In [122], hysteresis current control technique is proposed as a closed loop at the primary level of the microgrid to reduce THD of grid current. In [123], a digital controller based on the robust ...
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Renewable energy sources have power quality and stability issues despite having vast benefits when integrated with the utility grid. High currents and voltages are introduced during the disconnection or injection from or into the power system. Due to excessive inverter switching frequencies, distorted voltage waveforms and high …
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DOI: 10.1109/TECHSYM.2010.5469205 Corpus ID: 12693409; Fixed and sinusoidal-band hysteresis current controller for PWM voltage source inverter with LC filter @article{Mohapatra2010FixedAS, title={Fixed and sinusoidal-band hysteresis current controller for PWM voltage source inverter with LC filter}, author={Mohamayee …
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A novel hysteresis current control concept for three-phase three-level PWM rectifiers is presented. The proposed control is based on a virtual connection of the output center point and the mains star point and achieves a decoupling of the three phases. This control technique, besides having the advantages of a classical hysteresis control, provides a …
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Several HCCT and modified HCCT (MHCCT) are implemented for Single Phase VSI (SPVSI). This paper suggests an novel HCCT for the same converter which provides the benefit of both unipolar and bipolar switching technique. This novel HCCT reduces switching loss, eliminates the EMI effect by reducing the higher order harmonics …
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The significance of Boost Converter, Maximum Power Point Tracking (MPPT) and the VSI has been the major aspects of the work. For the maximum extraction of power an intelligent Fuzzy Logic Control (FLC) algorithm is utilized. This paper describes a Phase Locked Loop (PLL)- less hysteresis current control technique for the PV based …
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This study two types of hysteresis based control techniques are applied (I) Hysteresis voltage control (HVC) (ii) Hystere sis current control (HCC) for the per formance evaluation of the grid-tied ...
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Before mapping, the estimated values of v an, v bn and v cn need to be centred in the level shifted carrier region. This can be done by adding a common mode offset value V offset1 [] to the estimated voltage references.Fig. 2b shows the phase-A voltage before and after the addition of this common mode offset. After the addition, the …
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hysteresis controller based STATCOM is proposed. The STATCOM modeled using Simulink of MATLAB. Simula-tion result of 6 pulse VSI based STATCOM validate current control strategy to prevent harmonics current and compensate reactive power. Index Terms:-Power Quality, Harmonics, Voltage Source Inverter. I. INTRODUCTION
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This VSI draw or supply a compensating current from the utility such that it cancels current harmonics on the AC side. STATCOM generates a current wave such that it compensate by cancelling out the non-linear current waveform generateted by load. In this paper hysteresis controller based STATCOM is proposed.
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DOI: 10.1109/IICPE.2011.5728110 Corpus ID: 25196625; A novel hysteresis control technique of VSI based STATCOM @article{Kantaria2011ANH, title={A novel hysteresis control technique …
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The global trends nowadays in the power generation industry are to supplement the electricity production using distributed generation (DG) technologies based on renewable energy resources such as photovoltaic, wind power, etc. However, failure to properly control the operation of distributed energy resources as they connect to the …
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This paper presents the design of VSI based STATCOM for eliminating harmonic currents due to non linear load and to compensate the reactive power in grid connected system. ... The co ntrol scheme ...
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A Novel Hysteresis Control Method for Current-controlled Voltage-source PWM Inverters With Constant Modulation Frequency (IEEE-TIA) - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Scribd is the world's …
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For the VSI-based drive system, current controllers are preferred for the high-performance drives because of their excellent dynamic behaviour. Among these current controllers, the hysteresis band (HB) current controller features inherent current limiting capability, robustness, no modulation stage and simple implementation, in addition to the ...
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The Voltage Source Inverter (VSI) based STATCOM is used for eliminating current harmonics and compensating reactive power. This VSI draw or supply a …
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Several HCCT and modified HCCT (MHCCT) are implemented for Single Phase VSI (SPVSI). This paper suggests an novel HCCT for the same converter which …
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Space vector PWM for a two-level VSI is generated by a combination of two zero vectors and six active vectors. The reference voltage to be applied is obtained by maintaining the volt-second balance with two active vectors and one or two zero vectors within a sector [].The vectors V 1 to V 6 denote active vectors with a magnitude of V DC; …
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The adaptive hysteresis band current controller, proposed by Bose [An adaptive hysteresis band current control technique of a voltage feed PWM inverter for machine drive system, IEEE Trans. Ind ...
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The theory, design, and implementation of a constant-frequency hysteresis current control for grid-connected voltage source inverter (VSI) is presented. The …
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2. The Proposed MPPT Technique Based on the Hysteresis Control The INC algorithm is among the most popular techniques used for MPPT of PV sys-tems. It has a simple process of tracking and does not require a large amount of memory space for implementation. The MPP is tracked by detecting the slope of the P-V curve of
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Improved current control technique of VSI PWM inverters with constant modulation frequency and extended voltage range ... "A novel hysteresis control method for current-controlled VSI PWM inverters with constant modula- tion frequency," presented at IEEE-IAS Ann. Mtg., Atlanta, Oct. 1987, pp. 851-855. ... It is based on substantial sity of ...
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Figure 1. Advantages of offset hysteresis band current controller (OFHCC). The contributions and key highlights of the paper are as follows: 1. Design of a novel IAOA optimization technique for a microgrid-connected PV sys-tem. 2. Application of conventional and offset hysteresis band current controller in a PV-based microgrid.
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In this paper, two control laws based respectively on hysteresis and pulse-width-modulation (PWM) techniques are applied on a unity-power-factor current-injection-based three-phase rectifier. A theoretical analysis is carried out in order to evaluate the performance of each technique, in terms of the line current ripple and the switching …
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This paper presented an AC electronic load composed of an ac to dc PWM voltage source converter and provided a new control in closed loop, based on hysteresis current control. The hysteresis control can uses a symmetrical or an asymmetrical hysteresis band, in this paper, implementing of random band hysteresis band permits a good control for output …
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The proposed control technique based on unit vec-tor template generation is explained in section III. A SIMPO-WERSYSTEM (SPS) Matlab/Simulink model based on pro- ... A …
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on a novel hysteresis ntrol technique of vsi based statm. V CONTROL TECHNIQUE FOR UPQC Technical literature on the . V CONTROL TECHNIQUE FOR UPQC …
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The Static Synchronous Compensator (STATCOM) is increasingly popular in power quality application. The Voltage Source Inverter (VSI) based STATCOM is used for eliminating current harmonics and compensating reactive power. This VSI draw or supply a compensating current from the utility such that it cancels current harmonics on the AC …
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N. This document presents a hysteresis current controller for single-phase three-level voltage source inverters. Conventional hysteresis current control has variable switching frequency that depends on load parameters, which makes the system complex. The proposed method modifies the hysteresis current controller to make the …
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The Voltage Source Inverter (VSI) based STATCOM is used for eliminating current harmonics and compensating reactive power. This VSI draw or supply a compensating current from the utility such that it cancels current harmonics on the AC. Download Sample Model Now! Buy Now ABSTRACT-The Static Synchronous …
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