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Articoli di riviste sul tema "Dc-voltage"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 18 febbraio 2022

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1

Pontes, Yury, Carlos Elmano de Alencar e Silva e Edilson Mineiro Sá Junior. "HIGH-VOLTAGE GAIN DC-DC CONVERTER FOR PHOTOVOLTAIC APPLICATIONS IN DC NANOGRIDS". Eletrônica de Potência 25, n. 4 (15 dicembre 2020): 1–8. http://dx.doi.org/10.18618/rep.2020.4.0021.

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2

Hyun-Lark, Do. "Isolated Zero-Voltage-Switching DC-DC Converter with High Voltage Gain". EPE Journal 23, n. 1 (marzo 2013): 5–12. http://dx.doi.org/10.1080/09398368.2013.11463840.

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3

Ting-Ting Song, Huai Wang, H. S. H. Chung, S. Tapuhi e A. Ioinovici. "A High-Voltage ZVZCS DC--DC Converter With Low Voltage Stress". IEEE Transactions on Power Electronics 23, n. 6 (novembre 2008): 2630–47. http://dx.doi.org/10.1109/tpel.2008.2003984.

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4

Ni, Jin Long, e An Ding Zhu. "Online DC Voltage Measurement by Using DC-to-DC Converters". Advanced Materials Research 211-212 (febbraio 2011): 97–101. http://dx.doi.org/10.4028/www.scientific.net/amr.211-212.97.

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In order to measure the terminal voltage of a lead-acid battery online, a DC-to-DC converter – MC34063 is used to convert the D.C. input voltage to the supply voltage of measurement circuit. A three-terminal adjustable regulator of TL431A is used to generate a standard reference voltage for the A/D converter of the Microchip MCU – PIC16F873A. This D.C. voltage meter takes advantage of high accuracy of measurement and high stability.

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5

Kursun, V., S. G. Narendra, V. K. De e E. G. Friedman. "Low-Voltage-Swing Monolithic dc–dc Conversion". IEEE Transactions on Circuits and Systems II: Express Briefs 51, n. 5 (maggio 2004): 241–48. http://dx.doi.org/10.1109/tcsii.2004.827557.

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6

Yuhendri, Muldi, e Randy Setiawan. "Implementasi DC-DC Boost Converter Menggunakan Arduino Berbasis Simulink Matlab". JTEIN: Jurnal Teknik Elektro Indonesia 1, n. 2 (8 novembre 2020): 144–49. http://dx.doi.org/10.24036/jtein.v1i2.64.

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Direct current (dc) voltage sources are one of the voltage sources most widely used for various purposes. Dc voltage can be obtained from a dc generator or by converting an ac voltage into a dc voltage using a power converter. There are several dc voltage levels that are commonly used by electrical and electronic equipment. To get a dc voltage that can be used for various equipment, then a dc voltage source must be varied according to the required. One way to get a variable dc voltage is to use a dc-dc converter. This research proposes a dc-dc boost converter that can increase the dc voltage with varying outputs. The boost converter is proposed using Arduino Uno as a controller with an input voltage of 12 volts. The converter output voltage regulation is implemented through Arduino programming using Matlab simulink. The experimental results show that the boost converter designed in this study has worked well as intended. This can be seen from the boost converter output voltage which is in accordance with the reference voltage entered in the Matlab simulink program

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7

Sivapriyan, R., e D. Elangovan. "Impedance-Source DC-to-AC/DC Converter". Electronics 8, n. 4 (16 aprile 2019): 438. http://dx.doi.org/10.3390/electronics8040438.

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This article presents a novel impedance-source-based direct current (DC)-to-alternating current (AC)/DC converter (Z-Source DAD Converter). The Z-Source DAD converter converts the input DC voltage into AC or DC with buck or boost in the load voltage. This Z-Source DAD conversion circuit is a single-stage power conversion system. This converter circuit converts the input DC voltage into variable-magnitude output DC voltage or converts the DC voltage into a variable-magnitude output AC voltage. The higher voltage magnitude in boost mode can be controlled by controlling the shoot-through (ST) state timing of the converter. MATLAB-Simulink simulation and microcontroller-based hardware circuit results are presented to demonstrate power conversion with the buck and boost features of the Z-Source DAD converter for both types of output voltages. The simulation and experimental results show that the Z-Source DAD converter converts the given DC supply into AC or DC with buck or boost in the output load voltage.

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8

Liu, L. X., S. W. Chua e C. K. Ang. "Determination of DC Voltage Ratio of a Self-Calibrating DC Voltage Divider". IEEE Transactions on Instrumentation and Measurement 54, n. 2 (aprile 2005): 571–75. http://dx.doi.org/10.1109/tim.2004.843089.

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9

Do, Hyun-Lark. "A Zero-Voltage-Switching DC–DC Converter With High Voltage Gain". IEEE Transactions on Power Electronics 26, n. 5 (maggio 2011): 1578–86. http://dx.doi.org/10.1109/tpel.2010.2087038.

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10

Gomes de Assis, Bruno, Eduardo Pacheco Carreiro Braga, Claudinor Bitencourt Nascimento e Eloi Agostini Junior. "High-Voltage-Gain Integrated Boost-SEPIC DC-DC Converter for Renewable Energy Applications". Eletrônica de Potência 24, n. 3 (30 settembre 2019): 336–44. http://dx.doi.org/10.18618/rep.2019.3.0025.

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11

Kim, Wooho, Yong-Jung Kim e Hyosung Kim. "Arc Voltage and Current Characteristics in Low-Voltage Direct Current". Energies 11, n. 10 (20 settembre 2018): 2511. http://dx.doi.org/10.3390/en11102511.

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Recently, Low-Voltage DC (direct current) distribution systems have received high lights according to the expansion of DC generations and DC loads such as photovoltaics (PV) generations, electric vehicles (EVs), light emitting diodes (LEDs), computers, DC homes, etc. Low-Voltage DC distribution systems have optimistic perspectives since DC has various good aspects compared to alternating current (AC). However, ensuring safety of human and electric facility in Low-Voltage DC is not easy because of arc generation and difficulty of arc-extinguishing. This paper constructs a low-voltage DC circuit and studies the arc interruption that occurs when separating electrodes from where load currents flow. Also, arc extinguishers are experimented upon and analysed in various levels of source voltage and load currents conditions. Voltage and current characteristics for arc interruption are identified based on experimental results, and we establish the electric generation for arc interruption. Further, the voltage–current characteristics and the correlation of arc during arc duration time arc are verified, and the voltage–current equation and DC arc resistance model for the breaking arc are developed.

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12

Ali Azam Khan, Md, e Mohammad Ali Choudhury. "Efficient Voltage Regulation with Modified Hybrid SEPIC DC-DC-Converter". MATEC Web of Conferences 160 (2018): 02004. http://dx.doi.org/10.1051/matecconf/201816002004.

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Switch mode dc-dc converters are attractive for their small size, ease of control and efficient power conversion. Output voltage is regulated by duty cycle control of semiconductor switch of switch mode dc-dc converters. The voltage gain and efficiency of practical switching regulators deviate from ideal values at extreme duty cycles. Also, desired gain /attenuation is not achievable at high/low duty cycles. In applications where high gain or high attenuation of voltage is desired with acceptable energy conversion efficiency, hybrid dc-dc switching converters are used. Hybrid dc-dc converters are combination of voltage multiplier/division circuit with appropriate SMPS circuits. By incorporating voltage multiplier/division cell with conventional SEPIC converters, desired voltage gain (either very low or very high) may be achieved at acceptable energy conversion efficiency. In the present work with an aim to attain very high voltage gain by conventional SEPIC topologies, a new voltage multiplier cell consisting of multiple inductors and diodes is proposed.

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13

Chien-Ming Wang. "Novel zero-Voltage-transition PWM DC-DC converters". IEEE Transactions on Industrial Electronics 53, n. 1 (febbraio 2006): 254–62. http://dx.doi.org/10.1109/tie.2005.862253.

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14

Dusmez, Serkan, Alireza Khaligh e Amin Hasanzadeh. "A Zero-Voltage-Transition Bidirectional DC/DC Converter". IEEE Transactions on Industrial Electronics 62, n. 5 (maggio 2015): 3152–62. http://dx.doi.org/10.1109/tie.2015.2404825.

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15

Liu, K. H., e F. C. Y. Lee. "Zero-voltage switching technique in DC/DC converters". IEEE Transactions on Power Electronics 5, n. 3 (luglio 1990): 293–304. http://dx.doi.org/10.1109/63.56520.

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16

Do, Hyun-Lark. "Nonisolated Bidirectional Zero-Voltage-Switching DC–DC Converter". IEEE Transactions on Power Electronics 26, n. 9 (settembre 2011): 2563–69. http://dx.doi.org/10.1109/tpel.2011.2111387.

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17

van Wesenbeeck, M. P. N., J. B. Klaasens, U. von Stockhausen, A. Munoz de Morales Anciola e S. S. Valtchev. "A multiple-switch high-voltage DC-DC converter". IEEE Transactions on Industrial Electronics 44, n. 6 (1997): 780–87. http://dx.doi.org/10.1109/41.649939.

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18

Siwakoti, Yam P., Ali Mostaan, Ahmed Abdelhakim, Pooya Davari, Mohsen N. Soltani, Md Noman Habib Khan, Li Li e Frede Blaabjerg. "High-Voltage Gain Quasi-SEPIC DC–DC Converter". IEEE Journal of Emerging and Selected Topics in Power Electronics 7, n. 2 (giugno 2019): 1243–57. http://dx.doi.org/10.1109/jestpe.2018.2859425.

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19

Martínez-García, Herminio, e Alireza Saberkari. "Four-quadrant linear-assisted DC/DC voltage regulator". Analog Integrated Circuits and Signal Processing 88, n. 1 (23 aprile 2016): 151–60. http://dx.doi.org/10.1007/s10470-016-0747-8.

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20

Veselovskiy, A. P., L. I. Kosareva e S. G. Zverev. "Linear voltage regulation in DC-to-DC converters". Journal of Physics: Conference Series 1753, n. 1 (1 febbraio 2021): 012015. http://dx.doi.org/10.1088/1742-6596/1753/1/012015.

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21

Y, Sukhi. "Bidirectional DC-DC Converter Using Zero Voltage Switching". Revista Gestão Inovação e Tecnologias 11, n. 4 (15 luglio 2021): 3336–51. http://dx.doi.org/10.47059/revistageintec.v11i4.2374.

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22

Bonab, Hossein Ajdar Faeghi, Mohamad Reza Banaei e Navid Taghizadegan Kalantari. "A Voltage Multiplier Based High Voltage Gain Transformerless Buck–Boost DC–DC Converter". Journal of Circuits, Systems and Computers 27, n. 12 (22 giugno 2018): 1850188. http://dx.doi.org/10.1142/s0218126618501888.

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In this paper, a new transformerless buck–boost converter is introduced. The proposed converter voltage gain is higher that of the conventional buck–boost converter. In the presented converter, only one power switch is used. The switch voltage stress is low, therefore, the low on-state resistance of the power switch can be selected to decrease losses of the switch. The presented converter topology is simple, hence the control of the converter will be simple. The mathematical analyses and principle of the proposed converter are explained. The validity of the proposed converter is confirmed by the experimental results.

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23

Lee, Sze Sing, Shahid Iqbal e Mohamad Kamarol. "Double-series Resonant Inverter-fed Voltage Multiplier Based High-voltage DC-DC Converter". Electric Power Components and Systems 41, n. 15 (18 novembre 2013): 1518–35. http://dx.doi.org/10.1080/15325008.2013.830660.

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24

Lee, Sin-Woo, e Hyun-Lark Do. "Quadratic Boost DC–DC Converter With High Voltage Gain and Reduced Voltage Stresses". IEEE Transactions on Power Electronics 34, n. 3 (marzo 2019): 2397–404. http://dx.doi.org/10.1109/tpel.2018.2842051.

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25

Candra, Kevin, e Leonardus Heru Pratomo. "Pengendalian Tegangan Keluaran DC-DC Boost Converter Tipe Voltage Doubler Menggunakan Mikrokontroler STM32F1038CT". Jurnal Teknik Elektro 12, n. 2 (20 dicembre 2020): 40–46. http://dx.doi.org/10.15294/jte.v12i2.25662.

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Five-level inverter is widely used in many industrial applications, for example as a three-phase electric motor drive, PLTS, etc. This inverter works using two separated DC voltage sources in order to form different voltage level. Five-level inverter using one DC voltage source will be more efficient. A DC-DC boost converter on Voltage Doubler type is used in order to solve the problem. The focus of this research is on controlling the DC-DC boost converter on Voltage Doubler type. The switch control method uses a shifted pulse width modulation of 1800. To get a suitable output voltage, an output voltage control system is applied. A proportional and integral type control is implemented using STM32F1038CT microcontroller. The output voltage controlled DC-DC boost converter is validated through computational simulation with Power Simulator software and as the final step will be implemented on hardware in the laboratory. Based on the simulation and implementation, Voltage-Doubler type of DC-DC boost converter is able to produce the required output voltage, which is two times greater than the conventional DC-DC boost converter output voltage.

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26

Ahmad, Javed, Mohammad Zaid, Adil Sarwar, Chang-Hua Lin, Mohammed Asim, Raj Kumar Yadav, Mohd Tariq, Kuntal Satpathi e Basem Alamri. "A New High-Gain DC-DC Converter with Continuous Input Current for DC Microgrid Applications". Energies 14, n. 9 (4 maggio 2021): 2629. http://dx.doi.org/10.3390/en14092629.

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The growth of renewable energy in the last two decades has led to the development of new power electronic converters. The DC microgrid can operate in standalone mode, or it can be grid-connected. A DC microgrid consists of various distributed generation (DG) units like solar PV arrays, fuel cells, ultracapacitors, and microturbines. The DC-DC converter plays an important role in boosting the output voltage in DC microgrids. DC-DC converters are needed to boost the output voltage so that a common voltage from different sources is available at the DC link. A conventional boost converter (CBC) suffers from the problem of limited voltage gain, and the stress across the switch is usually equal to the output voltage. The output from DG sources is low and requires high-gain boost converters to enhance the output voltage. In this paper, a new high-gain DC-DC converter with quadratic voltage gain and reduced voltage stress across switching devices was proposed. The proposed converter was an improvement over the CBC and quadratic boost converter (QBC). The converter utilized only two switched inductors, two capacitors, and two switches to achieve the gain. The converter was compared with other recently developed topologies in terms of stress, the number of passive components, and voltage stress across switching devices. The loss analysis also was done using the Piecewise Linear Electrical Circuit Simulation (PLCES). The experimental and theoretical analyses closely agreed with each other.

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27

Toumi, Toufik, Ahmed Allali, Othmane Abdelkhalek, Abdallah Ben Abdelkader, Abdelmalek Meftouhi e Mohammed Amine Soumeur. "PV integrated single-phase dynamic voltage restorer for sag voltage, voltage fluctuations and harmonics compensation". International Journal of Power Electronics and Drive Systems (IJPEDS) 11, n. 1 (1 marzo 2020): 547. http://dx.doi.org/10.11591/ijpeds.v11.i1.pp547-554.

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<span>This document proposes a photovoltaic (PV) based single-phase dynamic voltage restoration (DVR) device, it eliminates both sag and swell voltage and compensates for power. The proposed system requires a power source to compensate for the sag/swell voltage. This system has found a simple topology for the DVR that uses PV with two DC-DC boosts converters as the DC power source for the dynamic voltage conservator. The DC/DC boost converter powered by the PV generator is used to increase the voltage to meet the DC bus voltage requirements of the single-branch voltage source inverter (VSI). This system uses renewable energy; saves energy accordingly and supplies power to critical/sensitive loads. The control method used in this work is a Sliding Mode Control (SMC) method and relies on a phase locked loop (PLL) used to control the active filter. The effectiveness of the suggested method is confirmed by the MATLAB/Simulink® simulation results and some prototype experiments. These results show the capacity of the proposed DC link control.</span>

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28

Cheng, Chun An, Hung Liang Cheng, Chien Hsuan Chang, En Chih Chang e Fu Li Yang. "Design and Implementation of a Novel High-Step-Up DC-DC Converter". Applied Mechanics and Materials 284-287 (gennaio 2013): 2498–501. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.2498.

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This paper proposes a novel high-step-up DC-DC power converter for high output-voltage applications from a low level of input voltage. The presented power converter is composed of a integrated boost-flyback converter with two output windings plus cascaded voltage doublers to boost up the 12 V input voltage to a high DC voltage level of 400 V. Description of the presented DC-DC power conversion circuit, and experimental results of a prototype converter for providing 40W output power with a 12V input DC voltage are demonstrated.

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29

Du, Sixing, Bin Wu e Navid R. Zargari. "A Transformerless High-Voltage DC–DC Converter for DC Grid Interconnection". IEEE Transactions on Power Delivery 33, n. 1 (febbraio 2018): 282–90. http://dx.doi.org/10.1109/tpwrd.2017.2692480.

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30

Reaungepattanawiwat, Chalermpol, e Yutthana Kanthaphayao. "Voltage Multiplier Circuits with Coupled-Inductor Applied to a High Step-Up DC-DC Converter". Applied Mechanics and Materials 781 (agosto 2015): 418–21. http://dx.doi.org/10.4028/www.scientific.net/amm.781.418.

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This paper presents a high voltage gain of a DC-DC converter. The proposed system consists of voltage multiplier circuits and a coupled inductor of a boost DC-DC converter. The input voltage of the voltage multiplier circuit is the induced voltage of inductor at a boost DC-DC converter. The field programmable gate array (FGPA) is used for generating the control signal of the proposed system. To verify the proposed circuit, an experiment was conducted from the prototype circuit. The proposed circuit can step-up the voltage with high voltage gain. Moreover, the voltage across the switch is very low.

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31

Ismail, Ali Ahmed Adam, e A. Elnady. "Design and implementation of multilevel non-isolated DC-DC converter for variable DC voltage source". International Journal of Power Electronics and Drive Systems (IJPEDS) 12, n. 2 (1 giugno 2021): 994. http://dx.doi.org/10.11591/ijpeds.v12.i2.pp994-1005.

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<span lang="EN-US">In this paper, a non-isolated multi-level DC-DC (MLDC-DC) smooth buck converter with the LC filter is designed and analyzed. The presented topology can be used in low or medium voltage levels in several applications that use DC storage elements. The use of the proposed multilevel converter topology reduces the voltage stress across the power converter switching elements and facilitates the voltage rating of the switches. The designed LC filter for the multilevel converter is characterized by a small inductor size, which reduces the traditional bulky inductor used in the output of the traditional DC-DC converter. The reduction in the filter size is proportional to the number of the connected voltage sources, it works effectively to reduce ripple in the load currents, and it increases the voltage gain. The intensive analysis of the converter system and the experimental results show a stable operation of the proposed converter with precise output voltage.</span>

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32

Wang, Rong, Heng Chen, Teng Fei Lei e Yun Shi. "Research on Forward DC-DC Converter with High Power". Advanced Materials Research 978 (giugno 2014): 63–66. http://dx.doi.org/10.4028/www.scientific.net/amr.978.63.

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According to the requirements of the aircraft power supply equipment, the high voltage DC-DC power converter module is developed. In this paper, the HVDC (High Voltage DC-DC Converter) topology is studied. The starting circuit is designed based on the control chip TL3844. The components parameters are calculated. An overvoltage protection circuit and a current limiting protection circuit are designed to improve the stability of the system. At the same time voltage compensation circuit is designed to compensate the voltage.

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33

Liu, Zhengxin, Jiuyu Du e Boyang Yu. "Design Method of Double-Boost DC/DC Converter with High Voltage Gain for Electric Vehicles". World Electric Vehicle Journal 11, n. 4 (7 ottobre 2020): 64. http://dx.doi.org/10.3390/wevj11040064.

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Direct current to direct current (DC/DC) converters are required to have higher voltage gains in some applications for electric vehicles, high-voltage level charging systems and fuel cell electric vehicles. Therefore, it is greatly important to carry out research on high voltage gain DC/DC converters. To improve the efficiency of high voltage gain DC/DC converters and solve the problems of output voltage ripple and robustness, this paper proposes a double-boost DC/DC converter. Based on the small-signal model of the proposed converter, a double closed-loop controller with voltage–current feedback and input voltage feedforward is designed. The experimental results show that the maximum efficiency of the proposed converter exceeds 95%, and the output voltage ripple factor is 0.01. Compared with the traditional boost converter and multi-phase interleaved DC/DC converter, the proposed topology has certain advantages in terms of voltage gain, device stress, number of devices, and application of control algorithms.

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34

Sanjeevikumar, P., e K. Rajambal. "Extra-High-Voltage DC-DC Boost Converters Topology with Simple Control Strategy". Modelling and Simulation in Engineering 2008 (2008): 1–8. http://dx.doi.org/10.1155/2008/593042.

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This paper presents the topology of operating DC-DC buck converter in boost mode for extra-high-voltage applications. Traditional DC-DC boost converters are used in high-voltage applications, but they are not economical due to the limited output voltage, efficiency and they require two sensors with complex control algorithm. Moreover, due to the effect of parasitic elements the output voltage and power transfer efficiency of DC-DC converters are limited. These limitations are overcome by using the voltage lift technique, opens a good way to improve the performance characteristics of DC-DC converter. The technique is applied to DC-DC converter and a simplified control algorithm in this paper. The performance of the controller is studied for both line and load disturbances. These converters perform positive DC-DC voltage increasing conversion with high power density, high efficiency, low cost in simple structure, small ripples, and wide range of control. Simulation results along theoretical analysis are provided to verify its performance.

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35

Amano, Hisao, Norikazu Tokunaga e Hiroshi Fukui. "Hight voltage DC semiconductor switch." IEEJ Transactions on Power and Energy 105, n. 2 (1985): 109–16. http://dx.doi.org/10.1541/ieejpes1972.105.109.

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Bekink, J. S., e A. J. J. Colijn. "High Voltage DC Power Supplies". EPE Journal 4, n. 2 (giugno 1994): 11–13. http://dx.doi.org/10.1080/09398368.1994.11463337.

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Gebremedhin Hailu, Tsegay, Laurens Mackay, Laura M. Ramirez-Elizondo e Jan A. Ferreira. "Voltage Weak DC Distribution Grids". Electric Power Components and Systems 45, n. 10 (15 giugno 2017): 1091–105. http://dx.doi.org/10.1080/15325008.2017.1319436.

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Bityukov, V. K., N. G. Mikhnevich e V. A. Petrov. "Negative Output Voltage Ripples of Bipolar DC–DC Converter LM27762 near Maximum Input Voltage". Russian Technological Journal 7, n. 4 (11 agosto 2019): 31–43. http://dx.doi.org/10.32362/2500-316x-2019-7-4-31-43.

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The paper presents the results of studies of the operation of the inverting DC–DC converter with charge pump and LDO, which are part of the combined bipolar secondary power supply LM27762, at the near to maximum input voltage of 5.5 V and an output voltage of –4.9 V. The ripple voltages were measured at various load currents from 10 to 250 mA at the positive pole of the flying capacitor, at the output of the charge pump system and at the output of the microcircuit. It was shown for the first time on the basis of the obtained information that at low load currents up to about 107 mA the charge pump system operates in the burst mode, and at currents greater than 109 mA – in the charge pump mode with a constant frequency. The results do not confirm the information in the documentation on the microcircuit that, at themaximum input voltage of 5.5 V, the charge pump can enter the PWM mode in hot conditions. When working in burst mode, the presence of LDO in the LM27762 chip reduces the ripples of the negative voltage at the output. However, they significantly exceed the values given in the documentation on the chip. During switching to the constant–frequency mode, the level of negative voltage ripples at the output of the microcircuit decreases sharply, but it increases with further increase of the load current and exceeds the values given in the documentation.

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Silveira, George Cajazeiras, Fernando Lessa Tofoli, Luiz Daniel Santos Bezerra e Rene Pastor Torrico-Bascope. "A Nonisolated DC–DC Boost Converter With High Voltage Gain and Balanced Output Voltage". IEEE Transactions on Industrial Electronics 61, n. 12 (dicembre 2014): 6739–46. http://dx.doi.org/10.1109/tie.2014.2317136.

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Cao, Yong, Vahid Samavatian, Kaveh Kaskani e Hamidreza Eshraghi. "A Novel Nonisolated Ultra-High-Voltage-Gain DC–DC Converter With Low Voltage Stress". IEEE Transactions on Industrial Electronics 64, n. 4 (aprile 2017): 2809–19. http://dx.doi.org/10.1109/tie.2016.2632681.

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Alzahrani, Ahmad, Mehdi Ferdowsi e Pourya Shamsi. "High-Voltage-Gain DC–DC Step-Up Converter With Bifold Dickson Voltage Multiplier Cells". IEEE Transactions on Power Electronics 34, n. 10 (ottobre 2019): 9732–42. http://dx.doi.org/10.1109/tpel.2018.2890437.

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42

Chauhan, R. K., B. S. Rajpurohit, R. E. Hebner, S. N. Singh e F. M. Gonzalez-Longatt. "Voltage Standardization of DC Distribution System for Residential Buildings". Journal of Clean Energy Technologies 4, n. 3 (2015): 167–72. http://dx.doi.org/10.7763/jocet.2016.v4.273.

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43

P, Tamil Selvan, Vinothkumar K e Sugumar V. "Advanced Active Filter AAF with Reduced DC Link Voltage". International Journal of Trend in Scientific Research and Development Volume-3, Issue-3 (30 aprile 2019): 304–6. http://dx.doi.org/10.31142/ijtsrd21764.

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44

Gadhethariya, Fenil V., e Melvin Z. Thomas. "Analysis of Voltage Droop Control of Dc Micro-Grid". Indian Journal of Applied Research 4, n. 5 (1 ottobre 2011): 235–38. http://dx.doi.org/10.15373/2249555x/may2014/69.

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45

Girma, Chimdi Tadesse, e chi song. "Voltage control of bidirectional DC-DC converter with constant power source". MATEC Web of Conferences 232 (2018): 04038. http://dx.doi.org/10.1051/matecconf/201823204038.

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Abstract (sommario):

—Bidirectional DC/DC converters are used in the interface of the battery bank and the high voltage direct current terminal of an inverter. The performance of the system depends on the control of voltage and current across the circuit. Voltage control in eliminates the need for changing the control loop when the power supply is changed to the alternating current source. The report explains the constant power supply voltage control. The diagram for the bidirectional dc/dc converters is analysed and the mathematical representations are given. The dynamic performance of the circuit is calculated to give the efficiency of the system in DC-link voltage control.

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46

Selvam, K. C., e S. Latha. "A Novel Voltage Divider Circuit". Engineering, Technology & Applied Science Research 2, n. 5 (6 ottobre 2012): 278–80. http://dx.doi.org/10.48084/etasr.239.

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Abstract (sommario):

A novel analog divider is described in this paper. The circuit enables the division of a dc voltage with another dc voltage. The constant of the division is dependent upon a third dc voltage and a pair of resistors. Employing a precision source for the third dc voltage and matched resistors, an acceptable level of accuracy can be obtained.

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47

Alsokhiry, Fahad, e Grain Philip Adam. "Multi-Port DC-DC and DC-AC Converters for Large-Scale Integration of Renewable Power Generation". Sustainability 12, n. 20 (13 ottobre 2020): 8440. http://dx.doi.org/10.3390/su12208440.

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Abstract (sommario):

Numerous research studies on high capacity DC-DC converters have been put forward in recent years, targeting multi-terminal medium-voltage direct current (MVDC) and high-voltage direct current (HVDC) systems, in which renewable power plants can be integrated at both medium-voltage (MV) and high-voltage (HV) DC and AC terminals; hence, leading to complex hybrid AC-DC systems. Multi-port converters (MPCs) offer the means to promote and accelerate renewable energy and smart grids applications due to their increased control flexibilities. In this paper, a family of MPCs is proposed in order to act as a hybrid hub at critical nodes of complex multi-terminal MVDC and HVDC grids. The proposed MPCs provide several controllable DC voltages from constant or variable DC or AC voltage sources. The theoretical analysis and operation scenarios of the proposed MPC are discussed and validated with the aid of MATLAB-SIMULINK simulations, and further corroborated using experimental results from scale down prototype. Theoretical analysis and discussions, quantitative simulations, and experimental results show that the MPCs offer high degree of control flexibilities during normal operation, including the capacity to reroute active or DC power flow between any arbitrary AC and DC terminals, and through a particular sub-converter with sufficient precision. Critical discussions of the experimental results conclude that the DC fault responses of the MPCs vary with the topology of the converter adopted in the sub-converters. It has been established that a DC fault at high-voltage DC terminal exposes sub-converters 1 and 2 to extremely high currents; therefore, converters with DC fault current control capability are required to decouple the healthy sub-converters from the faulted one and their respective fault dynamics. On the other hand, a DC fault at the low-voltage DC terminal exposes the healthy upper sub-converter to excessive voltage stresses; therefore, sub-converters with bipolar cells, which possess the capacity for controlled operation with variable and reduced DC voltage over wide range are required. In both fault causes, continued operation without interruption to power flow during DC fault is not possible due to excessive over-current or over-voltage during fault period; however, it is possible to minimize the interruption. The above findings and contributions of this work have been further elaborated in the conclusions.

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48

Yang, Miao, Baixue Zhang, Yun Cao, Fengfeng Sun e Weifeng Sun. "A voltage-mode DC—DC buck converter with fast output voltage-tracking speed and wide output voltage range". Journal of Semiconductors 35, n. 5 (maggio 2014): 055005. http://dx.doi.org/10.1088/1674-4926/35/5/055005.

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49

Herisajani, Herisajani, Nasrul Harun e Dasrul Yunus. "PERENCANAAN INVERTER PWM SATU FASA UNTUK PENGATURAN TEGANGAN OUTPUT PEMBANGKIT TENAGA ANGIN". Elektron : Jurnal Ilmiah 1, n. 1 (10 settembre 2009): 38–48. http://dx.doi.org/10.30630/eji.1.1.8.

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Abstract (sommario):

Inverter as power circuit is used to change DC to AC voltage. In general, DC which can be changed by inverter is DC voltage with constant value, for example battery or accu. Inverter is design to changed non constant DC voltage which produced by wind power generator become constant ac voltage. In changing process from non constant DC voltage to constant AC voltage is controlled by microcontroller to simplify the design of inverter.

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50

Gupta, Sunil Kumar, H. P. Tiwari e Ramesh Pachar. "Estimation of DC Voltage Storage Requirements for Dynamic Voltage Compensation on Distribution Network using DVR". International Journal of Engineering and Technology 2, n. 1 (2010): 124–31. http://dx.doi.org/10.7763/ijet.2010.v2.110.

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