CN111756063B - Solar control unit and control method thereof, and solar parallel operation system and control method thereof - Google Patents

Solar control unit and control method thereof, and solar parallel operation system and control method thereof Download PDF

Info

Publication number
CN111756063B
CN111756063B CN202010531758.3A CN202010531758A CN111756063B CN 111756063 B CN111756063 B CN 111756063B CN 202010531758 A CN202010531758 A CN 202010531758A CN 111756063 B CN111756063 B CN 111756063B
Authority
CN
China
Prior art keywords
control unit
solar
host
solar control
parallel operation
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
Application number
CN202010531758.3A
Other languages
Chinese (zh)
Other versions
CN111756063A (en
Inventor
陈勇
杨桂贤
梁耀辉
彭彪
李珂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Shuorixin Energy Technology Co.,Ltd.
Original Assignee
Shenzhen Shuori New Energy Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Shuori New Energy Technology Co ltd filed Critical Shenzhen Shuori New Energy Technology Co ltd
Priority to CN202010531758.3A priority Critical patent/CN111756063B/en
Publication of CN111756063A publication Critical patent/CN111756063A/en
Application granted granted Critical
Publication of CN111756063B publication Critical patent/CN111756063B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • 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
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • 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
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Factory Administration (AREA)
  • Selective Calling Equipment (AREA)

Abstract

The invention relates to the field of solar control, in particular to a solar control unit and a control method thereof, and a solar parallel operation system and a control method thereof. The control method of the solar parallel operation system comprises the following steps: the solar control unit and the parallel unit both acquire a host replacement instruction from the MESH network; judging whether the solar control unit can be replaced by a host; if yes, a replaceable solar control unit is set as a new master computer, and the parallel operation unit is set as a slave computer. And each solar control unit and the parallel unit can communicate with each other to form an MESH network. In the solar parallel operation system, when the host is abnormal, the solar control unit serving as the slave can be automatically replaced by a new host, the original abnormal host is replaced by the slave, and the new host controls the work of the whole system, so that the normal work of the whole system is ensured, the working performance of the system is stabilized, complex wiring is not needed, and the maintenance is convenient.

Description

Solar control unit and control method thereof, and solar parallel operation system and control method thereof
Technical Field
The invention relates to the field of solar control, in particular to a solar control unit and a control method thereof, and a solar parallel operation system and a control method thereof.
Background
Solar energy is a renewable energy source, and solar power generation is widely applied to industries such as industry and agriculture. In application of solar energy, a plurality of solar controllers are used in parallel to form a solar parallel operation system.
In the existing solar parallel operation system, a plurality of solar control units are combined to form the system, wherein one solar control unit is used as a master machine to perform unified management and control on the system, and the other solar control units are used as slave machines. The parallel operation mode is based on wired connection of RS485, RS232 and the like; the parallel operation among the solar control units needs two connection communication cables, the wiring is complex and troublesome, the error is easy to occur, and the maintenance is inconvenient.
In addition, in the parallel operation mode of the solar parallel operation system, the host computer is unique and cannot be automatically changed, and the control is not flexible. Due to the influence of various factors such as environment, hardware and the like, a set host computer is required to be ensured to be in a stable working state for a long time, once the host computer is abnormal, a new host computer cannot be generated in a unit to carry out unified management and control on the system, and the abnormal host computer still controls the system, so that the normal work of the whole solar parallel operation system can be directly influenced, or the working performance of the whole system is reduced, and even the system is paralyzed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a solar control unit and a control method thereof, a solar parallel operation system and a control method thereof, aiming at the above defects in the prior art, so as to solve the problems of complicated wiring, inconvenient maintenance, easy occurrence of abnormal work and reduced system performance of the existing solar parallel operation system.
The technical scheme adopted by the invention for solving the technical problems is as follows: a control method of solar control units is provided, at least two solar control units can communicate with each other to form an MESH network, and the control method comprises the following steps:
the solar control unit acquires a host replacement command from the MESH network;
judging whether the solar control unit can be replaced to be set as a host or not;
and if so, setting the solar control unit as a new host.
Further preferred embodiments of the present invention are: the setting of the solar control unit as a new host comprises the steps of:
acquiring an address numerical value of the solar control unit;
decrementing the address value;
judging whether the address value is decreased to a preset value first;
and if so, setting the solar control unit as a new host.
Further preferred embodiments of the present invention are: the setting the solar control unit as a new host further comprises the steps of:
judging whether the current time is a preset time or not;
and if so, the solar control unit sends the data of the solar control unit to the MESH network.
Further preferred embodiments of the present invention are: the corresponding address values of the solar control units are different, and each address value is larger than zero.
Further preferred embodiments of the present invention are: the method for acquiring the command of replacing the host from the MESH network by the solar control unit comprises the following steps:
the solar control unit acquires a data packet from the MESH network;
and analyzing the data packet to obtain a command for replacing the host.
Further preferred embodiments of the present invention are: the step of judging whether the solar control unit can be replaced and set as a host computer or not comprises the following steps:
judging whether the solar control unit meets the charging requirement or not;
if the charging requirement is met, the replaceable setting is judged as the host;
if the charging requirement is not met, the host is judged to be not replaceable.
The technical scheme adopted by the invention for solving the technical problems is as follows: the solar control unit comprises a wireless communication module with a MESH networking function and a controller, wherein the wireless communication module is used for acquiring a command of replacing a host from a MESH network, and the controller is connected with the wireless communication module and controls to execute the steps of the control method of the solar control unit.
The technical scheme adopted by the invention for solving the technical problems is as follows: the parallel operation unit and each solar control unit are mutually communicated and connected to form an MESH network, each solar control unit is set as a slave, and the parallel operation unit is set as a master and is changed into the slave after acquiring a command of changing the master.
The technical scheme adopted by the invention for solving the technical problems is as follows: the control method of the solar parallel operation system is applied to the solar parallel operation system, and comprises the following steps:
the solar control unit and the parallel unit both acquire a host replacement instruction from the MESH network;
judging whether the solar control unit can be replaced by a host;
if yes, a replaceable solar control unit is set as a new master computer, and the parallel operation unit is set as a slave computer.
Further preferred embodiments of the present invention are: the control method of the solar parallel operation system further comprises the following steps:
judging whether the parallel unit works normally or not;
if not, the parallel machine unit sends a data packet to the MESH network, and the data packet comprises a command of replacing the host.
Compared with the prior art, the MESH network is formed by the mutual communication and connection between each solar control unit and the parallel machine unit, when the host is abnormal, the solar control unit serving as the slave machine can be automatically replaced by a new host machine, the original abnormal host machine is replaced by the slave machine, the new host machine is used for controlling the work of the whole system, the normal work of the whole system is ensured, the working performance of the system is stabilized, complex wiring is not needed, and the maintenance is convenient.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a block flow diagram of a control method of a solar control unit of the present invention;
FIG. 2 is a block flow diagram of step S10 of the control method of the solar control unit of the present invention;
FIG. 3 is a block flow diagram of step S30 of the control method of the solar control unit of the present invention;
FIG. 4 is a block diagram of the solar control unit of the present invention;
FIG. 5 is a block diagram of the solar parallel operation system of the present invention;
FIG. 6 is a block diagram of the parallel operation unit of the present invention;
FIG. 7 is a flow chart diagram of a control method of the solar parallel operation system of the present invention;
FIG. 8 is a block flow diagram of one embodiment of a method for controlling a solar parallel operation system of the present invention;
fig. 9 is a schematic diagram of the information transmission process of the solar parallel operation system of the present invention.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides a preferred embodiment of a control method of a solar control unit.
The method for controlling the solar control units comprises the following steps of:
s10, the solar control unit obtains the command of replacing the host from the MESH network;
s20, judging whether the solar control unit can be replaced and set as a host;
and S30, if yes, setting the solar control unit as a new host.
In the solar parallel operation system, the solar control unit can be set as a slave machine and is mutually connected with the master machine in a communication way to form an MESH network. According to the control method of the solar control unit, when the host is abnormal, the solar control unit can be automatically replaced and set as a new host in the above mode, the new host uniformly controls the work of the whole solar parallel operation system, the normal work of the whole system is guaranteed, the working performance of the system is stabilized, complex wiring is not needed, and the maintenance is convenient.
When the host is abnormal, the host or the external control end can send a command for replacing the host to the MESH network. No matter the main machine cannot be charged due to the sun rays or hardware faults and the like, a solar control unit can be replaced in time to serve as a new main machine, and the whole solar parallel operation system is continuously managed and controlled. As long as the new host computer has no abnormity and meets the charging requirement, the operation of the whole system is always controlled.
The MESH network is a type of wireless local area network, and is a MESH network, also called a multi-hop (multi-hop) network. In the MESH network, all nodes are connected with each other, each node has a plurality of connecting channels, and all nodes form an integral network. MESH networks differ from conventional slave router systems in that in MESH networks, each node is not a conventional wireless repeater and each node has multiple connection paths. When a certain line is blocked or has no response, the wireless mesh network can select other lines for data transmission according to the situation, and the network access of other units forming the network cannot be influenced by any node fault, so that the reliability is very high. The solar control units forming the MESH network are all used as one node in the MESH network, and data can be transmitted through the MESH network in pairs, when any one of the nodes goes wrong, the data can still be transmitted through a connecting channel formed by other nodes, so that the normal work of the whole system is ensured, complex wired cable wiring is not needed, and the maintenance is convenient.
Referring to fig. 2, in this embodiment, step S10 specifically includes the following steps:
s11, the solar control unit acquires a data packet from the MESH network;
and S12, analyzing the data packet to obtain a command for replacing the host.
In the MESH network, no matter which node has a problem, the solar control unit can acquire the data packet from the MESH network and analyze the data packet, so that a command for replacing the host is acquired, and the abnormal host is replaced in time.
In this embodiment, step S20 specifically includes the following steps:
judging whether the solar control unit meets the charging requirement or not;
if the charging requirement is met, the replaceable setting is judged as the host;
if the charging requirement is not met, the host is judged to be not replaceable.
The charging requirements comprise that the voltage value reaches a value capable of supplying power, the temperature protection is normal, the current sampling and the overcurrent protection are normal, and the like. The solar control unit meets the charging requirement, the solar control unit can be replaced by the host machine when the solar control unit is regarded as the host machine, and the whole system can be controlled to normally work after the solar control unit is replaced by the host machine.
Referring to fig. 3, in the present embodiment, step S30 includes the following steps:
s31, acquiring an address value of the solar control unit;
s32, decreasing the address value;
s33, judging whether the address value is first decreased to a preset value;
and S34, if yes, setting the solar control unit as a new host.
The solar control units are different in corresponding address value, and each address value is larger than zero. In the solar parallel operation system, a plurality of solar control units are used as slave machines of the solar parallel operation system, and only one slave machine is selected to be replaced as a new and unique master machine. Because the address values of the slave machines are different, only one slave machine corresponding to the address value which is firstly decreased to the preset value is selected in the mode of decreasing the address value, so that one slave machine is screened out to be used as the only master machine, and the whole system can be controlled to normally work.
Further, step S30 further includes the steps of:
judging whether the current time is a preset time or not;
and if so, the solar control unit sends the data of the solar control unit to the MESH network.
The data of the solar control unit can comprise current data, voltage data, temperature data, control instructions of the whole solar parallel operation system and the like acquired in the solar charging control process. The sending of the data to the MESH network by the solar control unit may be performed after the host is replaced with the host and when a preset time is reached, or may be performed while the host is replaced with the MESH network.
The present invention also provides a preferred embodiment of a solar control unit 10, as shown in fig. 4.
The solar control unit 10 comprises a wireless communication module 11 with a MESH networking function and a controller 12, wherein the wireless communication module 11 is used for acquiring a command of replacing a host from a MESH network, and the controller 12 is connected with the wireless communication module 11 and controls and executes the steps of the control method of the solar control unit 10. The wireless communication module 11(21) is one of a bluetooth module, a 433M module, and a 470M module. Preferably, the wireless communication module 11(21) in this embodiment adopts a bluetooth module with MESH networking function. The controller 12(22) may be built in the bluetooth module or may be provided independently of the bluetooth module.
Based on the above-mentioned control method of the solar control units 10, at least two solar control units 10 can be connected with each other through the wireless communication module 11 to form an MESH network, and perform transmission of data, instructions and the like, without complex wiring, and the maintenance is convenient. When the host is abnormal, the controller 12 can control the solar control unit 10 to be automatically replaced and set as a new host by the solar control unit 10, so that the new host uniformly controls the work of the whole solar parallel operation system, the normal work of the whole system is ensured, and the working performance of the system is stabilized.
As shown in fig. 5, the present invention also provides a preferred embodiment of a solar parallel operation system.
The solar parallel operation system comprises at least one solar control unit 10 and a parallel operation unit 20, wherein the parallel operation unit 20 and each solar control unit 10 are mutually communicated and connected to form an MESH network, each solar control unit 10 is set as a slave, and the parallel operation unit 20 is set as a master and is replaced and set as a slave after acquiring a command of replacing the master. Based on the solar control unit 10, communication connection can be performed between the master and the slave of the solar parallel operation system, and between the slave and the slave through the MESH network, no complex wiring is needed, maintenance is convenient, and the solar control unit 10 can be automatically replaced and set as a new master when the master is abnormal, the parallel operation unit 20 serving as the original master is replaced by the slave, the new master is used for uniformly controlling the operation of the whole solar parallel operation system, the normal operation of the whole system is ensured, and the working performance of the system is stabilized.
The parallel operation unit 20 has the same structural composition as the solar control unit 10, that is, includes a wireless communication module 11(21) with MESH networking function and a controller 12(22), where the wireless communication module 11(21) is used to obtain a command for replacing a host from a MESH network, and the controller 12(22) is connected to the wireless communication module 11 (21). When the host is abnormal after the parallel operation unit 20 is normally maintained, the parallel operation unit 20 can also obtain a command for replacing the host, and determine whether the host can be replaced by itself, or if so, the host can be replaced by a new host.
Further, referring to fig. 6, the parallel operation unit 20 further includes a photovoltaic module 23, a charge driving module 24, a charge current sampling module 25, a temperature sampling module 26, a storage battery 27, and a liquid crystal panel 28, which are all connected to the controller 12 (22). The controller 12(22) controls the photovoltaic module 23 to output charging voltage and charging current through the charging driving module 24 to charge the storage battery 27; the charging voltage of the photovoltaic 23 and the voltage of the storage battery 27 are obtained through sampling control, and the charging current of the storage battery 27 is subjected to real-time sampling and overcurrent protection through the charging current sampling module 25; the control temperature sampling module 26 collects and acquires a temperature signal of the system, and performs real-time monitoring and temperature protection on the temperature of the whole system. In addition, the controller 12(22) also controls the liquid crystal screen 28 to display the operation parameters and the setting parameters of the whole system in real time.
The controller 12(22) performs software algorithm processing according to the set parameters, the photovoltaic charging voltage, the charging current, the storage battery voltage, the temperature signal and other information acquired in real time, calculates the output control quantity, transmits the output control quantity to the charging driving module 24, realizes the charging control management of the storage battery 27, and adjusts the output control quantity in real time through the software algorithm according to the real-time acquisition feedback of the data, so that the charging driving module 24 outputs stably.
When the parallel operation unit 20 is abnormal, the solar control unit 10 meeting the charging requirement is replaced with a host, and the control of the whole system is the same as the control of the parallel operation unit 20.
As shown in fig. 7, the present invention also provides a preferred embodiment of a control method of a solar parallel operation system.
The control method of the solar parallel operation system is applied to the solar parallel operation system.
The control method of the solar parallel operation system comprises the following steps:
s300, the solar control unit and the parallel unit acquire a host replacement command from the MESH network;
s400, judging whether the solar control unit can be replaced by a host;
and S500, if so, setting a replaceable solar control unit as a new master machine, and setting the parallel machine unit as a slave machine.
In the solar parallel operation system, each solar control unit and each parallel operation unit are mutually communicated and connected to form an MESH network, data and instructions are transmitted through the MESH network without complex wiring, when the host is abnormal, the solar control unit serving as a slave can be automatically replaced by a new host, the parallel operation unit which originally has the abnormality as the host is replaced by the slave, the new host controls the work of the whole system, the normal work of the whole system is ensured, and the working performance of the system is stabilized.
Further, the control method of the solar parallel operation system further comprises the following steps:
s100, judging whether the parallel unit works normally or not;
s200, if not, the parallel machine unit sends a data packet to the MESH network, and the data packet comprises a command of replacing the host.
When the parallel operation unit serving as the host is abnormal, the abnormality can be fed back in time, and a data packet is sent to the MESH network, so that the solar parallel operation system can automatically and timely replace a new host to control the whole system to work, and the normal operation of the system is ensured. The parallel operation unit acquires the command of replacing the host from the MESH network, which can be regarded as feedback information made after the parallel operation unit receives the exception of the solar parallel operation system, and the parallel operation unit immediately replaces the slave after acquiring the information from the MESH network.
Referring to fig. 8, the following describes the control method of the solar parallel operation system according to an embodiment of the present invention in detail:
the master and each slave enter the following event processing at regular time:
s101, judging whether a new host is being searched or not; s102, the numerical value M of the local address is decreased in a timing mode, and whether M is decreased to be equal to 1 first is judged; s103, incrementing a counter T, and judging whether the T is incremented to one half of a period T of sending a data packet by the system; s104, sending a parallel machine data packet to an MESH network, after continuously sending for Y times, exiting from a host searching mechanism, resetting a sign NewHost, and replacing a slave machine with a host machine; s105, judging whether the current host is the host or not; s106, judging whether the period T of sending the data packet by the system is reached; s107, sending a parallel operation data packet to the MESH network; s108, analyzing the parallel operation data packet to identify whether the host is charged; s109, judging whether the slave machine meets the charging requirement; s110, setting a host computer re-searching mark NewHost to be equal to 1, acquiring a numerical value of a local address, and assigning the numerical value to M; and S111, returning.
The specific implementation process of the steps is as follows: executing step S101, if yes, executing step S102, and if no, executing step S105; executing step S102, if yes, executing step S103, and if no, executing step S111; executing step S103, if yes, executing step S104, and if no, executing step S111; step S105 is executed, if yes, step S106 is executed, and if no, step S108 is executed; executing step S106, if yes, executing step S107, and if no, executing step S111; step S108 is executed, if yes, step S111 is executed, and if no, step S109 is executed; step S109 is executed, and if yes, step S110 is executed, and if no, step S111 is executed.
In step S101, it may be determined that a new host is being sought when NewHost is equal to 1 by setting a variable NewHost. In steps S102 and S110, the local device refers to a master device or a slave device, and if the local device is the master device, the local address is the address of the master device, and if the local device is the slave device, the local address is the address of the slave device. The period T in step S103 refers to the time for sending the data packet to the MESH network twice. In step S111, the return means that the master and the slave return to the operating state before the event processing is performed. In step 104, step 107 and step 108, the parallel machine packet refers to data such as local operation data and control commands for the entire system.
In addition, referring to fig. 9, fig. 9 is a schematic diagram of an information sending process in the solar parallel operation system. The parallel machine information may include the parallel machine data packet and the data packet of the replacement host command. The time interval of sending the parallel machine information by the host computer every two times is a period T, if the parallel machine information comprises a data packet of a command of replacing the host computer, the slave computer which can be replaced by the host computer is replaced by a new host computer when the time is one half of the period, the data of the slave computer is sent to the MESH network, and the original host computer is replaced by the slave computer.
It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some technical features; and all such modifications and alterations are intended to fall within the scope of the appended claims.

Claims (7)

1. A control method of solar control units, wherein at least two solar control units can communicate with each other to form an MESH network, the control method comprises the following steps:
the solar control unit acquires a host replacement command from the MESH network;
judging whether the solar control unit can be replaced to be set as a host or not;
if yes, setting the solar control unit as a new host;
the method for replacing the host computer by the solar control unit comprises the following steps of:
the solar control unit acquires a data packet from the MESH network;
analyzing the data packet to obtain a command for replacing the host;
wherein, the judging whether the solar control unit can be replaced and set as a host computer comprises the following steps:
judging whether the solar control unit meets the charging requirement or not;
if the charging requirement is met, the replaceable setting is judged as the host;
if the charging requirement is not met, the host is judged to be not replaceable;
wherein the setting of the solar control unit as a new host comprises the steps of:
acquiring an address numerical value of the solar control unit;
decrementing the address value;
judging whether the address value is decreased to a preset value first;
and if so, setting the solar control unit as a new host.
2. The control method of claim 1, wherein said setting said solar control unit as a new master further comprises the steps of:
judging whether the current time is a preset time or not;
and if so, the solar control unit sends the data of the solar control unit to the MESH network.
3. The control method according to claim 1, wherein the address values corresponding to different solar control units are different, and each address value is greater than zero.
4. A solar control unit, comprising a wireless communication module with MESH networking function and a controller, wherein the wireless communication module is used for obtaining a command for replacing a host from a MESH network, and the controller is connected with the wireless communication module and controls the execution of the steps of the control method of the solar control unit according to any one of claims 1 to 3.
5. A solar parallel operation system, which comprises at least one solar control unit according to claim 4 and a parallel operation unit, wherein the parallel operation unit and each solar control unit are mutually communicated and connected to form an MESH network, each solar control unit is set as a slave, the parallel operation unit is set as a master and is replaced and set as the slave after acquiring the command of replacing the master.
6. A control method of a solar parallel operation system, which is applied to the solar parallel operation system of claim 5, the control method of the solar parallel operation system comprising the steps of:
the solar control unit and the parallel unit both acquire a host replacement instruction from the MESH network;
judging whether the solar control unit can be replaced by a host;
if yes, a replaceable solar control unit is set as a new master computer, and the parallel operation unit is set as a slave computer.
7. The control method of the solar parallel operation system according to claim 6, further comprising the steps of:
judging whether the parallel unit works normally or not;
if not, the parallel machine unit sends a data packet to the MESH network, and the data packet comprises a command of replacing the host.
CN202010531758.3A 2020-06-11 2020-06-11 Solar control unit and control method thereof, and solar parallel operation system and control method thereof Active CN111756063B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010531758.3A CN111756063B (en) 2020-06-11 2020-06-11 Solar control unit and control method thereof, and solar parallel operation system and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010531758.3A CN111756063B (en) 2020-06-11 2020-06-11 Solar control unit and control method thereof, and solar parallel operation system and control method thereof

Publications (2)

Publication Number Publication Date
CN111756063A CN111756063A (en) 2020-10-09
CN111756063B true CN111756063B (en) 2022-05-13

Family

ID=72675096

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010531758.3A Active CN111756063B (en) 2020-06-11 2020-06-11 Solar control unit and control method thereof, and solar parallel operation system and control method thereof

Country Status (1)

Country Link
CN (1) CN111756063B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015141406A1 (en) * 2014-03-17 2015-09-24 Kddi株式会社 Communications device, communications method, and program
WO2018031595A1 (en) * 2016-08-08 2018-02-15 Orison, Inc. Plug and play with smart energy storage units
CN107995256A (en) * 2017-10-26 2018-05-04 康美健康云服务有限公司 A kind of wireless data collection methods, electronic equipment, storage medium, system
CN109951833A (en) * 2019-03-26 2019-06-28 佛山市顺德区美的洗涤电器制造有限公司 Intelligent control equipment, household appliance and its networking control method and system
CN110401359A (en) * 2019-09-02 2019-11-01 大连弘达电气股份有限公司 It is a kind of based on redundancy switching fairing to device control method for parallel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015141406A1 (en) * 2014-03-17 2015-09-24 Kddi株式会社 Communications device, communications method, and program
WO2018031595A1 (en) * 2016-08-08 2018-02-15 Orison, Inc. Plug and play with smart energy storage units
CN107995256A (en) * 2017-10-26 2018-05-04 康美健康云服务有限公司 A kind of wireless data collection methods, electronic equipment, storage medium, system
CN109951833A (en) * 2019-03-26 2019-06-28 佛山市顺德区美的洗涤电器制造有限公司 Intelligent control equipment, household appliance and its networking control method and system
CN110401359A (en) * 2019-09-02 2019-11-01 大连弘达电气股份有限公司 It is a kind of based on redundancy switching fairing to device control method for parallel

Also Published As

Publication number Publication date
CN111756063A (en) 2020-10-09

Similar Documents

Publication Publication Date Title
CN101710738B (en) Automatic voltage control system of power plant substation
CN1955867B (en) Non-periodic control communications in wireless and other process control systems
JP2018088276A (en) Process monitoring system, process monitoring method, and data transmission method
US8943188B2 (en) Automation network comprising network components that produce status messages
CN101608599B (en) Method for controlling a wind generating unit
CN108566305B (en) Intelligent networking and optimizing system and method for computer network
WO2015115385A1 (en) Power control system and method, and information communication ability control system and method
CN110114766B (en) Method for constructing an existing electrical network for distributing electrical energy
EP3835898A1 (en) Artificial intelligence computing device, control method and apparatus, engineer station, and industrial automation system
US20220011753A1 (en) Generating and distributing configuration data structures for control systems
WO2021187673A1 (en) Apparatus for managing power supply and demand, and method therefor
EP2477309B1 (en) Self-organized power and energy control and management systems and methods
CN111756063B (en) Solar control unit and control method thereof, and solar parallel operation system and control method thereof
CN203275977U (en) Automation bus network electric control system
CN103558815A (en) Monitoring system of mobile energy storage power station
CN110703679A (en) Industrial controller of wind generating set
JP2012150795A (en) Integration of field devices in distributed system
CN103109269B (en) Low or MV distribution systems
US11921486B2 (en) Automation design environment with integrated industrial power system management capabilities
CN103731319A (en) Remote control fault intelligent diagnosing method of distribution network dispatching station
CN102576222B (en) For the method for operation site bus interface
CN105388873A (en) Universal wireless spot welding machine distributed control system
CN114866876A (en) Internet of things system for FFU
CN114253736A (en) Novel intelligent distributed computing and operating system for power grid
CN202696289U (en) Low voltage power distribution monitoring 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
CP01 Change in the name or title of a patent holder

Address after: 518000 Guangdong, Shenzhen, Baoan District, Baoan District City, the third floor of the community of 13A, Wutong Industrial Park, 4 layers and 5 stories.

Patentee after: Shenzhen Shuorixin Energy Technology Co.,Ltd.

Address before: 518000 Guangdong, Shenzhen, Baoan District, Baoan District City, the third floor of the community of 13A, Wutong Industrial Park, 4 layers and 5 stories.

Patentee before: SHENZHEN SHUORI NEW ENERGY TECHNOLOGY Co.,Ltd.

CP01 Change in the name or title of a patent holder