scholarly journals Analytical and experimental discussion of a circuit-based model for compact fluorescent lamps in a 60Hz power grid

2015 ◽  
Vol 35 (1Sup) ◽  
pp. 89-97 ◽  
Author(s):  
Gabriel Alexis Malagon ◽  
Jeisson Bello Peña ◽  
Gabriel Ordóñez Plata ◽  
Cesar Duarte Gualdrón

<p class="MsoNormal" style="text-align: justify;"><span style="font-family: 'Century Gothic', sans-serif; font-size: 8pt; letter-spacing: -0.1pt;"><span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">This article presents an analysis and discussion on the performance of a circuit-based model for Compact Fluorescent Lamps (CFL) <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">in a 120V 60Hz power grid. This model is proposed and validated in previous scientific literature for CFLs in 230V 50Hz systems. <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">Nevertheless, the derivation of this model is not straightforward to follow and its performance in 120V 60Hz systems is a matter of <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">research work. In this paper, the analytical derivation of this CFL model is presented in detail and its performance is discussed when <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">predicting the current of a CFL designed to operate in a 120V 60Hz electrical system. The derived model is separately implemented <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">in both MATLAB<span style="font-family: OptimaLTStd; font-size: 5pt; color: #231f20; font-style: normal; font-variant: normal;">® <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">and ATP-EMTP<span style="font-family: OptimaLTStd; font-size: 5pt; color: #231f20; font-style: normal; font-variant: normal;">® <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">software using two different sets of parameters previously proposed for 230V 50Hz CFLs. These <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">simulation results are compared against laboratory measurements using a programmable AC voltage source. The measurements <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">and simulations considered seven CFLs 110/127V 60Hz with different power ratings supplied by a sinusoidal (not distorted) voltage <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">source. The simulations under these conditions do not properly predict the current measurements and therefore the set of parameters <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">and/or the model itself need to be adjusted for 120V 60Hz power grids.</span></span></span></span></span></span></span></span></span><br style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" /></span></span></span></span></span></span></p>

Author(s):  
Chadwick Carreto Arellano ◽  
Verónica Fabiola Torres Chávez ◽  
Felicidad del Socorro Bonilla Gómez ◽  
Ángel López Martínez ◽  
Rosario Lucero Cavazos Salazar ◽  
...  

<span style="color: #533200; font-family: Montserrat; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: justify; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">Las nueve instituciones de la Red de Bachilleratos Universitarios Públicos a distancia presentan las acciones que desde sus áreas de educación a distancia se diseñaron e implementaron en los primeros meses de la pandemia COVID-19 para apoyar a los respectivos programas académicos de modalidad presencial. Se detallan acciones, programas y estrategias, así como resultados hasta julio de 2020.</span>


Author(s):  
Rafael Morales
Keyword(s):  

<span style="color: #533200; font-family: Montserrat; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: justify; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">Se hace una reseña del libro<span> </span></span><em style="box-sizing: border-box; color: #533200; font-family: Montserrat; font-size: 16px; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: justify; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">The Game</em><span style="color: #533200; font-family: Montserrat; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: justify; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;"><span> </span>de Alessandro Baricco (2019), en el cual el autor ofrece una explicación de la Revolución Digital como producto de una insurrección contra la cultura que llevó a los horrores del siglo XX y a la amenaza de desaparición de la humanidad. Se hace una breve presentación de las ideas de Baricco, así como de las implicaciones que observa para la escuela.</span>


Energy ◽  
2009 ◽  
Vol 34 (9) ◽  
pp. 1355-1363 ◽  
Author(s):  
J. Trifunovic ◽  
J. Mikulovic ◽  
Z. Djurisic ◽  
M. Djuric ◽  
M. Kostic

2008 ◽  
Vol 17 (03) ◽  
pp. 439-446
Author(s):  
HAOHANG SU ◽  
YIMEN ZHANG ◽  
YUMING ZHANG ◽  
JINCAI MAN

An improved method is proposed based on compressed and Krylov-subspace iterative approaches to perform efficient static and transient simulations for large-scale power grid circuits. It is implemented with CG and BiCGStab algorithms and an excellent result has been obtained. Extensive experimental results on large-scale power grid circuits show that the present method is over 200 times faster than SPICE3 and around 10–20 times faster than ICCG method in transient simulations. Furthermore, the presented algorithm saves the memory usage over 95% of SPICE3 and 75% of ICCG method, respectively while the accuracy is not compromised.


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