A robust suboptimal control system design of chaotic PMSMs

Duc, Ton; Y, Nhu; Dai, Pham Duc

doi:10.1007/s00202-017-0603-6

Cited by 6 publications

(6 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5b, 7b, 9b, 11b, we show the results of estimated total disturbance (d ) and the load torque TL because in real-time experiments, there is no way to measure the total disturbance precisely. Also, as presented in (2), there are some mismatch between total disturbance and load torque, there is always some error between them.…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, comparing with induction motors, it has higher efficiency [1]. However, it has been reported [2]- [7], that the PMSMs with nonlinear multivariable structure, external disturbance, noise, and uncertainties, cannot be controlled precisely [8], [9]. Direct torque control (DTC) is one of the approaches to simplify the control system in PMSM control applications.…”

Section: Introductionmentioning

confidence: 99%

“…The adjustment of control gains is based on the gradient descent method and calculated online. Because of nonlinearities of PMSM [2], [4], the decoupling terms have been introduced to compensate them in feed-forward manner. However, this control gains tuning procedure highly depends on the knowledge of the model.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High Order Disturbance Observer Based PI-PI Control System With Tracking Anti-Windup Technique for Improvement of Transient Performance of PMSM

2021

Self Cite

View full text Add to dashboard Cite

This paper focuses on designing a disturbance observer-based control (DOBC) system for PMSM drives. The cascade structure of the discrete-time PI-PI control system with tracking anti-windup scheme based on back-calculation algorithm has been designed for both loops. In this study, the high-order disturbance observer (HODO) based control has been proposed to improve the speed tracking performance of the control system for PMSMs. Note that the disturbance in the mechanical dynamics includes not only the load torque but also the torque losses resulting from the time-varying flux, hysteresis, and friction. The HODO observer is designed to estimate this total disturbance. Moreover, the proposed disturbance observer does not require the derivatives of the disturbance to be zero, like in the traditional ones. The proposed DOBC demonstrates its ability to improve speed tracking performance regardless of a load torque variation and the high-order disturbances caused by a cogging torque and a high-frequency electromagnetic noise in the PMSM system. The proposed disturbance observer-based control system has been implemented with a Lucas-Nuelle 300 W PMSM prototyping kit. In real-time experiments, the proposed algorithm with HODO achieves fewer speed errors and faster response comparing with the PI controller without HODO or PI controller with HODO of lower orders. The synthesis of the disturbance observer with discrete-time PI controller with the effective tractive anti-windup scheme has practical significance because it is widely used in the industry. The experimental results have proved the feasibility of the proposed control scheme.INDEX TERMS Anti-windup, disturbance observer based control, high-order disturbance observer, discrete-timePI controller, PMSM, back-calculation algorithm.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High Order Disturbance Observer Based PI-PI Control System With Tracking Anti-Windup Technique for Improvement of Transient Performance of PMSM

2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…methods cannot guarantee good performance, especially with parameter uncertainties and external disturbance conditions. Although LQR control method is claimed to handle chaotic nonlinear behaviour of electric machine [8], [47], the nonlinear control methods have to be assessed thoroughly. Recently, to cope with limitations of linear control methods, researchers have proposed various advanced linear and nonlinear control techniques to improve performance, attenuate disturbance and unmodelled dynamics in the permanent magnet synchronous generator (PMSG)-based WECS.…”

Section: Introductionmentioning

confidence: 99%

“…For LQR, it requires to solve algebraic Riccati equation (ARE) to get optimal control gains at each set of weighting matrices. Among nonlinear optimal control approaches, state-dependent Riccati equation (SDRE) based control is quite popular for various nonlinear systems [41]- [47]. In an SDRE based methods, numerical approaches such as Taylor's series expansion can be used to obtain approximated solution of nonlinear optimal controller.…”

Section: Introductionmentioning

confidence: 99%

SDRE-Based Integral Sliding Mode Control for Wind Energy Conversion Systems

et al. 2020

Self Cite

View full text Add to dashboard Cite

This paper proposes a novel integral sliding mode control (ISMC) scheme based on numerically solving a state-dependent Ricatti equation (SDRE), nonlinear feedback control for wind energy conversion systems (WECSs) with permanent magnet synchronous generators (PMSGs). Unlike the conventional ISMC, the proposed control system is designed with nonlinear near optimal feedback control part to take into account nonlinearities of the WECSs. The Taylor series are used to approximate the solutions of SDRE. More specifically, the nonlinear optimal feedback control has been obtained by solving continuous algebraic Ricatti and Lyapunov equations. Sliding variables are designed such that reaching phase is eliminated and stability is guaranteed. The proposed control method equipped with high-order observer can guarantee more superior results than linear techniques such as linear quadratic regulator (LQR), conventional ISMC, and first-order sliding-mode control (SMC) method. Increasing the number of terms of the Taylor's series of the proposed control law provides better approximation, therefore the performance is improved. However, this increases the computational burden. The effectiveness of the control method is validated via simulations in MATLAB/Simulink under nominal parameters and model uncertainties. INDEX TERMS Integral sliding mode control (ISMC), state-dependent Ricatti equation (SDRE), permanent magnet synchronous generator (PMSG), wind energy conversion system (WECS), variable-speed wind turbine, generalized high-order disturbance observer (GHODO), nonlinear output feedback, continuous approximation.

show abstract

Robust Adaptive Variable Structure Tracking Control for Spacecraft Chaotic Attitude Motion

Liu

Sun

et al. 2018

IEEE Access

View full text Add to dashboard Cite

A robust suboptimal control system design of chaotic PMSMs

Cited by 6 publications

References 30 publications

High Order Disturbance Observer Based PI-PI Control System With Tracking Anti-Windup Technique for Improvement of Transient Performance of PMSM

High Order Disturbance Observer Based PI-PI Control System With Tracking Anti-Windup Technique for Improvement of Transient Performance of PMSM

SDRE-Based Integral Sliding Mode Control for Wind Energy Conversion Systems

Robust Adaptive Variable Structure Tracking Control for Spacecraft Chaotic Attitude Motion

Contact Info

Product

Resources

About