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2. The SuperCam Instrument Suite on the NASA Mars 2020 Rover: Body Unit and Combined System Tests

Author

Wiens, Roger C., Maurice, Sylvestre, Robinson, Scott H., Nelson, Anthony E., Cais, Philippe, Bernardi, Pernelle, Newell, Raymond T., Clegg, Sam, Sharma, Shiv K., Storms, Steven, Deming, Jonathan, Beckman, Darrel, Ollila, Ann M., Gasnault, Olivier, Anderson, Ryan B., André, Yves, Michael Angel, S., Arana, Gorka, Auden, Elizabeth, Beck, Pierre, Becker, Joseph, Benzerara, Karim, Bernard, Sylvain, Beyssac, Olivier, Borges, Louis, Bousquet, Bruno, Boyd, Kerry, Caffrey, Michael, Carlson, Jeffrey, Castro, Kepa, Celis, Jorden, Chide, Baptiste, Clark, Kevin, Cloutis, Edward, Cordoba, Elizabeth C., Cousin, Agnes, Dale, Magdalena, Deflores, Lauren, Delapp, Dorothea, Deleuze, Muriel, Dirmyer, Matthew, Donny, Christophe, Dromart, Gilles, George Duran, M., Egan, Miles, Ervin, Joan, Fabre, Cecile, Fau, Amaury, Fischer, Woodward, Forni, Olivier, Fouchet, Thierry, Fresquez, Reuben, Frydenvang, Jens, Gasway, Denine, Gontijo, Ivair, Grotzinger, John, Jacob, Xavier, Jacquinod, Sophie, Johnson, Jeffrey R., Klisiewicz, Roberta A., Lake, James, Lanza, Nina, Laserna, Javier, Lasue, Jeremie, Le Mouélic, Stéphane, Legett, IV, Carey, Leveille, Richard, Lewin, Eric, Lopez-Reyes, Guillermo, Lorenz, Ralph, Lorigny, Eric, Love, Steven P., Lucero, Briana, Madariaga, Juan Manuel, Madsen, Morten, Madsen, Soren, Mangold, Nicolas, Manrique, Jose Antonio, Martinez, J. P., Martinez-Frias, Jesus, McCabe, Kevin P., McConnochie, Timothy H., McGlown, Justin M., McLennan, Scott M., Melikechi, Noureddine, Meslin, Pierre-Yves, Michel, John M., Mimoun, David, Misra, Anupam, Montagnac, Gilles, Montmessin, Franck, Mousset, Valerie, Murdoch, Naomi, Newsom, Horton, Ott, Logan A., Ousnamer, Zachary R., Pares, Laurent, Parot, Yann, Pawluczyk, Rafal, Glen Peterson, C., Pilleri, Paolo, Pinet, Patrick, Pont, Gabriel, Poulet, Francois, Provost, Cheryl, Quertier, Benjamin, Quinn, Heather, Rapin, William, Reess, Jean-Michel, Regan, Amy H., Reyes-Newell, Adriana L., Romano, Philip J., Royer, Clement, Rull, Fernando, Sandoval, Benigno, Sarrao, Joseph H., Sautter, Violaine, Schoppers, Marcel J., Schröder, Susanne, Seitz, Daniel, Shepherd, Terra, Sobron, Pablo, Dubois, Bruno, Sridhar, Vishnu, Toplis, Michael J., Torre-Fdez, Imanol, Trettel, Ian A., Underwood, Mark, Valdez, Andres, Valdez, Jacob, Venhaus, Dawn, and Willis, Peter

Published
2021
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4. The SuperCam Instrument Suite on the NASA Mars 2020 Rover:Body Unit and Combined System Tests

Author

Wiens, Roger C., Maurice, Sylvestre, Robinson, Scott H., Nelson, Anthony E., Cais, Philippe, Bernardi, Pernelle, Newell, Raymond T., Clegg, Sam, Sharma, Shiv K., Storms, Steven, Deming, Jonathan, Beckman, Darrel, Ollila, Ann M., Gasnault, Olivier, Anderson, Ryan B., André, Yves, Michael Angel, S., Arana, Gorka, Auden, Elizabeth, Beck, Pierre, Becker, Joseph, Benzerara, Karim, Bernard, Sylvain, Beyssac, Olivier, Borges, Louis, Bousquet, Bruno, Boyd, Kerry, Caffrey, Michael, Carlson, Jeffrey, Castro, Kepa, Celis, Jorden, Chide, Baptiste, Clark, Kevin, Cloutis, Edward, Cordoba, Elizabeth C., Cousin, Agnes, Dale, Magdalena, Deflores, Lauren, Delapp, Dorothea, Deleuze, Muriel, Dirmyer, Matthew, Donny, Christophe, Dromart, Gilles, George Duran, M., Egan, Miles, Ervin, Joan, Fabre, Cecile, Fau, Amaury, Fischer, Woodward, Forni, Olivier, Fouchet, Thierry, Fresquez, Reuben, Frydenvang, Jens, Gasway, Denine, Gontijo, Ivair, Grotzinger, John, Jacob, Xavier, Jacquinod, Sophie, Johnson, Jeffrey R., Klisiewicz, Roberta A., Lake, James, Lanza, Nina, Laserna, Javier, Lasue, Jeremie, Le Mouélic, Stéphane, Legett, Carey, Leveille, Richard, Lewin, Eric, Lopez-Reyes, Guillermo, Lorenz, Ralph, Lorigny, Eric, Love, Steven P., Lucero, Briana, Madariaga, Juan Manuel, Madsen, Morten, Madsen, Soren, Mangold, Nicolas, Manrique, Jose Antonio, Martinez, J. P., Martinez-Frias, Jesus, McCabe, Kevin P., McConnochie, Timothy H., McGlown, Justin M., McLennan, Scott M., Melikechi, Noureddine, Meslin, Pierre-Yves, Michel, John M., Mimoun, David, Misra, Anupam, Montagnac, Gilles, Montmessin, Franck, Mousset, Valerie, Murdoch, Naomi, Newsom, Horton, Ott, Logan A., Ousnamer, Zachary R., Pares, Laurent, Parot, Yann, Pawluczyk, Rafal, Glen Peterson, C., Pilleri, Paolo, Pinet, Patrick, Pont, Gabriel, Poulet, Francois, Provost, Cheryl, Quertier, Benjamin, Quinn, Heather, Rapin, William, Reess, Jean Michel, Regan, Amy H., Reyes-Newell, Adriana L., Romano, Philip J., Royer, Clement, Rull, Fernando, Sandoval, Benigno, Sarrao, Joseph H., Sautter, Violaine, Schoppers, Marcel J., Schröder, Susanne, Seitz, Daniel, Shepherd, Terra, Sobron, Pablo, Dubois, Bruno, Sridhar, Vishnu, Toplis, Michael J., Torre-Fdez, Imanol, Trettel, Ian A., Underwood, Mark, Valdez, Andres, Valdez, Jacob, Venhaus, Dawn, Willis, Peter, Wiens, Roger C., Maurice, Sylvestre, Robinson, Scott H., Nelson, Anthony E., Cais, Philippe, Bernardi, Pernelle, Newell, Raymond T., Clegg, Sam, Sharma, Shiv K., Storms, Steven, Deming, Jonathan, Beckman, Darrel, Ollila, Ann M., Gasnault, Olivier, Anderson, Ryan B., André, Yves, Michael Angel, S., Arana, Gorka, Auden, Elizabeth, Beck, Pierre, Becker, Joseph, Benzerara, Karim, Bernard, Sylvain, Beyssac, Olivier, Borges, Louis, Bousquet, Bruno, Boyd, Kerry, Caffrey, Michael, Carlson, Jeffrey, Castro, Kepa, Celis, Jorden, Chide, Baptiste, Clark, Kevin, Cloutis, Edward, Cordoba, Elizabeth C., Cousin, Agnes, Dale, Magdalena, Deflores, Lauren, Delapp, Dorothea, Deleuze, Muriel, Dirmyer, Matthew, Donny, Christophe, Dromart, Gilles, George Duran, M., Egan, Miles, Ervin, Joan, Fabre, Cecile, Fau, Amaury, Fischer, Woodward, Forni, Olivier, Fouchet, Thierry, Fresquez, Reuben, Frydenvang, Jens, Gasway, Denine, Gontijo, Ivair, Grotzinger, John, Jacob, Xavier, Jacquinod, Sophie, Johnson, Jeffrey R., Klisiewicz, Roberta A., Lake, James, Lanza, Nina, Laserna, Javier, Lasue, Jeremie, Le Mouélic, Stéphane, Legett, Carey, Leveille, Richard, Lewin, Eric, Lopez-Reyes, Guillermo, Lorenz, Ralph, Lorigny, Eric, Love, Steven P., Lucero, Briana, Madariaga, Juan Manuel, Madsen, Morten, Madsen, Soren, Mangold, Nicolas, Manrique, Jose Antonio, Martinez, J. P., Martinez-Frias, Jesus, McCabe, Kevin P., McConnochie, Timothy H., McGlown, Justin M., McLennan, Scott M., Melikechi, Noureddine, Meslin, Pierre-Yves, Michel, John M., Mimoun, David, Misra, Anupam, Montagnac, Gilles, Montmessin, Franck, Mousset, Valerie, Murdoch, Naomi, Newsom, Horton, Ott, Logan A., Ousnamer, Zachary R., Pares, Laurent, Parot, Yann, Pawluczyk, Rafal, Glen Peterson, C., Pilleri, Paolo, Pinet, Patrick, Pont, Gabriel, Poulet, Francois, Provost, Cheryl, Quertier, Benjamin, Quinn, Heather, Rapin, William, Reess, Jean Michel, Regan, Amy H., Reyes-Newell, Adriana L., Romano, Philip J., Royer, Clement, Rull, Fernando, Sandoval, Benigno, Sarrao, Joseph H., Sautter, Violaine, Schoppers, Marcel J., Schröder, Susanne, Seitz, Daniel, Shepherd, Terra, Sobron, Pablo, Dubois, Bruno, Sridhar, Vishnu, Toplis, Michael J., Torre-Fdez, Imanol, Trettel, Ian A., Underwood, Mark, Valdez, Andres, Valdez, Jacob, Venhaus, Dawn, and Willis, Peter

Abstract

The SuperCam instrument suite provides the Mars 2020 rover, Perseverance, with a number of versatile remote-sensing techniques that can be used at long distance as well as within the robotic-arm workspace. These include laser-induced breakdown spectroscopy (LIBS), remote time-resolved Raman and luminescence spectroscopies, and visible and infrared (VISIR; separately referred to as VIS and IR) reflectance spectroscopy. A remote micro-imager (RMI) provides high-resolution color context imaging, and a microphone can be used as a stand-alone tool for environmental studies or to determine physical properties of rocks and soils from shock waves of laser-produced plasmas. SuperCam is built in three parts: The mast unit (MU), consisting of the laser, telescope, RMI, IR spectrometer, and associated electronics, is described in a companion paper. The on-board calibration targets are described in another companion paper. Here we describe SuperCam’s body unit (BU) and testing of the integrated instrument. The BU, mounted inside the rover body, receives light from the MU via a 5.8 m optical fiber. The light is split into three wavelength bands by a demultiplexer, and is routed via fiber bundles to three optical spectrometers, two of which (UV and violet; 245–340 and 385–465 nm) are crossed Czerny-Turner reflection spectrometers, nearly identical to their counterparts on ChemCam. The third is a high-efficiency transmission spectrometer containing an optical intensifier capable of gating exposures to 100 ns or longer, with variable delay times relative to the laser pulse. This spectrometer covers 535–853 nm (105–7070cm−1 Raman shift relative to the 532 nm green laser beam) with 12cm−1 full-width at half-maximum peak resolution in the Raman fingerprint region. The BU electronics boards interface with the rover and control the instrument, returning data to the rover. Thermal systems maintain a warm temperature during cruise to Mars to avoid contamination on the optics, and cool t

Published
2021

5. A model-based controller for a three-phase four-wire shunt active filter with compensation of the neutral line current

Author

Escobar, Gerardo, Valdez, Andres A., Torres-Olguin, Raymundo E., and Martinez-Montejano, Misael F.

Subjects
Electric filters -- Design and construction, Electric controllers -- Design and construction, Adaptive control -- Equipment and supplies, Power controller, Business, Electronics, Electronics and electrical industries
Abstract

This paper presents a model-based controller for a three-phase four-wire shunt active filter, which uses a three-leg split-capacitor topology to implement the voltage source inverter. The controller is aimed to compensate reactive power and harmonic distortion in the general case of distorted and unbalanced source voltages and load currents, including distorted loads connected between a phase and the neutral line. In addition, the controller is able to compensate for the homopolar component of the load current, that is, the current flowing to the source via the neutral line can be considerably reduced without modifying the actual topology. The complete model in (fixed frame) [alpha][beta] [gamma]-coordinates is presented. Special attention is given to the homopolar component (referred here as the [gamma]-component) of the line current, source voltage and control input, which are instrumental for the control design purpose. Experimental results in a 2 kVA prototype are provided to illustrate the benefits of the proposed solution. Index Terms--Active filters, adaptive signal detection, reactive power control.

Published
2007

6. An adaptive control for UPS to compensate unbalance and harmonic distortion using a combined capacitor/load current sensing

Author

Escobar, G., Mattavelli, P., Stankovic, A.M., Valdez, Andres A., and Leyva-Ramos, Jesus

Subjects
Capacitors -- Usage, Uninterruptible power supply -- Analysis, UPS, Business, Computers, Electronics, Electronics and electrical industries
Abstract

This paper investigates the control of an uninterruptible power supply (UPS) using a combined measurement of capacitor and load currents in the same current sensor arrangement. The purpose of this combined measurement is, on one hand, to reach a similar performance as that obtained in the inductor current controller with load current feedforward and, on the other hand, to easily obtain an estimate of the inductor current for overcurrent protection capability. Based on this combined current measurement, a voltage controller based on resonant harmonic filters is investigated in order to compensate for unbalance and harmonic distortion on the load. Adaptation is included to cope with uncertainties in the system parameters. It is shown that after transformations the proposed controller gets a simple and practical form that includes a bank of resonant filters, which is in agreement with the internal model principle and corresponds to similar approaches proposed recently. The controller is based on a frequency-domain description of the periodic disturbances, which include both symmetric components, namely, the negative and positive sequence. Experimental results on the output stage of a three-phase three-wire UPS are presented to assess the performance of the proposed algorithm. Index Terms--Adaptive control, nonlinear systems, uninterruptible power supply (UPS) systems.

Published
2007

7. The SuperCam Instrument Suite on the NASA Mars 2020 Rover: Body Unit and Combined System Tests

Author

Wiens, Roger C., primary, Maurice, Sylvestre, additional, Robinson, Scott H., additional, Nelson, Anthony E., additional, Cais, Philippe, additional, Bernardi, Pernelle, additional, Newell, Raymond T., additional, Clegg, Sam, additional, Sharma, Shiv K., additional, Storms, Steven, additional, Deming, Jonathan, additional, Beckman, Darrel, additional, Ollila, Ann M., additional, Gasnault, Olivier, additional, Anderson, Ryan B., additional, André, Yves, additional, Michael Angel, S., additional, Arana, Gorka, additional, Auden, Elizabeth, additional, Beck, Pierre, additional, Becker, Joseph, additional, Benzerara, Karim, additional, Bernard, Sylvain, additional, Beyssac, Olivier, additional, Borges, Louis, additional, Bousquet, Bruno, additional, Boyd, Kerry, additional, Caffrey, Michael, additional, Carlson, Jeffrey, additional, Castro, Kepa, additional, Celis, Jorden, additional, Chide, Baptiste, additional, Clark, Kevin, additional, Cloutis, Edward, additional, Cordoba, Elizabeth C., additional, Cousin, Agnes, additional, Dale, Magdalena, additional, Deflores, Lauren, additional, Delapp, Dorothea, additional, Deleuze, Muriel, additional, Dirmyer, Matthew, additional, Donny, Christophe, additional, Dromart, Gilles, additional, George Duran, M., additional, Egan, Miles, additional, Ervin, Joan, additional, Fabre, Cecile, additional, Fau, Amaury, additional, Fischer, Woodward, additional, Forni, Olivier, additional, Fouchet, Thierry, additional, Fresquez, Reuben, additional, Frydenvang, Jens, additional, Gasway, Denine, additional, Gontijo, Ivair, additional, Grotzinger, John, additional, Jacob, Xavier, additional, Jacquinod, Sophie, additional, Johnson, Jeffrey R., additional, Klisiewicz, Roberta A., additional, Lake, James, additional, Lanza, Nina, additional, Laserna, Javier, additional, Lasue, Jeremie, additional, Le Mouélic, Stéphane, additional, Legett, Carey, additional, Leveille, Richard, additional, Lewin, Eric, additional, Lopez-Reyes, Guillermo, additional, Lorenz, Ralph, additional, Lorigny, Eric, additional, Love, Steven P., additional, Lucero, Briana, additional, Madariaga, Juan Manuel, additional, Madsen, Morten, additional, Madsen, Soren, additional, Mangold, Nicolas, additional, Manrique, Jose Antonio, additional, Martinez, J. P., additional, Martinez-Frias, Jesus, additional, McCabe, Kevin P., additional, McConnochie, Timothy H., additional, McGlown, Justin M., additional, McLennan, Scott M., additional, Melikechi, Noureddine, additional, Meslin, Pierre-Yves, additional, Michel, John M., additional, Mimoun, David, additional, Misra, Anupam, additional, Montagnac, Gilles, additional, Montmessin, Franck, additional, Mousset, Valerie, additional, Murdoch, Naomi, additional, Newsom, Horton, additional, Ott, Logan A., additional, Ousnamer, Zachary R., additional, Pares, Laurent, additional, Parot, Yann, additional, Pawluczyk, Rafal, additional, Glen Peterson, C., additional, Pilleri, Paolo, additional, Pinet, Patrick, additional, Pont, Gabriel, additional, Poulet, Francois, additional, Provost, Cheryl, additional, Quertier, Benjamin, additional, Quinn, Heather, additional, Rapin, William, additional, Reess, Jean-Michel, additional, Regan, Amy H., additional, Reyes-Newell, Adriana L., additional, Romano, Philip J., additional, Royer, Clement, additional, Rull, Fernando, additional, Sandoval, Benigno, additional, Sarrao, Joseph H., additional, Sautter, Violaine, additional, Schoppers, Marcel J., additional, Schröder, Susanne, additional, Seitz, Daniel, additional, Shepherd, Terra, additional, Sobron, Pablo, additional, Dubois, Bruno, additional, Sridhar, Vishnu, additional, Toplis, Michael J., additional, Torre-Fdez, Imanol, additional, Trettel, Ian A., additional, Underwood, Mark, additional, Valdez, Andres, additional, Valdez, Jacob, additional, Venhaus, Dawn, additional, and Willis, Peter, additional

Published
2020
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8. Selección de planta generadora en la compañía atunera salica del Ecuador s.a

Author

Ycaza Valdez, Andres and Patiño A, Mario

Abstract

En el presente trabajo se realizó un estudio técnico para la correcta selección de grupos de generación auxiliar que la compañía pesquera SALICA DEL ECUADOR S.A. debió adquirir para suplir su necesidad de falta de energía debido a los continuos cortes de energía eléctrica de la zona suministrada por la Empresa Eléctrica Peninsular. Se describen la planta industrial, sus instalaciones, sus procesos, su desarrollo y se analiza la situación crítica de cada área de producción y sus requerimientos energéticos con los cuales se pudieron establecer con todas las cargas y se determinó el nivel de potencia necesario que debían tener los equipos de generación. Este estudio se basó en el análisis de factor de coincidencia, producto de la medición de carga de todos los equipos de la planta en su capacidad máxima de funcionamiento, como son los motores, las luces, computadoras, UPS, etc. Se seleccionaron 4 Grupos Electrógenos Caterpillar modelo 3508 DITA de 600 KW c/u, tomando en consideración los siguientes factores tales como: nivel de ruido, sistema de enfriamiento, selección de cargas de todos los motores, etc. Finalmente, se realizó un informe económico, comparativo entre el costo de Kwh. que factura la Empresa Eléctrica “EMEPE” versus el proveído por los grupos electrógenos escogidos, en el cual se concluyó que lo más conveniente era la generación propia, no sólo porque implicaba un ahorro significativo (cerca de US $250,000.oo), sino que también eliminaba la principal deficiencia de la empresa, el mal servicio de EMEPE y la consecuente desventaja provocada por los cortes de energía y sus consecuencias en todos los sistemas de la empresa.

Published
2009

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