scholarly journals Single-Phase to Three-Phase Unified Power Quality Conditioner for Power Factor Improvement Using Fuzzy Logic Controller

Author(s):  
Thumuganti Ramya ◽  
Dhavala Pranusha

This paper manages the arrangement of a nearby three stage four wire (3P4W) electrical power appropriation framework (EPDS), utilizing a solitary to three stage bound together power quality conditioner (UPQC) topology with fluffy controller , called UPQC 1Ph to 3Ph. The topology is shown for applications in country or remote zones in which, for financial reasons, just EPDS with single wire earth return are open to the buyer. Since the utilization of three stage loads is expanding in these regions, access to a three stage dispersion framework ends up dominant. By embracing a double pay methodology, the proposed UPQC 1Ph to 3Ph is capable of depleting from the single stage electrical framework a sinusoidal flow and in stage with the voltage, coming about high power factor. Moreover, the framework is likewise ready to stifle lattice voltage sounds, just as to make up for different aggravations, for example, voltage lists. In this proposed topology we are utilizing fluffy rationale controller to Single-Phase To Three-Phase Unified Power Quality Conditioner to decrease of the music and execution will be expanded. Along these lines, a 3P4W framework with fluffy managed, offset and sinusoidal voltages with low consonant substance is accommodated single and three stage loads. An examination of the power move through the arrangement and parallel converters is performed so as to help the structuring of the power converters. Reenactment results are exhibited for approving the proposition of fluffy, just as assessing the static and dynamic exhibitions of the proposed topology.

Author(s):  
Madhusmita Patro ◽  
Kanhu Charan Bhuyan

<p>Power quality has become an important factor in power systems, for consumer and household appliances. The main causes of poor power quality are harmonic currents, poor power factor, supply voltage variations etc. A technique of achieving both active current distortion compensation, power factor correction and also mitigating the supply voltage variations at load side is compensated by unique device UPQC presented in this thesis. This concept presents a multi loop based controller to compensate power quality problems through a three phase four wire unified power quality conditioner (UPQC) under unbalanced and distorted load conditions. Here the UPQC is constituted of two voltage source converters (VSC) connected via power link. The series compensator is connected to the line in series and injects the voltage and thus compensates for voltage issues; whereas the shunt compensator injects current thus compensating for current issues, and is connected in shunt to the line. The voltage injection to the line uses an injecting transformer. The injection transformer is later replaced with injection capacitors, thus eliminating the drawback of conventional UPQC. In this way a good power quality is maintained.</p>


Author(s):  
Madhusmita Patro ◽  
Kanhu Charan Bhuyan

<p>Power quality has become an important factor in power systems, for consumer and household appliances. The main causes of poor power quality are har ue of achieving active current distortion compensation, power factor monic currents, poor power factor, supply voltage variations etc. A techniq correction and also mitigating the supply voltage variations at load side is compensated by unique device UPQC presented in this thesis. This concept presents a multi loop based controller to compensate power quality problems through a three phase four wire Unified Power Quality Conditioner (UPQC) under unbalanced and distorted load conditions. Here the UPQC is constituted of two Voltage Source Converters (VSC) connected via power link. The series compensator is connected to the line in series and injects the voltage and thus compensates for voltage issues; whereas the shunt compensator injects current thus compensating for current issues, and is connected in shunt to the line. The voltage injection to the line uses an ijecting transformer. The injection transformer is later replaced with injection capacitors, thus eliminating the drawback of conventional UPQC. In this way a good power quality is maintained</p>


Author(s):  
M. R. Mohanraj ◽  
R. Prakash

Power quality improvement is one of the central and critical needs in all types of power-driven industries for perfect utilization of sources. However, fundamental inconveniences in power quality have been recognized, for instance, sags, swells, harmonic distortions and different blocks. Among those, sags and swells are overwhelmingly uncovered, and each influences the electrical gadgets or electrical machines and this requires to be compensated with an advancement to ensure any mal-operation or disappointment. To settle these troubles, custom power gadgets are used like unified power quality conditioner (UPQC), dynamic voltage restorer (DVR) and Distributed Static Compensator (DSTATCOM). This work aims to update the power quality in both single-phase and three-phase system using UPQC. The capacity of UPQC to mitigate voltage sag, voltage swell, responsive power remuneration, load balancing, zero voltage direction, and power factor redress and Total Harmonics Distortion (THD) in the appropriation framework is done by utilizing adaptive distributed power balanced control (ADPBC) method. This investigation works on the single-phase UPQC design to utilize two H-connect setups with eight switches and the three-phase UPQC arrangement to use four legs and three-phase four wire course of action. The overall function of the UPQC with distributed generation (DG) system will be able to compensate for the offset voltage and current disturbances with all the compensated data being collected and verified in Internet of Things (IoT) based on conditional Random Fields (CRFs).


2014 ◽  
Vol 573 ◽  
pp. 690-695
Author(s):  
Ragavan Saravanan ◽  
P.S. Manoharan

The Unified Power Quality Conditioner plays an important role in the constrained delivery of electrical power from a source to an isolated pool of load or from a source to the grid. This article is presented new control approaches for both series and shunt inverter. The proposed control algorithm for series and shunt converters based on FLC and synchronous reference frame theory respectively. The proposed approach eliminates the total harmonic distortions (THD) efficiently, and mitigates sag and swell present in the linear and nonlinear loads.


Sign in / Sign up

Export Citation Format

Share Document