Vector Control of Permanent Magnet Synchronous Machine

Petri, Ana-Maria; Petreuş, Dorin

doi:10.1109/siitme50350.2020.9292170

Cited by 2 publications

(1 citation statement)

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“…The d-axis current component is aligned with the rotor excitation in synchronous machines and controls the excitation flux, while the d-axis component is aligned along a vertical axis to the excitation and controls the electromagnetic torque of the motor, as shown in Figure 2b [14]. The main advantages of the vector control techniques over the scalar (usually designated as v/f) control techniques concern the transient operation and involve both motor efficiency and improved torque response as well as better torque control and speed adjustment at low speeds [15]. These advantages are of great importance in elevator applications and justify the required complexity of vector control.…”

Section: Vector Control Of Pmsmmentioning

confidence: 99%

Energy Savings in Elevators by Using a Particular Permanent-Magnet Motor Drive

Vlachou,

Karakatsanis,

Kladas

2023

Energies

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This paper presents the energy savings achieved by using a particular three-phase permanent-magnet motor drive control strategy in an elevator application. The proposed control methodology, based on a particular variable-amplitude variable-frequency voltage control pattern technique implemented in a permanent-magnet motor, is compared to a standard induction motor elevator case. By adopting appropriate simultaneous changes in the amplitude and frequency of the motor voltage, high speeds can be attained in conjunction with smooth starting and stopping actions involving a reduced supply current during the respective movement of the elevator. In addition, this method exhibits a high power factor with a good driving quality. The control technique introduced achieves the levelling-off of the floor and the group movement of the system using in the programmable memory a speed pattern that is generated targeting proportionality to the position of the lift. In that respect, significant energy savings can be obtained, which, depending on the type of motor implemented, can be up to 30% compared to the conventional techniques. These improvements can be attained with the appropriate handling of the applied pulse width modulation techniques. Various simulated and experimental results are given, illustrating the respective energy savings achieved with the proposed methodology.

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Section: Vector Control Of Pmsmmentioning

confidence: 99%