126 research outputs found
Electric vehicles and the future of energy efficient transportation Advances in mechatronics and mechanical engineering (AMME) book series./ Umashankar Subramaniam, Sheldon S. Williamson, Mohan Krishna S., Febin Daya J.L.
No full text"Premier Reference Source"--Taken from front coverIncludes bibliographical references and index."This book creates awareness and enlighten the readers about the growth and adoption of electric vehicles for the purpose of sustainable transportation offering critical analysis in terms of the economics, technology and environment perspectives"--Chapter 1. Battery management systems (BMS) for EV: electric vehicles and the future of energy-efficient transportation -- Chapter 2. Design and development of bidirectional DC-DC converters using battery/supercapacitor for electric vehicle applications -- Chapter 3. Error-state extended kalman filter-based sensor fusion for optimized drive train regulation of an autonomous PHEV -- Chapter 4. Integration strategies, challenges, and merits of renewable resources in electric vehicles -- Chapter 5. Mathematical modeling of DC-DC converters and Li ion battery using MATLAB/simulink -- Chapter 6. Microgrid-based sustainable e-bike charging station -- Chapter 7. Power converters for hybrid electric vehicles -- Chapter 8. Real-time optimization of regenerative braking system in electric vehicles -- Chapter 9. Solar powered electric vehicle through wireless power transfer -- Chapter 10. Transformation of the Turkish automotive sector: the electric vehicle challenge.1 online resource (xv, 293 pages)
Design and development of non-isolated modified SEPIC DC-DC converter topology for high-step-up applications: Investigation and hardware implementation
No full textA new non-isolated modified SEPIC front-end dc-dc converter for the low power system is proposed in this paper, and this converter is the next level of the traditional SEPIC converter with additional devices, such as two diodes and splitting of the output capacitor into two equal parts. The circuit topology proposed in this paper is formulated by combining the boost structure with the traditional SEPIC converter. Therefore, the proposed converter has the benefit of the SEPIC converter, such as continuous input current. The proposed circuit structure also improves the features, such as high voltage gain and high conversion efficiency. The converter comprises one MOSFET switch, one coupled inductor, three diodes, and two capacitors, including the output capacitor. The converter effectively recovers the leakage energy of the coupled inductor through the passive clamp circuit. The operation of the proposed converter is explained in continuous conduction mode (CCM) and discontinuous conduction mode (DCM). The required voltage gain of the converter can be acquired by adjusting the coupled inductor turn’s ratio along with the additional devices at less duty cycle of the switch. The simulation of the proposed converter under CCM is carried out, and an experimental prototype of 100 W, 25 V/200 V is made, and the experimental outcomes are presented to validate the theoretical discussions of the proposed converter. The operating performance of the proposed converter is compared with the converters discussed in the literature. The proposed converter can be extended by connecting voltage multiplier (VM) cell circuits to get the ultra-high voltage gain
Multi‐Quantum Well‐Based Solar Cell
No full textRecent advancement in solar cell technology, single-junction Gallium Arsenide (GaAs) solar cells has fascinated many researchers with their efficiency limits. The sudden rise in the advancement in photovoltaic to make the solar cell more effective and efficient have made researchers to cross the boundaries of conventional single material based solar cells. Using Multi Quantum Wells (MQWs) over conventional solar cells helps in reducing losses and enhances the conversion efficiency of the device. In this chapter, four different material combinations are compared to develop quantum wells with single solar cell architecture. Using 25 layers of GaSb/GaAs, InGaP/GaAs, InP/GaAs, and AlGaAs/GaAs, the critical cell parameters are observed and compared
Smart grid and power quality issues
No full textThe future electricity grid requires smart features like flexible, accessible, reliable, and quality power supply. These features are effectively offered by the smart grid system. The components of the smart grid include renewable sources and controllable loads. Due to the controllable feature of the load, various changes occur with respect to the voltage values and harmonics. Therefore, power quality (PQ) issues with respect to smart grids become a major topic is explained. This chapter includes the PQ issues and its effects in AC microgrids and DC microgrids. The PQ concerns with respect to voltage variations, transients, and harmonics are discussed. The PQ issues due to the demand side management schemes are discussed. Also, the future trends in introducing new PQ indices are discussed in this chapter
Digital Capability as an Enabler of Circular Economy in Saudi Arabia's Manufacturing Sector
No full textCircular Economy (CE) minimizes waste through reduce, reuse, and recycle principles across product lifecycles. Digital technologies like IoT, AI, and big data analytics can significantly enhance CE implementation when integrated into manufacturing operations and decisions. Benefits include resource efficiency, supply chain transparency, predictive maintenance, and circular business models. However, barriers exist like high investment costs and lack of infrastructure. The paper uses mixed methods to explore how digitalization can promote CE practices within Saudi manufacturing. It summarizes the global digitalization trends enabling CE in manufacturing and provides an outlook on Saudi Arabia’s vision 2030 strategy. It also highlights early sustainability initiatives in Saudi manufacturing, key challenges identified via stakeholder engagements, and policy measures needed to incentivize adoption. It concludes that digitalization presents an immense opportunity to advance CE manufacturing in alignment with Saudi’s economic diversification and resilience goals. However, realizing sustainability and competitiveness benefits requires urgent multi-stakeholder collaboration and interdisciplinary perspectives
Single-bit modulator for wireless power transfer system
No full textThis paper proposes a single-bit ADC system based Proportional and Integral (PI) controller to maintain a desired level of power transfer efficiency in Capacitive Power Transfer (CPT) systems. In this paper, a simple single-bit ADC system i.e., SingleBit Modulator (SBM) is considered as an alternative to the commonly used multi-bit ADC systems. Unique features of employing SBM are 1) its ability to convert analog signals into single-bit signals and 2) its easy integrability in digital chips with linear variable differential transformers (LVDTs) such as FPGAs. A SBM based PI (SBMPI) controller is designed to judicially interface with the single-bit output of SBM. The proposed (SBM-PI) controller guarantees less hardware resources, latency and regulates the output voltage to provide the desired power transfer efficiency. The behavior of SBM-PI controller is compared to that of a conventional multi-bit controller, with the results of both controllers being identical. The effectiveness of the proposed controller with SBM is further demonstrated using the experimental prototype of CPT by implementing a SBM-PI controller using 16 MHz ATmega8 microcontroller. The experimental results from a laboratory prototype illustrate that SBM-PI controller successfully regulates the output voltage of CPT to control the power flow
A Demand Side Management Controller Configuration for Interleaved DC‐DC Converters Applicable for Renewable Energy Sources
No full text
A Study Exploring Opportunities to Utilize Wind Charge in Bangladesh
No full textWind charge is produced naturally in space. Knowing the nature of space charge is important for various purposes. If the charge is received for the whole year long by an antenna, then, in this process, the charge can be used as electric power. In the present work, the nature of wind charge in space in the cities of Dhaka and Narayanganj was observed. A net-type antenna was used to receive the wind charge. The results show that the power decreased with the antenna gaps. The output power increased with the antenna’s gross area and the speed of air. The overall output power was increased with humidity. It was shown that wind with a higher distance from the ground carries more electric charge. This research reveals that electric charge is inhomogeneous in wind, and it is collectable as electric power. The nature of the results is similar in both cities, but the output power is larger in Dhaka than in Narayanganj. This alternative power source is environmentally friendly, and it reduces thunder and lighting due to charge being taken from wind. Thus, this creates a more danger-free environment
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