Power quality enhancement using fuzzy sliding mode based pulse width modulation control strategy for unified power quality conditioner

2017 ◽  
Vol 84 ◽  
pp. 153-167 ◽  
Author(s):  
Rajesh Kumar Patjoshi ◽  
Venkata Ratnam Kolluru ◽  
Kamalakanta Mahapatra
Keyword(s):  
Power Quality ◽  
Control Strategy ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Sliding Mode ◽  
Quality Enhancement ◽  
Unified Power Quality Conditioner ◽  
Fuzzy Sliding Mode ◽  
Modulation Control ◽  
Power Quality Conditioner

scholarly journals Improving Electrical Power Quality in Distribution Networks using a Unified Power Quality Conditioner (UPQC) Controlled by an Adaptive Hysteresis Band

2021 ◽  
Vol 23 (2) ◽  
pp. 91-109
Author(s):  
Marah Mariam ◽  
◽  
Hassan Kenjrawy
Keyword(s):  
Power Systems ◽  
Power Quality ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Electrical Power ◽  
Distribution Networks ◽  
Electrical Power Systems ◽  
Distortion Factor ◽  
Unified Power Quality Conditioner ◽  
Power Quality Conditioner

Recently the use of sensitive electronic devices has increased, and the quality of energy has become an important factor in electrical power systems, where disturbances occurring in the network (harmonics, swell, voltage sag, etc.) affect consumers and lead to technical-economic damages. One of the most prominent solutions to address energy quality problems is the UPQC (Unified Power Quality Conditioner). In this paper, the unified power quality conditioner used to improve the electrical power quality in the distribution networks was discussed, where the Park transformations are used to obtain the required reference signals, and also the use of adaptive hysteresis band to generate the electronic switch pulses in both serial and shunt switches, where the pulse width is determined by dependence on fuzzy logic. The studied system was validated by simulating different distortion cases and comparing the results when using the Sinusoidal Pulse Width Modulation (SPWM) to control the two switches. The results showed improvement in the electrical power quality through the use of an adaptive hysteresis band controller, and that appeared by reducing the total distortion factor (THD%), which resulted in improving the shape of both the voltage and current waveforms.

Integrated Nine-Switch Power Converter Based on Discontinuous Pulse-Width Modulation

2012 ◽  
Vol 214 ◽  
pp. 71-75
Author(s):  
Qin Wang
Keyword(s):  
Power Quality ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Power Converter ◽  
Unified Power Quality Conditioner ◽  
Attractive Option ◽  
In Series ◽  
Switch Power ◽  
Power Quality Conditioner

This paper evaluates the shortcomings of the application experience before nine-switch the newly proposed converter. A better understanding of development, the conclusion is, nine-switch converter is not an attractive option "alternative of two consecutive converter parallel of the bridge. Instead, nine-switch converter is more suitable for replace back-to-back inverter in" series-shunt "of the system, in a good example is the unified power quality conditioner.

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