scholarly journals Integration Monitoring of On-grid Photovoltaic System: Case Study

2019 ◽  
Vol 63 (2) ◽  
pp. 99-105 ◽  
Author(s):  
Michał Jasiński ◽  
Jacek Rezmer ◽  
Tomasz Sikorski ◽  
Jarosław Szymańda
Keyword(s):  
Power Quality ◽  
Electrical Power ◽  
Weather Condition ◽  
Weather Conditions ◽  
Photovoltaic System ◽  
Monitoring Systems ◽  
Electrical Power System ◽  
Pv System ◽  
Power And Energy

The aim of the paper is to present possible using of monitoring systems associated with photovoltaic systems (PV) in point of its integration with electrical power system (EPS). Presented investigations is a case study of 15 kW Scientific Photovoltaic System. The paper contains a description of applied control and monitoring systems including monitoring of PV panels parameters, weather condition, PV DC/AC inverters as well as special monitoring systems dedicated to power quality (PQ) and shape of voltage and current. The aim of the paper is to exhibit a possibility to combine different monitoring systems of the PV in order to improve evaluation of integration of PV with EPS. Presented example contains selected elements of power quality assessment, power and energy production, weather conditions for selected period of PV system working time.

scholarly journals Feasibility Study on Installation of Rooftop Photovoltaic System in Complied with Thailand Energy Building Code

2020 ◽  
Vol 186 ◽  
pp. 01004
Author(s):  
Pathomthat Chiradeja ◽  
Atthapol Ngaopitakkul
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Electrical Power ◽  
Current Trend ◽  
Building Energy ◽  
Photovoltaic System ◽  
Solar Pv ◽  
Economic Perspective ◽  
Pv System

Renewable energy especially solar energy has become a significant part in electrical power generation with its advantage in the environmentally friendly and current trend of decrease in installation cost. The photovoltaic (PV) system on a rooftop is one of the power generating system based on renewable energy that can fit building to utilize space efficiently. This paper is analyzing the feasibility of installing a solar PV rooftop on the building using a case study building located in Bangkok, Thailand. The performance will be evaluated in term of both energy and economic perspective. The comparison with Thailand building energy code also been done to show that overall energy consumption with PV system complies with the law. The result has shown that with rooftop photovoltaic system installation, annual energy consumption in the building can be reduced significantly and it can achieve feasibility in term of economic perspective.

Research on China's First Residential Grid-Connected Photovoltaic System

2013 ◽  
Vol 392 ◽  
pp. 563-567
Author(s):  
Yan Jie Dai ◽  
Chun Yan Sun ◽  
Xiao Yong Wang ◽  
Wei Hua Yang
Keyword(s):  
Power Generation ◽  
Power Quality ◽  
Electrical Power ◽  
Photovoltaic System ◽  
Pv System ◽  
Quality Analyzer ◽  
Low Efficiency ◽  
Power Metering ◽  
Pv Power Generation ◽  
Power Standard

Along with the continuous expansion of photovoltaic (PV) power generation, different capacity of grid connected PV system is gradually increased. China's first residential grid-connected PV system has interconnected successfully in QingDao and operated normally. This document analyzed electrical connected diagram of grid-connected PV system. Using power quality analyzer, the online power quality is monitored and analyzed. When PV power generation is low efficiency of operating state, harmonic current is over distortion limits. Monitoring data was simulated through electrical power standard source. To ensure power metering accuracy under harmonic, the watt-second method is proposed. Testing results show that smart electrical meter can meter accurately within 20 times harmonics.

scholarly journals Assessment and Analysis of a Grid-Tied Photovoltaic System with Net-Metering for State University in Pampanga

2019 ◽  
Vol 9 (2) ◽  
pp. 1846-1849
Keyword(s):  
Alternative Energy ◽  
Electrical Power ◽  
Photovoltaic System ◽  
State University ◽  
Electrical Power System ◽  
Pv System ◽  
Main Campus ◽  
Utility Company ◽  
Net Metering ◽  
Cost Of Energy

The utilization of renewable and eco-friendly source of energy which is also referred as “Alternative Energy” is now being recognized around the world, particularly the Solar Energy. The study proposes a grid-tied photovoltaic system with net-metering that generates electricity that is linked in the electrical grid, where in excess power is sold to the utility company. The objective is to improve the cost of energy consumption of Don Honorio Ventura State University Main Campus by designing and assessing Electrical Power System that lessens the dependency on the Distribution Utility (DU). The design of the system used with respect to the roofing area per building is (3,464) 300 Watts polycrystalline PV panels, (2) uni-directional or (1) bi-directional meter for monitoring the import and export energy, and 30kW-100kW inverter to convert DC (direct current) to AC (alternating current).The computation of the savings was based on the total kWh used per month with the system installed and includes the excess or export energy that is generated from the PV solar panels. Through the assessment of the proposed system, it will surely help Don Honorio Ventura State University (DHVSU) Main Campus to save monthly electric bill and lessen the dependency of the University to the utility grid. Since DHVSU’s building are secondary metered by the Distribution Utility, there is a need to install separate PV System set-up tp meet the individual electrical requirement. The PV system will be installed via On-Grid Connection to the DU subject to the Net Metering rules and guidelines as stated by the Renewable Energy Act of 2008.

scholarly journals POWER QUALITY ANALYSIS BY THE RIPPLE TECHNIQUE

2017 ◽  
Vol 2 (4) ◽  
pp. 227 ◽  
Author(s):  
Amam Hossain Bagdadee
Keyword(s):  
Power System ◽  
Power Quality ◽  
Electrical Power ◽  
Quality Monitoring ◽  
Quality Analysis ◽  
Electrical Power System ◽  
Power Quality Monitoring ◽  
Power Quality Analysis ◽  
Institute Of Technology

Characteristics of Power quality has been with us since the inception of the electrical Power system. However, the topic of power quality has attracted particular attention in recent years due to the increase of electronically controlled. Power quality problems caused disruptions to electrical or electronic equipment and the resulting consequences are very expensive. Ripple techniques will be studied in this paper for analysing power quality monitoring. In the case study based on the measurement of the site of the Asian Institute of Technology (AIT) and it was examined using the proposed ripple technique.

scholarly journals Performance analysis of grid-tied photovoltaic system under varying weather condition and load

2021 ◽  
Vol 11 (1) ◽  
pp. 94
Author(s):  
Abayomi A. Adebiyi ◽  
Ian J. Lazarus ◽  
Akshay K. Saha ◽  
Evans E. Ojo
Keyword(s):  
Dynamic Performance ◽  
Weather Condition ◽  
Weather Conditions ◽  
Maximum Power ◽  
Photovoltaic System ◽  
Solar Irradiation ◽  
Variable Load ◽  
Distribution Grid ◽  
Pv System ◽  
The Impact

Model and simulation of the impact of the distribution grid-tied photovoltaic (PV) system feeding a variable load with its control system have been investigated in this study. Incremental Conductance (IncCond) algorithm based on maximum power point tracking (MPPT) was implemented for the PV system to extract maximum power under different weather conditions when solar irradiation varies between 250W/m2 and 1000W/m2. The proposed system is modelled and simulated with MATLAB/Simulink tools. Under different weather conditions, the dynamic performance of the PV system is evaluated. The results obtained show the efficacy of the proposed MPPT method in response to rapid daytime weather variations. The results also show that the surplus power generated is injected into the grid when the injected power from the PV system is higher than the load demand; otherwise, the grid supplies the load.

scholarly journals An Experimental Study on Transient Response of a Hybrid Thermoelectric–Photovoltaic System with Beam Splitter

Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 8129
Author(s):  
Sajjad Mahmoudinezhad ◽  
Petru Adrian Cotfas ◽  
Daniel Tudor Cotfas ◽  
Enok Johannes Haahr Skjølstrup ◽  
Kjeld Pedersen ◽  
...  
Keyword(s):  
Hybrid System ◽  
Beam Splitter ◽  
Electrical Power ◽  
Weather Conditions ◽  
Spectrum Management ◽  
Photovoltaic System ◽  
Pv System ◽  
Cloudy Weather ◽  
Pv Cell ◽  
The Impact

In the current study, the electrical responses of a thermoelectric (TE) module and a photovoltaic (PV) cell are investigated in three different systems, namely, a PV-only system, TE-only system, and hybrid TE-PV system with a beam splitter (TE-PV-BS), under variable solar irradiations demonstrating partly cloudy weather conditions. To enhance the deployment of solar energy, a predesigned beam splitter combined with the amorphous silicon TE and PV system is used in the experiments. The impact of the spectral beam splitting technology on the conversion performance of the TE module and PV cell in the hybrid system is studied and compared to the performance of the TE-only and PV-only systems. The electrical output parameters of the TE module and PV cell are obtained for the studied systems, and they are discussed in detail. The results of this work show that the power generated by the PV cell has a stepwise fluctuation similar to the variation in the concentrated solar radiation. Affected by its heat capacity, the power variation is monotonous with the TE module. The results moreover indicate that there is more power generated by the PV cell in the TE-PV-BS hybrid system than by the PV-only system. In comparison, the TE-only system produces more power than the TE module in the hybrid system. Furthermore, the TE-PV-BS hybrid system generates higher and more stable electrical power than the TE-only and PV-only systems, showing a significant advantage of the spectrum management concept.

scholarly journals Optical Voltage Transformer Based on FBG-PZT for Power Quality Measurement

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2699
Author(s):  
Marceli N. Gonçalves ◽  
Marcelo M. Werneck
Keyword(s):  
Power System ◽  
Power Quality ◽  
Distribution System ◽  
Electrical Power ◽  
Quality Measurement ◽  
Pockels Effect ◽  
Electrical Power System ◽  
Voltage Transformer ◽  
Technical Literature ◽  
Distribution Lines

Optical Current Transformers (OCTs) and Optical Voltage Transformers (OVTs) are an alternative to the conventional transformers for protection and metering purposes with a much smaller footprint and weight. Their advantages were widely discussed in scientific and technical literature and commercial applications based on the well-known Faraday and Pockels effect. However, the literature is still scarce in studies evaluating the use of optical transformers for power quality purposes, an important issue of power system designed to analyze the various phenomena that cause power quality disturbances. In this paper, we constructed a temperature-independent prototype of an optical voltage transformer based on fiber Bragg grating (FBG) and piezoelectric ceramics (PZT), adequate to be used in field surveys at 13.8 kV distribution lines. The OVT was tested under several disturbances defined in IEEE standards that can occur in the electrical power system, especially short-duration voltage variations such as SAG, SWELL, and INTERRUPTION. The results demonstrated that the proposed OVT presents a dynamic response capable of satisfactorily measuring such disturbances and that it can be used as a power quality monitor for a 13.8 kV distribution system. Test on the proposed system concluded that it was capable to reproduce up to the 41st harmonic without significative distortion and impulsive surges up to 2.5 kHz. As an advantage, when compared with conventional systems to monitor power quality, the prototype can be remote-monitored, and therefore, be installed at strategic locations on distribution lines to be monitored kilometers away, without the need to be electrically powered.

An Intelligent Hybrid Model for Bus Load Forecasting in Electrical Short-Term Operation Tasks

2012 ◽  
pp. 540-562
Author(s):  
Ricardo Menezes Salgado ◽  
Takaaki Ohishi ◽  
Rosangela Ballini
Keyword(s):  
Power System ◽  
Hybrid Model ◽  
Electrical Power ◽  
Load Forecasting ◽  
Electrical Power System ◽  
Term Operation ◽  
Operating Load ◽  
Conventional Models ◽  
Safe Operating

The main objective of this chapter is to present a hybrid model for bus load forecasting. This approach represents an essential tool for the operation of the electrical power system and the hybrid model combines a bus clustering process and a load forecasting model. As a case study, the model was applied to the real Brazilian electrical system, and the results revealed a performance similar to that of conventional models for bus load forecasting, but about 14 times faster. The results are compatible with the safe operating load levels for the Brazilian electrical power system and have proved to be adequate for use in real operation tasks.

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