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International Journal of Applied Power Engineering (IJAPE)

IJAPE
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Published by Institute of Advanced Engineering and Science

ISSN : 22528792 EISSN : 27222624 DOI : -

Core Subject : Engineering,

Electrical & Electronics Engineering

International Journal of Applied Power Engineering (IJAPE) focuses on the applied works in the areas of power generation, transmission and distribution, sustainable energy, applications of power control in large power systems, etc. The main objective of IJAPE is to bring out the latest practices in research in the above mentioned areas for efficient and cost effective operations of power systems. The journal covers, but not limited to, the following scope: electric power generation, transmission and distribution, energy conversion, electrical machinery, sustainable energy, insulation, solar energy, high-power semiconductors, power quality, power economic, FACTS, renewable energy, electromagnetic compatibility, electrical engineering materials, high voltage insulation technologies, high voltage apparatuses, lightning, protection system, power system analysis, SCADA, and electrical measurements.

Arjuna Subject : -

Articles 571 Documents

20 21 22 23 24

CONTROL SHUNT ACTIVE FILTER BASED ON DQ FRAME USING CURRENT MODEL PREDICTION Chí, Nguy?n V?n
International Journal of Applied Power Engineering (IJAPE) Vol 10
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v10.i1.pp%p

The nonlinear loads present more in the power systems in the practice today by developing of electronic technology and using the small distributed power sources (solar power, wind power etc.?), this causes the increasing the high frequency switch devices etc. in the power network. Nonlinear loads cause non-sinusoidal currents and voltages with harmonic components, increasing the reactive power, overload of power lines and electrical devices, low power factor and affecting badly to the networks. Shunt active filters (SAF) with current controlled voltage source inverters (CCVSI) are used effectively to reduce the harmonics and to balance the phases sinusoidal source currents by generating the currents to compensate the harmonic currents caused by the nonlinear loads. In this paper we suppose a control strategy to generate the compensation currents of SAF by using the current model predictive engineering. This method is better than the control strategy using PI controller in term of transient time. The desired compensation currents can track exactly the reference compensation currents on the dq frame. The simulation results implemented on the nonlinear load, a full bridge rectifier and 3 phase unbalance load, show that the transient period decrease from 0.1s to 0.02s in comparing with PI controller. The experimental results proof that the THD of source currents decrease from 24.8% to 5.4% when using the proposed method.

Performance evaluation and load demand management of grid connected hybrid wind-solar-battery system K. M. Venkatachalam; V. Saravanan
International Journal of Applied Power Engineering (IJAPE) Vol 9, No 3: December 2020
Publisher : Institute of Advanced Engineering and Science

In this paper, Performance of the grid connected hybrid wind-solar energy system and load demand response of the battery integrated single phase voltage source inverter is presented. The wind energy conversion system is generating AC power and the solar PV system is generating DC power and both are integrating with battery in the common DC bus. The output voltage of the wind and solar system are controlling using dc-dc converters and it achieved more than the battery voltage. P&O algorithm used MPPT based voltage controller is driving the dc-dc converter with a reference voltage value of the battery. The single-phase full-bridge converter is converting DC to AC power and feeding into the standalone AC loads and distribution grid with IEEE 519 standard. The bi-directional converter is controlling the directions of power flow and it operates two modes namely inverter mode and rectifier mode based on a voltage level of the battery. In this bi-directional converter is controlling by the PI controller with the reference value of the DC bus voltage and load current. The power quality and demandresponse of the inverter is observing at various types of load conditions in standalone mode and grid-connected mode using experimental results.

INVESTIGATION OF DIFFERENT DESIGNS OF ARTIFICIAL NEURAL NETWORK FOR MAXIMUM POWER POINT TRACKING OF GRID CONNECTED PV SYSTEM ALI, Mahmoud N.
International Journal of Applied Power Engineering (IJAPE) Vol 10
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v10.i1.pp%p

This paper aims at increasing the PV system efficiency through the design of the Artificial Neural Network (ANN) for maximum power point tracking (MPPT) of gridconnected PV systems. The main effective factors for efficiency increase is to design an accurate tracker of maximum power point. Some conventional methods, suchas the perturb-and-observe (P&O) and the incremental conductance (IC), are widelyused for MPPT. The artificial intelligence can substitute these conventional methodsto produce a precise MPPT system. The artificial neural network (ANN) is investigated, in this paper, to compare between different designs to maximize the output dcpower of PV array. One hidden layer with different number of neurons, two hiddenlayers and a modified criterion for improving the learning process are the proposeddesigns of ANN for MPPT. The IC method is used as a base case to be compared forthe clarification of the improvement achieved using the ANN as an MPP tracker.

RESPONSIVE LOAD MODEL INTEGRATION WITH SCUC TO DESIGN TIME-OF-USE PROGRAM Samimi, Abouzar
International Journal of Applied Power Engineering (IJAPE) Vol 10
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v10.i1.pp%p

Appropriate designing and accurate pricing of demand response (DR) programs are two important issues being encountered by system operator. Assigning proper values could impact on creating more incentives and raising customers? participation level as well as improving technical and economical characteristics of the power system.Here, time of use (TOU) as a prevalent program is linearly modeled based on concepts of self and cross price elasticities of demand. In order to design TOU program, a joint optimization over the operation cost and customers? benefit is proposed based on security-constrained unit commitment problem (SCUC). Supplementary constraints are provided at each load point with daily energy consumption requirement and DR limitation. GAMS software is used to implement the proposed method in which CPLEX solver finds the optimal solution.IEEE 24-bus test system is employed to study different features of the proposed method. By varying DR potential in the system, TOU rates are determined and then their impacts on customers' electricity bill, operation cost, and reserve cost as well as load profile of the system are investigated. In addition, the effect of network congestion as a technical limitation is studied. The results show the effectiveness and applicability of the proposed method.

Induction motor drive based on direct torque controlled used multi-pulse AC-DC rectifier Rohollah Abdollahi
International Journal of Applied Power Engineering (IJAPE) Vol 10, No 2: June 2021
Publisher : Institute of Advanced Engineering and Science

This paper presents the direct torque-controlled induction motor drives (DTCIMDs) based on a retrofit 44-pulse rectifier (44PR). A 22-phase polygon autotransformer (PA) is designed to supply the rectifiers. The above structure improves the power quality standards in the power grid and complies with the requirements of the IEEE-519 standard for different loads. Besides, a power factor close to one is obtained for a wide range of DTCIMD performance. The results show that the total harmonic distortion (THD) of the input current under variable loads for 44PR is less than 3%.

ANALYSIS ON MAXIMUM POWER POINT TRACKING TECHNIQUES FOR PHOTOVOLTAIC SYSTEMS Akda, Nona
International Journal of Applied Power Engineering (IJAPE) Vol 10
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v10.i1.pp%p

Renewable energy Solaris become important role in electric power generation. There are several renewable resources used for electric power generation. such as wind energy, solar energy etc. Solar Energy is best for electric power generation. since the solar energy is directly changed into electrical energy by solar photovoltaic systems. When many PV systems are connected in parallel and series combinations we develop solar PV array, for obtaining higher power output . There are many techniques for maximizing power in solar systems., maximum power point (MPP) tracking. Later on in this analysis, we discuss about two MPP tracking techniques are deliberate and compared. The technique is based the incremental conductance and ANFIS method

Technical analysis of a hybrid solid oxide fuel cell/gas turbine cycle Leal, ElisÃ¢ngela Martins; Bortolaia, LuÃs AntÃ´nio; Junior, Amauri Menezes Leal
International Journal of Applied Power Engineering (IJAPE) Vol 10, No 1: March 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v10.i1.pp%p

This paper shows a technical analysis of a direct internal reforming solid oxide fuel cell (DIR-SOFC) and a gas turbine (GT) system. The technical analysis consists of an energy and exergy analysis of the system. Equilibrium calculations are made to find the ranges of inlet steam/fuel ratio and the operational current density of the fuel cell. After that, a hybrid system consists of a DIR-SOFC and a GT is evaluated using a computer simulation at the design point. The results showed that the fuel cell is the main power producer system, the high energy efficiency (around 62%) and exergy efficiency (around 58%) is achieved by the hybrid cycle compared to fuel cell efficiency (about 40%) and the gas turbine (around 38%). The power ratio of the fuel cell / gas turbine was 1.50. An analysis varying the fuel cell current density and the gas turbine pressure ratio was performed showing that the fuel cell power production decreases with increasing current density when the gas turbine becomes the main power producing equipment. However, the system energy efficiency decreases with the reduction of power produced by the fuel cell. Finally, it is shown that the computer simulation of the hybrid system may represent a quick and economic feasible way to investigate it.

New control scheme for synchronization of a photovoltaic system to a three-phase grid to attenuate the harmonics of currents caused by distorted grid voltage Ismail Boukhechem; Ahcen Boukadoum; Lahcene Boukelkoul; Houssam Eddine Medouce; Rima Lebied
International Journal of Applied Power Engineering (IJAPE) Vol 9, No 3: December 2020
Publisher : Institute of Advanced Engineering and Science

This study presents a new scheme of control for the synchronization ofa photovoltaic (PV) system with a three-phase grid without a line sensor.The approach of the proposed synchronization technique is developed to extract the maximum of PV energy and inject it in the network for various conditions of voltage, and to ensure that the currents injected into the three-phase network emulate the wished sinusoidal forms even when the mains grid voltage is no longer ideal. This paper introduces a new technique of synchronization and elimination of the disturbances created by the distorted tension based on the direct power control without voltage sensors (VF_DPC) with the help of second-order generalized integrator (SOGI) associated with a self-tuning filter (STF) to extract the fundamental virtual flux. The simulation of the proposed system is realized in MATLAB/Simulink environment.

A NOVEL SOLAR DRYER FOR DRYING OF MAIZE SHARMA, KIRTIKA; kothari, Surendra; Panwar, Narayan lal
International Journal of Applied Power Engineering (IJAPE) Vol 10
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v10.i1.pp%p

This research paper deals with the design and development of a cylindrical solar drying system feasible for drying of maize cobs. Drying is a highly energy intensive post-harvest process which consumes lots of electricity when conventional energy is used. Thus this research aims to substitute the energy required for drying by non-conventional means. Solar dryers are efficient and economic means of uniform drying agricultural food products which maintains the product quality along with decreasing drying and marketing time and also burden on farmer?s pocket for drying. Maize is considered for the research work here as it is a most important staple crop of India and has largest source of calorie among food grains. The demand for dried maize grains is increasing along with its nutritionally enriched value added products indicating the growth potential of maize industry in developing countries. An effect has been done to improve the dryer so that the drying process can be made more efficient and effective. The developed dryer proved to be technically and economically feasible with a high percentage of internal rate of return ie; 66 per cent. The results of solar assisted dryer when compared with that of open sun drying were better in terms of quality and drying time with a total saving of 7 hours.

An investigation of wind resources in the Adrar Region (Southern Algeria) Benmedjahed, Miloud; Maouedj, Rachid; Mouhadjer, Samir; Dahbi, Abdeldjalil; Saba, Djamel; Touahri, Tahar
International Journal of Applied Power Engineering (IJAPE) Vol 10, No 2: June 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v10.i2.pp%p

The aim of this article is to objectively analyze the wind atlas map of the Adrar region at 10 m from the ground, in order to classify these speeds according to the PNL (Northwest Pacific Laboratory) classification, then develop a separation velocity map in the area studied,Â finally, We finished this work with an application on the Adrar locations, to estimate the annual, seasonal, and monthly energy produced by Whisper200 wind turbines, using the Rayleigh distribution, in order to process the wind data collected every 3 hours from 01/01/1961 to 12/31/ 2018. The northeast zone of the studied region belongs to the fourth classes of classification PNL, In other words, it is a region suitable for wind applications (by wind farm or isolated wind turbine), The surface of this area equal to 16587 kmÂ², in this area we locate two sites Kaberten and Aougroute, while the second PNL class is divided into seven zones; this wind speed class is favorable for the installation of isolated wind turbines or hybrid systems. The main cities are located in these regions such as Adrar, Timimoune, Regagne, Aoulef, Bordj Baji Mokthar and Timaiaouine.

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