Modeling &amp; Simulation of Hysteresis Current Controlled Inverters Using MATLAB

Albanna, Ahmad

doi:10.5772/21143

Cited by 14 publications

(8 citation statements)

References 5 publications

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“…Line harmonic generation from this inverter depends principally on the particular switching pattern applied to the valves. The switching pattern of hysteresis inverters is produced through line current feedback and it is not predetermined unlike the case, for instance, of Sinusoidal PulseWidth Modulation (SPWM), where the inverter switching function is independent of the instantaneous line current and the inverter harmonics can be obtained from the switching ) 1 ( Im Im Im [7]. The hysteresis modulation for power electronic converters is preferred for applications, where performance requirements are more demanding, such as to achieve good dynamic response, unconditional stability, and wide command-tracking bandwidth [8].…”

Section: Single Phase Hysteresis Current Controlled Invertermentioning

confidence: 99%

The beneficial effect of filtering in current controlled inverter

Azim

Zaman

Rahman

2014

16th Int'l Conf. Computer and Information Technology

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An approach of harmonics component analysis, portraying the presence of certain amount of harmonics at the inverter output terminal, has been indicated in this paper. Some unwanted impacts are caused by the harmonics such as unbalance and excessive neutral currents, interference in nearby communication networks and disturbance to other consumer, torque pulsations in electric motor drives are and so on. Thus, the minimization of the harmonics contained in the output of a single phase current controlled inverter undergoing hysteresis modulation technique is important so as to get rid of these detrimental effects. With a view to reducing the assumed 3 rd order harmonics, an LC low pass filter is used in this paper that blocks the harmonics and undeniably passes almost a sinusoidal output at the output terminal. It has been found from the simulation that the Total Harmonic Distortion (THD) is just above 33% during the existence of up to 3 rd order harmonics, although it is predicted to be 0% in ideal case, and more importantly, that can be slumped to 0.00003% by the application of an LC low pass filter.

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Section: Single Phase Hysteresis Current Controlled Invertermentioning

confidence: 99%

The beneficial effect of filtering in current controlled inverter

Azim

Zaman

Rahman

2014

16th Int'l Conf. Computer and Information Technology

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“…On comparing actual and reference currents, a current error is obtained, which is fed to a BBCC. The BBCC shall generate switching signals for IGBTs of STATCOM [25,26]. Figure 4 shows the method for obtaining switching signals for IGBTs of STATCOM.…”

Section: Bang-bang Current Controller (Bbcc)mentioning

confidence: 99%

Fuzzy Logic Controller for Power Balance Theory Based STATCOM for Grid Connected Wind Turbine System

Reddy¹,

Manohar²

2018

IJEECS

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<p>The use of renewable power sources, like wind power, has been increased recently due to climatic changes caused by fossil fuels and fast depletion of fossil fuels. This has lead to the tremendous increase in the interconnection of wind turbines to power system grid. This interconnection on a large number in to grid causes problems such as power quality, maintaining system voltage, reactive power compensation, control of grid frequency and aspects of power system grid stability. In this proposed scheme, a fuzzy logic based controller is employed for a STATCOM to improve the power quality. The proposed control scheme supplies the required reactive power to the system and thus relieves the source, leading to Unity Power Factor (UPF) at the source and also it injects currents to reduce total harmonic distortion (THD) to satisfy IEC standard. For extracting the reference currents, a power balance theory based control algorithm is employed. To determine the effectiveness of the proposed fuzzy logic controller, a comparative analysis is also performed with a PI controller and the results have been presented.</p>

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“…On comparing actual and IJEEI ISSN: 2089-3272  reference currents, a current error is obtained, which is fed to a BBCC. The BBCC shall generate switching signals for IGBTs of STATCOM [27,28]. Figure 4 shows the method for obtaining switching signals.…”

Section: Bang-bang Current Controller (Bbcc)mentioning

confidence: 99%

Fuzzy Logic Controller for grid connected Wind Energy Conversion System

Reddy

Manohar

2018

IJEEI

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The use of renewable power sources, like wind power, has been increased recently due to climatic changes caused by fossil fuels and fast depletion of fossil fuels. This has lead to the tremendous increase in the interconnection of wind turbines to power system grid. This interconnection on a large number in to grid causes problems such as power quality, maintaining system voltage, reactive power compensation, control of grid frequency and aspects of power system grid stability. In this proposed scheme, a fuzzy logic based controller is employed for a STATCOM to improve the power quality. The proposed control scheme supplies the required reactive power to the system and thus relieves the source, leading to Unity Power Factor (UPF) at the source and also it injects currents to reduce total harmonic distortion (THD) to satisfy IEC standard. For extracting the reference currents, an instantaneous reactive power theory based control algorithm is employed. To determine the effectiveness of the proposed fuzzy logic controller, a comparative analysis is also performed with a PI controller and the results have been presented.

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Modeling & Simulation of Hysteresis Current Controlled Inverters Using MATLAB

Abstract: 2s i n aa vV t   . Fig.2 compares the reference voltage to the instantaneous inverter voltage resulting from the action of the hysteresis loop.

Cited by 14 publications

References 5 publications

The beneficial effect of filtering in current controlled inverter

The beneficial effect of filtering in current controlled inverter

Fuzzy Logic Controller for Power Balance Theory Based STATCOM for Grid Connected Wind Turbine System

Fuzzy Logic Controller for grid connected Wind Energy Conversion System

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