Dynamic sliding mode control of single‐stage boost inverter with parametric uncertainties and delay

Mohammadhassani, Farideh; Narm, Hossein Gholizade

doi:10.1049/pel2.12096

Cited by 8 publications

(6 citation statements)

References 36 publications

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“…The SMC is a nonlinear controller which is suitable for nonlinear systems. In the case of SMC, the manipulated parameter is pushed between two extremes such that the deviation of the controlled parameter from the desired value is pushed towards the set value such that the controlled parameter is always within the acceptable vicinity of the set value [31]. For example, by the application of the SMC the controlled parameter may swing between positive and negative errors of 0.01 about the desired value.…”

Section: Smc Based Mpptmentioning

confidence: 99%

Design of a Partial Resonant Inverter for solar photovoltaic applications

Vidhya

Muralidharan

Ravikumar³

2021

Automatika

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This paper presents a solar-powered Partial Resonant Inverter (PRI) interfaced with an asymmetrical cascaded nine-level inverter. The DC input of the proposed system is obtained using Solar Photovoltaic (SPV) panel. The input DC sources fed to the asymmetrical cascaded nine-level inverter are in the ratio of 1:3. The step modulated nine-level inverter works with a precalculated switching angle for a fixed modulation of 0.7. Compared to the conventional 50 Hz inverter and the multi-output transformer design, the proposed system is more compact because of the high-frequency AC link. The PRI ensures Zero Voltage Switching (ZVS) and reduces the switching losses. The proposed scheme has been validated in the MATLAB/ SIMULINK environment and an experimental prototype is built in the laboratory. Based on the investigations the Selective Harmonic Elimination (SHE) method gives superior performance when compared to the Optimal Harmonic Stepped Modulation (OHSM) method. From the results and comparative analysis, the proposed system uses fewer switches to obtain the nine-level output, uses the PRI setup with the multioutput transformer to make the design compact and improves the power quality of the system.

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Section: Smc Based Mpptmentioning

confidence: 99%

Design of a Partial Resonant Inverter for solar photovoltaic applications

Vidhya

Muralidharan

Ravikumar³

2021

Automatika

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“…The fundamental characteristic of these devices is that they frequently produce nonlinear dynamic models that make it difficult to use traditional linear controllers including proportional-integral (PI) and parameter feedback designs. This is mainly because commutated devices are included in their electrical circuits [11][12][13][14][15][16][17]. Due to the nonlinear characteristics of the system and the stability of the sliding-mode control (SMC) against parameter fluctuations, SMC has been widely employed as a voltage controller for PV Cell systems.…”

Section: Introductionmentioning

confidence: 99%

Analysis and small‐signal modelling technique for support bus DC‐link of front‐end coupling inductance high step‐up single switch boost converter in low voltage renewable source

Bilsalam,

Ketprapajun,

Insri

et al. 2023

IET Power Electronics

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This study proposes a non‐isolated DC converter, which is connected in series with an inverter, with a high output voltage conversion ratio for application in electricity generation systems to upgrade low‐voltage to high‐voltage DC. The topology of the proposed converter is based on a boost converter, which has the limitation of a low voltage conversion ratio. The converter is developed and connected using a coupling inductance technique by adding a second winding L2 coupled with the prototype winding and diode D2. This technique increases the voltage ratio via the ratio operator (N) of both the induction coils by operating a single switch at a constant frequency of 60 kHz. The working principle of the proposed converter is based on pulse width modulation with a duty cycle ≤40%. When the converter receives a low voltage DC input of 36 V, it converts the input to a high output voltage of 325 V at an output power 125 W, showing a circuit efficiency of 92.48% at full load. The synthesis and design of the controller include a linear approach to represent the parameters using the small signal methodology, which is employed to establish a transfer function. Furthermore, the proposed converter is capable of effectively regulating the output voltage, even when subjected to variations in the output load by employing a proportional–integral control mechanism. The close loop results obtained from simulations and practical implementation verified the proposed circuit design, as both results agreed with the theoretical analysis.

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“…Voltage boosting is needed in many applications, such as renewable energy, electric vehicles (EVs), and so forth 7 . However, voltage source inverters (VSIs) do not have this capability.…”

Section: Introductionmentioning

confidence: 99%

Compact three‐phase multilevel inverter with boosting capability for low‐power three‐phase induction motor drive

Kheyri,

Narm,

Babaei

2023

Circuit Theory & Apps

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SummaryThis paper proposes a step‐up three‐phase multilevel inverter based on switched capacitor (SC) cells. The prominent features of this inverter are the reduction of the number of components (such as switches, capacitors, and sources) and the ability to boost the voltage. Also, the self‐voltage balancing of the capacitors of this inverter is one of the other features of this inverter. The level‐shifted pulse width modulation (LS‐PWM) method has been used for switching, making the output currents' total harmonic distortion (THD) low. The article has presented the experimental results of this inverter with a three‐phase induction motor with a power of 1.1 kW as a load.

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Dynamic sliding mode control of single‐stage boost inverter with parametric uncertainties and delay

Cited by 8 publications

References 36 publications

Design of a Partial Resonant Inverter for solar photovoltaic applications

Design of a Partial Resonant Inverter for solar photovoltaic applications

Analysis and small‐signal modelling technique for support bus DC‐link of front‐end coupling inductance high step‐up single switch boost converter in low voltage renewable source

Compact three‐phase multilevel inverter with boosting capability for low‐power three‐phase induction motor drive

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