Sensorless Vector Control of PMSM Drives Equipped With Inverter Output Filter

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

doi:10.1109/iecon.2006.348050

Cited by 22 publications

(13 citation statements)

References 17 publications

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“…adding any extra measurements to the AC drive [6]- [8]. The control performance is close to that of a drive without the filter.…”

Section: Introductionmentioning

confidence: 62%

“…The control of the PMSM drive equipped with an inverter output filter is based on cascaded controllers and a speed-adaptive full-order observer as presented in [8]. Fig.…”

Section: Speed-sensorless Vector Controlmentioning

confidence: 99%

“…The inverter current is the feedback signal for the observer. The observer gain is chosen as in [8] resulting in a locally stable observer in a wide speed range. In practice, however, the inverter non-idealities and the inaccuracies of the system parameters cause stability problems in sustained operation at low speeds under load.…”

Section: Speed-sensorless Vector Controlmentioning

confidence: 99%

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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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“…adding any extra measurements to the AC drive [6]- [8]. The control performance is close to that of a drive without the filter.…”

Section: Introductionmentioning

confidence: 62%

“…The control of the PMSM drive equipped with an inverter output filter is based on cascaded controllers and a speed-adaptive full-order observer as presented in [8]. Fig.…”

Section: Speed-sensorless Vector Controlmentioning

confidence: 99%

Section: Speed-sensorless Vector Controlmentioning

confidence: 99%

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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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“…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%

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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“…Reliable operation without sensor is still a subject of investigations. The actual investigations are mainly focused on: zero speed range [1][2][3][4], high dynamic performance [5,6], motor supplied through choke or LC filter [7][8][9] and sup- …”

mentioning

confidence: 99%

Improved Method for Position Estimation Using a Two-Dimensional Scheduling Array

Urbański

Zawirski

2015

Automatika

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Original scientific paperThe paper presents results of studies on the position estimation for the permanent magnet synchronous motor (PMSM) drive using gain scheduling technique for tuning the observer's parameters. It allows a good estimation accuracy in wide range of working point change. Such observer with multi integral correction function improves the performance, but need to modify its parameters according to its speed and load.Novelty is the use of a two-dimensional gain scheduling technique and the use in the sensorless drive, where traditional solution is simple one-input scheduling variable -mainly on drives with position sensors. The look-up table output is processed using bilinear interpolation. Position observer is based on back EMF estimation. It uses predefined reference matrices of parameters, which are interpolated and depend on drive's operating point.Key words: Observers, PMSM, Scheduling, Sensorless control, Variable speed drives Unaprijeđena metoda estimacije položaja zasnovana na upotrebi dvodimenzionalnog polja za ažuriranje parametara. U radu su predstavljeni rezultati studija vezanih za estimaciju položaja sinkronog motora s permanentnim magnetima (PMSM) uz korištenje regulatora s podesivim pojačanjem za adaptaciju parametara estimatora. Metoda pokazuje dobru točnost estimacije u širokom rasponu radnog područja. Ovakav estimator s više integracijskih korekcijskih funkcija poboljšava performanse, ali i zahtijeva adaptaciju parametara ovisno o brzini i teretu.Novost predstavlja korištenje dvodimenzionalnog podešavanja pojačanja regulatora te primjena u bezsenzorskom upravljanju elektromotornim pogonom, gdje se tradicionalno koristi jednostavno ažuriranje jedne varijable -prije svega kod elektromotornih pogona sa senzorom za poziciju. Pregledna tablica izlaza koristi se uz bilinearnu interpolaciju. Estimator položaja zasnovan je na estimaciji protuelektromotorne sile. Estimator koristi unaprijed određene referentne matrice parametara koje se interpoliraju te ovise o radnoj točki.Ključne riječi: Estimatori, PMSM, ažuriranje parametara, bezsenzorsko upravljanje, elektromotorni pogon promjenjive brzine INTRODUCTIONThe Permanent Magnet Synchronous Motor (PMSM) is very often used type of motor in industrial applications. Its the most significant advantages are high power density, high torque-to-inertia ratio and small torque ripples. Such drive gives possibility to precise speed and position control at low speed range, a torque control at zero speed and has compact size. A typical control structure of PMSM drive bases on vector control method. It allows to get a good dynamics, effective performance especially during transient processes and prevents overload of the motor by controlling the torque. However, a motor shaft position sensor is required to enable the effective control of the drive. Reliable operation without sensor is still a subject of investigations. The actual investigations are mainly focused on: zero speed range [1][2][3][4], high dynamic performance [5,6], motor supplied through ...

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Sensorless Vector Control of PMSM Drives Equipped With Inverter Output Filter

Cited by 22 publications

References 17 publications

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

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

Cost-Effective Design of Inverter Output Filters for AC Drives

Improved Method for Position Estimation Using a Two-Dimensional Scheduling Array

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