Sliding Mode Control of Grid-connected Inverters Using Inverter Output Current

Afshar, Zakaria; Zadeh, Mahmoud Mollayousefi; Bathaee, S.M.T.

doi:10.1109/eeeic.2019.8783278

Cited by 11 publications

(7 citation statements)

References 16 publications

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“…In the proposed implementation, the PI part of the controller is responsible for monitoring the fundamental currents and controlling of the voltage on the DC bus, while the resonant controllers track the equivalent harmonic components of the reference currents i * d and i * q . A typical resonant controller has the form shown in (18) [27].…”

Section: Pi+resonant Current Controllermentioning

confidence: 99%

“…The need for tracking and compensating current harmonics, which are time-varying signals, discard many techniques from classical control. Among the options that have been proposed to solve this problem, there are some based on nonlinear control techniques, such as those based on sliding mode control (SMC), predictive control, and hysteresis band current controllers, among others [16][17][18]. In addition, some control schemes using Pro-portional+Resonant (PR) controllers in the stationary (αβ) were proposed [15], where the fundamental frequency is also tracked with a resonant controller.…”

Section: Introductionmentioning

confidence: 99%

“…In the case of implementation with SMC, THD levels lower than 5% can be achieved; however, the implementations carried out show that this control presents a high frequency ripple, which is usually above 2 kHz, which is caused by the sliding nature of this type of controller when tracking a reference [19]. This oscillation is often referred to as "chattering" [18]. More advanced schemes of SMC (second order sliding modes, such as "supertwisting") manage to mitigate this effect without it disappearing completely.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Harmonics Reduction and Reactive Power Injection in Wind Generation Systems

et al. 2021

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In this work, methods are implemented to improve two aspects of energy quality in a wind generation system. First, the harmonic reduction is achieved by applying a linear control technique in the Grid Side Converter; and second, the power factor of the wind generation system using a Doubly Fed Induction Generator (DFIG) is adjusted by injecting reactive power. The reduction of the harmonic content is performed with a digital resonant controller, which tracks the periodic signals corresponding to the current harmonics of the Grid Side Converter (GSC), which is part of a “back to back” converter in a wind generation system. This technique allows implementing a current controller of the GSC with a high level of rejection of current harmonics, of frequencies with orders (1 + 6k) and (1 − 6k) (where k is an integer), when executed in the synchronous reference frame (dq). The purpose of this work is to inject currents to the grid with very low harmonic distortion and provide a method for tuning the resonant controller for a simple L filter; also, the GSC is used to generate reactive power. These two improvements achieve a unity power factor, and this is necessary to comply with the new codes where a leading power factor helps regulate the grid voltage.

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Section: Pi+resonant Current Controllermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Harmonics Reduction and Reactive Power Injection in Wind Generation Systems

et al. 2021

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“…Various sliding mode control techniques were implemented for grid-connected single-phase inverters [9]. Chenchireddy et al [10] introduced second-order sliding mode control; while reference [11], [12] introduced adaptive fuzzy sliding mode control. The main objective of this method is to achieve precise control of the output current and reduce current harmonics in the 3-phase multilevel inverter.…”

Section: Introductionmentioning

confidence: 99%

Fundamental frequency switching strategies of a seven level hybrid cascaded H-bridge multilevel inverter

Chenchireddy,

Sreejyothi,

Ganesh

et al. 2024

IJAPE

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This paper presents a novel hybrid cascaded H-bridge multilevel inverter (HCHB MLI) designed to address the growing importance of multilevel inverters in the context of renewable energy sources such as solar, wind, and fuel cells. The proposed topology features eight insulated-gate bipolar transistor (IGBT) switches and utilizes two distinct input direct current (DC) sources: a battery and a capacitor, making it a hybrid system. The control strategy employed in this topology is based on fundamental switching frequency techniques. Simulation results of the proposed topology are conducted using MATLAB/Simulink software, while hardware experimentation with a single-phase H-bridge inverter is also demonstrated in the paper. For pulse generation and IGBT switch control, an Arduino UNO microcontroller is utilized. The output voltage of the single-phase H-bridge inverter is verified through experimentation using a cathode-ray oscilloscope (CRO).

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“…Without ignoring the nonlinearities and parasitic effects of the system, these nonlinear control strategies can achieve better performance (i.e., static, and dynamic). There are different nonlinear control methods, such as backstepping, feedback linearization, fuzzy control, sliding mode, and so on [24]- [30]. Among these different control techniques, sliding mode control (SMC) is considered one of the most robust strategies for controlling the uncertain nonlinear systems where it can offer many advantages such as high reliability, a low sensitivity against a parameter variation, fast dynamic response, and its easy design and implementation [31]- [33].…”

Section: Introductionmentioning

confidence: 99%

Improved Responses of Grid Connected Quadratic Boost Inverter Based on Super-Twisting Sliding Mode Control

Elmorshedy

Ali

Dabour

et al. 2022

IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society

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This paper proposes a new method for improving the performance of grid-connected single-stage Quadratic Boost Inverters (QBIs). Compared to the other single-stage boosting inverters, such as ZSI, qZSI, and the basic SSI, QBI has several advantages. It combines the features of a quadratic dc-dc boost converter and Split-Source Inverter (SSI) to give a high voltage gain. As a result, it offers superior benefits in reducing the overall system's complexity, size, and cost. The grid-connected QBI is traditionally controlled via two control loops. The first loop regulates the dc-link voltage using a PI controller, while the second controls the current injected into a grid using the decoupled control approach. In this paper, a sliding mode controller (SMC) is proposed for the grid-side controller to achieve accurate and quick responses instead of using the decoupled approach that is based on PI controllers. The basic principles and detailed analysis of the proposed method are introduced. Moreover, comprehensive simulation results based on the actual parameters of a prototype have verified the overall control system and the advantages of the proposed SMC compared to the PI controller.

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Sliding Mode Control of Grid-connected Inverters Using Inverter Output Current

Cited by 11 publications

References 16 publications

Harmonics Reduction and Reactive Power Injection in Wind Generation Systems

Harmonics Reduction and Reactive Power Injection in Wind Generation Systems

Fundamental frequency switching strategies of a seven level hybrid cascaded H-bridge multilevel inverter

Improved Responses of Grid Connected Quadratic Boost Inverter Based on Super-Twisting Sliding Mode Control

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