaller values of THD of stator winding currents, and zero error tracking of stator winding flux.

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Rotor Loss Analysis of PMSM in Flywheel Energy Storage System as Uninterruptable Power Supply

Cited by 26 publications

References 16 publications

Equivalent Magnetic Circuit Reluctance Optimization for Rotor Loss Reduction in Permanent Magnet Synchronous Motor for UPS-FESS

Equivalent Magnetic Circuit Reluctance Optimization for Rotor Loss Reduction in Permanent Magnet Synchronous Motor for UPS-FESS

Design and implementation of smart uninterruptable power supply using battery storage and photovoltaic arrays

Predictive Power Control of Novel N*3-phase PM Energy Storage Motor for Urban Rail Transit

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