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This paper presents a real-time, low-cost, wireless, AC and DC monitoring system based on an ATmega328P-PU microcontroller. The proposed system is composed by different client nodes, which have the task to measure the main electrical quantities involved in the system, and a server node that collects the data and send them to a display device. The system is well suited for a good accuracy monitoring...
This paper is intended to fast protection of electric circuit from over load and a short circuit fault which is happens into the power system. So here for protection electric circuit from short circuit or over load current we introduce the ECB (Electronic Circuit Breaker) which has less trip time of circuit whenever abnormal condition occur as compared to mechanical or convectional circuit breaker...
This paper emphasis the best efforts and technique in reduction of harmonic content of the sinusoidal waveform in ac voltage. This is done by increasing the number of steps. In general, number of bridges are determined by the formula 2N+1=Levels, where N is the number of bridges, which leads to 10 bridges. But this research makes use of 4 H-Bridges. This is achieved by making use of asymmetrical multilevel...
Single-phase inverters are widely used to connect small-scale distributed renewable energy sources to the grid. However, unlike a three-phase system, designing the vector control for a single-phase inverter is more challenging. This paper presents a neural network based vector control technique for a single-phase inverter, as well as how to develop and design an embedded digital control system to...
A high-performance mixed-signal controller, based on the V2 architecture, has been designed to regulate a high-frequency (up to 10MHz) 16V-input synchronous buck converter with integrated driver and power stage in a 130nm Bipolar-CMOS-DMOS (BCD) technology. The inner loop has been implemented fully in the analog domain to support high switching frequencies, while the outer loop has been realized digitally...
This paper demonstrates the validation and performance testing of a decoupled controller for a single phase single stage rooftop PV by its hardware in loop (HIL) implementation. The designed controller was programmed in a digital signal controller. The rest of the system placed in real time simulator i.e. OP5600 HIL box from OPAL-RT. By the help of asynchronous communication between the plant in HIL...
Photovoltaic (PV) systems are emerging as a prevalent renewable energy source for electricity generation. PV systems utilize photovoltaic cells for converting solar energy to electrical energy. However, the intermittent nature of solar energy limits the applications of PV systems in numerous fields of power engineering. To overcome this limitation, this paper presents a hardware prototype of the grid...
This paper describes the implementation of Takagi-Sugeno fuzzy controller that is based on PIC18F4680 microcontroller, made by Microchip company. The paper explains the whole realization procedure, from theoretical explanation to hardware and software solutions. Whole Takagi-Sugeno fuzzy reasoning procedure is adjusted so it can be implemented on a microcontroller that has limited memory resources...
Feedback Type Electronic Load is a load to simulate the characteristics of the new power electronic devices, which can be used as test equipment. The energy can be feedback to the utility power system with little loss and high power factor. This paper introduce a practical system. System consists of the control circuits, main circuits and detection circuits. Control circuit uses two ATMega128 controller...
This paper presents a design and hardware implementation of a digital control section for chipless RFID tag readers. As the processing device a mid range microcontroller has been used. The control section is designed with a UWB chipless tag reader operating in the frequency range of 4.0 - 6.0 GHz. The designed digital controller has the capability of using with tags having a different number of bits...
Balancing small objects such as a normal pencil on its tip requires rapid feedback control with latencies on the order of milliseconds. Here we describe how a pair of spike-based silicon retina dynamic vision sensors (DVS) is used to provide fast visual feedback for controlling an actuated table to balance an ordinary pencil on its tip. Two DVSs view the pencil from right angles. Movements of the...
Wireless sensors are normally powered by non- rechargeable batteries, but these must be replaced when depleted. Recent developments in energy harvesting technology allow sensors to be powered by environmental energy where it is present, but the wide range of situations where sensors are deployed means that it is desirable for the energy components of a sensor node (i.e. batteries, supercapacitors,...
Freescale MC9S12DG128 16-bit MCU (micro controller unit), as the core control unit, constitutes a intelligent car system with DC motors, steering gear and power source, as well as other circuits, The system has designed hardware and software, and realized the real-time observation for the car through PC. MCU uses PID algorithm to realize real-time control to the angle of steering gear and marching...
Balancing a normal pencil on its tip requires rapid feedback control with latencies on the order of milliseconds. This demonstration shows how a pair of spike-based silicon retina dynamic vision sensors (DVS) is used to provide fast visual feedback for controlling an actuated table to balance an ordinary pencil. Two DVSs view the pencil from right angles. Movements of the pencil cause spike address-events...
The goal of the study presented in this paper is to develop an embedded biomedical system capable of delivering maximum performance on demand, while maintaining the optimal energy efficiency whenever possible. Several hardware and software solutions are presented allowing the system to intelligently change the power supply voltage and frequency in runtime. The resulting system allows use of more energy-efficient...
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