Design of power system stabilizer using power rate reaching law based sliding mode control technique

Bandal, Vitthal; Bandyopadhyay, B.; Kulkarni, A. M.

doi:10.1109/ipec.2005.207040

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…Moreover, the designed controller can be easily extended for all symmetrical and asymmetrical multiphase machines used in several applications. The choice of designing the controller in discrete-time belongs to the fact that the real-time implementation is most of the time executed through discrete systems [38] and to maintain the inherent features of sliding mode that can be lost after discretisation. In addition, the proposed controller is based on a reaching law in terms of exponential term functions of the switching surface called ERL [39,40].…”

Section: Introductionmentioning

confidence: 99%

Discrete sliding mode control based on exponential reaching law and time delay estimation for an asymmetrical six‐phase induction machine drive

Kali

Saad

Doval-Gandoy

et al. 2019

IET Electric Power Applications

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This study deals with the problem of controlling rotor speed and stator currents of an asymmetrical six-phase induction machine with uncertain dynamics, disturbances, and unmeasurable rotor currents and proposes a robust non-linear variable structure controller. First of all, an outer control loop based on a proportional-integral regulator is performed to control the rotor speed and to construct the desired stator current references. Then, the inner loop is performed based on the proposed method that combines the time delay estimation method and discrete sliding mode control based on exponential reaching law. This structure allows an accurate and simple estimation of uncertainties and rotor currents, a high-tracking precision, a convergence of the stator currents to their known desired references in finite-time and chattering reduction. The design procedure is detailed step by step and the stability analysis and the convergence time are established for the current closedloop system. Experimental work was carried out on an asymmetrical six-phase induction motor drive to show the effectiveness and performance of the proposed robust non-linear discrete method. The results obtained highlighted the good tracking performance of the stator currents.

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Section: Introductionmentioning

confidence: 99%

Discrete sliding mode control based on exponential reaching law and time delay estimation for an asymmetrical six‐phase induction machine drive

Kali

Saad

Doval-Gandoy

et al. 2019

IET Electric Power Applications

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show abstract

“…Nevertheless, real-time implementation is generally performed through discrete systems [35]. For this reason, the development of the controller should be done in discrete-time.…”

mentioning

confidence: 99%

Current Control of a Six-Phase Induction Machine Drive Based on Discrete-Time Sliding Mode with Time Delay Estimation

et al. 2019

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This paper proposes a robust nonlinear current controller that deals with the problem of the stator current control of a six-phase induction motor drive. The current control is performed by using a state-space representation of the system, explicitly considering the unmeasurable states, uncertainties and external disturbances. To estimate these latter effectively, a time delay estimation technique is used. The proposed control architecture consists of inner and outer loops. The inner current control loop is based on a robust discrete-time sliding mode controller combined with a time delay estimation method. As said before, the objective of the time delay estimation is to reconstruct the unmeasurable states and uncertainties, while the sliding mode aims is to suppress the estimation error, to ensure robustness and finite-time convergence of the stator currents to their desired references. The outer loop is based on a proportional-integral controller to control the speed. The stability of the current closed-loop system is proven by establishing sufficient conditions on the switching gains. Experimental work has been conducted to verify the performance and the effectiveness of the proposed robust control scheme for a six-phase induction motor drive. The results obtained have shown that the proposed method allows good performances in terms of current tracking, in their corresponding planes.

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Discrete-Time Sliding Mode with Time Delay Estimation of a Six-Phase Induction Motor Drive

Kali

Rodas

Ayala

et al. 2018

IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society

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Design of power system stabilizer using power rate reaching law based sliding mode control technique

Cited by 4 publications

References 18 publications

Discrete sliding mode control based on exponential reaching law and time delay estimation for an asymmetrical six‐phase induction machine drive

Discrete sliding mode control based on exponential reaching law and time delay estimation for an asymmetrical six‐phase induction machine drive

Current Control of a Six-Phase Induction Machine Drive Based on Discrete-Time Sliding Mode with Time Delay Estimation

Discrete-Time Sliding Mode with Time Delay Estimation of a Six-Phase Induction Motor Drive

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