• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    System and control method in closed loop for heliostats in tower thermosolar power plants. The present invention relates to a system and method of control, in real time, of the orientation of the heliostats mirrors belonging to a tower thermosolar. The system preferably comprises a module for generating modulated electromagnetic signals arranged in one or more heliostats, comprising a subsystem for modulating the amplitude of said signals; a detection and processing module arranged in the tower, comprising a subsystem for analyzing the modulation frequency of the amplitude of the electromagnetic signals, where said detection and processing module is located in the tower; and a communication module between the detection and processing module and one or more orientation subsystems of the heliostats. The invention provides a means of control guidance of reliable and simple implementation, which is applicable to plants with a high number of heliostats. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2558847A1
    申请号:ES201431026
    申请日:2014-07-08
    公开日:2016-02-09
    发明作者:Rafael Alonso Esteban；Carlos Heras Vila；Javier Pelayo Zueco；Íñigo Salinas Áriz；Jesús SUBÍAS DOMINGO
    申请人:Universidad de Zaragoza；
    IPC主号:
    专利说明:

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    that the tower receiver (21) is located, preferably outside the zone of said receiver
    (21) to avoid high temperatures. A horizontal row (19) of detectors that is placed on an axis parallel to the ground plane and another vertical row (20) of detectors that is placed on an axis perpendicular to the ground plane. The horizontal row detector (19) of detectors
    5 on which the vertical light line (12) strikes allows to know the misalignment of the heliostat in its azimuthal axis, while the detector of the vertical row (20) illuminated by the horizontal light line (11) determines its elevation misalignment .
    The generation of these two lines on the surface of the tower has two positive effects
    10 additional: on the one hand, the number of detectors is reduced with respect to a matrix array of detectors (2n for two-line configuration with n detectors per line, compared to n2 in a matrix-type configuration). On the other hand, the rows of detectors can be located outside the receiver area, which greatly simplifies the process of signal detection in terms of signal-to-noise ratio and problems with high
    15 temperatures
    The signal from each detector is preferably processed by Fourier transformation, which allows to obtain the frequency spectrum in reception. Since each heliostat (2) is labeled by its corresponding modulation frequency, it results
    20 Simple to identify which reflectors are affecting which detectors at all times.
    The communication system between the detection and processing module and the heliostat orientation motors (2) preferably comprises a wireless or cable communications network implemented by hardware / software and connection elements, which
    25 connect all the reflectors to the central tower. The system can take advantage of the same network that usually exists in solar power plants of this type to allow moving the heliostats remotely.
    The method of operation of the system preferably comprises the following 30 steps for the correct alignment of each heliostat (2): a) Generate the light signals at well defined frequencies for the heliostats (2) to be aligned using the modulators. b) Process by means of Fourier transform the signal of the detectors to calculate the azimuthal and elevation misalignment of the heliostats (2). C) Calculate the turn to be performed in each heliostat (2), according to its position in the field relative to the tower, so that the alignment is correct. d) Send orders 11 to the corresponding heliostat engines (2)
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    权利要求:
    Claims (1)
    [1]
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    同族专利:
    公开号 | 公开日
    ES2558847B1|2016-11-21|
    WO2016005620A1|2016-01-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4382434A|1979-04-16|1983-05-10|Milton Meckler|Prismatic tracking insolation collector|
    JPS59220610A|1983-05-30|1984-12-12|Toshiba Corp|Digital solar sensor|
    CA2729811A1|2008-07-03|2010-01-07|Greenfield Solar Corp.|Solar collector assembly|
    US20120279485A1|2011-05-03|2012-11-08|Google Inc.|Optical Signal Aiming for Heliostats|CN110849004B|2019-04-24|2021-02-02|浙江红谱科技股份有限公司|Control method of solar power generation system|
    法律状态:
    2016-11-21| FG2A| Definitive protection|Ref document number: 2558847 Country of ref document: ES Kind code of ref document: B1 Effective date: 20161121 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201431026A|ES2558847B1|2014-07-08|2014-07-08|SYSTEM AND CONTROL METHOD IN CLOSED LOOP FOR HELIOSTATOS IN TORRE THERMOSOLAR POWER STATIONS|ES201431026A| ES2558847B1|2014-07-08|2014-07-08|SYSTEM AND CONTROL METHOD IN CLOSED LOOP FOR HELIOSTATOS IN TORRE THERMOSOLAR POWER STATIONS|
    PCT/ES2015/000072| WO2016005620A1|2014-07-08|2015-06-08|Closed-loop control system and method for heliostats in solar power towers|
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