Tracking control via adaptive backstepping approach for a three phase PWM AC-DC converter

Allag, A.; Hammoudi, Mohamed Yacine; Mimoune, S.M.; Ayad, M. Y.; Becherif, Mohamed; Miraoui, Abdellatif

doi:10.1109/isie.2007.4374626

Cited by 14 publications

(7 citation statements)

References 8 publications

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“…Presently, the PI controllers and proportional multiresonant controllers are usually applied to the inverter-based microgrid as well as droop control method. But recently, adaptive backstepping method is applied to the power electronic system [37], [38], which allows the designer to incorporate most system nonlinearities and uncertainties in the design of the controller. The modified backstepping control method has been utilized to design the controller of BTB VSC system which is applied in HVDC, wind generation system, and hybrid power system such as transmission transformer (partial) bypass.…”

Section: B Design Of Nonlinear Controller Of Spbtbmentioning

confidence: 99%

Hybrid Three-Phase/Single-Phase Microgrid Architecture With Power Management Capabilities

Sun

Zhou

Guerrero

et al. 2015

IEEE Trans. Power Electron.

142

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With the fast proliferation of single-phase distributed generation (DG) units and loads integrated into residential microgrids, independent power sharing per phase and full use of the energy generated by DGs have become crucial. To address these issues, this paper proposes a hybrid microgrid architecture and its power management strategy. In this microgrid structure, a power sharing unit (PSU), composed of three single-phase back-to-back (SPBTB) converters, is proposed to be installed at the point of common coupling (PCC). The aim of the PSU is mainly to realize the power exchange and coordinated control of load power sharing among phases, as well as to allow fully utilization of the energy generated by DGs. Meanwhile, the method combining the modified adaptive backstepping-sliding mode control approach and droop control is also proposed to design the SPBTB system controllers. With the application of the proposed PSU and its power management strategy, the loads among different phases can be properly supplied and the energy can be fully utilized as well as obtaining better load sharing. Simulation and experimental results are provided to demonstrate the validity of the proposed hybrid microgrid structure and control. I. INTRODUCTIONWith the high penetration of DGs, the concept of microgrids that can operate in either grid-connected or islanded modes is becoming more attractive [1]- [5]. A microgrid is a local controllable low-voltage distribution network consisting of a number of DGs, energy storage systems, and dispersed loads. DGs are often connected to the microgrid through power electronic interface converters, which are aimed at controlling the power injection while improving the power quality at the same time. Both the customers and power utilities can benefit from the microgrid concept, which can offer diversified energy options and high power quality and reliability [6]-[10]. Additionally, the use of low or zero emission generators in microgrids can increase the overall efficiency of energy utilization, dealing with environmental concerns, such as CO 2 emissions and reduction of dependence on conventional power generation [11], [12]. Accurate power management control among DGs is an important issue for the autonomous operation of microgrids. Typically, frequency and voltage droop control schemes are adopted to achieve power sharing among DGs without relying on communication [9], [10], [13]. Nevertheless, droop controlled microgrids are prone to have some stability and power sharing accuracy problems due to complex feeder impedances and high control gains [14]-[16]. To address these problems, stability-constrained and adaptive decentralized droop controllers have been proposed in [17]-[19]. In [20], the reactive power sharing accuracy was improved with the consideration of impedance voltage drop, the DG local load effects and the use of a virtual inductor loop. Methods based on virtual complex impedance loop and reactive power control error estimation were also proposed in [21] and [22], respectively. In or...

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Section: B Design Of Nonlinear Controller Of Spbtbmentioning

confidence: 99%

Hybrid Three-Phase/Single-Phase Microgrid Architecture With Power Management Capabilities

Sun

Zhou

Guerrero

et al. 2015

IEEE Trans. Power Electron.

142

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“…For the system represented by (19), a Luenberger nonlinear reduced-order observer is given as shown in [33],…”

Section: Load Current Estimationmentioning

confidence: 99%

“…fuzzy logic and neural networks), although VSC model is highly structured [18]. A back-stepping control was presented in [19], whereas passivity based control can be found in [20]. Also, input-output linearization based on feedback linearization has been applied [21].…”

Section: Introductionmentioning

confidence: 99%

High-performance control of a three-phase voltage-source converter including feedforward compensation of the estimated load current

León

Solsona

Busada

et al. 2009

Energy Conversion and Management

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In this paper a new control strategy for voltage-source converters (VSC) is introduced. The proposed strategy consists of a nonlinear feedback controller based on feedback linearization plus a feedforward compensation of the estimated load current. In our proposal an energy function and the direct-axis current are considered as outputs, in order to avoid the internal dynamics. In this way, a full linearization is obtained via nonlinear transformation and feedback. An estimate of the load current is feedforwarded to improve the performance of the whole system and to diminish the capacitor size. This estimation allows to obtain a more rugged and cheaper implementation. The estimate is calculated by using a nonlinear reduced-order observer. The proposal is validated through different tests. These tests include performance in presence of switching frequency, measurement filters delays, parameters uncertainties and disturbances in the input voltage.

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“…Neural/fuzzy control methods for VSCs have been analyzed in [5][6][7][8]. Back-stepping control approaches have been proposed in [9]. State estimation-based control for VSCs has been studied in [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Control of Three-Phase Voltage Source Converters with the Derivative-Free Nonlinear Kalman Filter

et al. 2016

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The paper is concerned with proving differential flatness of the three-phase voltage source converter (VSC) model and its resulting description in the Brunovsky (canonical) form. For the linearized canonical model of the converter a feedback controller is designed. At a second stage, a novel Kalman Filtering method (Derivative-free nonlinear Kalman Filtering) is introduced. The proposed Kalman Filter is redesigned as disturbance observer for estimating additive input disturbances to the VSC model. These estimated disturbance terms are finally used by a feedback controller that enables the DC output voltage track desirable setpoints. The efficiency of the proposed state estimation-based control scheme is tested through simulation experiments.

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Tracking control via adaptive backstepping approach for a three phase PWM AC-DC converter

Cited by 14 publications

References 8 publications

Hybrid Three-Phase/Single-Phase Microgrid Architecture With Power Management Capabilities

Hybrid Three-Phase/Single-Phase Microgrid Architecture With Power Management Capabilities

High-performance control of a three-phase voltage-source converter including feedforward compensation of the estimated load current

Control of Three-Phase Voltage Source Converters with the Derivative-Free Nonlinear Kalman Filter

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