Generalised modelling and sliding mode control for n-cell cascade super-lift DC–DC converters

Jiao, Yanping; Luo, Fang Lin; Zhu, Miao

doi:10.1049/iet-pel.2010.0049

Cited by 43 publications

(40 citation statements)

References 17 publications

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“…This is because of their universality and relative simplicity. One of the most interesting converters in the family of Luo converters is positive output superlift Luo (POSLL) converter [6][7][8][9]. In fact, these converters consist of three types of converters: elementary circuit, re-lift circuit, and triple-lift circuit.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Control for Positive Output Super Lift Luo Converter in Stand Alone Photovoltaic System

Fallahzadeh

Abjadi

Kargar

et al. 2020

IJE

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This paper proposes a stand-alone photovoltaic (PV) system based on a DC-DC positive output super lift Luo (POSLL) converter. A conventional sliding mode control, a sliding mode controller using a simple sign function and a linear controller using proportional integrator (PI) are used for the control of the PV panel voltage and POSLL converter inductor current and these methods are compared together. The POSLL converter is a DC-DC converter with higher voltage gain compared to other conventional DC-DC converters, and has a good voltage regulation with a simple structure. The stability and accessibility of the proposed nonlinear controls are investigated widely. The internal dynamics of the proposed closed-loop control systems are also investiged. A practical implementation of the system on a hardware setup is performed using a low cost Discovery real time digital control platform. The experimental and simulation results demonstrate the validity of the proposed control schemes over a stand-alone real photovoltaic system.

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Section: Introductionmentioning

confidence: 99%

Nonlinear Control for Positive Output Super Lift Luo Converter in Stand Alone Photovoltaic System

Fallahzadeh

Abjadi

Kargar

et al. 2020

IJE

View full text Add to dashboard Cite

show abstract

“…In addition, the large amount of switch current results in more conduction power loss and low efficiency. Recently, high step-up converters with two [11][12][13][14] and one [15][16][17][18][19][20] switch in their topology have been introduced. However, conversion ratios of these topologies are not large enough.…”

Section: Introductionmentioning

confidence: 99%

A single switch high step-up DC-DC converter with three winding coupled inductor

Mahmoudi

Babaei

2018

Int Trans Electr Energ Syst

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Summary A new high gain DC‐DC converter based on single switch and three‐winding coupled inductor is presented in this paper. Existence of a three‐winding coupled inductor in suggested topology has led to lift voltage gain by low number of windings' turn ratio. As a result, the main advantage of the proposed converter is to produce a high voltage gain without great values of duty cycle. The passive clamped technology is used in the proposed converter. It causes better performance for proposed converter by recycling the leakage inductance energy as well as restricting voltage stress by reducing great voltage spikes. In this paper, performance analysis and mathematical equations of the proposed converter are explained. In addition, variations of voltage gain as a result of leakage inductance and voltage and current stresses of power devices are studied, too. Moreover, performance of the suggested converter and the previously presented high gain ones are compared with together. Lately, a 200‐W prototype is constructed, and the experimental results approve the effectiveness of the proposed converter.

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“…Therefore, it is obvious to add a double integral term in the sliding-surface essential for ensuring reduced steady-state error [27,28]. However, the design of the sliding-surface becomes more challenging and would require tedious manipulations while deriving the equivalent control [29,30]. Moreover, due to a number of feedback signals, the resulting controller may not be practical.…”

Section: Introductionmentioning

confidence: 99%

A Fixed-Frequency Sliding-Mode Controller for Fourth-Order Class-D Amplifier

Zaman

Zheng

et al. 2018

Electronics

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Since the parasitic voltage ringing and switching power losses limit the operation of active devices at elevated frequencies; therefore, a higher‐order inductor‐capacitor (LC) filter is commonly used, which offers extended attenuation above the cutoff frequency and thus, improves the total harmonic distortion (THD) of the amplifier. This paper applies the concept of integral sliding‐mode control to a fourth‐order class‐D amplifier. Two fixed‐frequency double integral sliding‐mode (FFDISM) controllers are proposed, where one uses the inductor current while the other involves the capacitor current feedback. Their equivalent control equations are derived, but from the realization viewpoint, the controller using the capacitor current feedback is advantageous and, therefore, is selected for final implementation. The performance of the proposed FFDISM controller for fourth‐order GaN class‐D amplifier is confirmed using simulation and experimental results.

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Generalised modelling and sliding mode control for n-cell cascade super-lift DC–DC converters

Cited by 43 publications

References 17 publications

Nonlinear Control for Positive Output Super Lift Luo Converter in Stand Alone Photovoltaic System

Nonlinear Control for Positive Output Super Lift Luo Converter in Stand Alone Photovoltaic System

A single switch high step-up DC-DC converter with three winding coupled inductor

A Fixed-Frequency Sliding-Mode Controller for Fourth-Order Class-D Amplifier

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