CN110768883B - Mirror field control system and method - Google Patents
Mirror field control system and method Download PDFInfo
- Publication number
- CN110768883B CN110768883B CN201911387450.XA CN201911387450A CN110768883B CN 110768883 B CN110768883 B CN 110768883B CN 201911387450 A CN201911387450 A CN 201911387450A CN 110768883 B CN110768883 B CN 110768883B
- Authority
- CN
- China
- Prior art keywords
- mirror
- controller
- heliostat
- mirror row
- row controller
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
-
- 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
- F24S50/20—Arrangements for controlling solar heat collectors for tracking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
-
- 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
- Y02E10/47—Mountings or tracking
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- General Health & Medical Sciences (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)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention provides a mirror field control system and a method, comprising the following steps: a plurality of groups of control ring networks; each control ring network comprises a plurality of mirror row controllers and a heliostat group in communication connection with each mirror row controller; in any two control ring networks, one mirror row controller in one control ring network and one mirror row controller in the other control ring network are mutually redundant, so that the mirror row controllers which are mutually redundant control the heliostat group in communication connection with the heliostat group, and simultaneously, the communication state of the heliostat group in communication connection with the other mirror row controller is monitored or managed. The heliostat communication reliability is greatly improved by optimizing the functions of the mirror row controller, improving the network connection structure and adding a small number of communication cables.
Description
Technical Field
The invention relates to the field of solar thermal power generation, in particular to a mirror field control system and method.
Background
While the economy is continuously developed, the energy is in short supply day by day, the traditional non-renewable energy is exhausted day by day, the economic development is more and more limited by the development and utilization of the energy, the utilization of the renewable energy is generally concerned, and particularly, the solar energy is more concerned by people in the world. Solar thermal power generation is a main mode of current solar energy utilization, and in the field of solar thermal power generation, tower type solar thermal power generation becomes a next novel energy technology capable of commercial operation due to the advantages of high light-heat conversion efficiency, high focusing temperature, simple installation and debugging of a control system, less heat dissipation loss and the like.
A large number of heliostats are distributed in a heliostat field, a control system is required to carry out unified scheduling and management, and reliable communication links must be arranged among the heliostats, a mirror row controller and upper computer software. Otherwise, when communication interruption occurs in the sun tracking process of the heliostat, on one hand, the heliostat with a communication fault cannot track the sun normally, so that the energy of light converged on the heat absorber is reduced, the generated energy of the power station is reduced indirectly, and the economic benefit is influenced; on the other hand, a heliostat with communication interruption in a sun tracking state may converge light spots at unintended positions, which may cause danger. In the mirror field control system, each level of network from an upper computer to the heliostat adopts a redundant network structure, so that the reliability of the whole system can be improved.
Disclosure of Invention
The invention aims to provide a system and a method for controlling a heliostat field, which realize a redundant network between a mirror controller and a heliostat with lower cost, reduce the cost and improve the communication reliability of the heliostat.
The invention provides a mirror field control system, which adopts the following technical scheme:
the mirror field control system comprises a mirror field control server and a network switch, and further comprises: a plurality of control ring networks;
each control ring network comprises a plurality of mirror row controllers and a heliostat group in communication connection with each mirror row controller;
in any two control ring networks, one mirroring controller in one control ring network and one mirroring controller in the other control ring network are redundant mutually, so that the mirroring controllers control the corresponding heliostat groups in the same control ring network and monitor or manage the communication states of the mirroring controllers which are redundant mutually and the heliostat groups controlled by the mirroring controllers in the other control ring network.
Preferably, in the same control ring network, the number of the mirror row controllers corresponding to each heliostat group is one.
Preferably, any two control ring networks are two adjacent control ring networks, and each mirror controller and one mirror controller in the adjacent control ring networks are redundant mutually.
Preferably, two mirror row controllers which are redundant to each other are respectively located at two ends of the controlled or monitored heliostat group.
Preferably, in two adjacent control ring networks, two heliostat groups controlled or monitored by two redundant mirror controllers are distributed in a staggered manner.
Preferably, when the mirror row controller controls two heliostat groups simultaneously, the two heliostat groups are controlled one by one according to a preset time sequence.
Preferably, the mirror controller is provided with a network communication interface or two network communication interfaces;
when a network communication interface is arranged on the mirror row controller, the mirror row controller is connected with one heliostat group in the same control ring network through the network communication interface, and meanwhile, the network communication interface is also connected with one heliostat group in the other control ring network;
when two network communication interfaces are arranged on the mirror row controller, the mirror row controller is connected with one heliostat group in the same control ring network through one network communication interface, and is connected with one heliostat group in the other control ring network through the other network communication interface.
Preferably, the set of heliostats comprises a plurality of heliostats;
when the heliostat is provided with a communication interface, the heliostat is connected with one mirroring controller in the same control ring network through one communication interface, and meanwhile, the communication interface is also connected with one mirroring controller of another control ring network;
when the heliostat is provided with two communication interfaces, the heliostat is connected with one mirror controller in the same control ring network through one communication interface and is connected with one mirror controller of the other control ring network through the other communication interface.
The invention provides a mirror field control method corresponding to a mirror field control system, which adopts the following technical scheme:
a mirror field control method adopts the above mirror field control system, the mirror field control system comprises a first mirror controller and a second mirror controller, and the first mirror controller and the second mirror controller are located in different control ring networks; the method implemented by the mirror field control system comprises the following steps:
s101: the first mirror row controller monitors the second mirror row controller and the communication state of the heliostat group controlled by the second mirror row controller, and meanwhile, the second mirror row controller monitors the first mirror row controller and the communication state of the heliostat group controlled by the first mirror row controller;
s102: when monitoring that the communication between the second mirror row controller and the heliostat controlled by the second mirror row controller is abnormal, the first mirror row controller sends a query instruction to the second mirror row controller so as to determine the communication fault between the second mirror row controller and the controlled heliostat;
s103: the first mirror row controller takes over and controls the heliostat with abnormal communication with the second mirror row controller;
s104: the first mirror controller periodically sends a query instruction to the second mirror controller;
s105: after the communication fault between the second mirror row controller and the controlled heliostat is recovered, receiving and responding to a query instruction which is fed back periodically by the first mirror row controller so as to inform the first mirror row controller of the recovery of the communication fault;
s106: the first mirror controller sends an exit takeover control instruction to the second mirror controller, and closes the takeover control function;
s107: and the second mirror row controller restores control and manages the heliostat.
Compared with the prior art, the invention has the beneficial effects that:
(1) compared with the traditional control ring network, the number of the mirror controllers required by the network redundancy structure is consistent with the number of the heliostat controllers in the non-redundancy network structure, and compared with the traditional design, the equipment cost is not increased too much.
(2) The network redundancy in the invention can not reduce the number of ring network nodes between the original mirror controllers under the condition of ensuring the communication efficiency.
(3) After one mirror row controller fails, the other mirror row controller controls the two groups of heliostats to control the two heliostat groups one by one according to a preset time sequence so as to reduce the system load of the mirror row controller.
(4) Two mirror row controllers in adjacent ring networks are mutually redundant, namely the mirror row controllers can communicate with two groups of heliostats, and the number of communication cables required by redundancy is reduced to the greatest extent under the condition of realizing communication redundancy.
(5) To further reduce the cost of redundancy, only one communication interface may be designed for all the mirror row controllers and heliostat controllers.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
FIG. 1 is a diagram of a conventional redundant network architecture;
FIG. 2 is a schematic diagram of an arrangement structure of a conventional redundant device in a mirror field;
FIG. 3 is a schematic diagram of a redundant network between rows of mirrors and heliostats in accordance with an embodiment of the present invention;
FIG. 4 is a schematic diagram of an arrangement of heliostat row controllers and heliostats in accordance with an embodiment of the invention;
FIG. 5 is a control flow diagram of redundant switching of two mirroring controllers according to an embodiment of the invention.
Reference numerals:
1-a first mirror row controller, 2-a second mirror row controller, 3-a heliostat, 11-a first communication cable, 21-a second communication cable, 12-a third communication cable, 22-a fourth communication cable, 10-a first control ring network, 20-a second control ring network, 4-a mirror field control server, 5-a network switch.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.
Referring to fig. 1 and 2, fig. 1 is a schematic diagram of a conventional redundant network structure, and fig. 2 is a schematic diagram of an arrangement structure of a conventional redundant device in a mirror field. In a conventional redundant network structure, a mirror field control server 4, a network switch 5 and a mirror controller are generally configured, and a mirror field control server 4, a network switch 5 and a mirror controller that are redundant to the above devices and have mutually exclusive operating states are also configured, wherein the mirror controller and the mirror controller redundant to the mirror controller are distributed in the same network and are generally installed in the same control box.
In the case of ring network load limitation, in the conventional redundancy method, the number of required mirror controllers is twice as many as that of mirror controllers in a normal operating state, so that the number of effectively operating mirror controllers in a single network is reduced by half. In addition, in practical application, when a communication cable between a control box where the mirror row controller is located and the heliostat 3 is damaged, communication between the mirror row controller and the heliostat 3 is still interrupted, so that the conventional redundancy can be understood as that only the application equipment is designed redundantly, and the redundancy is not performed on the actual working process and arrangement structure of the mirror field.
Based on this, the present application provides a mirror field control system. In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 3-5, in a heliostat 3 field system, a network redundancy structure between the specular controllers and the heliostats 3 is arranged, including redundancy of equipment connection relationships and redundancy of actual installation locations.
In the present embodiment, one heliostat group includes a plurality of heliostats 3. In the same control ring network, each mirror row controller respectively controls and manages a plurality of heliostats 3 on one heliostat group through one communication cable; simultaneously, be connected with a plurality of heliostats 3 in another heliostat group through another communication cable, and this heliostat group corresponds has a mirror row controller to be used for control, consequently, can understand, through a communication cable control management a plurality of heliostats 3 of heliostat group, simultaneously, in the control looped netowrk that corresponds with it through another communication cable control, a plurality of heliostats 3 of the corresponding heliostat group. The two mirror row controllers are mutually redundant, so that the communication state of the other heliostat group is monitored while one heliostat group is controlled.
Wherein a plurality of heliostats 3 located in the same communication cable belong to one heliostat group.
The embodiment optimizes the functions of the mirror controllers and reduces the number of communication cables due to the redundant structure through corresponding arrangement structures of the mirror controllers in a mirror field, thereby reducing the cost for realizing the purpose.
The technical scheme is that the mirror field control system comprises a mirror field control server 4 and a network switch 5; in this embodiment, the network further includes a plurality of control ring networks. Each control looped network comprises a plurality of mirror row controllers and heliostat groups in communication connection with the mirror row controllers. In any two control ring networks, one mirror row controller in one control ring network and one mirror row controller in the other control ring network are redundant mutually, so that the mirror row controllers control one heliostat group in the same control ring network and monitor or manage the communication states of the mirror row controllers which are redundant mutually and the heliostat group controlled by the mirror row controllers in the other control ring network.
Therefore, in the network redundancy structure of the present embodiment, the mirror controllers respectively located in the two control ring networks are made redundant with each other. Based on the control method, in the same control ring network, each mirror row controller controls one heliostat group on the basis of not reducing the number of the mirror row controllers. Therefore, in this embodiment, in the same control ring network, each mirror row controller controls one heliostat group respectively on the basis of not increasing the number of the existing mirror row controller devices. Furthermore, on the basis that the heliostat groups in each control ring network are fixed, compared with the traditional control ring network, the embodiment reduces the number of the mirror row controllers, and enables each mirror row controller to be connected with one heliostat group in another control ring network through the communication cable, thereby monitoring/controlling one heliostat group in another control ring network while controlling one heliostat group in the same control ring network by two mirror row controllers in two control ring networks.
Furthermore, each mirror row controller is in communication connection with a plurality of heliostats 3 of one heliostat group in the same control ring network by using one communication cable, and is in communication connection with a plurality of heliostats 3 of one heliostat group in another control ring network by using another communication cable. And then can realize controlling the heliostat group in the same control looped netowrk, simultaneously, monitor or manage the communication state of a heliostat group in another control looped netowrk.
In this embodiment, each device has a redundant design, and mainly includes: each control looped network is connected with a plurality of mirror field controls. Wherein each control ring network is connected with different mutually redundant network switches 5 and connected through different communication cables, thereby realizing the redundancy of the equipment of the network switches 5.
Furthermore, a plurality of network switches 5 are arranged on the same communication cable, and different network switches 5 on the same communication cable are connected with different control ring networks.
In this embodiment, in the same control ring network, each mirror row controller is in communication connection with one heliostat group, and a plurality of heliostats 3 on the heliostat group are connected through the same communication cable, that is, in each control ring network, the number of mirror row controllers corresponding to each heliostat group is one. The plurality of heliostats 3 on the same communication cable are controlled and managed by one mirror controller.
Each mirror row controller still monitors or manages a heliostat group in other control looped networks, and a communication cable is utilized to be in communication connection with a plurality of heliostats 3 of a heliostat group in other control looped networks, and a plurality of heliostats 3 corresponding to the same heliostat group are in communication connection with the same mirror row controller in the same control looped network, so that when each mirror row controller controls the heliostat group in the same control looped network, the mirror row controllers which are redundant with each other in the other control looped network and the communication states of the heliostat groups controlled by the mirror row controllers are monitored or managed.
Therefore, it can be understood that each mirror row controller controls a plurality of heliostats 3 of one heliostat group in the same control ring network by using one communication cable, and also monitors or manages a plurality of heliostats 3 of another heliostat group in another control ring network by using another communication cable, wherein the monitoring of the plurality of heliostats 3 of another control ring network includes monitoring the communication states of the heliostats 3 and the corresponding mirror row controller to determine whether the mirror row controller in communication with the heliostat row controller is in communication abnormality, and if the communication abnormality occurs, the heliostat row controller takes over the heliostat 3 in communication abnormality instead of the corresponding mirror row controller.
In one embodiment, considering cost, any two control ring networks are two adjacent control ring networks, and each mirroring controller is redundant with one mirroring controller in the adjacent control ring network. That is, when a mirror controller fails or communication with a heliostat 3 is abnormal in the same control ring network, the mirror controllers in adjacent control ring networks which are redundant to each other take over control of the heliostat 3.
Referring to fig. 3, it can be seen in the illustrated communication cable connection situation of the two ring networks that a plurality of mirror controllers are provided in each control ring network in the mirror field, and in the same control ring network, each mirror controller is connected to a plurality of heliostats 3 of one heliostat group through one communication cable. In different control looped networks, each mirror row controller also utilizes a communication cable to connect a plurality of heliostats 3 of a heliostat group in the adjacent control looped network, thereby realizing mutual redundancy of the mirror row controllers in different control looped networks.
In the control ring network, the information forwarding capability of the gateway device is inevitably limited, and the number of network nodes in the control ring network needs to be limited, but in this embodiment, a design that two mirror controllers in different control ring networks are redundant to each other is adopted, and the number of the mirror controllers which effectively work in the control ring network is not reduced. Compared with the conventional network redundancy design shown with reference to fig. 1 and 2, on the premise that the total number of the mirror row controllers in the ring network is fixed, the network redundancy design in the same ring network is adopted, so that the number of the mirror row controllers which effectively work is half of the total number. Therefore, in this embodiment, on the premise of not increasing the number of the mirror row controllers in the original non-redundant network structure, the related functions of the conventional mirror row controller are optimized, so that the conventional mirror row controller has the capability of simultaneously controlling two heliostat groups and monitoring the communication states of the heliostat groups.
In this embodiment, the function optimization of the mirroring controller includes: the mirror row controller controls one heliostat group in the same control ring network, and simultaneously monitors or manages the communication state of the heliostat group controlled by the mirror row controller which is redundant with the heliostat group in the other control ring network. The method comprises the step of taking over the heliostat 3 with abnormal communication when monitoring that the heliostat row controllers which are mutually redundant and the heliostats 3 in the controlled heliostat group have abnormal communication.
Referring to fig. 3, in the present embodiment, two adjacent control ring networks composed of a plurality of mirror controllers include a first control ring network 10 and a second control ring network 20, where the corresponding mirror controllers that are redundant to each other include a first mirror controller 1 and a second mirror controller 2. In the same control ring network, the first mirror row controller 1 and the plurality of heliostats 3 in one heliostat group are in communication connection by using the first communication cable 11, and the second mirror row controller 2 and the plurality of heliostats 3 in one heliostat group are in communication by using the second communication cable 21.
Further, the first mirror row controller 1 controls the heliostat 3 on the first communication cable 11, and the second mirror row controller 2 controls the heliostat 3 on the second communication cable 21; meanwhile, the first mirroring controller 1 also monitors the second mirroring controller 2 in the adjacent control ring network and the communication state and the working state of the heliostat 3 controlled by the second mirroring controller 2 through the second communication cable 21, and the second mirroring controller 2 also monitors the communication state and the working state of the first mirroring controller 1 in the adjacent control ring network and the heliostat 3 controlled by the first mirroring controller 1 through the first communication cable 11.
Referring to fig. 4, in the present embodiment, two mirror row controllers that are redundant to each other are located at two ends of the controlled or monitored heliostat group.
In this embodiment, in adjacent control ring networks, mirror controllers that are redundant to each other are arranged at two ends of a controlled or monitored heliostat group. The two mirror row controllers which are redundant to each other are respectively positioned at two ends of the controlled or monitored heliostat group on the arrangement structure of the actual mirror field. Each mirror row controller is respectively connected with two heliostat groups through two communication cables, and the mirror row controllers which are mutually redundant are also respectively connected with the same two heliostat groups through the two communication cables. The first mirror row controller 1 is connected with a first communication cable 11 and a third communication cable 12, the second mirror row controller 2 is connected with a second communication cable 21 and a fourth communication cable 22, a heliostat group controlled by the first mirror row controller 1 in the first control ring network 10 is simultaneously connected with the first communication cable 11 and the fourth communication cable 22, the first mirror row controller 1 is connected by using the first communication cable 11, and the second mirror row controller 2 is connected by using the fourth communication cable 22; the heliostat group controlled by the second mirror row controller 2 in the second control ring network 20 is simultaneously connected with the second communication cable 21 and the third communication cable 12, the second communication cable 21 is connected with the second mirror row controller 2, and the third communication cable 12 is connected with the first mirror row controller 1.
In this embodiment, the first mirror row controller 1, the first communication cable 11, and the heliostats 3 on the first communication cable 11 are controlled by the same set of mirror rows; the second mirror row controller 2 controls the heliostats 3 on the second communication cable 21 and the second communication cable 21 in the same group of mirror rows. The first mirror row controller 1 monitors or manages the heliostats 3 in the same group as the second mirror row controller 2 through the third communication cable 12; the second mirror row controller 2 monitors or manages the heliostats 3 in the same group as the first mirror row controller 1 through the fourth communication cable 22.
In this embodiment, the first communication cable 11 and the fourth communication cable 22 may be arranged in parallel, in actual operation, the first mirror row controller 1 is disposed at one end of the first communication cable 11, the heliostats 3 are distributed on the first communication cable 11, the second mirror row controller 2 is disposed at one end of the fourth communication cable 22, and the heliostats 3 distributed on the fourth communication cable 22 are the same as the heliostats 3 distributed on the first communication cable 11, so that it can be understood that the first mirror row controller 1 and the second mirror row controller 2 are disposed at two ends of the connected heliostat group.
In this embodiment, in two adjacent control ring networks, two heliostat groups controlled or monitored by two redundant mirror row controllers are distributed in a staggered manner. In this example, when the heliostat row controllers and heliostats 3 are arranged, the heliostats 3 controlled by the first heliostat row controller 1 and the heliostats 3 controlled by the second heliostat row controller 2 may be arranged in a staggered manner in a row or a ring in the heliostat field. For example, in a square mirror field, the heliostats 3 are arranged in a straight line in the mirror field, the heliostats 3 on the first communication cable 11 are controlled and managed by the first mirror row controller 1 at the end of the first communication cable 11, and the heliostats 3 on the second communication cable 21 are controlled and managed by the second mirror row controller 2 at the end of the second communication cable 21. Through the scheme, the purpose of realizing the purpose of using the minimum cable quantity is achieved, and the network redundancy arrangement structure in the technical scheme is achieved.
In this embodiment, when the mirror row controller controls and manages two heliostat groups simultaneously, the two heliostat groups are controlled one by one according to a preset time sequence, so as to reduce the system load of the mirror row controller at the same time.
In addition, in this embodiment, when the second mirror row controller 2 fails to operate and cannot normally communicate with the same communication cable heliostat 3 in the same control ring network, the first mirror row controller 1 needs to control the heliostat 3 in the same control ring network and the heliostat 3 in another control ring network at the same time, and in order to reduce the carrying load of the first mirror row controller 1, the first mirror row controller 1 controls two heliostat groups one by one according to a preset time sequence, so as to reduce the system load of the first mirror row controller 1 at the same time.
The specific implementation method comprises the following steps: when the second mirror controller 2 fails or the communication between the heliostat 3 and the same communication cable in the control ring network is abnormal, the first mirror controller 1 takes over the heliostat 3 with the abnormal communication controlled by the second mirror controller 2. In the nth second, the first mirroring controller 1 controls the heliostat 3 on the first communication cable 11 through the first communication cable 11, and in the (N + 1) th second, the first mirroring controller 1 controls the heliostat 3 with communication abnormality in another control ring network through the third communication cable 12.
In addition to the redundancy of the network structure, there is of course also the redundancy of the device interfaces. In this embodiment, for different communication cables, one network communication interface or two network communication interfaces may be adopted according to the physical characteristics of the bus.
In one embodiment, each mirror row controller is provided with a network communication interface, and the mirror row controllers are connected with a plurality of heliostats 3 of a heliostat group in the same control ring network through one network communication interface and are also connected with a plurality of heliostats 3 of a heliostat group in another control ring network. That is, a plurality of heliostats 3 on one communication cable are controlled through one network communication interface, and the communication state between a plurality of heliostats 3 on the other communication cable and the mirroring controller in the control loop network is monitored.
In another embodiment, each mirror row controller is provided with two network communication interfaces, and the mirror row controller is connected with the plurality of heliostats 3 of one heliostat group in the same control ring network through one of the network communication interfaces and is connected with the plurality of heliostats 3 of one heliostat group in the other control ring network through the other communication interface. One network communication interface is used for controlling a plurality of heliostats 3 on the same communication cable, and the other network communication interface is used for monitoring the communication states of the plurality of heliostats 3 on the other communication cable and the mirror controllers in the control ring network. When the RS485 is used as a network communication interface, the mirror controller is required to configure two RS485 communication interfaces which are not connected with each other, one network communication interface is used for connecting and controlling a plurality of heliostats 3 on the same communication cable, and the other network communication interface is used for connecting and monitoring/managing a plurality of heliostats 3 on the other communication cable.
In the present embodiment, the heliostat group includes a plurality of heliostats 3; when the heliostat 3 is provided with a communication interface; the heliostat 3 is connected with a mirror controller in the same control ring network through a communication interface, and meanwhile, the communication interface is also connected with a mirror controller of another control ring network. When two communication interfaces are arranged on the heliostat 3, the heliostat 3 is connected with one mirroring controller in the same control ring network through one communication interface and is connected with one mirroring controller in the other control ring network through the other communication interface.
An application example of the mirror field control system includes a first control ring network 10 and a second control ring network 20; the first control ring network 10 comprises a first mirror row controller 1 and a heliostat group communicated with the first mirror row controller 1; the second control ring network 20 includes a second mirror row controller 2 and a heliostat group communicating with the second mirror row controller 2.
In this example, in the first mirror row controller 1 and the second mirror row controller 2 which are redundant to each other, when the first mirror row controller 1 monitors that the second mirror row controller 2 has a fault and/or communication with the heliostat 3 in the common control ring network is abnormal, the first mirror row controller 1 takes over control of the heliostat 3 with the abnormal communication by replacing the second mirror row controller 2.
The first mirror row controller 1 monitors that the heliostat 3 controlled by the second mirror row controller 2 and the second mirror row controller 2 have communication abnormity, namely the second mirror row controller 2 has a fault or the second communication cable 21 has a fault, so that the communication connection of the heliostat 3 controlled by the second mirror row controller 2 has abnormity; further, the first mirror controller 1 takes over the heliostat 3 controlled by the second mirror controller 2 and having a communication abnormality by using the third communication cable 12.
Of course, the second mirror row controller 2 may monitor that the heliostat 3 controlled by the first mirror row controller 1 and the first mirror row controller 1 are in communication abnormality, that is, the first mirror row controller 1 is in failure, or the first communication cable 11 is in failure, so that the communication connection of the heliostat 3 controlled by the first mirror row controller 1 is in abnormality; further, the second mirror row controller 2 uses the fourth communication cable 22 to take over the heliostat 3 controlled by the first mirror row controller 1 and having abnormality.
When a disconnection occurs at a certain position in the second communication cable 21, then, the heliostat 3 can still be communicated with the part on the second mirror row controller 2 and the second communication cable 21, and will continue to be controlled and managed by the second mirror row controller 2, and the heliostat 3 which is abnormally communicated with the second mirror row controller 2 will take over the control by the first mirror row controller 1 because the communication state with the first mirror row controller 1 through the third communication cable 12 is normal for the other heliostats 3 which cannot communicate due to the line interruption.
In addition, when the second mirror row controller 2 fails to work normally due to power supply or other failure, and loses the control function, all heliostats 3 controlled by the second mirror row controller 2 through the second communication cable 21 will be taken over by the first mirror row controller 1 through the third communication cable 12.
Referring to fig. 5, in the process from disconnection of a communication cable or a fault of a mirror controller to communication restoration or mirror controller restoration, in the first mirror controller 1 and the second mirror controller 2 which are redundant to each other, the management method when a communication fault occurs includes the following steps:
s101: the first mirror row controller 1 monitors the second mirror row controller 2 and the communication state of the heliostat group controlled by the second mirror row controller 2. Of course, it may be: the second mirror row controller 2 monitors the first mirror row controller 1 and the communication state of the heliostat group controlled by the first mirror row controller 1.
The heliostat group comprises a plurality of heliostats 3, and the heliostats 3 are in communication connection with the corresponding first mirror row controller 1/second mirror row controller 2, so that the first mirror row controller 1/second mirror row controller 2 correspondingly controls each heliostat 3.
S102: when monitoring that the communication between the second mirror row controller 2 and the heliostat 3 controlled by the second mirror row controller is abnormal, the first mirror row controller 1 sends an inquiry instruction to the second mirror row controller 2 to determine the communication fault between the second mirror row controller 2 and the heliostat 3 controlled by the second mirror row controller;
s103: the first mirror row controller 1 takes over and controls the heliostat 3 which is abnormally communicated with the second mirror row controller 2;
s104: the first mirror controller 1 periodically sends a query instruction to the second mirror controller 2;
s105: after the communication fault of the second mirror row controller 2 and the controlled heliostat 3 is recovered, receiving and responding to a query instruction which is fed back and periodically sent by the first mirror row controller 1 so as to inform the first mirror row controller 1 of the recovery of the communication fault;
that is, the mirror row controller having a failure or communication abnormality cancels the failure and normally communicates with the heliostat 3, and then feeds back the failure to the mirror row controller that takes over the heliostat 3, so that the mirror row controller resumes control of the subordinate heliostat 3.
S106: the first mirror controller 1 sends an exit takeover control instruction to the second mirror controller 2, and closes the takeover control function;
s107: the second mirror row controller 2 resumes control of the heliostat 3.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (7)
1. The utility model provides a mirror field control system, includes mirror field control server, network switch, its characterized in that still includes: a plurality of control ring networks;
each control ring network comprises a plurality of mirror row controllers and a heliostat group in communication connection with each mirror row controller;
in any two control ring networks, one mirror row controller in one control ring network and one mirror row controller in the other control ring network are redundant mutually, and the two mirror row controllers which are redundant mutually are respectively positioned at two ends of the controlled or monitored heliostat group, so that the mirror row controllers can monitor or manage the communication states of the mirror row controllers which are redundant mutually and the heliostat group controlled by the mirror row controllers in the other control ring network while controlling the corresponding heliostat group in the same control ring network; and when the mirror row controller simultaneously controls the two heliostat groups, the two heliostat groups are controlled one by one according to a preset time sequence.
2. The mirror field control system according to claim 1, wherein the number of mirror row controllers corresponding to each heliostat group in the same control ring network is one.
3. The mirror field control system of claim 1, wherein any two of said control loops are two adjacent control loops, each of said mirror controllers being redundant to one of said mirror controllers in an adjacent control loop.
4. A mirror field control system according to claim 3, wherein two heliostat groups controlled or monitored by two mirror row controllers redundant to each other in two adjacent control ring networks are distributed in a staggered manner with respect to each other.
5. A mirror field control system according to any of the claims 1-4, characterized in that the mirror row controller is provided with one network communication interface or two network communication interfaces;
when a network communication interface is arranged on the mirror row controller, the mirror row controller is connected with one heliostat group in the same control ring network through the network communication interface, and meanwhile, the network communication interface is also connected with one heliostat group in the other control ring network;
when two network communication interfaces are arranged on the mirror row controller, the mirror row controller is connected with one heliostat group in the same control ring network through one network communication interface, and is connected with one heliostat group in the other control ring network through the other network communication interface.
6. The mirror field control system of claim 5, wherein the set of heliostats comprises a plurality of heliostats;
when the heliostat is provided with a communication interface, the heliostat is connected with one mirroring controller in the same control ring network through one communication interface, and meanwhile, the communication interface is also connected with one mirroring controller of another control ring network;
when the heliostat is provided with two communication interfaces, the heliostat is connected with one mirror controller in the same control ring network through one communication interface and is connected with one mirror controller of the other control ring network through the other communication interface.
7. A mirror field control method, characterized in that, a mirror field control system according to any one of claims 1 to 6 is adopted, the mirror field control system comprises a first mirror controller and a second mirror controller, and the first mirror controller and the second mirror controller are located on different control ring networks; the method implemented by the mirror field control system comprises the following steps:
s101: the first mirror row controller monitors the second mirror row controller and the communication state of the heliostat group controlled by the second mirror row controller, and meanwhile, the second mirror row controller monitors the first mirror row controller and the communication state of the heliostat group controlled by the first mirror row controller;
s102: when monitoring that the communication between the second mirror row controller and the heliostat controlled by the second mirror row controller is abnormal, the first mirror row controller sends a query instruction to the second mirror row controller so as to determine the communication fault between the second mirror row controller and the controlled heliostat;
s103: the first mirror row controller takes over and controls the heliostat with abnormal communication with the second mirror row controller;
s104: the first mirror controller periodically sends a query instruction to the second mirror controller;
s105: after the communication fault between the second mirror row controller and the controlled heliostat is recovered, receiving and responding to a query instruction which is fed back periodically by the first mirror row controller so as to inform the first mirror row controller of the recovery of the communication fault;
s106: the first mirror controller sends an exit takeover control instruction to the second mirror controller, and closes the takeover control function;
s107: and the second mirror row controller restores control and manages the heliostat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911387450.XA CN110768883B (en) | 2019-12-30 | 2019-12-30 | Mirror field control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911387450.XA CN110768883B (en) | 2019-12-30 | 2019-12-30 | Mirror field control system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110768883A CN110768883A (en) | 2020-02-07 |
| CN110768883B true CN110768883B (en) | 2020-04-17 |
Family
ID=69341686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911387450.XA Active CN110768883B (en) | 2019-12-30 | 2019-12-30 | Mirror field control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110768883B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217957A (en) * | 2013-03-27 | 2013-07-24 | 中国电力工程顾问集团西北电力设计院 | Heliostat field control system of tower type solar power plant |
| CN209373411U (en) * | 2019-01-30 | 2019-09-10 | 青岛鸿瑞电力工程咨询有限公司 | A kind of large and medium-sized control system of heliostat control network structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927953B (en) * | 2010-07-05 | 2019-02-15 | 玻点太阳能有限公司 | Solar energy directly generates steam |
| CN204721370U (en) * | 2015-05-08 | 2015-10-21 | 浙江中控太阳能技术有限公司 | A kind of tower type solar energy thermal power generation station heliostat field control system |
| CN108696417A (en) * | 2017-04-12 | 2018-10-23 | 中兴通讯股份有限公司 | Business switch method in backup network and device |
| CN109743645B (en) * | 2019-01-08 | 2024-01-09 | 北京能脉科技有限公司 | Large-scale mirror field control system network architecture based on tower type photo-thermal power station |
-
2019
- 2019-12-30 CN CN201911387450.XA patent/CN110768883B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217957A (en) * | 2013-03-27 | 2013-07-24 | 中国电力工程顾问集团西北电力设计院 | Heliostat field control system of tower type solar power plant |
| CN209373411U (en) * | 2019-01-30 | 2019-09-10 | 青岛鸿瑞电力工程咨询有限公司 | A kind of large and medium-sized control system of heliostat control network structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110768883A (en) | 2020-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101873007B (en) | Micro-grid relay protection and automation integrated intelligent protection system | |
| JP5585288B2 (en) | Wind power generation system and power generation output schedule control method for wind power generation system | |
| CN202712883U (en) | Battery management system suitable for plurality of lithium battery packs connected in parallel | |
| CN105406599B (en) | A kind of level of factory AGC accesses the redundancy structure method of power monitoring network | |
| CN110768883B (en) | Mirror field control system and method | |
| CN104916856A (en) | Energy storage system capable of increasing operational reliability of flow battery and method thereof | |
| KR102040063B1 (en) | Energy storage system and method | |
| KR100895839B1 (en) | Remote Terminal Unit for trading power to support multi-master function using dual channel ring and Management Method thereof | |
| CN111711583B (en) | Switch supporting configuration of multiple redundancy protocols and transformer substation network system | |
| CN102760504A (en) | Digital control system for all plant units in nuclear power station and non-nuclear-grade control system and method | |
| CN204721370U (en) | A kind of tower type solar energy thermal power generation station heliostat field control system | |
| CN205104918U (en) | Big power convertor principal and subordinate control system | |
| CN107623330B (en) | Control method of valve base control system | |
| CN115149526B (en) | Distributed feeder automatic power supply recovery method for planned island of active power distribution network | |
| CN109743645A (en) | A kind of extensive mirror station control system network architecture based on tower photo-thermal power station | |
| CN114050655A (en) | Power distribution network self-healing system and method based on 5G communication technology | |
| CN213517922U (en) | Single-ring network structure for handling communication double breakpoints of control system of nuclear power plant | |
| Dong et al. | A service restoration strategy for active distribution network based on multiagent system | |
| CN113690936A (en) | Energy storage energy router of multiport | |
| CN113890120A (en) | AC-DC power distribution system based on flexible interconnection device and energy flow method | |
| CN113852659A (en) | Distributed energy source cold, heat and power active variable working condition optimization regulation and control method and system based on edge calculation | |
| CN112531890A (en) | Main/standby switching method and switching device for energy storage coordination controller | |
| CN212749616U (en) | Internet-based gas distributed energy multi-machine remote intelligent control system | |
| TWI565222B (en) | Solar power generation system having a backup inverter | |
| CN113839417B (en) | Power coordination control method based on photovoltaic station stability control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 310018 1-2603, No. 501, No. 2 street, Baiyang street, Hangzhou Economic and Technological Development Zone, Zhejiang Province Patentee after: Zhejiang Kesheng Technology Co.,Ltd. Address before: 310053 8 and 9 floors of No. 307 Liuhe Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG SUPCON SOLAR ENERGY TECHNOLOGY Co.,Ltd. |