Optimal nonlinear firing angle control of converter-fed DC drive systems

Alexandridis, Antonio T.; Iracleous, D.P.

doi:10.1049/ip-epa:19981829

Cited by 14 publications

(4 citation statements)

References 6 publications

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“…The speed control methods of a dc motor are simpler and less expensive than those of alternatingcurrent (AC) motors, and the speed control over a large range both below and above rated speed can be easily achieved [1,2]. Usually, the DC motor drive system consists of a threephase rectifier, the DC motor and the control system [2,3].…”

Section: Introductionmentioning

confidence: 99%

Modeling DC Motor Drive Systems in Power System Dynamic Studies

Li¹,

Liang²,

Xu³

2015

IEEE Trans. on Ind. Applicat.

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Direct-current (DC) motor drive systems are extensively used in paper, steel, mining, material handling and other industrial applications due to high starting torque and easy speed control over a wide range. They could account for 10% -20% load demand in some industrial facilities and thus have significant impact on the overall system dynamics. However, adequate dynamic model for this type of loads is not available for power system dynamic studies. In this paper, a comprehensive modeling method for DC motor drive systems is proposed considering two scenarios: 1) the drive will trip subjected to severe voltage sags; and 2) the drive can ride through when experiencing mild voltage sags. The DC drive trip curve and a simple procedure to determine if the drive needs to be included for dynamic studies are proposed for Scenario 1. The dynamic model for DC motor drive systems, which can be readily inserted in the simulation software, is developed and verified through case studies for Scenario 2.

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Section: Introductionmentioning

confidence: 99%

Modeling DC Motor Drive Systems in Power System Dynamic Studies

Li¹,

Liang²,

Xu³

2015

IEEE Trans. on Ind. Applicat.

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“…Applications of these techniques have been investigated to the control of induction motors [2], switched reluctance motors [3], synchronous servomotors [4], and series and shunt DC motors [5][6][7][8]. In a separately excited DC motor (SEDCM) drive, an input-output linearizing controller for speed tracking was designed only in the armature voltage control range, moreover just considering a particular fan-type load torque with no uncertainty [9].…”

Section: Introductionmentioning

confidence: 99%

Adaptive MIMO Backstepping Controller for High-Performance DC Motor Field Weakening

Liu¹,

Rashid²

2003

Electric Power Components and Systems

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A novel field-weakening technique has been investigated for separately excited DC motor systems that exhibit considerable nonlinearities. Based on proper selection of a Lyapunov function, an adaptive multi-input multi-output backstepping field-weakening control law has been derived for speed tracking. Because of the decoupling effect, this controller achieves speed tracking at any desired set point of operation. Computer tests are carried out for a specific motor to demonstrate the effectiveness of the proposed controller. It has been shown that the controller provides the globally robust speed control performance, while the motor system is operated over a wide dynamic regime of field weakening, even under the presence of uncertainties in both parameters and load torque.

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“…In the past few years, a number of signi cant results have been reported in the application of these techniques to controlling induction motors [5,6], switched reluctance motors [7], and synchronous servomotors [8]. In DC motor drives, a great deal of attention has been given to nonlinear feedback linearizing control of series and shunt DC motors [9][10][11][12]. By these techniques, speed tracking of a SEDCM is considered in the armature control range (below base speed W N ) under known nonlinear load (fan type) [13].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear MIMO Speed Sensorless Controller for DC Motor Field Weakening

Muhammad¹

2000

Electric Machines & Power Systems

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This paper addresses speed control of a separately excited DC motor (SEDCM) in nonlinear eld weakening region. Input output linearization (IOL) technique is used to deal with the motor system with considerable nonlinearity, and a nonlinear multi-input multi-output (MIMO) speed tracking controller is developed for constant power eld weakening. The eOE ects of decoupling and linearization permit the controller to be implemented and operated at any desired eldweakening point of operation. The control scheme combining this controller with nonlinear speed/load torque observer is, in particular, proposed for speed sensorless operation. Computer simulations are presented to show speed tracking performance of the proposed overall scheme.

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Optimal nonlinear firing angle control of converter-fed DC drive systems

Cited by 14 publications

References 6 publications

Modeling DC Motor Drive Systems in Power System Dynamic Studies

Modeling DC Motor Drive Systems in Power System Dynamic Studies

Adaptive MIMO Backstepping Controller for High-Performance DC Motor Field Weakening

Nonlinear MIMO Speed Sensorless Controller for DC Motor Field Weakening

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