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1دورية أكاديمية
المؤلفون: Mahidur R. Sarker, Azah Mohamed, Ramizi Mohamed
المصدر: Micromachines, Vol 7, Iss 10, p 171 (2016)
مصطلحات موضوعية: energy harvesting, optimization, micro devices, low voltage, controller, Mechanical engineering and machinery, TJ1-1570
الوصف: This paper presents a new method for a vibration-based piezoelectric energy harvesting system using a backtracking search algorithm (BSA)-based proportional-integral (PI) voltage controller. This technique eliminates the exhaustive conventional trial-and-error procedure for obtaining optimized parameter values of proportional gain (Kp), and integral gain (Ki) for PI voltage controllers. The generated estimate values of Kp and Ki are executed in the PI voltage controller that is developed through the BSA optimization technique. In this study, mean absolute error (MAE) is used as an objective function to minimize output error for a piezoelectric energy harvesting system (PEHS). The model for the PEHS is designed and analyzed using the BSA optimization technique. The BSA-based PI voltage controller of the PEHS produces a significant improvement in minimizing the output error of the converter and a robust, regulated pulse-width modulation (PWM) signal to convert a MOSFET switch, with the best response in terms of rise time and settling time under various load conditions.
وصف الملف: electronic resource
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المؤلفون: Azah Mohamed, Ramizi Mohamed, Mahidur R. Sarker
المصدر: Ferroelectrics. 514:123-145
مصطلحات موضوعية: Materials science, 020208 electrical & electronic engineering, Open-loop controller, Proportional control, 02 engineering and technology, Condensed Matter Physics, Trial and error, Electronic, Optical and Magnetic Materials, Search algorithm, Control theory, Voltage controller, 0202 electrical engineering, electronic engineering, information engineering, 020201 artificial intelligence & image processing, Energy harvesting, Low voltage
الوصف: This paper presents a relatively new meta-heuristic optimization technique known as the Lightning Search Algorithm (LSA) for developing an optimal proportional-integral (PI) voltage controller for a piezoelectric energy harvesting system (PEHS) converter. In the conventional PI voltage controller, a trial and error procedure is normally used to obtain optimal values for the proportional gain (Kp), and integral gain (Ki). This procedure is time consuming and does not conduct to suitable solutions. To overcome the exhaustive traditional trial-and-error procedure, the LSA optimization algorithm is proposed for obtaining optimal Kp and Ki values for the PI voltage controller.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::cc531147ee9f0ea61467f399972d0bb9Test
https://doi.org/10.1080/00150193.2017.1359028Test -
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المؤلفون: Mahidur R. Sarker, Azah Mohamed, Ramizi Mohamed
المصدر: Applied Mechanics and Materials. 785:131-135
مصطلحات موضوعية: Engineering, business.industry, Electrical engineering, Hardware_PERFORMANCEANDRELIABILITY, General Medicine, Voltage regulator, Peak inverse voltage, Precision rectifier, Rectifier, Boost converter, Hardware_INTEGRATEDCIRCUITS, Electronic engineering, Metal rectifier, Power semiconductor device, business, Low voltage, Hardware_LOGICDESIGN
الوصف: This paper presents the modeling of a full-wave rectifier circuit based on piezoelectric vibration transducer for energy-harvester system. Piezoelectric vibration crystals are a viable means of harvesting energy for low-power embedded systems e.g. wireless sensor network. Distinct power handling circuits are assessed with the presence of piezoelectric vibration based energy harvesting transducer. Inside the interface circuit, the voltage should be started up when the AC input voltage is very low to supply a regulated DC voltage up to 2V. An active technique is chosen to design an ultra-low power circuit from a piezoelectric vibration transducer. MOSFET bride ac–dc rectifier, energy storage device e.g. capacitor and boost converter with regulator are the common components of the energy harvesting circuits. An integrated promoter ac-dc rectifier circuit and boost converter that accept a maximum input voltage of 0.3V and provide a regulated output voltage of 2V serve as the supply. The MOSFET and thyristor are considered to develop the proposed circuit replacing conventional ac-dc rectifier due to low input voltage at which diode does not work.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::4d6540c9ef1b7f196abafad5203b147aTest
https://doi.org/10.4028/www.scientific.net/amm.785.131Test -
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المؤلفون: Mahidur R. Sarker, Ramizi Mohamed, Azah Mohamed
المصدر: 2016 International Conference on Advances in Electrical, Electronic and Systems Engineering (ICAEES).
مصطلحات موضوعية: 0209 industrial biotechnology, Engineering, business.industry, 020208 electrical & electronic engineering, Electrical engineering, Hardware_PERFORMANCEANDRELIABILITY, 02 engineering and technology, law.invention, Rectifier, Capacitor, 020901 industrial engineering & automation, Transducer, law, Boost converter, Hardware_INTEGRATEDCIRCUITS, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Power semiconductor device, business, Low voltage, Energy harvesting, Voltage
الوصف: This paper presents designing a low voltage energy harvesting interface circuit utilizing piezoelectric vibration transducer (PVT). PVT with energy harvesting interface circuit (EHIC) is considered as an alternative power source to run the low power devices, especially for remote area where power is unavailable. A method (i.e., switch-mode boost converter) has chosen for designing the low-power EHIC for micro devices applications. The PVT has been analyzed with different frequency and the output voltage of PVT is used as an input source to design EHIC. The EHIC consists of non-controlled rectifier, filter, switch-mode open loop boost converter and an energy storage device with capacitor at the output terminal. Finally, the complete EHIC has designed and simulated using Matlab Simulink software.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::cf43b8227ab6e8d94abcec916cd8eba7Test
https://doi.org/10.1109/icaees.2016.7888095Test -
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المؤلفون: Azah Mohamed, Ramizi Mohamed, Mahidur R. Sarker
المصدر: Micromachines
Micromachines, Vol 7, Iss 10, p 171 (2016)
Micromachines; Volume 7; Issue 10; Pages: 171مصطلحات موضوعية: energy harvesting, Engineering, Settling time, lcsh:Mechanical engineering and machinery, Proportional control, 02 engineering and technology, micro devices, Article, Voltage controller, Control theory, 0202 electrical engineering, electronic engineering, information engineering, lcsh:TJ1-1570, low voltage, Electrical and Electronic Engineering, controller, business.industry, Mechanical Engineering, 020208 electrical & electronic engineering, 021001 nanoscience & nanotechnology, optimization, Control and Systems Engineering, Rise time, 0210 nano-technology, business, Low voltage, Pulse-width modulation, Voltage
الوصف: This paper presents a new method for a vibration-based piezoelectric energy harvesting system using a backtracking search algorithm (BSA)-based proportional-integral (PI) voltage controller. This technique eliminates the exhaustive conventional trial-and-error procedure for obtaining optimized parameter values of proportional gain (Kp), and integral gain (Ki) for PI voltage controllers. The generated estimate values of Kp and Ki are executed in the PI voltage controller that is developed through the BSA optimization technique. In this study, mean absolute error (MAE) is used as an objective function to minimize output error for a piezoelectric energy harvesting system (PEHS). The model for the PEHS is designed and analyzed using the BSA optimization technique. The BSA-based PI voltage controller of the PEHS produces a significant improvement in minimizing the output error of the converter and a robust, regulated pulse-width modulation (PWM) signal to convert a MOSFET switch, with the best response in terms of rise time and settling time under various load conditions.
وصف الملف: application/pdf
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdec6ccc6937266e2915f257dcd05130Test
https://doi.org/10.3390/mi7100171Test -
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المصدر: 2011 IEEE Student Conference on Research and Development.
مصطلحات موضوعية: Engineering, business.industry, Electrical engineering, Hardware_PERFORMANCEANDRELIABILITY, Peak inverse voltage, Energy storage, law.invention, Rectifier, Capacitor, law, Diode bridge, Hardware_INTEGRATEDCIRCUITS, Electronic engineering, business, Energy harvesting, Low voltage, Voltage
الوصف: This paper presents a designing of a low voltage energy harvesting circuits for generating rectified voltage into storage devices using vibrating piezoelectric element. A technique (i.e., DC-DC Step-Down converter) has chosen for designing the low-power circuit with low voltage energy. The proposed method consumes very little power, and is especially suitable for the environments, where ambient harvested power is very low. The energy harvesting circuit consists of diode bridge ac-dc rectifier and an energy storage device with an output capacitor, an electrochemical battery, and a switch-mode dc-dc converter that control the energy flow into the battery. This paper will study results these important issues regarding the efficiencies of the energy harvesting circuits considering the storage device low voltage. For the piezoelectric element model with ac-dc rectifier, storage device and load verified by PSPICE simulation. The results show piezoelectric element model with ac-dc rectifier of 180mV, and load higher efficiency of 85%. Finally, dc-dc (Step-down) converter generates 20mV.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::f5a759443d65a299d48b626d38c899d6Test
https://doi.org/10.1109/scored.2011.6148762Test -
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المؤلفون: Shabiul Islam, Masuri Othman, Sawal Hamid Md Ali, Mahidur R. Sarker
المصدر: Journal of Physics: Conference Series. 431:012025
مصطلحات موضوعية: History, Engineering, business.industry, Voltage divider, Electrical engineering, Hardware_PERFORMANCEANDRELIABILITY, Voltage regulator, Voltage optimisation, Energy storage, Computer Science Applications, Education, Constant power circuit, Hardware_GENERAL, Dropout voltage, Hardware_INTEGRATEDCIRCUITS, Electronic engineering, Voltage regulation, business, Low voltage
الوصف: This paper presents a designing a battery-less piezoelectric based energy harvesting interface circuits with 300mV step-up voltage. A technique (i.e., DC-DC Step-Up converter) has chosen for designing the startup voltage with low voltage energy (i.e., 300mV). The proposed method consumes very little power, and is especially suitable for the ambient environmental source, where energy harvested power is very low. The energy harvesting interface circuit consists of MOSFET bridge ac-dc rectifier, voltage regulator, dc-dc step-up converter and an energy storage device with capacitor at the output terminal, replacing this by external battery. This paper will study results these important issues regarding the efficiencies of the energy harvesting power conversion interface circuits considering the storage device low voltage. The achievement of our development circuit is able to boost up minimum 1.67 V for input DC voltage of 300mV. The overall circuit efficiency is greater than 80 % following the simulation results. This research has focused on the application of Wireless Sensor Network (WSN) and bio-medical device can be operated without battery.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::86231446fea03878f9c7d88dad043cebTest
https://doi.org/10.1088/1742-6596/431/1/012025Test
النص الكامل