CN111934350A - Automatic start-stop recombination operation method for micro-grid power generation equipment - Google Patents

Automatic start-stop recombination operation method for micro-grid power generation equipment Download PDF

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Publication number
CN111934350A
CN111934350A CN202010852598.2A CN202010852598A CN111934350A CN 111934350 A CN111934350 A CN 111934350A CN 202010852598 A CN202010852598 A CN 202010852598A CN 111934350 A CN111934350 A CN 111934350A
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stop
power generation
recombination
generation equipment
stop recombination
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陈毅
周国虎
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Huaxiang Xiangneng Technology Co Ltd
Huaxiang Xiangneng Electric Co Ltd
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Huaxiang Xiangneng Technology Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/46Boxes; Parts thereof or accessories therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/52Mobile units, e.g. for work sites
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/54Anti-seismic devices or installations
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit 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
    • H02J13/00001Circuit 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 the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit 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
    • H02J13/00006Circuit 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70Smart grids as climate change mitigation technology in the energy generation sector
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S40/00Systems 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
    • Y04S40/12Systems 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

The invention relates to the technical field of power grid detection, in particular to an automatic start-stop recombination operation method of micro-grid power generation equipment, which can control the micro-grid power generation equipment through a start-stop recombination control device and automatically control the operation state of the micro-grid power generation equipment, has high operation efficiency, can adjust the operation state of the micro-grid power generation equipment according to a real-time condition by a control module, can obtain an optimal equipment start-stop recombination operation scheme under energy management optimization scheduling, realizes start-stop recombination scheduling of the whole system, and acquires system monitoring information in real time; performing state estimation according to the system monitoring information to determine the system scheduling amount; establishing an equipment start-stop recombination mathematical model taking the minimum system operation cost as a target function according to the system monitoring information and the system scheduling amount; and calculating the equipment start-stop recombination scheme by adopting a mixed integer linear optimization algorithm on the equipment start-stop recombination mathematical model according to the system constraint conditions.

Description

Automatic start-stop recombination operation method for micro-grid power generation equipment
Technical Field
The invention relates to the technical field of power grid detection, in particular to an automatic start-stop recombination operation method of micro-grid power generation equipment.
Background
Along with the rapid development of a novel smart power grid, attention is increasingly paid to the automatic start-stop recombination operation of a large number of new energy power generation equipment, synchronous generators and other electrical equipment in the power grid in a smart micro-power grid and a power distribution network. The method has important theoretical and practical values for realizing energy management and coordination control of the microgrid through recombination operation, fully utilizing the distributed power supply, improving the operation economy of the microgrid, improving the voltage and frequency indexes during the operation of an isolated island of the microgrid, ensuring the power supply reliability and the electric energy quality and the like. The recombination operation of the intelligent micro-grid puts higher technical requirements on the cooperative operation between a control system and equipment, and the integrated application of a unit start-stop recombination operation method in the intelligent micro-grid in the system needs to be solved urgently.
Disclosure of Invention
The invention aims to provide an automatic start-stop recombination operation method for micro-grid power generation equipment, which aims to solve the problems in the background technology.
In order to achieve the aim, the invention provides an automatic start-stop recombination operation method of micro-grid power generation equipment, which comprises the following steps:
s1: the monitoring module of the start-stop recombination control device monitors the operation information of the micro-grid power generation equipment in real time and sends the real-time operation information to the information acquisition module;
s2: the information acquisition module acquires real-time information, filters the real-time running information and transmits the real-time running information to the data processing unit;
s3: the data processing unit correspondingly processes the filtered information and transmits the running data information of the micro-grid power generation equipment to the microprocessor;
s4: data information is processed through the microprocessor, signals are transmitted to the control module, and information is fed back to the micro-grid power generation equipment through the control module to control the running state of the micro-grid power generation equipment.
Preferably, the microprocessor establishes an equipment start-stop recombination mathematical model taking the minimum system operation cost as a target function according to the system monitoring information and the system scheduling amount; and calculating the equipment start-stop recombination mathematical model by adopting a mixed integer linear optimization algorithm according to the system constraint condition to obtain an equipment start-stop recombination optimal scheme.
Preferably, the system constraint conditions comprise harmonic wave constraint in the power grid, start-stop adjustment frequency constraint, generating capacity balance constraint, energy exchange constraint with an external power grid, generating capacity constraint, climbing rate constraint, charging and discharging limitation of the energy storage system and power angle limitation.
Preferably, the harmonic constraint conditions in the power grid are as follows:
Figure BDA0002645227280000021
wherein G isΦ,iThe compensation power is rated for the node,
Figure BDA0002645227280000022
is the maximum value of the harmonic compensation capacity of the node, B is the set of nodes, HbFor harmonic content, H, in the microgridb' is the nominal value of the node.
Preferably, the microgrid power generation equipment is externally connected with a start-stop recombination control device, the microgrid power generation equipment is controlled by the start-stop recombination control device, a monitoring module, an information acquisition module, a data processing unit, a microprocessor and a control module are arranged in the start-stop recombination control device, the microprocessor comprises a calculation module and a display module, and the control module comprises a start module, a stop module and a recombination module.
Preferably, the stop/restart recombination control device comprises a start/stop recombination control box, a display screen is installed at the top of the start/stop recombination control box, a control groove and a box door are arranged on the outer side of the start/stop recombination control box, and a manual controller and an operation display lamp which are manually controlled are arranged in the control groove.
Preferably, a protective cover is mounted at the edge of one side of the control groove through a hinge, and a transparent area convenient for observing the running display lamp is arranged on the protective cover.
Preferably, a drawing box capable of drawing is installed at the top of one side of the start-stop recombination control box, sliding grooves are formed in two sides of the drawing box, and rolling wheels which correspond to the sliding grooves in position and are in sliding fit with the sliding grooves are formed in the inner wall of the start-stop recombination control box.
Preferably, a sealing plate is provided on an outer side of the drawer box.
Preferably, the bottom of the start-stop recombination control box is provided with a plurality of supporting legs which are uniform and equidistant, and the bottom of each supporting leg is provided with a damping and moisture-proof pad.
Compared with the prior art, the invention has the beneficial effects that:
1. in the automatic start-stop recombination operation method for the micro-grid power generation equipment, the micro-grid power generation equipment can be controlled through the start-stop recombination control device, the operation state of the micro-grid power generation equipment can be automatically controlled, the operation efficiency is high, the control module can adjust the operation state of the micro-grid power generation equipment according to the real-time condition, an optimal equipment start-stop recombination operation scheme can be obtained under energy management optimization scheduling, the start-stop recombination scheduling of the whole system is realized, the method is applied to an energy management center of a micro-grid, and system monitoring information is obtained in real time; performing state estimation according to the system monitoring information to determine the system scheduling amount; establishing an equipment start-stop recombination mathematical model taking the minimum system operation cost as a target function according to the system monitoring information and the system scheduling amount; and calculating the equipment start-stop recombination scheme by adopting a mixed integer linear optimization algorithm on the equipment start-stop recombination mathematical model according to the system constraint conditions.
2. In this automatic power generation facility of microgrid opens stops reorganization operation method, can assist the staff to detect microgrid power generation running state through the display screen, and open the situation of opening and close the reorganization to the microgrid and take notes the demonstration, improve staff's efficiency, reduce work load, the manual control and the operation display lamp that set up simultaneously can be controlled by the manual work, the transparent area of the operation display lamp of being convenient for observe that the protection was covered and is set up, be convenient for observe the running condition of inside operation display lamp, the pull box can be accomodate the data list or the memorandum list of staff's daily record, prevent to lose.
Drawings
FIG. 1 is a schematic diagram of the automatic start-stop recombination operation of a microgrid power generation device according to the present invention;
FIG. 2 is a schematic diagram of the control principle of the start-stop recombination control device according to the present invention;
FIG. 3 is a schematic structural diagram of a start-stop recombination control box according to the present invention;
FIG. 4 is a schematic structural diagram of a start-stop recombination control box after a pull box is opened according to the invention;
fig. 5 is a schematic side view of the start-stop recombination control box of the invention.
The various reference numbers in the figures mean:
10. a microgrid power generation facility; 20. a start-stop recombination control device; 21. a monitoring module; 22. an information acquisition module; 23. a data processing unit; 24. a microprocessor; 241. a calculation module; 242. a display module; 25. a control module; 251. a starting module; 252. a stop module; 253. a recombination module; 200. starting and stopping the recombination control box; 201. a display screen; 203. a control slot; 204. a box door; 205. a protective cover; 206. a manual controller; 207. operating a display lamp; 208. a transparent region; 209. supporting legs; 210. a shock-absorbing moisture-proof pad; 211. a box is drawn out; 212. a sealing plate; 213. a chute; 214. and a roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Example 1
An automatic start-stop recombination operation method for micro-grid power generation equipment is shown in fig. 1 and 2, and comprises the following steps:
s1: the monitoring module in the start-stop recombination control device monitors the operation information of the micro-grid power generation equipment in real time and sends the real-time operation information to the information acquisition module;
s2: the information acquisition module acquires real-time information, filters the real-time running information and transmits the real-time running information to the data processing unit;
s3: the data processing unit correspondingly processes the filtered information and transmits the running data information of the micro-grid power generation equipment to the microprocessor;
s4: data information is processed through the microprocessor, signals are transmitted to the control module, and information is fed back to the micro-grid power generation equipment through the control module to control the running state of the micro-grid power generation equipment.
Further, the microprocessor establishes an equipment start-stop recombination mathematical model taking the minimum system operation cost as an objective function according to the system monitoring information and the system scheduling amount; and calculating the equipment start-stop recombination mathematical model by adopting a mixed integer linear optimization algorithm according to the system constraint condition to obtain an equipment start-stop recombination optimal scheme.
Specifically, the system constraint conditions comprise harmonic wave constraint in a power grid, start-stop adjustment frequency constraint, generating capacity balance constraint, energy exchange constraint with an external power grid, generating capacity constraint, climbing rate constraint, charging and discharging limitation of an energy storage system and power angle limitation.
It is worth to say that the harmonic constraint conditions in the power grid are as follows:
Figure BDA0002645227280000051
wherein G isΦ,iThe compensation power is rated for the node,
Figure BDA0002645227280000052
is the maximum value of the harmonic compensation capacity of the node, B is the set of nodes, HbFor harmonic content, H, in the microgridb' is the nominal value of the node.
In the automatic start-stop recombination operation method of the micro-grid power generation equipment, the micro-grid power generation equipment can be controlled by the start-stop recombination control device, the operation of the micro-grid power generation equipment can be automatically controlled, the operation efficiency is high, the method is applied to an energy management center of a micro-grid, and system monitoring information is obtained in real time; performing state estimation according to the system monitoring information to determine the system scheduling amount; establishing an equipment start-stop recombination mathematical model taking the minimum system operation cost as a target function according to the system monitoring information and the system scheduling amount; and calculating the equipment start-stop recombination scheme by adopting a mixed integer linear optimization algorithm on the equipment start-stop recombination mathematical model according to the system constraint conditions.
Example 2
As a second embodiment of the present invention, as shown in fig. 3 to fig. 5, a microgrid power generation device 10 is externally connected to a start-stop recombination control device 20, the microgrid power generation device 10 is controlled by the start-stop recombination control device 20, a monitoring module 21, an information acquisition module 22, a data processing unit 23, a microprocessor 24 and a control module 25 are arranged in the start-stop recombination control device 20, the microprocessor 24 includes a calculation module 241 and a display module 242, and the control module 25 includes a start module 251, a stop module 252 and a recombination module 252.
Specifically, the stop/restart recombination control device 20 includes a start/stop recombination control box 200, a display screen 201 is installed on the top of the start/stop recombination control box 200, a control slot 203 and a box door 204 are arranged on the outer side of the start/stop recombination control box 200, and a manual controller 206 and an operation display lamp 207 which are manually controlled are arranged in the control slot 203.
Further, a protective cover 205 is mounted on one side edge of the control slot 203 through a hinge, and a transparent area 208 for facilitating observation of the operation display lamp 207 is disposed on the protective cover 205, so as to facilitate observation of the operation condition of the internal operation display lamp 207.
It should be noted that a drawing box 211 capable of drawing is installed at the top of one side of the start-stop recombination control box 200, sliding grooves 213 are formed on both sides of the drawing box 211, a roller 214 corresponding to the sliding grooves 213 and in sliding fit is formed on the inner wall of the start-stop recombination control box 200, and a sealing plate 212 is disposed on the outer side of the drawing box 211.
In addition, open the bottom of opening and stop recombination control box 200 and install a plurality of even equidistant supporting legs 209, the bottom of every supporting leg 209 is installed the shock attenuation dampproofing pad 210.
In the automatic start-stop recombination operation method of the microgrid power generation equipment, the display screen 52 can assist workers in detecting the power generation operation state of the microgrid and recording and displaying the start-stop recombination condition of the microgrid, so that the efficiency of the workers is improved, the workload is reduced, meanwhile, the manual controller 206 and the operation display lamp 207 which are arranged can be manually controlled, the transparent area 208 which is arranged on the protective cover 205 and facilitates observation of the operation display lamp 207 is convenient, the operation condition of the internal operation display lamp 207 is convenient to observe, and the pull box 211 can store data sheets or memorandum sheets which are daily recorded by the workers, so that loss is prevented.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A micro-grid power generation equipment automatic start-stop recombination operation method is characterized in that: the method comprises the following steps:
s1: the monitoring module in the start-stop recombination control device monitors the operation information of the micro-grid power generation equipment in real time and sends the real-time operation information to the information acquisition module;
s2: the information acquisition module acquires real-time information, filters the real-time running information and transmits the real-time running information to the data processing unit;
s3: the data processing unit correspondingly processes the filtered information and transmits the running data information of the micro-grid power generation equipment to the microprocessor;
s4: data information is processed through the microprocessor, signals are transmitted to the control module, and information is fed back to the micro-grid power generation equipment through the control module to control the running state of the micro-grid power generation equipment.
2. The microgrid power generation equipment automatic start-stop recombination operation method of claim 1, characterized in that: the microprocessor establishes an equipment start-stop recombination mathematical model taking the minimum system operation cost as a target function according to the system monitoring information and the system scheduling amount; and calculating the equipment start-stop recombination mathematical model by adopting a mixed integer linear optimization algorithm according to the system constraint condition to obtain an equipment start-stop recombination optimal scheme.
3. The microgrid power generation equipment automatic start-stop recombination operation method of claim 2, characterized in that: the system constraint conditions comprise harmonic wave constraint in a power grid, start-stop adjustment frequency constraint, generating capacity balance constraint, energy exchange constraint with an external power grid, generating capacity constraint, climbing rate constraint, charging and discharging limitation of an energy storage system and power angle limitation.
4. The microgrid power generation equipment automatic start-stop recombination operation method of claim 3, characterized in that: the harmonic constraint conditions in the power grid are as follows:
Figure FDA0002645227270000011
wherein G isΦ,iThe compensation power is rated for the node,
Figure FDA0002645227270000012
is the maximum value of the harmonic compensation capacity of the node, B is the set of nodes, HbFor harmonic content, H, in the microgridb' is the nominal value of the node.
5. The microgrid power generation equipment automatic start-stop recombination operation method of claim 1, characterized in that: the microgrid power generation equipment (10) is externally connected with a start-stop recombination control device (20), the microgrid power generation equipment (10) is controlled by the start-stop recombination control device (20), a monitoring module (21), an information acquisition module (22), a data processing unit (23), a microprocessor (24) and a control module (25) are arranged in the start-stop recombination control device (20), the microprocessor (24) comprises a calculation module (241) and a display module (242), and the control module (25) comprises a starting module (251), a stopping module (252) and a recombination module (252).
6. The microgrid power generation equipment automatic start-stop recombination operation method of claim 5, characterized in that: open and stop recombination controlling means (20) including opening and stop recombination control box (200), open and stop the top of recombination control box (200) and install display screen (201), the outside that opens and stop recombination control box (200) is provided with control groove (203) and chamber door (204), be provided with manual controller (206) and the operation display lamp (207) that manually controls in control groove (203).
7. The microgrid power generation equipment automatic start-stop recombination operation method of claim 6, characterized in that: a protective cover (205) is installed on the edge of one side of the control groove (203) through a hinge, and a transparent area (208) which is convenient for observing the operation display lamp (207) is arranged on the protective cover (205).
8. The microgrid power generation equipment automatic start-stop recombination operation method of claim 6, characterized in that: open and stop that one side top of reorganization control box (200) is installed and to be carried out pull box (211) of pull, spout (213) have been seted up to the both sides of pull box (211), open and stop and seted up on the inner wall of reorganization control box (200) with corresponding and sliding fit's of spout (213) position gyro wheel (214).
9. The microgrid power generation equipment automatic start-stop recombination operation method of claim 8, characterized in that: and a sealing plate (212) is arranged on the outer side of the drawing box (211).
10. The microgrid power generation equipment automatic start-stop recombination operation method of claim 6, characterized in that: open the bottom of opening and close recombination control box (200) and install a plurality of even equidistance supporting legss (209), the damping and dampproofing pad (210) are installed to the bottom of every supporting leg (209).
CN202010852598.2A 2020-08-21 2020-08-21 Automatic start-stop recombination operation method for micro-grid power generation equipment Pending CN111934350A (en)

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Application publication date: 20201113