CN104364588A - Heliostat and photo-sensitive panel being operated at the same time - Google Patents
Heliostat and photo-sensitive panel being operated at the same time Download PDFInfo
- Publication number
- CN104364588A CN104364588A CN201380031593.1A CN201380031593A CN104364588A CN 104364588 A CN104364588 A CN 104364588A CN 201380031593 A CN201380031593 A CN 201380031593A CN 104364588 A CN104364588 A CN 104364588A
- Authority
- CN
- China
- Prior art keywords
- heliostat
- panel
- output
- solar
- solar energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/80—Arrangements for concentrating solar-rays for solar heat collectors with reflectors having discontinuous faces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/80—Arrangements for controlling solar heat collectors for controlling collection or absorption of solar radiation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
Shading by clouds can affect the amount of flux on a heliostat which in turn can affect the energy generated by the solar device. Real-time monitoring of clouds shading is necessary for efficient operation of the entire solar power system. The output of a photo-sensitive panel attached to a heliostat may be measured in direct unhindered sunlight and at a first orientation. The output of the photo-sensitive panel may then be predicted for a second orientation. Upon measuring the actual output of the photo-sensitive panel at the second orientation, a communication function may be performed when output measured at the second orientation of the panel is below or above the predicted output. A reduced-insolation event is indicated by lower-than-predicted output at the second orientation. Upon indication of a reduced-insolation event, the heliostats may be controlled, i.e., the aiming directions for one or more of the heliostats may be changed.
Description
the cross reference of related application
This application claims the U.S. Provisional Patent Application No.61/674 submitted on July 23rd, 2012, the priority of 630, by way of reference its entirety is incorporated to herein.
Technical field
The disclosure relates generally to solar energy system and relates more specifically to operation solar energy system to monitor that obnubilation covers.
Summary of the invention
In heliostat field, the amount of covering the flux that can affect on heliostat of cloud, thus it can affect the energy that solar energy equipment generates.The real-time monitoring that the obnubilation of at least some heliostat covers can allow the more valid function of whole solar energy system.Which type of (cloud on such as geographic area covers) what expect to know be weather condition in large geographic area is, weather station can be arranged in large regions or near large regions.But the weather condition of weather station prediction can not be the path of the cloud representing a part of only covering large regions.
In certain embodiments, the method that operation has a solar energy system of heliostat field can comprise (i) and is in direct without hindrance sunshine when the photosensitive panel being attached to heliostat and measures the output of this panel when first is directed; (ii) prediction is in the output of the second photosensitive panel in directed place; (iii) output at the second photosensitive panel in directed place is measured; And (iv) when the output of measuring in the second directed place of panel lower than or when exporting higher than prediction, executive communication function.Communication function can comprise: create alarm, send data at least one in control system and operator and record these data or alarm.But the second orientation is the orientation directed identical or different from first when position of sun changes.Can difference between Occurrence forecast and the output of measurement when there is cloud and covering.Alternatively or additionally prediction export and measure and export between the parameter be not both based on cloud.
Method can also comprise the step monitoring and reduce across the output of heliostat field; And in response to this supervision, optimize solar energy field parameter.Solar energy field optimization can comprise the sighted direction changing at least one heliostat.In addition, the movement of the cloud in solar energy field can be predicted in response to described supervision.In some instances, photosensitive panel is photoelectric cell panel or photochemistry panel.Photosensitive panel may be used for generating electric energy to the drive system when tracking solar time directed heliostat.In certain embodiments, the storage at least partially of generated electricity in the storage device.Storage device can be battery or capacitor.The calibration of photosensitive panel can by using imaging device or realizing by using insolation measuring device.
In certain embodiments, heliostat can comprise (i) at least one mirror; (ii) at least one drive system; (iii) at least one electrochemical cell, it is configured to the power being provided for heliostat drive system; (iv) multiple photoelectricity or photochemical cell, it is configured to generate the electric current for charging to electrochemical cell; And (v) controller.The value that the electric current that controller can be configured to receive photoelectricity or photochemical cell exports and calculate the amount of covering that cloud on mirror causes.Controller additionally can be configured to the orientation of calibrating heliostat at least partially exported based on the electric current of photoelectricity or photochemical cell.
In certain embodiments, operate the method with the solar energy system of heliostat field can comprise: (i) controls multiple heliostat and follow the trail of the obvious movement of the sun to reflect incident solar radiation to receiver; (ii) electric current calculating photosensitive panel exports and generates and indicates current or imminent moment insolation amount to reduce the signal of event; (iii) signal that instruction insolation amount changes is received; (iv) in response to this signal, calculate current insolation amount and reduce the feature of event or the feature of imminent moment insolation amount reduction event; And (v) in response to insolation amount reduce event calculate levy and control multiple heliostat.In response to insolation amount reduce event calculate levy, control to comprise and change the sighted direction of at least one heliostat.
Describe for operating solar energy system to monitor the system and method that the obnubilation of solar energy receiving system covers.At least one photosensitive panel can be attached with at least one solar energy reflection surface i.e. heliostat or otherwise associate.The example of photosensitive panel still can also be not restricted to photoelectric panel, photochemistry panel, photodiode and pyranometer.
According to some embodiments, photosensitive panel is used for directly or by electrochemical cell such as but be not restricted to given solar eyepiece and provide the battery of power and ultracapacitor charging, provides power to the movement of heliostat and/or communication.Term such as battery or ultracapacitor use interchangeably in the text and can refer to any storage device electric, and it comprises chargeable chemical storage device, mechanical storage such as flywheel or forbay or other device.
By the enable solar tracking undertaken by heliostat of at least one driver.In certain embodiments, adopt and there is the movement of an enable heliostat of driver of one degree of freedom, in this case, make every effort to the maximum output level of photosensitive panel so as the calibration in the moving range provided by one degree of freedom and need not directly faced by the sun.In certain embodiments, the moving meter of solar energy receiving system carries out driver by two or more driver.Two drivers are azimuth and elevation drive in an embodiment.
According to some embodiments, cloud covers the reduction causing the output level of photosensitive panel, and it causes reducing from the electric output parameter of photoelectric panel.Electricity output parameter is passable, such as, be the power of voltage, electric current, power, per unit area, or may be used for other value any of the corresponding output level representing photosensitive panel.Can analyze and reduce to determine shield parameter.Based on shield parameter, the operating parameter of solar energy system can change or keep.Such as, operating parameter can comprise the sighted direction of one or more heliostat.Cloud feature except the position of cloud shade may be used for determining shield parameter.This parameter may be used for the operating parameter determining whether and/or how to change solar energy system.Because cloud on the field moves, so the reduction of electric output parameter can be moved from a heliostat to another heliostat.On the contrary, when the output increase of concrete heliostat glazing sensitive panel is such as to premeasuring, then cloud no longer covers heliostat.If there is the further reduction of electric output parameter, then this may indicate the comparatively dense part of more spissatus layer or this cloud to hang and withstand on heliostat top.The movement of the cloud predicting these upper other parts is may be used for across the reduction of the output of this photosensitive panel at least partially or increase.According to some embodiments, the parameter be not both based on cloud between prediction exports and measures and exports.
According to some embodiments, can in response to being generated by computer for controlling and aiming at heliostat by communication systems communicate to the instruction of heliostat.Command to line-of-sight and the optimization method for generating these instructions can in response to the cloud data obtained by the method and apparatus disclosed in embodiment any in literary composition.This response can comprise cause heliostat never aiming point on the receiver move to the aiming point be positioned on receiver, move from the aiming point be positioned at receiver to the aiming point be not positioned on receiver, from the aiming point of receiver to another aiming point on same receiver, or from the aiming point of a receiver to the aiming point of another receiver.
The measured value that the electricity that controller can be configured to receive photosensitive panel exports and use this value to determine to impinge upon direct solar radiation at least one heliostat by the degree of cloud block.Can such as, by the electrical connection such as between ultracapacitor of photosensitive panel and storage medium or be such as shunt current by other connection of use, obtain the measurement of electric output parameter.Controller additionally can be configured to the measured value of reception photoelectricity or the output of photochemical cell electricity and use this value to calibrate heliostat at least one times at the installation life period of heliostat.
According to embodiment, cloud detection and Forecasting Methodology can use in conjunction with measuring the device of insolation amount and/or imaging device and/or Weather information.
When considered in conjunction with the accompanying drawings, the target of embodiment of the present disclosure from the following description and advantage will become obvious.
Accompanying drawing explanation
Hereafter by by reference to the accompanying drawing without the need to being drawn to scale, embodiment is described.Just can not illustrate that as long as feasible some features are to contribute to explanation and the description of following traits.Run through accompanying drawing, identical Reference numeral represents identical element.
Fig. 1 shows the solar column system of one or more embodiment according to disclosed theme.
Fig. 2 shows the solar column system with subreflector of one or more embodiment according to disclosed theme.
Fig. 3 shows the solar column system comprising multiple tower of one or more embodiment according to disclosed theme.
Fig. 4 shows the solar column system comprising multiple receiver at single tower of one or more embodiment according to disclosed theme.
Fig. 5 is the schematic diagram of the control system of heliostat of one or more embodiment according to disclosed theme.
Fig. 6 shows the heliostat with photoelectric panel of one or more embodiment according to disclosed theme.
Fig. 7 shows the solar column system with outstanding top cloud of one or more embodiment according to disclosed theme.
Fig. 8 shows the solar column system with a part for the heliostat field covered by one or more obnubilation according to one or more embodiment of disclosed theme.
The rearview of the solar column system of Fig. 8 that the part that Fig. 9 shows the heliostat field of one or more embodiment according to disclosed theme is covered by one or more obnubilation,
The rearview of the solar column system of Fig. 8 to Fig. 9 that another part that Figure 10 shows the heliostat field of one or more embodiment according to disclosed theme is covered by one or more obnubilation.
Figure 11 shows the top view that the obnubilation that moves through the heliostat field with multiple solar column in the very first time according to one or more embodiment of disclosed theme covers.
Figure 12 shows the top view that the obnubilation that moves through the heliostat field with multiple solar column in the second time according to one or more embodiment of disclosed theme covers.
Figure 13 shows the calibration used according to the heliostat of the photosensitive panel of one or more embodiment of disclosed theme.
Detailed description of the invention
The central recipient system that central authorities' recipient system such as has the receiver be supported on tower can comprise at least one solar receiver and multiple heliostat.Each heliostat is followed the trail of with reverberation to the aiming point in the target on tower or such target.Heliostat can arrange in any way as suitable.Such as can select spacing and the location of heliostat, with according to predict the weather data and the such as total Solar use of at least one optimization aim, can store, the extra earning of electric current production or sale of electricity provides the financial income of optimum in life cycle.
Insolation amount can be used to generate superheated steam and/or supercritical steam and/or heat fusing salt by solar column system.In FIG, solar column system can comprise the reflection received from the solar energy field 60 of heliostat (each heliostat 70 only illustrates in the left-hand part of Fig. 1) and assemble the solar column 50 at sunshine.Solar column 50 such as can have at least 25 meters, 50 meters, 75 meters, 100 meters, 125 meters or higher height.Heliostat 70 can aim at solar receiver system 20, one of such as system 20 or the solar energy receiving surface of receiver.When sun leap sky moves, heliostat 70 can regulate their orientation to follow the trail of the sun, and then continues to reflect sunshine in one or more aiming point associated with receiver system 20.The solar receiver system 20 that can comprise one or more independent receiver can be installed in solar column 50 or on.Solar receiver can be built as the solar energy fluid using insolation amount heating water and/or supercritical steam and/or other type any received from heliostat.Alternatively or additionally, target or receiver 20 can include, but are not limited to photoelectric subassembly, steam formation component (or for heat solid or fluid other assembly), for growing the biological growth assembly of biological substance (such as, for the production of bio-fuel) or other target any or being configured to the insolation amount of focusing to convert to other targets any of useful energy and/or work.
Term " receiver " self is used in reference to device in the text and is received the seizure of device location and conversion incident flux and is heat and by the part of thermoconverter or working fluid active cooling, instead of is mainly used for reflecting or simply for part such as hot brick or the refractory material of radiation or transition heat again.Receiver can be boiler, the set of heat exchanger, superheater or the concentrated light receiving part for other device of being converted in fluid to heat sunshine.
As shown in fig. 1, solar receiver system 20 can arrange tower 50 and to be in or close to the top of tower 50.In another embodiment, subreflector 40 can be arranged on or close to the top of tower 50, as shown in Figure 2.Insolation amount that therefore subreflector 40 can receive insolation amount from the field of heliostat 60 and (such as by reflection) leads again is towards solar receiver system 20.Solar receiver system 20 can be arranged on the inside of the field of heliostat 60, the field of heliostat 60 outside, be positioned at or closely plane, to be positioned at or close to the top of tower 50, higher or lower than reflector 40, or elsewhere.
Each in multiple solar column 50 can be provided with the corresponding solar energy receiving system be located thereon, such as, and solar steam system.Different solar energy receiving systems can have different functions.Such as, one in solar energy receiving system can use the solar radiation heating water of reflection with generating steam, and meanwhile, another in solar energy receiving system can use the solar radiation of reflection to play a part to be heating steam.Multiple solar column 50 can be shared common heliostat field 60 or have corresponding independent heliostat field.Some in heliostat can be fabricated and be provided so that alternatively directed insolation amount solar energy receiving system place in different tower.In addition, such as during unloading condition, heliostat can be configured to directed insolation amount away from any tower.As shown in Figure 3, each can the setting in two towers has corresponding solar energy receiving system.First tower 50A have the first solar energy receiving system 20A simultaneously the second tower 50B there is the second solar energy receiving system 20B.Solar column 50A, 50B are set to the solar radiation receiving reflection from the public field of heliostat 60.In any preset time, the heliostat in the field of heliostat 60 can be directed to any one sun receiver in solar column 50A, 50B.Only have two towers to have corresponding solar energy receiving system although figure 3 illustrates, any amount of tower and solar energy receiving system can be used.
More than one solar receiver can be arranged on solar column.Multiple solar receiver combines the part forming solar receiver system 20.Different solar receivers can have different functions.Such as, one in solar receiver can use the solar radiation heating water of reflection the solar radiation of reflection can be used to play the effect of superheated steam with another in generating steam simultaneously solar receiver.Multiple solar receiver can be arranged on the different height on same tower or the diverse location place on same tower (such as not coplanar, such as north, west etc.).In heliostat in 60 some can build and be set to alternatively directed insolation amount at different solar receiver place.As shown in Figure 4, two solar receivers can be arranged on single tower 50.Therefore solar energy receiving system 20 comprises the first solar receiver 21 and the second solar receiver 22.In any preset time, heliostat 70 can aim at one or two solar receivers or not aim at any one receiver.Use in sight at some, the aiming of heliostat can regulate, so that the folded light beam being incident upon tower 50 is moved to another solar receiver (such as 22) from a solar receiver (such as 21).Although only have two solar receivers and a tower in the diagram, any amount of solar column and solar receiver can be used.
Can by the heliostat 70 in central heliostat field control system 91 controlling filed 60 such as shown in Fig. 5.Such as, central heliostat field control system 91 can be communicated with the controller of each heliostat by data communication network dividing level.Fig. 5 shows control by levels system 91, it comprises three ranks of control hierarchy, although there is more or less rank of level in other is implemented, and still in other is implemented, whole data communication network can not have level, such as, in distributed treatment is arranged, peer to peer communication protocol is used.
The minimum rank (rank namely provided by heliostat controller) of the control hierarchy illustrated is provided with control system of heliostat able to programme (HCS) 65, it controls diaxon (azimuth and the elevation angle) the mobile (not shown) of heliostat, such as, when their follow the trail of sun mobile.At the higher level place of control hierarchy, be provided with heliostat array control system (HACS) 92,93, it is each by utilizing the control system of heliostat able to programme 65 associated with these heliostats 70 through using network operating system such as CAN, and the multipoint data network 94 of facility network, Ethernet or analog controls the operation of heliostat 70 (not shown) of heliostat field 96,97.Arrange master control system (MCS) 95 at the higher level place of control hierarchy, it is via the operation of network 94 by the heliostat indirectly controlling heliostat field 96,97 that communicates with heliostat array control system 92,93.Master control system (MCS) 95 also passes through the operation of Control on Communication solar receiver (not shown) via the network 94 to receiver control system (RCS) 99.
In Figure 5, the part being arranged on the network 94 in heliostat field 96 can based on copper cash or Fiber connection, and each control system of heliostat 65 be arranged in heliostat field 96 can be equipped with communication adapter cable, and with master control system 95, heliostat array control system 92 and cable network control bus router one 00, its be alternatively deployed in network 94 with more effectively process to heliostat field 96 control system of heliostat 65 able to programme or the traffic in heliostat field 96 between control system of heliostat 65 able to programme.In addition, the control system of heliostat able to programme 65 being arranged on heliostat field 97 is communicated with heliostat array control system 93 by radio communication through network 94.In order to this object, control system of heliostat 65 each able to programme in heliostat field 97 is equipped with wireless communication adapter 102, and have wireless network router one 01, its be alternatively deployed in network 94 with more effectively process to heliostat field 96 control system of heliostat 65 able to programme or the traffic in heliostat field 96 between control system of heliostat 65 able to programme.In addition, master control system 95 is alternatively equipped with wireless communication adapter (not shown).
According to one or more embodiment of disclosed theme, the photosensitive panel with sensor unit can be attached or be associated to heliostat.Photosensitive sensor element can comprise the photosensitive surface for receiving light.Photosensitive surface can be prepared by so a kind of material, in this material, at least one electricity can measuring amount be under the impact of light be changeable and can directly via electrode or the electric charge that creates via panel measured.But the example of photosensitive panel can comprise and is not restricted to photoelectric panel, photochemistry panel, photodiode and pyranometer.
According to some embodiments, photosensitive panel be may be used for directly or is provided the electrochemical cell of power by charging subsequently to heliostat, provides power to communication system that is mobile and/or heliostat.Electrochemical cell can include, but are not limited to battery and ultracapacitor.
According to some embodiments, the control system of heliostat heliostat that can lead is directed to the orientation making to produce maximum output from attached photosensitive panel, makes it in two drive systems directly in the face of the sun.According to some embodiments, if there is a driver, the maximum without hindrance radiant in the moving range that so can be provided by photosensitive panel searching one degree of freedom performs calibration, and without the need to direct in the face of the sun.Two drive systems in some embodiments can comprise azimuth and the elevation angle, and it is passable, such as, realize mobile, such as, tilt, roll and wave.
May be used for calibrating heliostat from the output of the photosensitive panel measuring be arranged on the sun and heliostat during expedite sunshine.Measure orientation that maximum electricity that photosensitive panel produces exports when being used in measurement at known position of sun place and by this measurement with relate to its heliostat orientation driven and compare and perform calibration.Such as, photosensitive panel can perform new heliostat is installed initial calibration and find the maximum output of panel for special time on daytime.Controller can record heliostat, photosensitive panel and the reference system of the sun relative to the earth and the orientation of magnetic north pole.In addition, controller can recording light sensitive panel orientation relative to mirror orientation between relation.Then likely calculate these known parameters and in certain embodiments, predict for daytime any time from the output of photosensitive panel and heliostat directed.Repeatedly calibration testing is adopted to increase precision.In certain embodiments, when the position of the sun is different from the position of the sun between first time alignment epoch, calibration can occur.
According to some embodiments, photosensitive panel can make it always directly in the face of the sun by the motor driven of himself, and even heliostat is orientated as and made its surface normal divide angle between solar rays and the line from mirror surfaces to tower equally.In this embodiment, controller can compensate the difference of change directed between mirror and photosensitive panel.
The calibration more than related to can be used to predict in any heliostat orientation with by day any time in the output level of photosensitive panel.If it is not the measurement of expection/prediction that the electricity of actual measurement exports, can actuate alert and/or data can be conveyed in control system and operator at least one.In certain embodiments, data and/or alarm can be recorded.
According to some embodiments, the output from the actual measurement of photosensitive panel can be less than expection/prediction and export.This may be by being caused by obstruction the direct sunshine received by photosensitive panel, such as, by covering of dust or adjacent heliostat.In an embodiment, cloud can hinder the path between the sun and photosensitive panel.In certain embodiments, the reduction from the output of photosensitive panel can cause by causing the directed incorrect machinery of heliostat or electric fault.
In certain embodiments, actual measurement can export larger than expection/prediction.In such example, need to recalibrate heliostat and/or photosensitive panel.
Fig. 6 shows to be had attachment or otherwise is associated to the heliostat 70 of the photoelectric panel 72 at the top of heliostat.Photoelectric panel 72 is attached to the top of heliostat 70 at contact sunshine or other go up or the contiguous heliostat 70 close to sunshine Anywhere in this embodiment, is desirable orientation place for reflection sunshine to reception tower during heliostat is oriented in routine operation.According to some embodiments, heliostat is orientated and makes its surface normal divide solar rays equally and from heliostat to the angle between the line of receiver.When photosensitive panel is directly in the face of the solar time, photosensitive panel performs most effectively.According to some embodiments, when photosensitive panel is directly in the face of the sun or when the solar energy reflection surface of fixed light sensitive panel is as during with orientation as described above, can calibrating of photosensitive panel.According to some embodiments, the angle of the plane of photosensitive panel can be different from the angle of sun reflecting surface, such as closer to by day period at least some time by the orientation of the opposite sun.According to some embodiments, photosensitive panel by the engine of self or can be configured to keep panel directly in the face of the photosensitive panel of the sun is to drive as the most directed other travel mechanism any for light sensitivity/charging.
According to some embodiments, PV module/panel lead-in wire can be shorted to measure the electric current produced from it.Alternatively, shunt circuit is for measuring electric current.As stated above, the more irradiation level inciding PV panel will produce less output by producing more multi output and the less irradiation level be incident on PV panel.But in order to produce enough electric currents to manipulate heliostat directly or to charge to battery or capacitor, the orientation of PV panel needs not to be directly in the face of the sun.Additionally, do not have direct sunshine (namely via diffused light), PV panel can work.At the noon of fine day, in normal operating, what panel produced is produced by the direct sunshine contrary with diffused light up to the electric current more than 90%.
As shown in Figure 7, heliostat field can comprise one or more heliostat, such as, aims at the solar tracking mirror of the target being used for heating material (such as, water, fuse salt or other material any), wherein uses the sunshine of reflection.Heliostat 70a, 70b, 70c in can aim at the target (namely solar energy receiving system 500) be arranged on tower 50.
According to some embodiments, in response to being generated by computer for controlling and aiming at heliostat by communication systems communicate to the instruction of heliostat.Command to line-of-sight and the optimization method for generating these instructions can in response to the cloud data obtained by embodiment the methods and apparatus disclosed any in literary composition.This response can comprise: cause heliostat never aiming point on the receiver move to the aiming point be positioned on receiver, the aiming point be not positioned on receiver is moved to from the aiming point be positioned at receiver, move to another aiming point on same receiver from the aiming point of receiver, or move to the aiming point of another receiver from the aiming point of a receiver.
In operation, the sunshine from the sun 300 restraints the reflecting surface that 310,320,330 can irradiate heliostat mirror 70a, 70b and 70c respectively.Heliostat then can towards receiver 500 folded light beam 311,321,331.Folded light beam 311,321,331 outside the bundle of other heliostat reflection in can add the temperature between hot receiver 500 to 400 DEG C and 800 DEG C.
When cloud through the sun and heliostat time, direct solar radiation amount can be momentarily interrupted.As a result, the radiation reflexing to solar receiver can be different from Flux Distribution that is desirable or expection.This can cause the localized variation of temperature or flux.In flux and change can damage receiver and cause undesirable operating condition, such as, the steam produced or cross the reduction of heating steam temperature.
Fig. 7 shows when obnubilation covers the example of heliostat day.Do not irradiate heliostat 70a and 70c along with cloud 193 covers the sun 300, do not cover 70b simultaneously, the stop of insolation amount can be seen.
According to one or more embodiment of disclosed theme, the reduction being covered the output level of the photosensitive panel caused by cloud can cause treating that being created electric charge output level that is less or panel by panel reduces.This reduction can be measured and is proportional to a certain extent with the amount of cloud cover scope.The instruction of the character that this measurement can provide cloud to cover.In other words, Yun Yuehou, covering of heliostat is larger, and this causes the larger minimizing of the measured output of photosensitive panel.What reduce may be due to some other cloud parameters at least partially, such as, and the height of cloud.The measurement of output example as current/charge is well known by persons skilled in the art and can have such as been come by short circuit or the photosensitive panel of intimate short circuit.
As limiting examples, when the solar energy of 1000W/m is incident on panel, such as, at the PV panel of 12 volts, electric current can fall in the scope of 0 to 1 ampere.But when there is the sunshine that obnubilation covers from PV panel, incident light is passable, such as, 400W/m is decreased to and the electric current produced can reduce pro rata.Cloud covering can cause total incidence to be reduced to and be less than 400W/m.
According to some embodiments, cloud covers the reduction causing the output level of photosensitive panel, and it causes the electric output parameter of photoelectric panel to reduce.Electricity output parameter can be such as, the power of voltage, electric current, power, per unit area or may be used for other value any of the corresponding output level representing photosensitive panel.Can analyze and reduce to determine shield parameter.Based on shield parameter, the operating parameter of solar energy system can change or keep.Can comprise one or more heliostat sighted direction for example, referring to parameter.Cloud feature except the location that obnubilation covers may be used for determining shield parameter.Such feature may be used for the operating parameter determining whether and/or how to change solar energy system.
When cloud is on heliostat, along with cloud passes in solar energy field, can the reduction of standby current in the higher level in level.Along with when being back to a PV panel sunshine, the PV panel of the vicinity on other heliostat can be hindered by identical cloud, because the road of identical cloud is through field.In certain embodiments, such as, by monitoring the fluctuation of insolation amount incident on PV panel in solar energy field, can shield parameter be calculated, as shown in Fig. 8 to Figure 10 through one of field or the track of cloud.Time-series image can to help the following shadow state of prediction about heliostat field.Therefore, shield parameter can comprise following shield parameter and then can try to be the first and realizes affecting the operation of at least one operating parameter of solar energy system.In an embodiment, the operation of trying to be the first can be relevant with the steam obtained in fossil fuel.Such as, in the condenser zone (namely in heliostat field, heliostat aims at the region of evaporator section of receiver) in cloud graphical analysis instruction heliostat field region within the time cycle of specifying by crested, advantageously startup natural gas boiler makes the steam obtained from natural gas can be injected into the steam knock-out drum associated with evaporator/boiler.
In certain embodiments, the operation of trying to be the first relates to the heliostat again aimed at.Because heliostat may need a certain amount of journey time again to aim at, so may be favourable at the interim in advance heliostat that again aimed at before heliostat becomes crested of prediction or the condition of covering in future.
In certain embodiments, the ground level place that cloud produces or the closely location of plane place shade and/or the shape of shaded areas or size can be determined.As shown in Figure 11 to Figure 12, such as, the movement of covering 106 can be followed the trail of along with covering 106 heliostats 70 moved through in the system 60 with multiple tower 50.
The feature of this movement can comprise the velocity of rotation of determining the shape of shade, the point-to-point speed of shade and/or shade thus determines and/or predict the movement of cloud shade relative to other assembly of heliostat field or solar energy system.The shade determined can depend on multiple factor, but factor comprises and being not restricted to, the position of the sun determined from chronometer data such as day of year, time of day and geographical position in advance.
(the US publication No.2011/0220091 that on January 20th, 2011 submits in the Another application of instant application, be incorporated by reference herein), relate to method and apparatus for operating solar energy system to illustrate that obnubilation covers, the image of the imaging device picked-up on sky and/or ground, and for monitor and prediction obnubilation covers.
According to some embodiments, cloud Forecasting Methodology as described above and the method described in the US2011/0220091 be incorporated to can together with use.Additionally or alternatively, measure insolation amount such as pyroheliometer and pyranometer multiple devices can with method described above together with field in or near with method described above together with field place use.Pyroheliometer and pyranometer or other weather information any and/or insolation amount device can be arranged in solar energy field or near solar energy field.
According to some embodiments, its position and directed be that the photosensitive panel known may be used for calibrating such as the second heliostat in fig. 13 as shown relative to the first heliostat.Any time by day, known during the position of the sun 300.First heliostat 1402 can have the photosensitive panel 72 be attached on it, and its orientation relative to the first heliostat 1402 and position are known.According to some embodiments, photosensitive panel 72 can be independently and not be attached to heliostat.Only know that perhaps the azimuthal orientation of panel 72 is enough and its elevation angle orientation may be unwanted.In order to allow only to calibrate azimuth, panel 72 and the second heliostat 1404 need to be in approx in the orientation of so a kind of elevation angle, and the reflection wherein from heliostat 1404 in this elevation angle orientation will be detected by panel 72 sunshine.Mirror orientation is such as unknown and heliostat 1404 that is needs calibration indicates by controller the rotation starting its azimuth axis.When the reflective surface reflects light of heliostat 1404 is to photoelectric panel 72, photoelectric panel 72 will have than a lot of output high when not having the sun to reflect from heliostat 1404.Directly connect the same day when being reflected on panel, exported rapid peaking., the known position of the orientation of record heliostat 1404 and this directed lower motor coordinate of heliostat 1404 and the position of the sun and photosensitive panel and orientation.Then the orientation of heliostat 1404 can adopt this Measurement and calibration.Selectively, other measurement at different time place of same heliostat can be carried out and be added to calibration data.In certain embodiments, multiple heliostat can be calibrated in this way simultaneously.
It should be noted that embodiment described above can also comprise reception, transmission or storage instruction and/or implement the data of operation described above according to computer-readable medium together with accompanying drawing.In general, computer-readable medium can comprise storage medium or storage medium such as magnetizing mediums, flash media or optical medium, such as, disk or CD-ROM, volatile or non-volatile medium, such as RAM, ROM etc., and the signal such as signal of telecommunication, electromagnetic signal or data signal that transmission medium or carry out via communication media such as network and/or Radio Link transmits.
It should be understood that method described above, process and system can with hardware, by the hardware of software programming, be stored in software instruction in non-transitory computer-readable medium or above combination is implemented.Such as, in order to control heliostat, processor can be configured to execution and be stored in a series of programmed instruction in non-transitory computer-readable medium.Processor can include, but are not limited to comprise processor, microprocessor, microcontroller device or by comprising the PC of the control logic that integrated circuit such as special IC (ASIC) is formed or work station or other such computer system.Instruction can by according to programming language such as Java, C++, C#.net or etc. arrange source code instruction compile.Instruction can also comprise the code and datum target that arrange according to such as visual basic language or other structuring or object-oriented programming language.Programmed instruction and the relative data of series can be stored in non-transitory computer-readable medium, such as computer storage or storage device, it can be any suitable storage arrangement, such as, but be not restricted to read-only storage, programmable read only memory, Electrically Erasable Read Only Memory (EEPROM), random access memory (RAM), flash memory, disc driver etc.
In addition, disclosed method, process and/or system by single processor or can be implemented by distributed processors.In addition, be understandable that the step discussed in literary composition can in the upper execution of single or distributed processors (list and/or multinuclear).In addition, the method described in above embodiment, process and/system can be distributed in multiple memory or system, or can be co-located in single processor or system.The example arrangement embodiment being suitable for alternatively implementing method described above, process and/or system is below provided, but is not restricted to this.
Method described in literary composition, process and/or system can be implemented as such as general programmable computer, adopt the electronic installation of microcode programming, hardwired analog logic circuit, be stored in software in computer-readable medium or the networked system of signal, light technique device, electronics and/or electro-optical device, special calculation element, IC apparatus, semiconductor chip and software module or the target stored on a computer-readable medium or signal.And, the software that the embodiment of disclosed method, process and/or system can perform on general programmable computer, special-purpose computer, for processor or etc. in realize.
Disclosed method, the embodiment of process and/or system (or their subassembly or module) can be implemented in all-purpose computer, special-purpose computer, programmable microprocessor or microcontroller and peripheral integrated circuit element, ASIC or other integrated circuit, digital signal processor, hard continuous electronic or logic circuit, such as discrete component circuit, PLD is programmable logic device (PLD) such as, programmable logic array (PLA), field programmable gate array (FPGA), programmable logic array (PAL) device etc.In a word, any method that can realize function described in literary composition or step may be used for the embodiment of implementation method, process, system and/or computer program (being stored in software program in non-transitory computer-readable medium).
In addition, the embodiment of disclosed method, process and/or system can easily realize in whole or in part in the software using such as object or Object-oriented Software Development environment, this software development environment provide be used in various computer smooth on portable source code.Alternatively, the embodiment of disclosed method, process and/or system can realize using such as standard logic circuits or ultra-large integrated (VLSI) to design in hardware partially or entirely.According to the speed of system and/or efficiency requirements, specific function and/or special software or hardware system, the microprocessor used or microcomputer, other hardware or software may be used for realizing embodiment.The functional description that the embodiment of disclosed method, process and/or system can be provided from literary composition by the those of ordinary skill in application and adopt the system or structure, device and/or software that the general rudimentary knowledge of solar energy system and/or computer programming are using any known or later development to realize in hardware and/or software.
The feature of disclosed embodiment can combine within the scope of the invention, rearrange, omission etc. to be to produce other embodiment.In addition, certain function can sometimes advantageously use need not further feature correspondence use.
Therefore obviously according to the method and system that present disclose provides for operating solar energy system, it comprises supervision obnubilation and covers.Many replacements, embodiment and distortion allow by the disclosure.Specific embodiment has been shown specifically and has described the application that principle of the present invention is described simultaneously, is understandable that the present invention can realize in other side and not depart from such principle.Therefore, applicant is intended to comprise all such replacements in the spirit and scope of the present invention, improvement, equivalent and distortion.
Claims (17)
1. operation has a method for the solar energy system of heliostat field, and it comprises:
Be in direct without hindrance sunshine when the photosensitive panel being attached to heliostat and when first is directed, measure the output of described panel;
Predict the output of described photosensitive panel at the second directed place;
Measure the output of described photosensitive panel at the second directed place; And
When the output of measuring in the second directed place of panel lower than or when exporting higher than prediction, executive communication function,
Wherein communication function be following among one: create alarm, to send data in control system and operator at least one and record described data or described alarm.
2. method according to claim 1, wherein, but when position of sun changes, the second orientation is the orientation directed identical or different from first.
3. method according to claim 1, wherein, photosensitive panel generating electric energy is to drive the system when following the trail of solar time directed heliostat.
4. method according to claim 3, wherein, the storage at least partially of generated electricity in the storage device.
5. method according to claim 4, wherein, storage device is one in battery or capacitor.
6. method according to claim 1, wherein, when there is cloud and covering, Occurrence forecast exports and measures the difference between exporting.
7. method according to claim 1, wherein, the parameter be not both based on cloud between prediction exports and measures and exports.
8. method according to claim 1, also comprises the step monitoring and reduce across the output of heliostat field; And in response to described supervision, optimize solar energy field parameter.
9. according to claim 8, wherein, solar energy field optimization comprises the sighted direction changing at least one heliostat.
10. method according to claim 8, also comprises in response to described supervision to predict the step of the movement of the cloud in solar energy field.
11. methods according to claim 1, wherein, photosensitive panel is photoelectric cell panel or photochemistry panel.
12. methods according to claim 1, also comprise the step using one or more imaging device alignment light sensitive panel.
The method of 13. 1 kinds of operation solar energy systems according to claim 1, also comprises and uses one or more insolation measuring device alignment light sensitive panel.
14. 1 kinds of heliostats, it comprises:
At least one mirror;
At least one drive system;
At least one electrochemical cell, it is configured to the power being provided at least one heliostat drive system;
Multiple photoelectric cell or photochemical cell, it is configured to generate the electric current for charging at least one electrochemical cell; And
Controller, it is configured to the value of electricity output receiving photoelectric cell or photochemical cell and calculates the amount of covering caused at least one mirror by cloud.
15. heliostats according to claim 14, wherein, the value that described controller is configured to export based on the electricity of photoelectric cell or photochemical cell at least in part in addition calibrates the orientation of heliostat.
16. 1 kinds of operations have the method for the solar energy system of heliostat field, and described method comprises:
Control multiple heliostat and follow the trail of the obvious movement of the sun to reflex on receiver by incident solar radiation;
The electricity calculating photosensitive panel exports and generates and indicates current or imminent moment insolation amount to reduce the signal of event;
Receive the signal that instruction insolation amount changes;
In response at least one signal described, calculate current insolation amount and reduce the feature of event or the feature of imminent moment insolation amount reduction event; And
In response to insolation amount reduce event calculate feature, control multiple heliostat.
17. methods according to claim 16, wherein, in response to insolation amount reduce event institute calculates feature, control can comprise change at least one heliostat sighted direction.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261674630P | 2012-07-23 | 2012-07-23 | |
| US61/674,630 | 2012-07-23 | ||
| PCT/IB2013/055794 WO2014016727A2 (en) | 2012-07-23 | 2013-07-14 | Method and apparatus for operating a solar energy system including monitoring of cloud shading |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104364588A true CN104364588A (en) | 2015-02-18 |
| CN104364588B CN104364588B (en) | 2018-05-11 |
Family
ID=49997914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380031593.1A Expired - Fee Related CN104364588B (en) | 2012-07-23 | 2013-07-14 | Co-operate heliostat and photoelectric panel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104364588B (en) |
| WO (1) | WO2014016727A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109871996A (en) * | 2019-02-14 | 2019-06-11 | 浙江中控太阳能技术有限公司 | A kind of tower photo-thermal power station mirror field cloud monitoring System and method for based on photovoltaic panel |
| CN114008392A (en) * | 2019-03-06 | 2022-02-01 | 瓦斯特太阳能有限公司 | Method and system for controlling CSP receiver operation |
| CN114034128A (en) * | 2021-11-01 | 2022-02-11 | 浙江可胜技术股份有限公司 | Method and system for measuring cloud distribution in mirror field |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10418833B2 (en) | 2015-10-08 | 2019-09-17 | Con Edison Battery Storage, Llc | Electrical energy storage system with cascaded frequency response optimization |
| US10190793B2 (en) | 2015-10-08 | 2019-01-29 | Johnson Controls Technology Company | Building management system with electrical energy storage optimization based on statistical estimates of IBDR event probabilities |
| US10700541B2 (en) | 2015-10-08 | 2020-06-30 | Con Edison Battery Storage, Llc | Power control system with battery power setpoint optimization using one-step-ahead prediction |
| US10418832B2 (en) | 2015-10-08 | 2019-09-17 | Con Edison Battery Storage, Llc | Electrical energy storage system with constant state-of charge frequency response optimization |
| US10742055B2 (en) | 2015-10-08 | 2020-08-11 | Con Edison Battery Storage, Llc | Renewable energy system with simultaneous ramp rate control and frequency regulation |
| US10283968B2 (en) | 2015-10-08 | 2019-05-07 | Con Edison Battery Storage, Llc | Power control system with power setpoint adjustment based on POI power limits |
| US10197632B2 (en) | 2015-10-08 | 2019-02-05 | Taurus Des, Llc | Electrical energy storage system with battery power setpoint optimization using predicted values of a frequency regulation signal |
| US10222427B2 (en) | 2015-10-08 | 2019-03-05 | Con Edison Battery Storage, Llc | Electrical energy storage system with battery power setpoint optimization based on battery degradation costs and expected frequency response revenue |
| US10554170B2 (en) | 2015-10-08 | 2020-02-04 | Con Edison Battery Storage, Llc | Photovoltaic energy system with solar intensity prediction |
| US11210617B2 (en) | 2015-10-08 | 2021-12-28 | Johnson Controls Technology Company | Building management system with electrical energy storage optimization based on benefits and costs of participating in PDBR and IBDR programs |
| US10389136B2 (en) | 2015-10-08 | 2019-08-20 | Con Edison Battery Storage, Llc | Photovoltaic energy system with value function optimization |
| US10222083B2 (en) | 2015-10-08 | 2019-03-05 | Johnson Controls Technology Company | Building control systems with optimization of equipment life cycle economic value while participating in IBDR and PBDR programs |
| US10250039B2 (en) | 2015-10-08 | 2019-04-02 | Con Edison Battery Storage, Llc | Energy storage controller with battery life model |
| US10564610B2 (en) | 2015-10-08 | 2020-02-18 | Con Edison Battery Storage, Llc | Photovoltaic energy system with preemptive ramp rate control |
| US10778012B2 (en) | 2016-07-29 | 2020-09-15 | Con Edison Battery Storage, Llc | Battery optimization control system with data fusion systems and methods |
| US10594153B2 (en) | 2016-07-29 | 2020-03-17 | Con Edison Battery Storage, Llc | Frequency response optimization control system |
| DE102018214197A1 (en) * | 2018-08-22 | 2020-02-27 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Solar power plant and method for operating a solar power plant |
| US11163271B2 (en) | 2018-08-28 | 2021-11-02 | Johnson Controls Technology Company | Cloud based building energy optimization system with a dynamically trained load prediction model |
| US11159022B2 (en) | 2018-08-28 | 2021-10-26 | Johnson Controls Tyco IP Holdings LLP | Building energy optimization system with a dynamically trained load prediction model |
| CN116295127B (en) * | 2023-05-22 | 2023-08-08 | 四川蜀旺新能源股份有限公司 | Method for determining direction of cogeneration light-receiving surface by measuring light length |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4365617A (en) * | 1980-10-02 | 1982-12-28 | Eckhard Bugash | Solar energy heating system |
| US20090250052A1 (en) * | 2007-11-12 | 2009-10-08 | Luz Ii Ltd. | Solar receiver with energy flux measurement and control |
| US20100006087A1 (en) * | 2008-07-10 | 2010-01-14 | Brightsource Industries (Israel) Ltd. | Systems and methods for control of a solar power tower using infrared thermography |
| US20110067750A1 (en) * | 2008-05-28 | 2011-03-24 | Kousuke Ueda | Tracking solar photovoltaic power generation system, and tracking control method and tracking shift correction method for tracking solar photovoltaic power generation system |
| US20110220091A1 (en) * | 2010-01-20 | 2011-09-15 | Brightsource Industries (Israel), Ltd. | Method and apparatus for operating a solar energy system to account for cloud shading |
| CN102216696A (en) * | 2008-04-20 | 2011-10-12 | 波音公司 | Autonomous heliostat for solar power plant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008128237A1 (en) * | 2007-04-15 | 2008-10-23 | Brightsource Energy | Heliostat and system |
-
2013
- 2013-07-14 WO PCT/IB2013/055794 patent/WO2014016727A2/en active Application Filing
- 2013-07-14 CN CN201380031593.1A patent/CN104364588B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4365617A (en) * | 1980-10-02 | 1982-12-28 | Eckhard Bugash | Solar energy heating system |
| US20090250052A1 (en) * | 2007-11-12 | 2009-10-08 | Luz Ii Ltd. | Solar receiver with energy flux measurement and control |
| CN102216696A (en) * | 2008-04-20 | 2011-10-12 | 波音公司 | Autonomous heliostat for solar power plant |
| US20110067750A1 (en) * | 2008-05-28 | 2011-03-24 | Kousuke Ueda | Tracking solar photovoltaic power generation system, and tracking control method and tracking shift correction method for tracking solar photovoltaic power generation system |
| US20100006087A1 (en) * | 2008-07-10 | 2010-01-14 | Brightsource Industries (Israel) Ltd. | Systems and methods for control of a solar power tower using infrared thermography |
| US20110220091A1 (en) * | 2010-01-20 | 2011-09-15 | Brightsource Industries (Israel), Ltd. | Method and apparatus for operating a solar energy system to account for cloud shading |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109871996A (en) * | 2019-02-14 | 2019-06-11 | 浙江中控太阳能技术有限公司 | A kind of tower photo-thermal power station mirror field cloud monitoring System and method for based on photovoltaic panel |
| CN114008392A (en) * | 2019-03-06 | 2022-02-01 | 瓦斯特太阳能有限公司 | Method and system for controlling CSP receiver operation |
| CN114034128A (en) * | 2021-11-01 | 2022-02-11 | 浙江可胜技术股份有限公司 | Method and system for measuring cloud distribution in mirror field |
| CN114034128B (en) * | 2021-11-01 | 2023-12-12 | 浙江可胜技术股份有限公司 | Method and system for measuring cloud distribution in lens field |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014016727A2 (en) | 2014-01-30 |
| WO2014016727A3 (en) | 2014-07-24 |
| CN104364588B (en) | 2018-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104364588A (en) | Heliostat and photo-sensitive panel being operated at the same time | |
| CN103135521B (en) | For controlling and correct the method and system of solar electrical energy generation Tower System | |
| CN103676962B (en) | The method and apparatus covered for mapping obnubilation on the ground in big region | |
| US8076625B2 (en) | Field level tracker controller | |
| US20100139644A1 (en) | Heliostat calibration | |
| CN102549350B (en) | Calibration system for solar collector installation | |
| US20130239952A1 (en) | Methods and systems for operating solar tower systems | |
| US20110259320A1 (en) | Solar light collecting method in multi-tower beam-down light collecting system | |
| US8655498B2 (en) | Method and system for standby power generation supplementing solar arrays | |
| CN103744437B (en) | The tracking of solar automatic tracking system | |
| Ahmed et al. | Computer vision and photosensor based hybrid control strategy for a two-axis solar tracker-Daylighting application | |
| EP3649410B1 (en) | System for positioning solar panels in an array of solar panels to efficiently capture sunlight | |
| CN203689162U (en) | Solar automatic tracking device | |
| KR101983453B1 (en) | Method and system for controlling cluster of sunlight trackers | |
| KR100986818B1 (en) | Method and Apparatus for Tracking The Sun | |
| CN204046834U (en) | For the system of the RFDC in solar power plant | |
| US20230275541A1 (en) | Single axis solar tracker management method and solar plant implementing said method | |
| CN203909628U (en) | Reflector tracking alignment control device | |
| KR102648927B1 (en) | Smart apparatus and method for tracking the sun | |
| CN103427714B (en) | A kind of solar energy reflection concentration photovoltaic system and reflecting condensation method thereof | |
| KR101067943B1 (en) | Solar tracking device and control method therefor | |
| Kuttybay et al. | Assessment of solar tracking systems: A comprehensive review | |
| CN103941755A (en) | Reflector tracking alignment control device and working method | |
| JP2014169843A (en) | Sun position measurement mechanism and sun tracking device using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180511 Termination date: 20180714 |