International Journal of Applied Power Engineering (IJAPE)
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.
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Implementation and study of fuzzy based KY boost converter for electric vehicle charging
Jalla Upendar;
Sangem Ravi Kumar;
Sapavath Sreenu;
Bogimi Sirisha
International Journal of Applied Power Engineering (IJAPE) Vol 11, No 1: March 2022
Publisher : Institute of Advanced Engineering and Science
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DOI: 10.11591/ijape.v11.i1.pp98-108
Elecetric vehicle batteries require direct current (DC) current for charging; hence the circuit alternating current (AC) is converted to DC by a battery charger. Battery charger mostly consists of a rectifier and DC-DC converter with a controller built in to serve as a protective circuit. A harmonic source load is a type of electric car charger. During the AC-DC change over method, harmonic current is introduced into the power system, affecting power quality. In this study, a charging station consisting of buck boost and a charging station consisting a KY Boost converter were simulated. To maintain output voltage of DC-DC converters constant controller is used, the controller is either PI or fuzzy logic controller. So, four models are developed and simulated which are buck-boost converter controlled by proportional-integral (PI)-controller, KY-boost converter controlled by proportional integral-controller, buck boost converter controller fuzzy logic controller and KY boost-converter controlled by fuzzy logic controller. The total harmonic distortion (THD) of the four models is compared.
Effect of the bus voltage level on the power system design for microsatellites
Mohammed Bekhti;
Mohammed Beldjehem;
Arezki Faiza
International Journal of Applied Power Engineering (IJAPE) Vol 11, No 1: March 2022
Publisher : Institute of Advanced Engineering and Science
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DOI: 10.11591/ijape.v11.i1.pp91-97
Each time there is a need for a satellite mission analysis, engineers need to coordinate together the choice of one technology with regard to the other (i.e. solar cells technology, transistors, microcontrollers, and batteries). The process of selecting one technology to another or a component to another is called ‘trade off’. This concept is a hard and situational decision that involves diminishing one quality, of a system or a design in return for gains in other aspects such as weight, performance, speed and so on. The present paper will focus essentially on the use of the 28 V unregulated bus voltage because early satellites, all used, a 14 V unregulated bus voltage. The paper will also show trade-offs made when using the 28 V unregulated bus voltage with different topologies.
Analysis of switched impedance source/quasi-impedance source DC-DC converters for photovoltaic system
Sapavath Sreenu;
Jalla Upendar;
Bogimi Sirisha
International Journal of Applied Power Engineering (IJAPE) Vol 11, No 1: March 2022
Publisher : Institute of Advanced Engineering and Science
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DOI: 10.11591/ijape.v11.i1.pp14-24
This paper proposes the switched impedance source converter (SZSC) or switched quasi impedance source DC-DC converter (S-qZSC) based photovoltaic (PV) grid-connected systems. To increase the voltage from low level to high level, all PV grid-connected systems need step-up DC-DC converters. This step-up factor can be increased by connecting the terminals of a traditional quasi impedance source DC-DC converter with an additional diode and a switch. In this proposed converter, the capacitor not only serves as a filter. It is, however, bound in series to the charging loops of the inductors. On the one hand, saturated inductors can trigger instability, which can be avoided. When used for dc-ac conversion, however, the modulation index of the backend H-bridge can be set to a wider range. As compared to existing Z-source-based systems, a shorter duty period results in a higher boost factor.
Power quality improvement and analysis of interconnected bus system with PMU using VSM-STATCOM
Preeti Nitin Kabra;
Sudha Rani Donepudi
International Journal of Applied Power Engineering (IJAPE) Vol 11, No 1: March 2022
Publisher : Institute of Advanced Engineering and Science
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DOI: 10.11591/ijape.v11.i1.pp52-61
The traditional static synchronous compensator (STATCOM) present in the power grid to compensate instability problem will not be not able to maintain stability of the system due to fluctuations in point of common coupling (PCC) voltage and frequency variation that may result in poor synchronization of the grid. The solution for this is the improvement in conventional STATCOM to virtual synchronous machine–static synchronous compensator (VSM-STATCOM). In this paper an interconnected IEEE-14 bus system is considered for analysis with VSM-STATCOM for improvement in voltage profile on weakest bus of the system. In order to find the weakest bus, load flow analysis is carried out on the bus system using Newton Rapson method. A VSM-STATCOM is connected at that weakest bus in synchronization to the grid injecting reactive power. For the analysis a fault is introduced on any of the line and voltage profile of the weakest bus is observed with and without VSM-STATCOM. The VSM-STATCOM is also compared to a conventional control STATCOM which has no inertia module. A comparative analysis is carrier out with parameters of voltage magnitude and frequency of the weak bus taken into consideration. The magnitude and frequency parameters of conventional STATCOM and VSM-STATCOM are measured using phasor measurement units. The model is designed using MATLAB Simulink power systems library block sets with graphical user interface (GUI) environment.
Demand response planning in capacity market using microgrid
Mohammad Khadem;
Mahdi Karami
International Journal of Applied Power Engineering (IJAPE) Vol 11, No 1: March 2022
Publisher : Institute of Advanced Engineering and Science
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DOI: 10.11591/ijape.v11.i1.pp7-13
Planning of the demand response has received special attention due to the cost of transmission lines development and shortage of energy resources beside the growth of demand. This research work is focused on the role of microgrid (MG) as an alternative solution for transmission system development and proposed a method for modeling of MGs in the capacity market. The results show that using of MGs leads to reduce the development costs of transmission system. Moreover, MGs cause a slight increase in the profitability of selling capacity to the consumers. These outcomes prove that continuing to grow the number and capacity of MGs in each area ultimately eliminate the inquiry of transmission network development and minimize the cost of capacity market.
Fast band power measurement technique in Wi-Fi systems using spectrum analyzer
Bommalapati Malleswari;
Mohan Kumar Sesharangaiah;
Bhaskara Rao Sanka
International Journal of Applied Power Engineering (IJAPE) Vol 11, No 1: March 2022
Publisher : Institute of Advanced Engineering and Science
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DOI: 10.11591/ijape.v11.i1.pp1-6
Fast band power measurement technique used for measuring band power in wireless fidelity (Wi-Fi) devices. The difficulty during testing the band power is burst mode transmission takes longer time to measure. A test jig or specialized tool required is costly, which allows continuous mode of transmission for power measurement. The delivered average power by a Wi-Fi device depends upon the data rate which can also vary during time. The procedure proposed hereby developed using a spectrum analyzer to measure band power in the burst mode, in order to ensure repeatable results and optimized to enable fast measurements at low cost, less time and above 90% accurate.
A low-cost business-oriented seaport energy effective management platform
Asimina Dimara;
Dimitrios Triantafyllidis;
Stelios Krinidis;
Nikolaos Ntaras;
Olga Koutsogianni;
George Tsoukos;
Athanasios Giannopoulos;
Konstantinos Kitsikoudis;
Dimosthenis Ioannidis;
Maria Zarkadoula;
Apostolos Bizakis;
Stavros Antypas;
Goumas Georgios;
Dimitrios Tzovaras
International Journal of Applied Power Engineering (IJAPE) Vol 11, No 1: March 2022
Publisher : Institute of Advanced Engineering and Science
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DOI: 10.11591/ijape.v11.i1.pp62-90
Many seaports worldwide attempt to gain energy efficiency towards reducing their energy costs while mitigating climate change and environmental effects. In this pa- per, a low-cost business-oriented seaport energy effective management (PERFFECT) platform is introduced. PERFFECT intends to gain knowledge on fundamental port operational and business processes and evaluate them against energy efficiency and environmental footprint. Exploiting all the proposed PERFFECT applications like monitoring, evaluation, forecasting, and optimization, the energy efficiency of the op- erational infrastructure of the port’s is achieved. Port’s energy balance is estimated and used to decide the ports optimal energy usage. Moreover, the traffic volume produced by the gate check is simulated and utilized for further actions. These actions include energy savings and emission reduction recommendations. Finally, the proposed platform is evaluated against real-life data, while the experimental results present the out- come and efficiency of the system. The suggested system results in up to 82.82% light energy savings after a specific suggested action and up to 33% reduction of vehicle emissions, respectively.
Comprehensive analysis and design of furnace oil-based power station using ETAP
Raheel Muzzammel;
Rabia Arshad
International Journal of Applied Power Engineering (IJAPE) Vol 11, No 1: March 2022
Publisher : Institute of Advanced Engineering and Science
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DOI: 10.11591/ijape.v11.i1.pp33-51
High standards of living are linked with the availability of energy. Therefore, there is always a requirement to modify existing power generating systems or to add new systems to fulfill the increasing demands of energy. It is becoming a core issue in the South Asian region so that at least current standards of living could be maintained by controlling growing energy rates and shortening the availability of conventional sources. Furnace oil is a residue obtained in the process of distillation of crude oil in the petroleum industry. This furnace oil is applicable for power generation plants allied with the petroleum industry so that residue of oil refineries could be utilized. In this research, a furnace oil-based power plant is designed in electrical transient and analysis program (ETAP) software. Moreover, steady-state and transient analysis of the proposed design of the power plant are conducted to increase practical viability of model. Load flow is analyzed to depict the performance of the power plant model under load conditions. This model is further tested under the motor starting event to analyze the current drawn by the motor. This event helps to determine the permissible values of protective equipment installed in power plants. In the last, economic dispatch analysis is conducted to find the relative minima of generation cost of furnace oil-based power plant with respect to coal and hydel generation
Analysis of chattering in step down converter via sliding mode reaching law
Siddesh Kondapur Basavarajan;
Shivarudraswamy Rudrappa
International Journal of Applied Power Engineering (IJAPE) Vol 11, No 1: March 2022
Publisher : Institute of Advanced Engineering and Science
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DOI: 10.11591/ijape.v11.i1.pp25-32
The reaching law approach is broadly used for chattering repression, minimization of steady state error and reaching pace kept minimsed. The reasons of chattering, in this paper proposes sliding mode reaching law. In one hand, they assurance the scheme arrives at the sliding face swiftly and stay on it, in another way they deteriorate the chattering inefficiently, even matchless certainties and disturbances. This proposed reaching law gives uniqueness of the response. The reaching law is compared with Gao’s reaching law. Sliding mode reaching laws gives the efficacy in reducing the chattering of the variable structure control (VSC). This reaching law also reduces the losses in the switching diplomacy. In turns efficiency of the step-down converter increases. Simulation results give significant decrease of chattering and extremely fewer receptive in supply and load variation.