A Novel Current Control System for PMSM Considering Effects from Inverter in Overmodulation Range

Lerdudomsak, Smith; Doki, Shinji; Okuma, Shigeru

doi:10.1109/peds.2007.4487795

Cited by 27 publications

(16 citation statements)

References 4 publications

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“…Therefore, the seriousness of the problems caused by magnetic saturation is expected to increase. Utilization of the inverter over-modulation range can improve the voltage utilization rate; as a result, the fundamental component of the terminal voltage increases, and the operation range of IPMSMs expands (4) (5) . On the other hand, utilizing the inverter over-modulation range can improve the voltage utilization rate.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, utilizing the inverter over-modulation range can improve the voltage utilization rate. The fundamental component of the terminal voltage is increased in this range; as a result, utilizing this range can expand the operation range of IPMSMs (4) (5) . In this range, the fundamental component of the terminal voltage is increased by shifting the phase voltage reference waveform to a non-sinusoidal wave represented by a square waveform.…”

Section: Introductionmentioning

confidence: 99%

“…(9), the special controller is utilized for operation in the inverter over-modulation range; however, this control system must switch between the general controller and the special controller. On the other hand, control systems that do not switch to any controllers have already been proposed (4) (5) . In Ref.…”

Section: Introductionmentioning

confidence: 99%

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Position Sensorless Control System within Over-modulation Range Based on Mathematical Model Robust against Magnetic Saturation of IPMSMs

2017

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This paper proposes a position sensorless control system for interior permanent magnet synchronous motors (IPMSMs) within the inverter over-modulation range. In general, using the position sensorless control method in the middle-and high-speed regions requires q-axis inductance, which varies significantly owing to magnetic saturation. Therefore, parameter mismatch may occur, which decreases the motor efficiency and causes control system instability. Furthermore, in the inverter over-modulation range, the performance of the auto current regulator deteriorates significantly because disturbance components, which consist of low-order harmonic current components, are fed back to the controller. As a result, the operation range is not appropriately expanded if no measurements are obtained for these components. First, the robustness against magnetic saturation is increased by constructing a position sensorless control system based on the L d model. Next, a comb-filter-based harmonic current countermeasure method is proposed. The position sensorless control system can expand the operation range in this method. Finally, the effectiveness of the proposed control system is confirmed by several experiments.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Position Sensorless Control System within Over-modulation Range Based on Mathematical Model Robust against Magnetic Saturation of IPMSMs

2017

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“…For operation at high speeds, if there is limitation of the output voltage by DC link, the operation of the PWM rectifier in the overmodulation region will become inevitable [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Current control system to PMSG in overmodulation region

Bernardes

Pinheiro

Montagner

2009

2009 Brazilian Power Electronics Conference

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This paper presents the analysis of a current control system to PMSG in overmodulation region. A detailed review of the space vector modulation in overmodulation region is initially presented. Then, an antiwindup method for current controller of PMSG is proposed. The equilibrium points of the closed loop system are calculated and an estimation of the region of operation with guaranteed stability is determined using linear matrix inequalities. Simulation results are presented and illustrate suitable closed loop performance.

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“…However, a current control system of PMSM becomes unstable easily in this overmodulation range [2]- [5]. This is a well known problem of the overmodulation range, however, the reasons of unstable problem are still not analytically investigated well.…”

Section: Introductionmentioning

confidence: 99%

Analysis for Unstable Problem of PMSM Current Control System in Overmodulation Range

Lerdudomsak

Doki

Okuma

2008

2008 IEEE Industry Applications Society Annual Meeting

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Unstable problem of PMSM current control system in the overmodulation range of an inverter is a well known problem, however, the cause and mechanism of this problem are still not investigated well. Actually, the main reasons which are large amount of harmonic components and voltage saturation of an inverter in this range are already known. However, the effects from current controller such as PI controller gain and control period are still not considered well.In this paper, we focus on the effects from current controller to this unstable problem. Moreover, we also propose the easy calculation method to predict this unstable phenomena too. Compared with the simulation results, the calculation results from our proposed method match very well.

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A Novel Current Control System for PMSM Considering Effects from Inverter in Overmodulation Range

Cited by 27 publications

References 4 publications

Position Sensorless Control System within Over-modulation Range Based on Mathematical Model Robust against Magnetic Saturation of IPMSMs

Position Sensorless Control System within Over-modulation Range Based on Mathematical Model Robust against Magnetic Saturation of IPMSMs

Current control system to PMSG in overmodulation region

Analysis for Unstable Problem of PMSM Current Control System in Overmodulation Range

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