Lyapunov Based Fast Terminal Sliding Mode Q-V Control of Grid Connected Hybrid Solar PV and Wind System

Santra, Subhendu Bikash; Kumar, Kundan; Biswal, Pravat; Panigrahi, Chinmoy Kumar

doi:10.1109/access.2018.2850453

Cited by 27 publications

(17 citation statements)

References 30 publications

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“…Similarly, the power loss while the switch is turning off can be determined using (17) The total loss per switching state will be the sum of (16) and (17). Here f s is the switching frequency of the switch, V swb is the blocking voltage across the switch, I swc is the conduction current through the switch, t on and t off are the time required for the switch to turn ON and turn off respectively.…”

Section: ) Switching Lossmentioning

confidence: 99%

“…The dynamic performance of MLI with a control loop has been investigated by different authors. A Lyapunov based fast terminal sliding mode Q-V control for grid coupled hybrid solar PV and wind system is presented in [17], and this nonlinear control algorithm provides faster error tracking capability and robustness, but it lacks anti-inference ability. In [18], a fast and fixed switching frequency finite control setmodel predictive control algorithm with delay compensation is employed in a two-level voltage source inverter-based distributed generation system, but the multiple switching frequencies result in a sluggish response.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A New Multilevel Inverter Topology With Reduced Power Components for Domestic Solar PV Applications

Prem¹,

Sivaraman²,

Almakhles

et al. 2020

IEEE Access

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Power electronic converters are used to nullify the input fluctuations from a solar photovoltaic unit due to intermittent solar irradiance and to make the terminal voltage grid compatible with desired frequency. The conventional two-level converters suffer from low power quality and high voltage stress. In this paper, a new multilevel inverter topology called Dual Source Multilevel Inverter (DS-MLI) with fewer power switches is proposed for solar PV power conversion systems. It is capable of operating in symmetric and asymmetric operating modes without the need for cascading. This reduces the switching components required to produce a given number of levels in the staircase voltage waveform. A closed-loop control algorithm is designed using the state-space averaging technique, and the dynamic behavior of the system under step change is assessed. The simulation is carried out in MATLAB environment. The experimental prototype of DS-MLI rated 1 kW is fabricated using FGA25N120-ANTD IGBTs, and an eco-sense made solar PV emulator is used for analyzing the performance of DS-MLI while interfacing with solar PV unit. The suggested scheme is compared with its conventional counterpart in the aspects of components required, cost and efficiency and the results are presented INDEX TERMS DS-MLI, Multilevel inverter, Solar PV, Power Conversion, Fundamental frequency switching.

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Section: ) Switching Lossmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Multilevel Inverter Topology With Reduced Power Components for Domestic Solar PV Applications

Prem¹,

Sivaraman²,

Almakhles

et al. 2020

IEEE Access

View full text Add to dashboard Cite

show abstract

“…Theorem 1. Considering the uncertain non-linear system (14), by applying fast disturbance observer (18)- (20), the disturbance approximation error (22) converges to zero in the finite time.…”

Section: = − (18)mentioning

confidence: 99%

“…The third model for SR introduced in the synchronous rotational reference frame (dq), to avoid using PR controller. Because of working with DC values, this is a popular controller for SR [7][8][9][10][11][12][13][14][15][16][17], modeling and control of power converters in microgrids have been investigated in [7], and a droop control technique is proposed for active power flow control of converters based on multiple PI controller loops in dq frame. A combination of fuzzy-model-based control and adaptive sliding mode technique has been proposed for the uncertain estimation of a three-phase AC/DC converter in [8].…”

Section: Introductionmentioning

confidence: 99%

“…For tracking the fast dynamics in the grid-connected converter, utilizing a sliding mode controller is proposed in [12], whereas a parallel integrator is required to eliminate the steady-state error. A current-controlled voltage-mode scheme for distributed energy resource units based on sliding-mode control (SMC) for outer loop and an adaptive terminal sliding mode control in hybrid grid-connected converters involve solar PV and wind systems strategy are proposed in [13] and [14] respectively, with no attention to the stability in the finite time and the presence of saturation. A new approach for control of three-phase SR is proposed in [15,16], which relies on an extended state observer (ESO)based second-order sliding mode (SOSM).…”

Section: Introductionmentioning

confidence: 99%

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Finite-Time Disturbance-Observer-Based Integral Terminal Sliding Mode Controller for Three-Phase Synchronous Rectifier

Eskandari¹,

Yousefpour

Ayati

et al. 2020

IEEE Access

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This article is concerned with the design of a finite-time disturbance-observer-based integral terminal sliding mode controller for the effective performance of three-phase synchronous rectifiers. The proposed control technique is developed based on the conventional synchronous reference frame model of the three-phase grid-connected converter, and the system dynamics is described in terms of a time-varying non-linear state equation. The variation of DC-load is considered as a disturbance. Therefore, a combination of a fast disturbance observer and an integral terminal sliding mode controller is utilized to produce the reference value of the direct axis for the current control loop. In this research, by employing Lyapunov stability theorem in the theoretical analysis and by numerical simulations, it is confirmed that the proposed closed-loop system is stable and the states converge to desired values in finite time even in the presence of load disturbance and control input saturation. The integral terminal sliding mode controller is utilized to maintain a robust performance along with a faster response of the converter. In order to demonstrate the performance ability of the proposed control scheme under real condition, an AC power source, impregnated with low order harmonics, is assumed. A real-time laboratory setup of the synchronous rectifier has been developed successfully, and the effective performance of the proposed control technique is fully proven.

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A Review on Advanced Control Techniques for Multi‐Input Power Converters for Various Applications

Priyanka

Duraisamy

2023

Smart Grids for Smart Cities Volume 1

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Lyapunov Based Fast Terminal Sliding Mode Q-V Control of Grid Connected Hybrid Solar PV and Wind System

Cited by 27 publications

References 30 publications

A New Multilevel Inverter Topology With Reduced Power Components for Domestic Solar PV Applications

A New Multilevel Inverter Topology With Reduced Power Components for Domestic Solar PV Applications

Finite-Time Disturbance-Observer-Based Integral Terminal Sliding Mode Controller for Three-Phase Synchronous Rectifier

A Review on Advanced Control Techniques for Multi‐Input Power Converters for Various Applications

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