This paper discusses the design and construction scheme of an inverter system which converts DC voltage collected from a photovoltaic (PV) array into AC voltage. The output is pure sine wave, with frequency standard grid output. consists Switch Mode Power Supply (SMPS) full bridge circuit passive filter. power supply supplies needed to activate optocouplers, are connected switches circuitry. optocouplers work as isolation for circuit. High Pulse Width Modulated (PWM) pulses generated by...

The single-ended primary-inductor converter (SEPIC) is a popular topology that can be employed in diverse application fields where the needed output voltage greater or lesser than input voltage. non-inverted of SEPIC provides additional advantages when compared to buck-boost Ćuk converter. Furthermore, position capacitor inherent isolation and circuit safety. One drawback conventional bridge-diode AC-DC lack controllability which overcome by adding extra active switch(es) replacing passive...

For simple structure and lower maintenance cost, electric vehicles are popular in this sub-continent. As passenger vehicles, easy bikes being widely used Bangladesh. Mainly, iron core transformer based bulky chargers with efficiency than 80% to charge more 10 million bikes. These inefficient cause huge power losses national utility grid. Moreover, manual controls of such conventional charger bothersome its user. Implementations electronics able operate 90% which can reduce the from A high...

In this work, an analog front-end (AFE) circuit for electrocardiogram (ECG) detection system has been designed, implemented, and investigated in industry-standard Cadence simulation framework using advanced technology node of 45 nm. The AFE consists instrumentation amplifier, a Butterworth band-pass filter (with fifth-order low-pass second-order high-pass sections), notch filter—all are based on two-stage, Miller-compensated operational transconductance amplifiers (OTA). OTAs have designed...

In high power applications, the fault current limiter has been discussed for many years because of some limitations conventional circuit breakers. Many types have already introduced in papers. this work, a simple bridge-type designed and constructed. The performances tested successfully. limiter, DC reactor appears line when connected load is increasing. This causes voltage drop across terminal during changing. effect studied. Some experimental results regarding considered compared with...

This paper presents the design and implementation of a complete prototype low powered (25-30 watts), portable cost effective micro-inverter specially designed for rural areas developing countries where single solar module will be able to run AC loads along with DC loads. The system consists switch mode power supply, DC-DC push-pull converter, DCAC H-bridge inverter, LC filter finally test load. supply supplies voltage needed activate DCDC push pull converter optocouplers. optocouplers are...

One challenge in designing a photovoltaic (PV) system is to predict its generation, given parameters such as location, meteorological conditions, and layout. A greater the generation of under snow-cover condition. Publicly available snowfall data provide records for horizontal surfaces. However, effect snow accumulated on tilted PV module remains unknown. Hence, irradiance insufficient predicting output systems having any layout configuration. The research this paper aims daily through...

In this research, we have designed and developed an EOG-based Electric Wheelchair system for patients suffering from Quadriplegia or Quadriparesis similar condition where a person is not only unable to walk but also move fingers press button. The EOG recorder used capture intentional eye blink movements (i.e. signals) performed by the patient sitting in Wheelchair. recorded signals are then processed Arduino platform converted command control movement of wheelchair four directions left,...

Easy bikes or electric auto-rickshaws are the foremost commonly used vehicle in Bangladesh. Mainly, iron core transformer-based bulky chargers with an efficiency of up to 75% employed charge quite 1 million easy daily without any smart controls. Implementation power electronics-based charger ready operate additional than 90% which might reduce losses from utility grid. A high capacity synchronous buck converter based automated charging current controlling topology is proposed during this...

Efficient use of energy becomes more crucial when increase in the cost is observed. Since management required to define amount consumed a specific period time, utilization Energy Meters essential. It possible measure by using simple meter. But sometimes limited functionality these meters restricts their area application; especially inaccessible positions or situations where visibility meter poor, it not such an appliance. A solution Wireless Meter (WEM) which able send its data via wireless...

This paper presents a high-power density onboard integrated charger with multiple outputs-based H-bridge converters for BMS (Battery Management System) li-ion battery bank used in upgraded electric vehicles. The proposed converter can operate as AC to DC and transfer power from the supply grid packs through discrete of system drivetrain. controls over voltage, overcurrent, temperature pack. operation will be done more efficiently separate these BMSs. To obtain high efficiency density, an HF...

Electric three-wheeler auto rickshaws known as easy bikes are becoming quite common in Bangladesh. Due to obvious advantages offered by these vehicles such zero carbon emission and no requirement of gas encourages people transition from traditional fuel-operated vehicle electric vehicles. The battery charging stations for employ bulky chargers containing iron core transformers with maximum efficiency around 80%. As a country which suffers power shortages, it is highly desirable have charger...

This paper presents a solar-powered DC/AC drivetrain design for an electric boat with portable irrigation system. The optimal has 35 PV modules each of 95W (total 3. 3kW), 20 Lead-Acid batteries 12V90Ah 21kWh) as power sources. An induction motor (IM) 5HP to run the and pump 3HP are primary loads drivetrain. Two 3-phase inverters will control IM motors. On storage side, bi-directional buck-boost converter controls charging discharging process. These three controllers operate in MPPT (Maximum...

This paper proposes an innovative approach to utilizing Buck converter as ideal Power Factor Correction (PFC) controller where variable width Pulse Width Modulation (PWM) switching signals are generated and implemented reliably control the voltage current conversion phenomena. The developed topology is tactically utilized design efficacious grid-connected electric vehicle charger with substantially ameliorated line so that system loss can be averted in case of AC-DC charging circuits. In...

This study focuses on the implementation of web based low cost yet effective remote laboratory system for engineering education to utilize limited resources improving student's practical knowledge as well self learning ability. The proposed provides experience students in field power electronics and telecommunications. lab allows perform experiment by controlling various experimental apparatus real time from their home or any preferred location using internet connection. Several experiments...

Electric motors are used to pump water in multistoried building. Total power consumed by those is huge urban area. By implementing a renewable energy source run can save from national grid. The purpose of this paper provide information about planning and installation solar powered pumping systems using Thin Film PV (Photo Voltaic) Module. 20 panels 95 Watt mounted movable concrete pillar for flexibility. A 3D design was created SketchUp bring perfection mounting panels. three phase inverter...

It is mandatory in Bangladesh to install solar panel on the rooftop of a newly build apartment or factory order get utility connection from service provider. The most cost-effective and efficient way producing energy using connect panels grid through Grid Tie Inverter (GTI). GTI one important components tie system that basically converts dc power into ac power; synchronizing phase, frequency voltage grid. Presently almost all uses are imported other countries it very expensive. A low cost 1...

With the improvement of technology and economic enhancement, people are now using fuel or grid powered machine for food processing. Among all agricultural crops, rice is main crop cultivated in Bangladesh a high efficient processing required this. But excessive rise prices limitation power supply to off areas an obstacle this sector. Ozone gas emissions both burning generation results global warming health issues due inhalation smoke. Because good solar irradiation pattern, husking can...

Solar photovoltaic systems are becoming increasingly popular as industries try to decrease their carbon footprint. This paper presents a generic optimization framework and examines case study where flat rooftop located in Edmonton, Alberta is investigated for the installation of array. The objectives this maximize power generation while minimizing system cost. represents proposed that fulfills problem. per month forecasted using historical data. Panels can be installed at different tilt...

In this work, an analog front-end (AFE) circuit for Electrocardiogram (ECG) detection system has been designed, implemented, and investigated in industry-standard Cadence simulation framework using advanced technology node of 45 nm. The AFE consists instrumentation amplifier, a Butterworth band-pass filter (with fifth-order low-pass second-order high-pass sections), notch filter- all are based on two-stage, Miller-compensated operational transconductance amplifiers (OTA). OTAs have designed...