Sensorless Control of Induction Motor Drives Equipped With Inverter Output Filter

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

doi:10.1109/tie.2006.878314

Cited by 56 publications

(26 citation statements)

References 14 publications

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“…5 (point B). A speed-sensorless control method [5] enhanced with a one-step-ahead current prediction in the inverter current control was used. The bandwidths of the controllers were 2π · 700 rad/s for the inverter current, 2π · 466 rad/s for the stator voltage, 2π · 233 rad/s for the stator current, and 2π · 7.5 rad/s for the rotor speed.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Only the dc-link voltage and the inverter output current were measured for control purposes. The stator voltage, the stator current, the rotor flux linkage, and the rotor speed were estimated by means of an adaptive full-order observer as described in [5]. The rotor speed was measured only for monitoring purposes.…”

Section: Resultsmentioning

confidence: 99%

“…Conventionally, the drives equipped with a sinusoidal output filter are based on constant volts-per-hertz control. However, the control performance can be improved by using sensorless vector control [5], [6]. If vector control is used, the sampling frequency should be sufficiently higher than the resonance frequency of the filter, which sets a constraint for the filter design.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cost-Effective Design of Inverter Output Filters for AC Drives

Salomaki¹,

Hinkkanen²,

Luomi³

2007

IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society

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Abstract-The paper deals with the minimization of output filter cost in inverter-fed AC drives. The LC filter design is constrained by the total harmonic distortions of the stator voltage and inverter output current, the voltage drop in the filter inductor, and the system resonance frequency. The last constraint is important from the control point of view, because the vector control requires that the sampling frequency is sufficiently higher than the resonance frequency. The design takes into account the frequency dependence of the filter resistance and inductance due to the eddy currents in the laminated ironcore inductor. The design method is further enhanced by taking into account the inverter power stage cost as a function of the switching frequency. The design minimizes the total cost of the inverter and filter, and determines the optimal switching frequency. Simulations and experiments show that the filter designed according to the proposed design procedure fulfils the design constraints, and the speed-sensorless control works well with the cost-optimized filter.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cost-Effective Design of Inverter Output Filters for AC Drives

Salomaki¹,

Hinkkanen²,

Luomi³

2007

IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society

View full text Add to dashboard Cite

show abstract

“…Deadbeat controllers [6] or a cascade control structure with classical PI controllers [11] can be applied to shape a sinusoidal output voltage waveform of the inverter. The mathematical model of an inverter with an output LC filter is non-linear and non-stationary [12].…”

Section: Introductionmentioning

confidence: 99%

A state-space approach for control of NPC type 3-level sine wave inverter used in FOC PMSM drive

Tarczewski¹,

Grzesiak²,

Wawrzak³

et al. 2014

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. This paper presents the design and analysis process of state feedback controllers for NPC type 3-level sine wave inverter. In order to achieve good dynamic features in a state feedback control an internal model of reference input and a feedforward path are introduced. During synthesis process of the state feedback controllers maximum permissible dynamics of voltage control in the linear range of modulation is taken into account. It is shown that initially gains of the controller and feedforward path are non-stationary and depend on the angular velocity. Stationary approximation of a non-stationary state feedback controller is presented in details. Proposed state feedback control structures for continuous voltage shaping NPC type 3-level voltage source inverter are examined in FOC PMSM drive. The novelty of the presented controller lays in a stationary approximated state feedback control structure designed in terms of maximum permissible dynamics of a voltage control system. Simulation and experimental results (at the level of 3 kW) of the designed control algorithms are included.

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“…The maximum torque and speed are constrained by both the inverter current limit and the stator current limit in addition to the maximum voltage of the inverter. A field-weakening algorithm for induction motor drives equipped with an inverter output filter has been presented in [7], but the influence of the filter on the high-speed performance of PMSM drives has not yet been investigated.…”

Section: Introductionmentioning

confidence: 99%

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

Salomaki¹,

Hinkkanen²,

Luomi³

2008

IEEE Trans. on Ind. Applicat.

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Abstract-The paper deals with the maximum torque and speed of permanent magnet synchronous motor (PMSM) drives when the inverter output voltage is filtered by an LC filter with a cut-off frequency well below the switching frequency. According to steady-state analysis, the filter affects the performance of the motor drive especially at high speeds. The stator current is not equal to the inverter current, and due to the inverter current and inverter voltage limits, the torque-maximizing stator current locus differs from that of a drive without the filter. A field-weakening method is proposed for PMSM drives with an inverter output filter. The method is implemented and tested in a 2.2-kW PMSM drive. The experimental results agree well with the analysis, and validate the high-speed performance of the proposed field-weakening method.Index Terms-Permanent magnet synchronous motor (PMSM) drives, inverter output filter, field-weakening control, vector control.

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Sensorless Control of Induction Motor Drives Equipped With Inverter Output Filter

Cited by 56 publications

References 14 publications

Cost-Effective Design of Inverter Output Filters for AC Drives

Cost-Effective Design of Inverter Output Filters for AC Drives

A state-space approach for control of NPC type 3-level sine wave inverter used in FOC PMSM drive

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

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