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Hybrid Active Power Filter
68,00 € *
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Recent proliferation of non-linear loads such as adjustable-speed motor drives, power supplies and inverters have raised serious concerns on the quality and reliability of electrical distribution networks. These loads draw excessive harmonic currents which interact with a wide range of power system components, causing significant deterioration in the power quality. Although traditional passive filtering has been commonly used to mitigate these problems, recent advances in power electronic converters have sparked the interest in active power filter (APF) approach. This book describes the design, analysis and implementation of a hybrid APF connected to a photovoltaic system. The integration improves the harmonic filtering performance of a basic shunt APF while simultaneously supplying power from the photovoltaic array to the load. The compensation current reference for the APF is derived from the extension instantaneous reactive-power theorem. It simplifies the current reference estimation, leading to a more efficient implementation using digital signal processor.

Anbieter: Dodax
Stand: 23.01.2020
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Mitigation of Load Harmonics from Grid Connecte...
57,50 € *
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An effective technique to mitigate harmonics from grid connected wind turbines. The proposed method comprised of shunt active power filter (APF). The switching of APF is carried out by hysteresis band current controller. In order to validate the system performance, two reference current generation techniques have been used (pq theory and SRF theory). The results achieved from SRF theory were satisfied and more accurate as compared to pq theory. The proposed controller mitigates the harmonics and satisfies the international harmonic standard set in IEEE-519.

Anbieter: Dodax AT
Stand: 23.01.2020
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Mitigation of Load Harmonics from Grid Connecte...
55,90 € *
ggf. zzgl. Versand

An effective technique to mitigate harmonics from grid connected wind turbines. The proposed method comprised of shunt active power filter (APF). The switching of APF is carried out by hysteresis band current controller. In order to validate the system performance, two reference current generation techniques have been used (pq theory and SRF theory). The results achieved from SRF theory were satisfied and more accurate as compared to pq theory. The proposed controller mitigates the harmonics and satisfies the international harmonic standard set in IEEE-519.

Anbieter: Dodax
Stand: 23.01.2020
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Studies on Control Algorithms for Series Hybrid...
66,80 € *
ggf. zzgl. Versand

Increased use of nonlinear loads brought about many technical conveniences and economical profits, but on the other hand it has exerted a continual growing influence on the power system's operating conditions. Active power filter (APF) emerged as an effective solution to the power quality problems caused by nonlinear loads and unbalanced sources. Out of various hybrid Active power filter (APF) configurations, the series hybrid active power filter (SHAPF) has become more popular in recent time. The SHAPF is capable of compensating both voltage harmonics generating load and current harmonics generating load. This research work includes the study and experimental validation of SHAPF with a novel control algorithm, to compensate source current harmonics and source voltage unbalances simultaneously. Simulation and experimental investigations is presented for evaluating the performance of different control algorithms of SHAPF. In the experimental prototype the control circuit is developed using ARM Cortex-M4 STM32F407VGT6 microcontroller. The experimental results confirm the effectiveness of the proposed control algorithm and also validate the simulation results.

Anbieter: Dodax AT
Stand: 23.01.2020
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Studies on Control Algorithms for Series Hybrid...
64,90 € *
ggf. zzgl. Versand

Increased use of nonlinear loads brought about many technical conveniences and economical profits, but on the other hand it has exerted a continual growing influence on the power system's operating conditions. Active power filter (APF) emerged as an effective solution to the power quality problems caused by nonlinear loads and unbalanced sources. Out of various hybrid Active power filter (APF) configurations, the series hybrid active power filter (SHAPF) has become more popular in recent time. The SHAPF is capable of compensating both voltage harmonics generating load and current harmonics generating load. This research work includes the study and experimental validation of SHAPF with a novel control algorithm, to compensate source current harmonics and source voltage unbalances simultaneously. Simulation and experimental investigations is presented for evaluating the performance of different control algorithms of SHAPF. In the experimental prototype the control circuit is developed using ARM Cortex-M4 STM32F407VGT6 microcontroller. The experimental results confirm the effectiveness of the proposed control algorithm and also validate the simulation results.

Anbieter: Dodax
Stand: 23.01.2020
Zum Angebot
Design and Control of Hybrid Active Power Filters
58,84 € *
ggf. zzgl. Versand

Design and Control of Hybrid Active Power Filters presents an overview of the current quality problems and their compensators. To get a balance between the system cost and performance, hybrid active power filters (HAPFs) are valuable. The book presents the coverage of resonance phenomena prevention capability, filtering performance and system robustness analysis of HAPF, nonlinear inverter current slope characteristics and their linear operation region requirement analysis of the hysteresis PWM for the HAPF, minimum inverter capacity design procedure of HAPF, adaptive dc-link voltage controller for the HAPF and the real design example of a 220V 10kVA HAPF, in which the system performance analysis method, minimum dc voltage deduction concept and adaptive dc voltage idea can be further extended into the other active compensators, such as APF, static synchronous compensator STATCOM, etc. This book will benefit researchers, graduate students, and electrical power engineers in the field of power-quality compensation.Dr. Chi-Seng Lam and Dr. Man-Chung Wong are both from the University of Macau, Macao, China.

Anbieter: Dodax
Stand: 23.01.2020
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Design and Control of Hybrid Active Power Filters
60,49 € *
ggf. zzgl. Versand

Design and Control of Hybrid Active Power Filters presents an overview of the current quality problems and their compensators. To get a balance between the system cost and performance, hybrid active power filters (HAPFs) are valuable. The book presents the coverage of resonance phenomena prevention capability, filtering performance and system robustness analysis of HAPF, nonlinear inverter current slope characteristics and their linear operation region requirement analysis of the hysteresis PWM for the HAPF, minimum inverter capacity design procedure of HAPF, adaptive dc-link voltage controller for the HAPF and the real design example of a 220V 10kVA HAPF, in which the system performance analysis method, minimum dc voltage deduction concept and adaptive dc voltage idea can be further extended into the other active compensators, such as APF, static synchronous compensator STATCOM, etc. This book will benefit researchers, graduate students, and electrical power engineers in the field of power-quality compensation.Dr. Chi-Seng Lam and Dr. Man-Chung Wong are both from the University of Macau, Macao, China.

Anbieter: Dodax AT
Stand: 23.01.2020
Zum Angebot
Control Strategies of Different Loads to Enhanc...
79,10 € *
ggf. zzgl. Versand

The proposed shunt active filter compensate for balance and unbalanced nonlinear load currents, adapt itself to compensate variations in nonlinear load currents, and correct power factor of the supply side near to unity. Proposed Active Power Filter (APF) topology limits %THD of source current under limits of IEEE-519 standard, and also have been observed that reactive power compensation has improved leading to power factor improvement. After checking the performance of the system for various load conditions with the above said list of control strategies, the hybrid filter / control technique is observed as more adoptable for the system in order to ensure the improved power quality. The validity of the presented controllers was proved by simulation of a three phase four wire test system under balanced, unbalanced and variable loading conditions. Finally all the control strategies are compared and the results are found to be quite satisfactory to mitigate harmonic Distortions, reactive power compensation and power factor correction.

Anbieter: Dodax AT
Stand: 23.01.2020
Zum Angebot
Control Strategies of Different Loads to Enhanc...
76,90 € *
ggf. zzgl. Versand

The proposed shunt active filter compensate for balance and unbalanced nonlinear load currents, adapt itself to compensate variations in nonlinear load currents, and correct power factor of the supply side near to unity. Proposed Active Power Filter (APF) topology limits %THD of source current under limits of IEEE-519 standard, and also have been observed that reactive power compensation has improved leading to power factor improvement. After checking the performance of the system for various load conditions with the above said list of control strategies, the hybrid filter / control technique is observed as more adoptable for the system in order to ensure the improved power quality. The validity of the presented controllers was proved by simulation of a three phase four wire test system under balanced, unbalanced and variable loading conditions. Finally all the control strategies are compared and the results are found to be quite satisfactory to mitigate harmonic Distortions, reactive power compensation and power factor correction.

Anbieter: Dodax
Stand: 23.01.2020
Zum Angebot