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3-Phase 4-Wire VSC to Compensate Unbalance and ...
49,90 € *
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The use of nonlinear loads at the consumer end in form of power electronic converters, UPS, electric arc furnaces, and growing use of adjustable speed motor drives is increasing day by day. Most of the pollution issues created in power system is because of the nonlinear nature of loads, it injects harmonics to the source side.To overcome this problem APF (Active power filter) has gained more attention because of its excellent performance of harmonic mitigation. Instantaneousreactivepower theory (IRP), also known as p-q theory can be used to derive a controlalgorithmfor3-phase 3-wire and 3-phase4-wire VSC to mitigate harmoniccurrentsunderbalanced and unbalanced non-linearload. 3-phase 3-wire VSC is the cost effective solution, but it has some disadvantages. The lack of a neutral wire in 3-phase 3-wire VSC results in higher filter losses and therefore reduced efficiency. Two control techniques i.e. Hysteresis Band Current Control and Carrier Based PWM are implemented for threedifferentload conditions.In both the cases the % THD has been reduced under IEEE 519 standards. The reduction of harmonics is better in case of Hysteresis current control method as it requires only bandwidth val

Anbieter: Dodax
Stand: 23.01.2020
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Power Quality Issues
159,90 CHF *
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Power Quality Issues: Current Harmonics provides solutions for the mitigation of power quality problems related to harmonics. Focusing on active power filters (APFs) due to their excellent harmonic and reactive power compensation in two-wire (single phase), three-wire (three-phase without neutral), and four-wire (three-phase with neutral) AC power networks with nonlinear loads, the text: Introduces the APF technology, describing various APF configurations and offering guidelines for the selection of APFs for specific application considerations Compares shunt active filter (SHAF) control strategies for extracting three-phase reference currents, evaluating their performance under a number of source voltage conditions using a proportional-integral (PI) controller Presents PI controller-based SHAF instantaneous active and reactive power (p-q) and instantaneous active and reactive current (Id-Iq) control strategies, supplying detailed MATLAB®/Simulink simulation results Proposes SHAF control strategies using type 1 and type 2 fuzzy logic controllers (FLCs) with different fuzzy membership functions (MFs), analyzing their harmonic mitigation and DC link voltage regulation Verifies the proposed type 2 FLC-based SHAF control strategies with trapezoidal, triangular, and Gaussian fuzzy MFs using RT-LAB, a real-time digital simulation software from OPAL-RT Technologies Power Quality Issues: Current Harmonics is a useful resource for those tackling electrical power quality challenges. The compensation techniques described in this book alleviate harmonic issues that can distort voltage waveforms, fry a building's wiring, trigger nuisance tripping, overheat transformer units, and cause random end-user equipment failure.

Anbieter: Orell Fuessli CH
Stand: 23.01.2020
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Power Quality Issues
142,90 € *
ggf. zzgl. Versand

Power Quality Issues: Current Harmonics provides solutions for the mitigation of power quality problems related to harmonics. Focusing on active power filters (APFs) due to their excellent harmonic and reactive power compensation in two-wire (single phase), three-wire (three-phase without neutral), and four-wire (three-phase with neutral) AC power networks with nonlinear loads, the text: Introduces the APF technology, describing various APF configurations and offering guidelines for the selection of APFs for specific application considerations Compares shunt active filter (SHAF) control strategies for extracting three-phase reference currents, evaluating their performance under a number of source voltage conditions using a proportional-integral (PI) controller Presents PI controller-based SHAF instantaneous active and reactive power (p-q) and instantaneous active and reactive current (Id-Iq) control strategies, supplying detailed MATLAB®/Simulink simulation results Proposes SHAF control strategies using type 1 and type 2 fuzzy logic controllers (FLCs) with different fuzzy membership functions (MFs), analyzing their harmonic mitigation and DC link voltage regulation Verifies the proposed type 2 FLC-based SHAF control strategies with trapezoidal, triangular, and Gaussian fuzzy MFs using RT-LAB, a real-time digital simulation software from OPAL-RT Technologies Power Quality Issues: Current Harmonics is a useful resource for those tackling electrical power quality challenges. The compensation techniques described in this book alleviate harmonic issues that can distort voltage waveforms, fry a building's wiring, trigger nuisance tripping, overheat transformer units, and cause random end-user equipment failure.

Anbieter: Thalia AT
Stand: 23.01.2020
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