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Relevant bibliographies by topics / Uninterruptible Power Supply (UPS)

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Academic literature on the topic 'Uninterruptible Power Supply (UPS)'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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Journal articles on the topic "Uninterruptible Power Supply (UPS)"

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Aamir, Muhammad, Kafeel Ahmed Kalwar, and Saad Mekhilef. "Review: Uninterruptible Power Supply (UPS) system." Renewable and Sustainable Energy Reviews 58 (May 2016): 1395–410. http://dx.doi.org/10.1016/j.rser.2015.12.335.

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Dai, Xue Mei, and Yu Fu. "Suggestions in Ensuring the Safety of UPS Power Supply." Advanced Materials Research 461 (February 2012): 772–74. http://dx.doi.org/10.4028/www.scientific.net/amr.461.772.

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UPS (Uninterruptible Power System) is an energy storage device, and it is also a uninterruptible power supply which contains the inverter as the main component and works at the constant voltage constant frequency. it is playing an increasingly important role. Some suggestions are mainly proposed to ensure the safety of UPS power supply system in this paper, which make the UPS power supply system really play the role of escort in the practical application.

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Ashrafi, Bahram, and Mehdi Niroomand. "Novel Reduced Parts Online Uninterruptible Power Supply." Advances in Power Electronics 2012 (November 25, 2012): 1–8. http://dx.doi.org/10.1155/2012/502763.

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This paper presents design consideration and performance analysis of novel reduced parts online three-phase uninterruptible power supply (UPS) system. The proposed UPS system is based on reduced switch count dual bridge matrix converter. It employs only six power switches and results in reducing the cost of the system compared to conventional online UPS topologies, while achieving excellent performance. The performance of the proposed system is evaluated through simulation in terms of input/output waveforms quality and shows the viability of topology.

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Jiang, Maoh Chin, and Bing Jyun Shih. "A Single-Stage DC Uninterruptible Power Supply." Applied Mechanics and Materials 764-765 (May 2015): 466–70. http://dx.doi.org/10.4028/www.scientific.net/amm.764-765.466.

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A single-stage DC uninterruptible power supply (UPS) is proposed in this paper. Basically, the proposed converter is an integration result of a power factor correction circuit with a dc-to-dc converter to achieve simple hardware circuit, high efficiency, and low cost for extra UPS function. Under normal operation, a novel two-switch SEPIC converter operates as an ac to dc converter with sinusoidal input current, unity power factor, and low ripple dc output voltage, and as a battery charger if a battery is added. Since both the input boost supply and the output supply can be controlled independently, a fast transient response can be maintained at both the input for active current wave shaping and at the output for good output regulation. When the ac source is in an outage condition, the proposed converter functions as a dc-to-dc buck-boost converter; therefore, the desired dc output voltage can be provided. Finally, some experimental results are presented for verification.

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Lahyani, Amine, Pascal Venet, Abdessattar Guermazi, and Alaeddine Troudi. "Battery/Supercapacitors Combination in Uninterruptible Power Supply (UPS)." IEEE Transactions on Power Electronics 28, no. 4 (April 2013): 1509–22. http://dx.doi.org/10.1109/tpel.2012.2210736.

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Irwanto, Muhamad, M. Farreq, Sasongko P. Hadi, N. Gomesh, and Mohd Irwan Yusoff. "Photovoltaic Powered Uninterruptible Power Supply Using Microcontroller PIC16F628-I/P." Key Engineering Materials 594-595 (December 2013): 914–18. http://dx.doi.org/10.4028/www.scientific.net/kem.594-595.914.

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Uninterruptible power supply (UPS) sits between a power supply such as wall outlet and devices to prevent undesired feature that can occur within the power source such as outages, sags, surges and bad harmonics from the supply to avoid a negative impact on the devices. This paper presents a photovoltaic (PV) powered UPS using microcontroller PIC16F628A-I/P. It is a standby UPS whereas if the main power source fails to supply power to loads, a battery powered inverter turns on to continue supplying power. The battery is charged by the PV using solar charger and transfer switch controlled by the microcontroller. The UPS was tested to a load of 240 V, 20 W AC aquarium water pump. The test result shows that the UPS perform well, when the main power source fails, the battery could power inverter and the microcontroller controls the transfer switch of the UPS inverter and the main power source.

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Jahmeerbacus, M. I., and K. M. S. Soyjaudah. "Design of a Microcontroller-Based Passive Standby Uninterruptible Power Supply." International Journal of Electrical Engineering & Education 38, no. 4 (October 2001): 330–37. http://dx.doi.org/10.7227/ijeee.38.4.6.

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This paper describes the design of a microcontroller-based passive standby Uninterruptible Power Supply (UPS), where the student applies a top-down systems approach to produce a working system. Such a project involves hardware-software co-design for realizing the relatively large number of detection, protection and control functions within the UPS.

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Han, Chun Juan, Fa Cheng Rui, Sheng Liu, and Shou Qin Tang. "Information Technology in Circuit Design of On-Line UPS." Advanced Materials Research 886 (January 2014): 505–8. http://dx.doi.org/10.4028/www.scientific.net/amr.886.505.

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Uninterruptible Power Supply plays an important role in critical load, such as: computer, communication system and hospital. They can provide reliable and pure power supply for loads neither power good or not. With the best performance, on- Line UPS provider most sufficient protection for loads power failure in various UPS. With the continuous development of power electronics technology and information industry, this article design a high quality and reliability UPS to meet modern development of science and technology.

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Hastings, Waylon, and Idan Shalev. "Uninterruptible Power Supply Improves Precision of Telomere Length Measurement via qPCR." Innovation in Aging 4, Supplement_1 (December 1, 2020): 250. http://dx.doi.org/10.1093/geroni/igaa057.806.

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Abstract Epidemiological literature has produced robust associations between telomere length (TL) and health, wherein individuals with shorter TL are at increased risk for chronic disease and death. Even so, technical challenges associated with TL measurement have led some to question their utility as a biomarker of aging. Several pre-analytical factors influence TL assessment via qPCR including tissue source, sample storage, and DNA extraction method. Additional work has investigated how conditions within the PCR run (e.g. mastermix reagents) influences precision and reproducibility of TL measurements. However, the impact of power supply remains unclear. Momentary fluctuations in power supply can affect the functioning of high-performance electronics, including real-time thermocylers. These fluctuations can be mitigated by using an uninterruptible power source (UPS), an electronic apparatus capable of supplying constant, uninterrupted voltage to high-performance electronics. The current study investigated how using a UPS influenced TL assessment via qPCR. Standard deviation and coefficient of variation across replicates were compared for samples assessed with or without the use of a UPS. Samples run with a UPS had significantly lower standard deviation (p<0.001) and coefficient of variation (p=0.002) than those run without a UPS. Notably, neither the efficiency of exponential amplification (p=0.674) nor the standard curve R2 (p=0.638) varied as a function of UPS status. Thus, UPS status decreases variability within sample replicates while maintaining the overall quality of the qPCR assay. *The work presented was supported by the Telomere Research Network, an NIH-sponsored working-group recently established to coordinate best practices for measuring telomere length in population-based research.

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Xiao, Juan. "The Design of Marine 24 V DC Uninterruptible Power Supply." Applied Mechanics and Materials 536-537 (April 2014): 1537–41. http://dx.doi.org/10.4028/www.scientific.net/amm.536-537.1537.

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A marine DC uninterruptible power supply is designed. The UPS adopts PIC16C73 single-chip microcomputer to realize the battery management. Both AC power and battery power, the output voltage stability in 23 to 24 v.Via advanced battery management, two sections of charging, equalized charging and floating charging can automatic convert and the DCUPS has many functions of protection, such as over-voltage protection ,under voltage protection and short circuit protection.The actual use on the ship and other occasions showed that the DCUPS is convenient and practical,and is more simple, reliable and longer emergency power supply than the traditional AC-DC uninterruptible power supply management scheme.

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Dissertations / Theses on the topic "Uninterruptible Power Supply (UPS)"

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Rahmat, Mohd Khairil. "Methods for reliability analysis of uninterruptible power supply (UPS) system." Thesis, University of Strathclyde, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.444418.

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Schmidt, Uwe. "Uninterruptible power supply system using a dual converter in quasi-resonant mode." Thesis, Brunel University, 1995. http://bura.brunel.ac.uk/handle/2438/5410.

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Uninterruptible Power Supply (UPS) systems have become a standard to protect electronic devices such as servers and host computers. Also, the energy supply of whole buildings is linked with large UPS systems to ensure a steady power flow. Two system configurations are widely used which differ in price and their ability to protect very sensitive load. This thesis illustrates an analytical examination of all existing systems and concludes with the finding of new configurations with increased efficiency and reduced costs. A dual converter is proposed as the heart of the new UPS system. This converter links the necessary two sources of the UPS through a common transformer. The transformer operates at a high frequency which is enabled due to the resonant switching technique used. The results of this paper were achieved using mathematical analysis, electrical and electro-magnetic simulation as well as by experiments carried out on the self designed circuit boards in the laboratory. These boards were built in a modular way to enable series testing and thereby optimise the dimensioning of the system.

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Höglund, Jonatan. "Redundans vid manöver med hjälp av UPSpå elnätet." Thesis, Linnéuniversitetet, Sjöfartshögskolan (SJÖ), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-50407.

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Uys, Jacobus Johannes. "Dynamic digital control schemes for three-phase UPS inverters." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52810.

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Thesis (MScEng)--University of Stellenbosch, 2002.
ENGLISH ABSTRACT: This thesis presents the design and implementation of a voltage controller for an Uninterruptible Power Supply (UPS) Inverter. The inverter is capable of producing a nearly sinusoidal output voltage waveform, thereby keeping the Total Harmonic Distortion (THD) to a minimum. Digital controllers introduce a time delay in the control law that causes system instability. Various control techniques, which includes Pade approximations and system augmentation, are investigated to eliminate the effect of the time delay. These controllers employ classical control as well as modem control techniques. The selection of the various control parameters is verified by mathematical equations. A load-disturbance compensation scheme, implementing feed-forward and gain scheduling, is also developed to improve voltage distortion when varying loads, such as non-linear loads, are connected to the system. It is shown that the constructed pulse-width modulated (PWM) control scheme can achieve fast dynamic response as well as a low THD.
AFRIKAANSE OPSOMMING: Hierdie verhandeling ondersoek die ontwerp en implementering van 'n spanningsbeheerder vir 'n ononderbroke kragtoevoer omsetter. Die stelsel produseer 'n uittree spannigsgolfvorm met 'n lae Totale Harmoniese Distorisie (THD). Digital beheerders veroorsaak 'n tydvertraging in die beheerwet wat stelsel onstabiliteit kan veroorsaak. Verskeie beheertegnieke wat gebaseer is op die Pade benaderings van die tydvertraging en stelsel aanpassings, is ondersoek. Hierdie beheerders maak gebruik van klassieke en moderne beheertegnieke. Die seleksie van die verskeie beheerderveranderlikes word gestaaf deur wiskundige vergelykings. Spannigsvervorming word tot 'n minimum beperk deur gebruik te maak van 'n lasveranderings-kompensasietegniek wat onderskeidelik vorentoe-voer en aanwins skedulering implementeer. Verder word daar bewys dat die pulswydte modulasie (PWM) beheerskema vinnige dinamiese gedrag asook 'n lae THD bewerkstellig.

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SANTOS, Gustavo Maciel dos. "Estudo do acoplamento de grupos Motor-Gerador com Uninterruptible Power Supply aplicando Wavelets e Redes Neurais Artificiais." Universidade Federal de Pernambuco, 2011. https://repositorio.ufpe.br/handle/123456789/5320.

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Made available in DSpace on 2014-06-12T17:38:05Z (GMT). No. of bitstreams: 2 arquivo5616_1.pdf: 1821861 bytes, checksum: db782c77f5cdfb78835512d49e7f6892 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2011
Com a sociedade globalizada e a evolução da informática, o conceito de horário comercial não é mais simples. Transações bancárias, negociações na bolsa de valores e compras pelo computador ocorrem em qualquer horário e as empresas precisam garantir a disponibilidade de seus serviços sempre. Para garantir o fornecimento ininterrupto de energia para estes sistemas de informações são utilizados grupos motorgerador (GMG) e uninterruptible power supply (UPS). Quando há dificuldade de acoplamento entre os dois equipamentos, na prática, os projetistas superdimensionam o GMG em relação ao UPS sem embasamento teórico para esta ação. Este estudo propõe apresentar a correlação entre os dados de placa desses equipamentos e o distúrbio de tensão entre eles para proporcionar uma maior segurança no dimensionamento de sistemas com UPS e GMG. A metodologia desse estudo propõe o uso de Redes Neurais Artificiais (RNA s) para descrever esta correlação e transformada wavelet para destacar os distúrbios medidos e auxiliar na convergência da RNA em seu treinamento. Os resultados obtidos com as redes desenvolvidas neste trabalho sugerem que o menor distúrbio no sinal, obtido devido ao acoplamento de UPS e GMG, ocorrerá se as potências dos equipamentos (dados de placa) forem próximas, independente do nível de carregamento do sistema. À medida que esta relação se distancia do valor unitário, a perturbação aumenta e um UPS com potência menor que o GMG contribui mais com a distorção do sinal do que ao contrário

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Cetinkaya, Suleyman. "Repetitive Control Of A Three-phase Uninterruptible Power Supply With Isolation Transformer." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608150/index.pdf.

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A repetitive control method for output voltage control of a three phase uninterruptible power supply (UPS) with isolation transformer is investigated. In the method voltage control loop is employed in the stationary dq frame. The controller eliminates the periodic errors on the output voltages due to inverter voltage nonlinearity and load disturbances. The controller design and implementation details are given. The controller is implemented on a 5-kVA UPS prototype which is constructed in laboratory. Linear and nonlinear loads for balanced and unbalanced load operating conditions are considered. The steady-state and dynamic performance of the control method are investigated in detail. The theory of the control strategy is verified by means of simulations and experiments.

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Kamran, Farrukh. "A new UPS topology and deadbeat control techniques for improved utility interface compatibility." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/15773.

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Milad, Muftah A. "UPS system : how current and future technologies can improve energy efficiency in data centres." Thesis, Brunel University, 2017. http://bura.brunel.ac.uk/handle/2438/14664.

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A data centre can consist of a large group of networked servers and associated power distribution, networking, and cooling equipment, all that application consumes enormous amounts of energy as a small city, which are driving to a significant increase in energy inefficiency problems in data centre, and high operational costs. Also the massive amounts of computation power contained in these systems results in many interesting distributed systems and resource management problems. In recent years, research and technologies in electrical engineering and computer science have made fast progress in various fields. One of the most important fields is the energy consumption in data centre. In recent years the energy consumption of electronic devices in data centre, as reported by. Choa, Limb and Kimb, nearly 30000000 kWh of power in a year, may consume by a large data centre and cost its operator around £3,000,000 for electricity alone. Some of the UK sites consume more than this. In the UK data centre the total power required are amid 2-3TWh per year. Energy is the largest single component of operating costs for data centres, varying from 25-60%. Agreeing to many types of research, one of the largest losses and causes of data centre energy inefficiency power distribution is from the uninterruptible power supply (UPS). So a detailed study characterized the efficiencies of various types of UPSs under a variety of operating conditions, proposed an efficiency label for UPSs, also investigate challenges related to data centre efficiency, and how all new technologies can be used to simplify deployment, improve resource efficiency, and saving cost. Data centre energy consumption is an important and increasing concern for data centre managers and operators. Inefficient UPS systems can contribute to this concern with 15 percent or more of utility input going to electrical waste within the UPS itself. For that reason, maximizing energy efficiencies, and reduce the power consumption in a data centre has become an important issue in saving costs and reducing carbon footprint, and it is necessary to reduce the operational costs. This study attempts to answer the question of how can future UPS topology and technology improve the efficiency and reduce the cost of data centre. In order to study the impact of different UPS technologies and their operating efficiencies. A model for a medium size data centre is developed, and load schedules and worked diagrams were created to examine in detail and test the components of each of the UPS system topologies. The electrical infrastructure topology to be adopted is configured to ‘2N’ and ‘N+1’ redundancy configuration for each UPS systems technologies, where ‘N’ stands for the number of UPS modules that are required to supply power to data centre. This work done at RED engineering designs company. They are professionals for designing and construction of a new Tier III and Tier IV data centres. The aim of this work is to provide data centre managers with a clearer understanding of key factors and considerations involved in selecting the right UPS to meet present and future requirements.

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Oliveira, Lincoln Moura de. "A New Conception of Multilevel Inverter for UPS Application." Universidade Federal do CearÃ, 2009. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11289.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico
This work deals with the theoretical analysis, design methodology and laboratory implementation of a 3kVA on-line mode Uninterruptible Power Supply (UPS) composed by a multilevel inverter based on a transformer with multiple secondaries and an active power factor correction input stage composed by a diode rectifier in series with a boost converter.The main motivation for this study is to assess the benefits of multilevel inverters in low power (<10kVA) applications. A 3kVA Uninterruptible Power Supply (UPS) with output and input voltage of 220V and 60Hz, has been implemented. Simulation and experimental results for a single phase prototype are conducted to validate the proposed idea. The utilization of low frequency operation inverters promotes low EMI, lower switches stresses, very low commutation losses and consequently higher efficiency. The multilevel converter here used isolates the load from the grid due to the multi-windings transformer intrinsic to the topology. The on-line mode of the UPS (no battery mode) has been implemented. Simulation and experimental results for a single-phase prototype are presented to validate the proposed converter. The UPS presented an efficiency of 90%
Este trabalho apresenta a anÃlise teÃrica, metodologia de projeto e implementaÃÃo do modo rede de um sistema ininterrupto de energia (UPS) na configuraÃÃo on-line, utilizando um inversor multinÃvel e um prÃ-regulador com correÃÃo de fator de potÃncia. O inversor baseia-se num transformador que opera em baixa freqÃÃncia com mÃltiplos secundÃrios isolados, em que a tensÃo multinÃvel na saÃda Ã formada atravÃs da combinaÃÃo dos enrolamentos secundÃrios do transformador por chaves de potÃncia estÃticas operando em baixa freqÃÃncia. O prÃ-regulador Ã composto por uma ponte completa de diodos em sÃrie com um conversor boost. A motivaÃÃo para este estudo consiste em avaliar os benefÃcios da utilizaÃÃo de inversores multinÃveis em baixas potÃncias (<10kVA) em UPS, com Ãnfase nos rendimentos das topologias. A utilizaÃÃo do inversor multinÃvel operando em baixa freqÃÃncia garante menores Ãndices de EMI, menores esforÃos de tensÃo e corrente nos semicondutores da estrutura, desprezÃveis perdas por comutaÃÃo e consequentemente maior rendimento. A estrutura utilizada possui ainda a caracterÃstica de garantir isolamento galvÃnico da rede elÃtrica com a carga atravÃs da utilizaÃÃo do transformador intrÃnseco desta topologia. O prÃregulador possui uma topologia que garante facilidade de implementaÃÃo e alto rendimento. O modo rede de um sistema ininterrupto de energia de 3kVA com tensÃo de entrada e saÃda de 220V e 60Hz, foi implementado. As simulaÃÃes e os resultados experimentais para um protÃtipo monofÃsico sÃo apresentados para a validaÃÃo da estrutura. O rendimento mÃximo obtido para o protÃtipo foi de 90%.

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Jacobsson, Erik. "Dimensionering av UPS-system och generatorer för reservkraftsystem på sjukhus och flygplatser." Thesis, Karlstads universitet, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-69399.

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Sjukhus och flygplatser är precis som resten av samhället, beroende av el. Med dagens teknik är sjukhus och flygplatser högteknologiska ochväldigt störningskänsliga för elbortfall,vilket gör det viktigt att ha en stabil och säker kraftförsörjning utan avbrott. Ett avbrott i strömförsörjningen kan orsaka allvarliga,till och med livsfarliga konsekvenser. Att säkerställa ett bra och redundant reservkraftsystemär väsentligt för sjukhusen och flygplatserna. Syftet med studien var att undersöka samt ta fram reservkraftsystem med redundansförsjukhus och flygplatser. Under arbetets gång har litteraturstudie om generatorer och UPS-system (uninterruptible power supply) gjorts samt intervjuer med experter inom båda ämnena. Resultat visar de fundamentala delarna som är viktiga att ta hänsyn till vid dimensionering av reservkraftsystem. Men det visar också på att det finns många faktorersom spelar in vid dimensionering av systemen, vilket leder till att alla system ser olika ut och det finns inte riktigtnågon specifik mall att följa.
Hospitals and airports are just like the rest of society, dependent onelectricity. With today's technology, hospitals and airports are highly technological and highly sensitiveto electricity loss. Thatmakes it important to have stable and secure power supply without interruptions. An interruption of power supply can cause serious even fatal consequences. Ensuring a good and redundant reserve power system is essential for hospitals and airports. The purpose of the study was to investigate and provide good redundant solutions for reserve systems in hospitals and airports. During the course of the thesis, literature studies ofgenerators and UPS (uninterruptible power supply) systems have been conducted as well as interviews with experts in both subjects.Results show the fundamental aspects that should be taken into account when dimensioning reserve power systems. But it also shows that there are many aspects that affectthe system dimensioning, which means that all systems look different and there is no specific template to follow.

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Books on the topic "Uninterruptible Power Supply (UPS)"

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Skinner, A. J. Four quadrant inverter technologies for high frequency UPS. Leatherhead, Surrey, England: ERA Technology, 1992.

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Hester, Edward, Diana E. Kole, and Dawn J. Trebec. Uninterruptible power supplies (UPS) & other power protection systems. Cleveland: Freedonia Group, 2001.

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King, Alexander C. Uninterruptible power supplies and standby power systems. New York: McGraw-Hill, 2003.

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Abdolhosein, Nasiri, and Bekiarov Stoyan B, eds. Uninterruptible power supplies and active filters. Boca Raton: CRC Press, 2005.

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Griffith, David C. Uninterruptible power supplies: Power conditioners for critical equipment. New York: M. Dekker, 1989.

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Emadi, Ali. Uninterruptible power supplies and active filters. Boca Raton, Fla: CRC Press, 2005.

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Jun shi tong xin wang dian yuan xi tong ji wei hu. Beijing Shi: Dian zi gong ye chu ban she, 2009.

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Bourne, Marlene Avis. The changing electric/natural gas business. Norwalk, CT: Business Communications Co., 1997.

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Uninterruptible power supplies (UPS). Bracknell: Building Services Research and Information Association, 1988.

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Building services Research and Information Association., ed. Uninterruptible power supply. 2nd ed. Bracknell: Building Services Research and Information Association, 1995.

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Book chapters on the topic "Uninterruptible Power Supply (UPS)"

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Paul, Hartmut. "Uninterruptible Power Supply (UPS)." In Hydrogen and Fuel Cell, 145–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-44972-1_7.

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Loeffler, Chris, and Ed Spears. "Uninterruptible Power Supply System." In Data Center Handbook, 495–521. Hoboken, NJ: John Wiley & Sons, Inc, 2014. http://dx.doi.org/10.1002/9781118937563.ch27.

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Gumhalter, Hans. "Static UPS Systems." In Power Supply in Telecommunications, 280–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-78403-3_14.

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Kumari, Rubi, Shreya Shree Das, and Subhojit Roy. "Integration of Solar and Wind Energy for Uninterruptible Power Supply." In Learning and Analytics in Intelligent Systems, 173–87. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42363-6_21.

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Jalili-Kharaajoo, Mahdi, Behzad Moshiri, Karam Shabani, and Hassan Ebrahimirad. "Genetic Algorithm Based Parameter Tuning of Adaptive LQR-Repetitive Controllers with Application to Uninterruptible Power Supply Systems." In Innovations in Applied Artificial Intelligence, 583–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-24677-0_60.

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Kim, R. Young-Chul, Bok-Gyu Joo, Kyung-Chul Kim, and Byung-kook Joen. "Scenario Based Testing & Test Plan Metrics Based on a Use Case Approach for Real Time UPS (Uninterruptible Power System)." In Computational Science and Its Applications — ICCSA 2003, 646–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/3-540-44843-8_71.

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"Shipboard UPS (Uninterruptible Power Supply)." In Handbook to IEEE Standard 45TM: A Guide to Electrical Installations on Shipboard, 305–10. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118098844.ch26.

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Chandrakar, Ruchi, Ruchita Nale, and Monalisa Biswal. "Uninterrupted Power Supply to Micro-Grid During Islanding." In Handbook of Research on Smart Power System Operation and Control, 96–126. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8030-0.ch004.

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The major purpose of uninterruptible power supply (UPS) systems is to supply regulated sinusoidal voltage at constant frequency and amplitude. UPS systems are gaining much popularity as a means of providing clean and continuous electricity to critical loads during any disturbances in main grid. Modern equipment is sensitive to power fluctuation and requires back up power supply for optimal performance. This chapter introduces a set of possible solutions so that uninterrupted power supply can be provided to emergency feeders and critical loads such as hospitals and communication systems. Different network configurations can be applied to micro-grid system for obtaining an uninterrupted power supply. Various hybrid energy and modern UPS systems for micro-grid along with their control techniques have been elucidated. A comparative assessment of all UPS technologies on the basis of cost, performance, and efficiency of the system has been presented.

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Makdisie, Carlo Joseph, and Marah Fadl Mariam. "Applied Power Electronics." In Handbook of Research on New Solutions and Technologies in Electrical Distribution Networks, 322–61. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1230-2.ch017.

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Power Electronics is the study of switching electronic devices and circuits to convert and control the flow of electrical energy. Power Electronics is the basic technology of switching power supplies, power converters, power inverters, motor drives, and motor soft starters. Inverters are devices that transform DC input into fixed AC output through changing the trigger angle, in the ideal statues the output wave form is perfect sine wave, however in the practical case it has some higher harmonics that need to be reduced. Inverters are an important part of UPS systems, fully explained in this chapter, where UPSs are uninterruptible Power Supply in which the inverters are included as an essential part, that can provide emergency power to a load when the input power source or main power source fails.

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Adamson, Kerry-Ann. "Uninterruptible power supply/backup." In Stationary Fuel Cells, 59–75. Elsevier, 2007. http://dx.doi.org/10.1016/b978-008045118-3.50010-8.

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Conference papers on the topic "Uninterruptible Power Supply (UPS)"

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Rahmat, Mohd Khairil, Slobodan Jovanovic, and Kwok Lun Lo. "Uninterruptible Power Supply (UPS) system configurations: Reliability comparison." In 2010 IEEE International Conference on Power and Energy (PECon). IEEE, 2010. http://dx.doi.org/10.1109/pecon.2010.5697695.

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Wang, Hao, Dehong Xu, Binci Xu, Haijin Li, and Ye Zhu. "A Dual-Energy-Source Uninterruptible Power Supply (UPS)." In 2018 International Power Electronics Conference (IPEC-Niigata 2018-ECCE Asia). IEEE, 2018. http://dx.doi.org/10.23919/ipec.2018.8507541.

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bin Daud, Mohd Zaki, and Lee Kar Kuan. "Uninterruptible Power Supply (UPS) Using Double Conversion Technique." In 2020 IEEE International Conference on Power and Energy (PECon). IEEE, 2020. http://dx.doi.org/10.1109/pecon48942.2020.9314492.

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Xu, Dehong, Wenping Zhang, Haijin Li, and Min Chen. "A fuel cell uninterruptible power supply (FC-UPS) system." In 2013 5th International Conference on Power Electronics Systems and Applications (PESA) New Energy Conversion for the 21st Century. IEEE, 2013. http://dx.doi.org/10.1109/pesa.2013.6828237.

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Hyun-Chul Jung and Dong-Suk Hyun. "IHTS development for Uninterruptible Power Supply at UPS fault." In 2007 7th Internatonal Conference on Power Electronics (ICPE). IEEE, 2007. http://dx.doi.org/10.1109/icpe.2007.4692524.

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Aamir, Muhammad, and Hee-Jun Kim. "Non-isolated single phase uninterruptible power supply (UPS) system." In ECCE Asia (ICPE 2011- ECCE Asia). IEEE, 2011. http://dx.doi.org/10.1109/icpe.2011.5944468.

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Ben Amira, Imen, Amine Lahyani, and Abdessattar Guermazi. "Fuel cell/supercapacitors combination in Uninterruptible Power Supply (UPS)." In 2015 16th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA). IEEE, 2015. http://dx.doi.org/10.1109/sta.2015.7505231.

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Buccella, C., M. G. Cimoroni, M. Tinari, and C. Cecati. "Seven-level cascaded inverters for Uninterruptible Power Supply (UPS) applications." In IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2019. http://dx.doi.org/10.1109/iecon.2019.8927243.

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Rahmat, Mohd Khairil, Ahmad Zaki Abdul Karim, and Mohd Nadjmi Mohd Salleh. "Sensitivity analysis of the AC uninterruptible power supply (UPS) reliability." In 2017 International Conference on Engineering Technology and Technopreneurship (ICE2T). IEEE, 2017. http://dx.doi.org/10.1109/ice2t.2017.8215976.

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Iyer, S. V., M. N. Belur, and M. C. Chandorkar. "Decentralized control of a line interactive Uninterruptible Power Supply (UPS)." In 2010 American Control Conference (ACC 2010). IEEE, 2010. http://dx.doi.org/10.1109/acc.2010.5530472.

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Reports on the topic "Uninterruptible Power Supply (UPS)"

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Blackaby, W. B. PUREX (SAMCONS) uninterruptible power supply (UPS) acceptance test procedure. Office of Scientific and Technical Information (OSTI), September 1997. http://dx.doi.org/10.2172/325203.

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Blackaby, W. B. PUREX SAMCONS uninterruptible power supply (UPS) acceptance test report. Office of Scientific and Technical Information (OSTI), October 1997. http://dx.doi.org/10.2172/344976.

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Northup, R. L., and R. E. Hammond. 2-KW DC Instantaneous Uninterruptible Power Supply Description. Fort Belvoir, VA: Defense Technical Information Center, November 1989. http://dx.doi.org/10.21236/ada216765.

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Uninterruptible power supply (UPS) systems. Office of Scientific and Technical Information (OSTI), April 1997. http://dx.doi.org/10.2172/495748.

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