Influence of Inverter Output Filter on Maximum Torque and Speed of PMSM Drives

Salomaki, J.; Hinkkanen, Marko; Luomi, J.

doi:10.1109/tia.2007.912765

Cited by 19 publications

(4 citation statements)

References 18 publications

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“…In general, current/voltage sensors and inverters are typically integrated inside commercial closed-form drives. Additional inverter hardware modification is necessary if external sensors are selected for an FOC drive with an LC filter [17,18]. In contrast, sensorless observer-based estimation is preferred because only the inverter inside the current sensors is used for filter state estimation.…”

Section: Introductionmentioning

confidence: 99%

Sensorless LC Filter Implementation for Permanent Magnet Machine Drive Using Observer-Based Voltage and Current Estimation

Liang

Lin

Chen

et al. 2021

Sensors

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For pulse width modulation (PWM) inverter drives, an LC filter can cascade to a permanent magnet (PM) machine at inverter output to reduce PWM-reflected current harmonics. Because the LC filter causes resonance, the filter output current and voltage are required for the sensorless field-oriented control (FOC) drive. However, existing sensors and inverters are typically integrated inside commercial closed-form drives; it is not possible for these drives to obtain additional filter output signals. To resolve this integration issue, this paper proposes a sensorless LC filter state estimation using only the drive inside current sensors. The design principle of the LC filter is first introduced to remove PWM current harmonics. A dual-observer is then proposed to estimate the filter output current and voltage for the sensorless FOC drive. Compared to conventional model-based estimation, the proposed dual-observer demonstrates robust estimation performance under parameter error. The capacitor parameter error shows a negligible influence on the proposed observer estimation. The filter inductance error only affects the capacitor current estimation at high speed. The performance of the sensorless FOC drive using the proposed dual-observer is comparable to the same drive using external sensors for filter voltage and current measurement. All experiments are verified by a PM machine with only 130 μH phase inductance.

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Section: Introductionmentioning

confidence: 99%

Sensorless LC Filter Implementation for Permanent Magnet Machine Drive Using Observer-Based Voltage and Current Estimation

Liang

Lin

Chen

et al. 2021

Sensors

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“…A robust strategy for regulating the grid current entering a distribution network from a three-phase inverter system connected via an LCL filter was proposed in Twining and Holmes (2003). Szczupak and Pacas (2006), Salomaki et al (2006Salomaki et al ( , 2007, Pozo-Palma and Pacas (2014) and Salomaki and Luomi (2015) all proposed an LC filter that connects between the inverter and the motor. Also, they designed a full-order observer to estimate some parameters.…”

Section: Introductionmentioning

confidence: 99%

Filter design at the output of the inverter in PMSM drives

Zhang

Liu

Mei

et al. 2017

COMPEL

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Purpose This paper aims to describe a simple low-pass filter to suppress torque pulsation and current harmonics in permanent magnet synchronous motor (PMSM) drives. Design/methodology/approach For the control of the PMSM, a field-oriented control algorithm is always used. The proposed filter is actually a resistance, inductance, capacitance (RLC) filter. At the output of the inverter and the input of PMSM, an RLC filter is connected. This filter suppresses current harmonics through filtering phase voltage harmonics. Analysis of the filter is achieved through frequency characteristics analysis. Findings This filter can effectively filter out the harmonic of phase voltage. Both the simulation and experiment results show that the proposed filter can effectively suppress torque pulsation and current harmonics in PMSM drives. Also, the method of selecting filter parameters and the whole control system are very simple. Research limitations implications The filter increases the design cost of the system. Practical implications The harmonics and torque ripple of phase current are greatly suppressed. Also, the loss of the PMSM reduced. Originality/value The method of selecting filter parameters and the analysis of the proposed filter are proposed for the first time.

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“…The HLCF effectively reduces dv/dt and helps attenuate the common-mode noise. Information on the influence of the inverter output filters according to the PWM technique or at maximum torque and speed can be found in [10]. The interaction between the filter and switches is discussed in [11].…”

Section: Introductionmentioning

confidence: 99%

On influence of deterministic and non-deterministic modulation schemes in two-level filter-less inverter performance driving a permanent magnet synchronous motor

Dost

Agelidis

2013

IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society

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A drive train system (DTS) powered by a battery and driving a permanent magnet synchronous motor (PMSM) is discussed in this paper. A two-level, three-phase conventional inverter with no harmonic filters on both AC and DC sides is used as means of power conditioning. This DTS is modeled as a double oscillator according to the mechanical part in an electric vehicle. Two inverter modulation schemes are applied, namely, a hysteresis scheme (non-deterministic) and one based on sinusoidal-triangular waveforms (deterministic). The influence of these modulation schemes on the performance of the DTS is determined by assessing the level of inverter generated harmonics flowing from/to the battery (electrical part) and the motor (mechanical part). The simulated results presented in the paper indicate that the absence of filters can be partly retained by a dispersion of the harmonic energy of the inverter generated spectral due to high frequency switching. This can be achieved by using a hysteresis control scheme and the impact of the filter-less inverter on the DTS performance is limited only by process specifications.

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Influence of Inverter Output Filter on Maximum Torque and Speed of PMSM Drives

Cited by 19 publications

References 18 publications

Sensorless LC Filter Implementation for Permanent Magnet Machine Drive Using Observer-Based Voltage and Current Estimation

Sensorless LC Filter Implementation for Permanent Magnet Machine Drive Using Observer-Based Voltage and Current Estimation

Filter design at the output of the inverter in PMSM drives

On influence of deterministic and non-deterministic modulation schemes in two-level filter-less inverter performance driving a permanent magnet synchronous motor

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