Simulation and experiment of algorithm and circuit design for UPQC

The deployment of power electronic devices has become a big concern for power quality in these days. The voltage stabilization of power distribution networks interconnected with Photo Voltaic (PV) is very critical in promoting the smooth operation of all linked devices in the distribution system. Voltage profile maintenance is one of the challenges in PV integration into the grid. Conventional devices such as passive filters, series and shunt filters, synchronous condensers, etc. are insufficient to alleviate numerous problems of power quality. The series compensator is used for voltage quality and the shunt compensator is used for current quality. Also, if these two problems of power quality are simultaneously mitigated, the device is used in the distribution system known as Unified Active Power Filter (UAPF). The shunt and series compensator of UAPF is equipped with a Z-source inverter (ZSI). This paper addresses voltage and current associated existing power quality concerns which including voltage sag, voltage swell, voltage and current distortion and simulates the UAPF device to alleviate these problems. The Unit Vector Template Generation (UVTG) with Improved Second Order Generalized Integrator (ISOGI) based Phase Locked Loop (PLL) is utilized for UAPF controller simulation and experimental results validated the proposed work.

show abstract

“…In the n th sample instant, the Proportional Integral(PI) controller output is calculated by Equation (9).…”

Section: Sm =mentioning

confidence: 99%

Experimental validation of solar PV sustained ZSI based Unified Active Power Filter for enrichment of power quality

Parthiban¹,

Vijayakumar²

2021

Automatika

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show abstract

“…In the n th sample instant, the Proportional Integral(PI) controller output is calculated by Eq. (9).…”

Section: Shunt Compensator Controlmentioning

confidence: 99%

“…The study indicates the two main types of active power filters, that is to mention series active power filters and shunt active power filters. The series active filter mitigates all power quality concerns correlated with voltage whereas the shunt active power filter is used for all current associated power quality issues [8,9].…”

Section: Introductionmentioning

confidence: 99%

Experimental validation of solar PV sustained ZSI based unified active power filter for enrichment of power quality

Parthiban¹,

Madhaiyan²

2021

Automatika

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The deployment of power electronic devices has become a big concern for power quality in these days. The voltage stabilization of power distribution networks interconnected with Photo Voltaic (PV) is very critical in promoting the smooth operation of all linked devices in the distribution system. Voltage profile maintenance is one of the challenges in PV integration into the grid. Conventional devices such as passive filters, series and shunt filters, synchronous condensers, etc. are insufficient to alleviate numerous problems of power quality. The series compensator is used for voltage quality and the shunt compensator is used for current quality. Also, if these two problems of power quality are simultaneously mitigated, the device is used in the distribution system known as Unified Active Power Filter (UAPF). The shunt and series compensator of UAPF is equipped with a Z-source inverter(ZSI). This paper addresses voltage and current associated existing power quality concerns which including voltage sag, voltage swell, voltage and current distortion and simulates the UAPF device to alleviate these problems. The Unit Vector Template Generation (UVTG) with Improved Second Order Generalized Integrator (ISOGI) based Phase Locked Loop (PLL) is utilized for UAPF controller simulation and experimental results validated the proposed work.

show abstract

“…The traditional SOGI algorithm cannot eliminate DC offset and inter harmonic elements present in the input load currents. For the DC offset attenuation, a low-pass filter can be inserted into the system, but it again disrupts traditional SOGI algorithm filter efficiency [22].…”

Section: Control Scheme Of Solar Pv Interconnected Zsi-based Dvrmentioning

confidence: 99%

Implementation of solar PV system unified ZSI-based dynamic voltage restorer with U-SOGI control scheme for power quality improvement

Jayakumar¹,

Stonier²

2020

Automatika

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The main challenge in today's power system is to supply continuous, reliable power and satisfy the high demand. The incorporation of renewable energy sources into the utility grid system can be accomplished. However, the renewable sources are intermittent in nature and the loads work dynamically and cause imbalances to the system voltage within an immediate time. Intermittent renewable sources affect the voltage of the power grid system. Photovoltaic (PV) power generation with Z-source inverter (ZSI)-based dynamic voltage restorer (DVR) is used to avoid that. For step-up low DC voltage to required AC voltage for the compensation of the voltage disturbance, ZSI with the energy storage impedance network is used. DC-DC converters connect the PV cell and the battery storage to the impedance source network. This article also incorporates an upgraded second-order generalized integrator (U-SOGI) control system for the generation of reference voltage signals. The U-SOGI control reference voltage generation approach greatly improves system performance and decreases the harmonic voltage. The voltage-related problems in the system connected to the utility grid are mitigated with DVR. In different load and source conditions, the PV generation with DVR performance is verified by the digital simulation and experimental prototype.

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Simulation and experiment of algorithm and circuit design for UPQC

Cited by 8 publications

References 16 publications

Experimental validation of solar PV sustained ZSI based Unified Active Power Filter for enrichment of power quality

Experimental validation of solar PV sustained ZSI based Unified Active Power Filter for enrichment of power quality

Experimental validation of solar PV sustained ZSI based unified active power filter for enrichment of power quality

Implementation of solar PV system unified ZSI-based dynamic voltage restorer with U-SOGI control scheme for power quality improvement

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