DC Power Supply Research Papers (original) (raw)

Bộ nguồn DC là thiết bị biến đổi điện xoay chiều điện áp lớn thành điện một chiều với điện áp nhỏ hơn. Để tìm hiểu chi tiết về loại thiết bị này, mời bạn tham khảo bài viết nhé Thông tin liên hệ Công ty TNHH Đầu Tư Phát Triển Cuộc Sống... more

Bộ nguồn DC là thiết bị biến đổi điện xoay chiều điện áp lớn thành điện một chiều với điện áp nhỏ hơn. Để tìm hiểu chi tiết về loại thiết bị này, mời bạn tham khảo bài viết nhé
Thông tin liên hệ
Công ty TNHH Đầu Tư Phát Triển Cuộc Sống
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Transient response of three level buck converter depends on the slew rate of filter inductance. The slew rate of filter inductor can be increased either by decreasing the inductance magnitude or by increasing the voltage across the... more

Transient response of three level buck converter depends on the slew rate of filter inductance. The slew rate of filter inductor can be increased either by decreasing the inductance magnitude or by increasing the voltage across the inductor. Decreasing the inductance magnitude results in higher losses in the converter due to increase of inductor current ripples. In a three level buck converter, the voltage across the inductor during step up load transient is 0.5Vin-Vout, while during step down load transient is –Vout. For smaller duty cycle applications, three level buck converter offers slow step up and step down load transient response because of limited magnitude of voltage across the inductor. In this paper a new three level buck converter topology is proposed, which will increase the magnitude of voltage across the inductor during load transients and thus will improve the transient response. After load transient, the converter will recover to normal steady state condition and will behave just like a three level converter in steady state. Theoretical and simulation results are presented to show the effectiveness of
proposed topology in terms of settling time for step up and step down load transient response. Keywords-Slew rate, 3-level converter, switching stresses, Settling time, Voltage overshoot and undershoot

Power management plays a major role in virtually every electronic system because it controls, regulates, and distributes DC power throughout the system. Therefore, the DC power management subsystem can affect the reliability, performance,... more

Power management plays a major role in virtually every electronic system because it controls, regulates, and distributes DC power throughout the system. Therefore, the DC power management subsystem can affect the reliability, performance, cost, and time-to-market of the associated electronic equipment.
Power management subsystems enable an electronic system to function properly by supplying and controlling its DC power. An analogy is that a power management subsystem functions in a manner similar to the body’s blood vessels that supply the proper nutrients to keep the body alive. Likewise, the power management subsystem supplies and controls the power that keeps an electronic system alive.

This paper presents a study of a low-cost photovoltaic (PV) emulator to test the real implementation of maximum power point tracking (MPPT) algorithm. This PV emulator is composed of a variable DC supply in series with a variable... more

This paper presents a study of a low-cost photovoltaic (PV) emulator to test the real implementation of maximum power point tracking (MPPT) algorithm. This PV emulator is composed of a variable DC supply in series with a variable resistor; it is based on the maximum power transfer theorem in order to provide a curve that exhibits a peak which can be tracked by an MPPT algorithm. Moreover, this emulator can be used to test the performance of the MPPT algorithm under fast variation of the solar irradiance and temperature. For this reason, the P&O MPPT algorithm with a boost DC-DC converter is used in order to validate the functionality of the PV emulator. Finally, the experimental results show that our PV emulator can provide a simple, efficient and low-cost way for users (researchers, engineers, students, etc.) to test and validate their MPPT algorithms.

This paper presented a Variable DC power supply system The presented DC power supply system provides the input current with low current distortion on the ac input side and the stable output dc voltage with low ripple voltage on the dc... more

This paper presented a Variable DC power supply system The presented DC power supply system provides the input current with low current distortion on the ac input side and the stable output dc voltage with low ripple voltage on the dc output side

The high cost of commercial PV emulators requires finding new solutions for building low-cost system having similar behavior of PV panel. In this work, we present a low-cost emulator using a variable DC supply with a series variable... more

The high cost of commercial PV emulators requires finding new solutions for building
low-cost system having similar behavior of PV panel. In this work, we present a low-cost
emulator using a variable DC supply with a series variable resistor; based the maximum power transfer theorem. On the other hands, a study of the behavior of this emulator is done. The results of experiments test are shown that our PV emulator can provide a simple, efficient and a lowcost way for researchers to test and verify their MPPT algorithms in a laboratory environment.

Programmable power Supply up to 10 kW

Gaseous exhausts from various industries pollute the environment with flyash generally filtered by electrostatic precipitators (ESPs) before being released to the atmosphere. This paper presents the development of a controller for ESP... more

Gaseous exhausts from various industries pollute the environment with flyash generally filtered by electrostatic precipitators (ESPs) before being released to the atmosphere. This paper presents the development of a controller for ESP power supply. The controller maintains the voltage applied to ESP at its maximum average value by duty cycle control that results in an improvement in dust collection-efficiency. The limiting factor for the output voltage is the breakdown of gas (spark/arc) in the electrode gap of ESP. During a spark/arc condition, the duty cycle limit imposed by the controller causes a reduction in output voltage that leads to the prevention of spark/arc. The present design has a response faster than line frequency power supply controllers. The control circuit is simpler, easy to implement and uses a standard PWM controller IC. The design of power stage uses a flyback current-fed push-pull DC-DC converter with multiple secondary circuits, which has the advantages of instantaneous current limit and less voltage stress on rectifier-diodes. Simulation is performed to obtain a 1 kV, 100 W output from a 24VDC source. The results are compared with experimental values to validate the controller's ability to achieve good load regulation during normal operation and a reduction in output voltage during spark/arc condition.

Today’s bulk power system is massive, complex, and very dynamic. The U.S. power grid spans from coast to coast and even as far reaching as Canada. With the addition of new technologies such as renewable energies and power electronics to... more

Today’s bulk power system is massive, complex, and very dynamic. The U.S. power grid spans from coast to coast and even as far reaching as Canada. With the addition of new technologies such as renewable energies and power electronics to aid in power conversion and control, the power system grows more complex by the day. The most common approach of analyzing power system stability isthrough computer modeling and simulation. Due to the vast size and inaccessibility of transmission systems, real time testing can prove difficult. Themotivation of thisproject wasto design, simulate, and construct an IEEE 14 bus power system for future use in a lab setting to test, in real time, novel control techniquesfor various forms of generation and their impacts on the stability of the grid. This Paper presents the theory used to design and construct an IEEE 14-bus power system. A comparison of results from modeling and simulation with actual lab data obtained from the constructed test set up.

Untuk membuat rangkaian power supply, disini kami menggunakan Software Proteus 8 Profesional Untuk membuatnya terlebih dahulu kita harus menginstalnya pada Google Chrome, setelah mendownload nya,buka, dan klik New Project, kemudian kita... more

Untuk membuat rangkaian power supply, disini kami menggunakan Software Proteus 8 Profesional
Untuk membuatnya terlebih dahulu kita harus menginstalnya pada Google Chrome, setelah mendownload nya,buka, dan klik New Project, kemudian kita klik HURUF P berwarna biru untuk mencari komponen pada library proteus itu sendiri

As we all know that demand of energy is increasing day by day. We all are surrounded by the Radio Frequency waves, so the harvesting of radio waves for our energy requirements could be the alternative source of energy. Rectenna is a... more

As we all know that demand of energy is increasing day by day. We all are surrounded by the Radio Frequency waves, so the harvesting of radio waves for our energy requirements could be the alternative source of energy. Rectenna is a device that is used to convert RF Energy into DC power. Rectenna is designed using triangular micro strip patch antenna TMPA. The main motive behind this is to have battery free devices. This thing will also help us to protect our nature from harmful chemicals like cadmium, mercury etc. that are used in batteries This paper is concerned with the study design, analysis and fabrication of multi band Rectenna so that it can be used at various frequencies. We have used the blank box optimization technique in order to get enhanced bandwidth, gain, Return Loss and efficiency.