Fractional-order Feedback Linearization Sliding-mode Control Design for Grid-connected PV Inverters

Zeng, Fang; Shu, Hong Chun; Zhu, Ting; Swe, Thidar; Yang, Bo

doi:10.1109/cieec47146.2019.cieec-2019334

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…The reference capacitor voltage and reference capacitor current values are obtained as Eqs. (14,15). S tends to zero and derivative of S being zero are the two conditions to be satisfied for the existence of FOSMC [1].…”

Section: Fosmc Implementationmentioning

confidence: 99%

“…1 shows the generalized block diagram for FOSMC. Sliding surface S is obtained when actual variable X act is compared with the desired variable X ref [15]. This sliding surface is processed through the FOSMC block to produce the gating pulses to the VSI circuit.…”

Section: Introductionmentioning

confidence: 99%

“…The PV system comprises of an array of solar panels known as a PV array, a DC-DC boost converter and a VSI for standalone and grid interface applications [15]. A boost converter converts the low voltage obtained from a PV array using MPPT algorithm with suitable controller to a required high voltage and then fed to a VSI to generate a desired output AC voltage waveform.…”

Section: Introductionmentioning

confidence: 99%

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Robust fractional order sliding mode control for solar based DC-AC inverter

Saheb¹,

Gudey²

2020

Journal of Energy Systems

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Fractional order sliding mode control (FOSMC) strategy for a solar based DC-AC inverter is presented in this work. First FOSMC is implemented to voltage source inverter with a fixed DC input voltage of 400V to drive a load of 2.3 kW at a power factor of 0.8 lag. Here load voltage and current through capacitor as state variables and a linear sliding surface is considered. FOSMC using Gao’s reaching law is derived for inverter circuit. FOSMC is implemented at load bus to control output voltage of inverter with linear and nonlinear loads to desired values. FOSMC controls the output voltage with good voltage regulation, less steady state error of 1.32 %, settling time of 0.15 ms, good dynamic response, and convergence to origin with less chattering compared to classical SMC. FOSMC based solar based VSI is presented. The maximum power from PV array is extracted using P&O MPPT algorithm. A boost converter is used to step up input voltage of 200 V to 400 V. P-V and I-V characteristics are obtained for a typical solar cell of 2.5 kW FOSMC requires less control efforts to obtain a pure sinusoidal output voltage waveform of 230 V (rms) with output voltage THD of 0.135% well within IEEE standards. PSCAD/EMTDC v4.6 is used for simulation work.

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Section: Fosmc Implementationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Robust fractional order sliding mode control for solar based DC-AC inverter

Saheb¹,

Gudey²

2020

Journal of Energy Systems

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Control synthesis by full state vector in systems with fractional-order derivatives using Caputo-Fabrizio operator

Lozynskyy¹,

Lozynskyy²,

Kasha³

2020

Math. Model. Comput.

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In the paper, the control system synthesis by means of the full state vector is considered when using fractional derivatives in the description of this system. To conduct research in the synthesized system with fractional derivatives in the Caputo--Fabrizio representation, a fundamental matrix of the system is formed, which also allows us to analyze the influence of initial conditions on the processes within the system. In particular, the finding of the fundamental matrix of the system in the case of multiple roots of a characteristic polynomial, which are obtained by transforming the synthesized system to the binomial form, is demonstrated. The influence of the fractional derivative index and the location of the roots of the characteristic polynomial transformed to the binomial form on the system operation is analyzed.

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A Comprehensive Review on Grid Connected Photovoltaic Inverters, Their Modulation Techniques, and Control Strategies

et al. 2020

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The installation of photovoltaic (PV) system for electrical power generation has gained a substantial interest in the power system for clean and green energy. However, having the intermittent characteristics of photovoltaic, its integration with the power system may cause certain uncertainties (voltage fluctuations, harmonics in output waveforms, etc.) leading towards reliability and stability issues. In PV systems, the power electronics play a significant role in energy harvesting and integration of grid-friendly power systems. Therefore, the reliability, efficiency, and cost-effectiveness of power converters are of main concern in the system design and are mainly dependent on the applied control strategy. This review article presents a comprehensive review on the grid-connected PV systems. A wide spectrum of different classifications and configurations of grid-connected inverters is presented. Different multi-level inverter topologies along with the modulation techniques are classified into many types and are elaborated in detail. Moreover, different control reference frames used in inverters are presented. In addition, different control strategies applied to inverters are discussed and a concise summary of the related literature review is presented in tabulated form. Finally, the scope of the research is briefly discussed.

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Fractional-order Feedback Linearization Sliding-mode Control Design for Grid-connected PV Inverters

Cited by 4 publications

References 12 publications

Robust fractional order sliding mode control for solar based DC-AC inverter

Robust fractional order sliding mode control for solar based DC-AC inverter

Control synthesis by full state vector in systems with fractional-order derivatives using Caputo-Fabrizio operator

A Comprehensive Review on Grid Connected Photovoltaic Inverters, Their Modulation Techniques, and Control Strategies

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