摘要 :
The interest towards improving the quality of power, which are supplied to the electronic equipments has been increasing to ensure the optimum utilization of power generated. A low power factor is responsible for reducing the acti...
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The interest towards improving the quality of power, which are supplied to the electronic equipments has been increasing to ensure the optimum utilization of power generated. A low power factor is responsible for reducing the active power that's available from the grid. Thus, it causes a high harmonic distortion of the line current eventually, which results in electromagnetic interference problems and cross-interferences, through the line impedance, between different systems connected to the same supply. The standard rectifier employing a diode bridge followed by a filter capacitor for DC utilities gives unacceptable performances in terms of power quality according to the rising benchmark set by recent developments in the relevant field. The most popular topology for power factor correction is certainly the boost topology. In this work, a power factor corrected boost converter has been designed and simulated in MATLAB and the proposed control strategy has been implemented.
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摘要 :
Shunt Active Power Filter (SAPF), when used with non linear loads, provides an elegant solution to reactive power compensation as well as harmonic mitigation leading to improvement in power quality. The present study deals with fu...
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Shunt Active Power Filter (SAPF), when used with non linear loads, provides an elegant solution to reactive power compensation as well as harmonic mitigation leading to improvement in power quality. The present study deals with fuzzy logic control for SAPF. Its superiority over PI type of controller is demonstrated through simulation results.
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摘要 :
Shunt Active Power Filter (SAPF), when used with non linear loads, provides an elegant solution to reactive power compensation as well as harmonic mitigation leading to improvement in power quality. The present study deals with fu...
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Shunt Active Power Filter (SAPF), when used with non linear loads, provides an elegant solution to reactive power compensation as well as harmonic mitigation leading to improvement in power quality. The present study deals with fuzzy logic control for SAPF. Its superiority over PI type of controller is demonstrated through simulation results.
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摘要 :
Dis-similar traditionalistic passive type harmonic power filters, modern active type harmonic power filters have the favorable multiple functions: harmonic filtering, damping, reactive-power control for power factor correction and...
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Dis-similar traditionalistic passive type harmonic power filters, modern active type harmonic power filters have the favorable multiple functions: harmonic filtering, damping, reactive-power control for power factor correction and voltage regulation, load balancing, voltage-flicker reduction etc., This paper presents a hybrid fuzzy logic controlled based improved power quality conditioner used to counterbalance for harmonic distortion in three-phase system. The IPQC employs a very simplest methodology for the calculation of the reference compensation current based on FFT Analysis. The presented improved power quality conditioner is able to operate in different load conditions (balanced, unbalanced, variable). Classical filters may not have adequate performance in fast varying conditions. But auto tuned active power filter gives outperform results for harmonic minimization, reactive power compensation and power factor improvement. The proposed auto tuned shunt active filter maintains the THD well within IEEE-519 standards. The proposed methodology is extensively tested for wide range of different Loads with Improved dynamic behavior of IPQC using hybrid fuzzy logic controller.
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摘要 :
Dis-similar traditionalistic passive type harmonic power filters, modern active type harmonic power filters have the favorable multiple functions: harmonic filtering, damping, reactive-power control for power factor correction and...
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Dis-similar traditionalistic passive type harmonic power filters, modern active type harmonic power filters have the favorable multiple functions: harmonic filtering, damping, reactive-power control for power factor correction and voltage regulation, load balancing, voltage-flicker reduction etc., This paper presents a hybrid fuzzy logic controlled based improved power quality conditioner used to counterbalance for harmonic distortion in three-phase system. The IPQC employs a very simplest methodology for the calculation of the reference compensation current based on FFT Analysis. The presented improved power quality conditioner is able to operate in different load conditions (balanced, unbalanced, variable). Classical filters may not have adequate performance in fast varying conditions. But auto tuned active power filter gives outperform results for harmonic minimization, reactive power compensation and power factor improvement. The proposed auto tuned shunt active filter maintains the THD well within IEEE-519 standards. The proposed methodology is extensively tested for wide range of different Loads with Improved dynamic behavior of IPQC using hybrid fuzzy logic controller.
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摘要 :
Dis-similar traditionalistic passive type harmonic power filters, modern active type harmonic power filters have the favorable multiple functions: harmonic filtering, damping, reactive-power control for power factor correction and...
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Dis-similar traditionalistic passive type harmonic power filters, modern active type harmonic power filters have the favorable multiple functions: harmonic filtering, damping, reactive-power control for power factor correction and voltage regulation, load balancing, voltage-flicker reduction etc., This paper presents a hybrid fuzzy logic controlled based improved power quality conditioner used to counterbalance for harmonic distortion in three-phase system. The IPQC employs a very simplest methodology for the calculation of the reference compensation current based on FFT Analysis. The presented improved power quality conditioner is able to operate in different load conditions (balanced, unbalanced, variable). Classical filters may not have adequate performance in fast varying conditions. But auto tuned active power filter gives outperform results for harmonic minimization, reactive power compensation and power factor improvement. The proposed auto tuned shunt active filter maintains the THD well within IEEE-519 standards. The proposed methodology is extensively tested for wide range of different Loads with Improved dynamic behavior of IPQC using hybrid fuzzy logic controller.
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摘要 :
This paper presents a novel method of reducing harmonic currents at the point of common coupling (PCC) in a three-phase diode bridge rectifier type utility interface. The proposed configuration consists of a current injection devi...
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This paper presents a novel method of reducing harmonic currents at the point of common coupling (PCC) in a three-phase diode bridge rectifier type utility interface. The proposed configuration consists of a current injection device, a newly designed current injection network and a properly tuned passive shunt filter. The paper also presents the design details of the current injection network and the passive filter. The proposed configuration performs well under varying loads on the rectifier. The effect of load variation on rectifier is also studied to demonstrate the effectiveness of the proposed ac-dc converter. A set of power quality indices on input ac mains and on dc bus is also presented.
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摘要 :
This paper presents a novel method of reducing harmonic currents at the point of common coupling (PCC) in a three-phase diode bridge rectifier type utility interface. The proposed configuration consists of a current injection devi...
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This paper presents a novel method of reducing harmonic currents at the point of common coupling (PCC) in a three-phase diode bridge rectifier type utility interface. The proposed configuration consists of a current injection device, a newly designed current injection network and a properly tuned passive shunt filter. The paper also presents the design details of the current injection network and the passive filter. The proposed configuration performs well under varying loads on the rectifier. The effect of load variation on rectifier is also studied to demonstrate the effectiveness of the proposed ac-dc converter. A set of power quality indices on input ac mains and on dc bus is also presented.
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摘要 :
Photovoltaic (PV) supported DSTATCOM is proposed in this paper. The existence of harmonic in the power system has increased due to the high usage of power electronics. Harmonics has contributed excessive distortion to the voltage ...
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Photovoltaic (PV) supported DSTATCOM is proposed in this paper. The existence of harmonic in the power system has increased due to the high usage of power electronics. Harmonics has contributed excessive distortion to the voltage and current waveform and eventually affecting the power system. To improve the performance of ac power systems, we need to manage reactive power in an efficient way. DSTATCOM provides reactive power compensation and source current harmonic reduction. The proposed DSTATCOM consists of a three-leg Voltage Source Converter with a DC bus capacitor. IcosΦ algorithm is used to extract reference current for the VSC. The PI controller is used to maintain the DC link voltage to the reference value. PV array is connected to the dc link of the converter through a boost converter. The gate signals to the VSC is generated by Pulse Width Modulation current controller. The performance of the proposed system is analysed under various non-linear and reactive loads. The real power injection is possible by interfacing PV array with DSTATCOM. Simulation studies have been performed by MATLAB/Simulink software. Simulation results have shown the success of the implemented system in reactive power compensation and minimum input current harmonic content.
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摘要 :
Photovoltaic (PV) supported DSTATCOM is proposed in this paper. The existence of harmonic in the power system has increased due to the high usage of power electronics. Harmonics has contributed excessive distortion to the voltage ...
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Photovoltaic (PV) supported DSTATCOM is proposed in this paper. The existence of harmonic in the power system has increased due to the high usage of power electronics. Harmonics has contributed excessive distortion to the voltage and current waveform and eventually affecting the power system. To improve the performance of ac power systems, we need to manage reactive power in an efficient way. DSTATCOM provides reactive power compensation and source current harmonic reduction. The proposed DSTATCOM consists of a three-leg Voltage Source Converter with a DC bus capacitor. IcosΦ algorithm is used to extract reference current for the VSC. The PI controller is used to maintain the DC link voltage to the reference value. PV array is connected to the dc link of the converter through a boost converter. The gate signals to the VSC is generated by Pulse Width Modulation current controller. The performance of the proposed system is analysed under various non-linear and reactive loads. The real power injection is possible by interfacing PV array with DSTATCOM. Simulation studies have been performed by MATLAB/Simulink software. Simulation results have shown the success of the implemented system in reactive power compensation and minimum input current harmonic content.
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