CN113852350A - Photovoltaic power plant control operation and maintenance system - Google Patents
Photovoltaic power plant control operation and maintenance system Download PDFInfo
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- CN113852350A CN113852350A CN202111156217.8A CN202111156217A CN113852350A CN 113852350 A CN113852350 A CN 113852350A CN 202111156217 A CN202111156217 A CN 202111156217A CN 113852350 A CN113852350 A CN 113852350A
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- 238000012423 maintenance Methods 0.000 title claims abstract description 97
- 238000012544 monitoring process Methods 0.000 claims abstract description 109
- 238000012545 processing Methods 0.000 claims abstract description 54
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 claims abstract description 30
- 238000003860 storage Methods 0.000 claims abstract description 19
- 238000007726 management method Methods 0.000 claims description 37
- 238000004458 analytical method Methods 0.000 claims description 23
- 238000007619 statistical method Methods 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims description 10
- 238000003745 diagnosis Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 230000003139 buffering effect Effects 0.000 claims description 6
- 238000013499 data model Methods 0.000 claims description 6
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
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- 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
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- 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
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- 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
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a photovoltaic power station monitoring operation and maintenance system, which comprises a back-end data acquisition system, an operation and maintenance front-end system, a back-end data transmission, storage and processing system and a back-end operation and maintenance management system; from the perspective of actual on-site operation and maintenance and management, functions such as monitoring, control, production, management and the like are deeply integrated through a set of complete photovoltaic power station monitoring operation and maintenance system, all independent systems are comprehensively communicated, and the operation and maintenance requirements of operation and maintenance personnel of the photovoltaic power station are met.
Description
Technical Field
The invention belongs to the technical field of photovoltaic power station management and control, and particularly relates to a photovoltaic power station monitoring operation and maintenance system.
Background
At present, because of a lot of devices, each device is monitored by a monitoring system of the photovoltaic power station, for example, an inverter and a box transformer substation usually adopt a data acquisition card, data is sent into a ring network switch and then sent into a data storage server of the ring network switch, and the monitoring system of the inverter and the box transformer substation monitors the data. Therefore, the monitoring system of the photovoltaic power station adopts a technical mode of carrying out unified monitoring after respective data acquisition of an inverter, a box transformer system, an AVC/AGC, an environment monitor, a current collection circuit, an electric energy meter and the like.
However, for operation and maintenance personnel, production equipment monitoring is only a part of photovoltaic power plant production. In addition, the production report form filling, the production data statistics and the production operation and maintenance work ticket operation billing are all the work required by the on-site operation and maintenance personnel. At present, a photovoltaic power station is basically in a state of being watched by a small number of people, 1-2 operators on duty are all responsible for the scattered work, and great inconvenience is brought to the work of field operation and maintenance personnel.
Disclosure of Invention
The invention aims to provide a photovoltaic power station monitoring operation and maintenance system, which aims to solve the problems that in the prior art, the number of field operation and maintenance personnel of a photovoltaic power station is small, and various dispersed operations of photovoltaic power station production cannot be dealt with.
In order to achieve the purpose, the invention adopts the following technical scheme:
a photovoltaic power station monitoring operation and maintenance system comprises a back-end data acquisition system, an operation and maintenance front-end system, a back-end data transmission, storage and processing system and a back-end operation and maintenance management system;
the back-end data acquisition system is used for acquiring real-time operation data of photovoltaic power station equipment and the system;
the operation and maintenance front-end system is used for operation and maintenance management, statistical analysis and report production; monitoring equipment and systems in the photovoltaic power station and managing equipment alarm according to the operation data acquired by the back-end data acquisition system;
the back-end data transmission storage processing system is used for data processing, data transmission storage and data calculation;
the data processing comprises remote control and remote regulation data processing, and remote control locking, photovoltaic power station equipment control and regulation operation are carried out; carrying out engineering value conversion processing on the telemetering data; the remote sensing quantity data are processed, remote measurement and remote sensing quantity parameters are modified into required values and states, the implementation state of the remote sensing quantity data can be negated, and the time sequence of the remote sensing quantity data is recorded;
the data transmission storage is used for buffering the data which fails to be transmitted at the transmission node when the uplink transmission link is interrupted; after the uplink recovers communication, the buffer data is transmitted in a compression mode; encrypting the data stream during transmission of the data;
the data calculation is used for calling an operation and maintenance front-end system, carrying out statistical analysis and report production, realizing automatic filling of a generating capacity daily report, a monthly report and an annual report, and establishing a fault analysis data model;
and the back-end operation and maintenance management system is used for editing the working tickets and the operation ticket templates of the photovoltaic power station and storing and pushing the fault processing knowledge base.
Optionally, the operation and maintenance front-end system specifically includes: the system comprises an operation monitoring system, an operation alarm system, an operation and maintenance management system, a production statistical system and a fault analysis system;
the operation monitoring system is used for monitoring and operating the system equipment;
the operation alarm system is used for automatic monitoring and alarming of system equipment, and simultaneously triggers the operation and maintenance management system and the production statistical analysis system according to the current alarm information;
the operation and maintenance management system is used for photovoltaic power station work ticket and operation ticket management, and storing and pushing a fault processing knowledge base;
the production statistical system is used for automatically filling production reports of the photovoltaic power station;
the fault analysis system is used for calling the operation data monitored by the operation monitoring system to diagnose the equipment and system faults.
Optionally, the monitoring content of the operation alarm system includes: photovoltaic subarray monitoring, box transformer substation monitoring, inverter monitoring, photovoltaic panel support control, combiner box monitoring, current collection line monitoring and AGC/AVC monitoring.
Optionally, the management of the work tickets and the operation tickets of the photovoltaic power station comprises: and after relevant fault information of the system is found, directly triggering corresponding system and equipment work tickets and operation tickets, and after the corresponding alarm fault is processed and the equipment alarm information disappears, storing all processing information in a file.
Optionally, the storing and pushing of the failure handling knowledge base includes: classifying and counting the faults according to the equipment and the fault types, and forming a fault processing knowledge base; and when similar faults occur again, pushing related work tickets and operation ticket contents to the workers.
Optionally, the fault analysis system specifically performs equipment and system fault diagnosis, including: and calling all operation data monitored by the operation monitoring system, establishing a related diagnosis and analysis model according to a plurality of fault analysis data models set by the fault analysis system or freely fitting data combinations according to a data operation tool provided by the system, performing data statistical analysis, and performing equipment and system fault diagnosis.
Optionally, after the back-end data acquisition system acquires real-time operation data of the photovoltaic power station equipment and system, the acquired data is sent to the real-time database, so that the operation and maintenance front-end system monitors the equipment and system in the photovoltaic power station and performs equipment alarm management.
Optionally, the data collected by the back-end data collection system includes telemetry, and telemetry data.
Optionally, the back-end data transmission, storage and processing system is further configured to check data reasonableness, remove overflow and invalid data that exceed a reasonableness range, and generate corresponding alarm information at the same time; the data zero-shift processing is also used for defining the zero setting range of each measured value, and resetting the measurement to zero when the measured value is less than a dead zone; and the automatic bypass generation processing is also used for setting automatic bypass generation processing, and when the bypass generation line, the values of the active power, the idle power and the current of the bypass are automatically substituted for the value of the replaced line, and the value is logged in a generation table.
Optionally, the back-end operation and maintenance management system is further configured to cancel and modify the issued work ticket and operation ticket; storing and pushing the fault processing knowledge base comprises the steps of counting work tickets and operation tickets with the same alarm type to form the fault knowledge base; when the same alarm automatically triggers the work ticket and the operation ticket next time, the related historical work ticket and operation ticket are pushed by the work staff.
The invention has the following beneficial effects:
1. the photovoltaic power station monitoring operation and maintenance system provided by the embodiment of the invention comprises a back-end data acquisition system, an operation and maintenance front-end system, a back-end data transmission, storage and processing system and a back-end operation and maintenance management system; from the perspective of actual on-site operation and maintenance and management, functions such as monitoring, control, production, management and the like are deeply integrated through a set of complete photovoltaic power station monitoring operation and maintenance system, all independent systems are comprehensively communicated, and the operation and maintenance requirements of operation and maintenance personnel of the photovoltaic power station are met.
2. The photovoltaic power station monitoring operation and maintenance system provided by the embodiment of the invention can perform classified statistics on similar work tickets and operation tickets, and perform statistics on the work tickets and the operation tickets with similar alarm types to form a fault knowledge base. When the work ticket and the operation ticket are automatically triggered like alarming next time, the related historical work ticket and operation ticket are simultaneously pushed for reference of operators, and the fault processing efficiency is improved.
3. The photovoltaic power station monitoring operation and maintenance system provided by the embodiment of the invention has a data buffering mode, and when an uplink transmission link is interrupted, the system can immediately enter the data buffering mode to buffer data which fails to be transmitted at a transmission node. After the uplink resumes communication, the system starts the breakpoint resume function, and transmits the buffered data in a compressed manner without affecting the real-time data transmission, thereby improving the transmission efficiency.
4. The photovoltaic power station monitoring operation and maintenance system provided by the embodiment of the invention can display the alarm information of the system equipment in a text, graph and sound-light alarm mode and carry out alarm recording.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a photovoltaic power plant monitoring operation and maintenance system according to an embodiment of the invention.
Fig. 2 is a schematic view of monitoring contents of an alarm system in the embodiment of the present invention.
Fig. 3 is a schematic diagram of management of work tickets and operation tickets in the embodiment of the invention.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
The embodiment of the invention provides a photovoltaic power station monitoring operation and maintenance system, which deeply integrates functions of monitoring, controlling, producing, managing and the like through a set of complete photovoltaic power station monitoring operation and maintenance system from the perspective of actual on-site operation and maintenance and management, comprehensively gets through each independent system, and meets the operation and maintenance requirements of photovoltaic power station operation and maintenance personnel.
As shown in fig. 1, a photovoltaic power plant monitoring operation and maintenance system includes: the operation and maintenance system comprises an operation and maintenance front-end system, a back-end data acquisition system, a back-end data transmission, storage and processing system and a back-end operation and maintenance management system.
In this embodiment, the operation and maintenance front-end system mainly achieves functions of monitoring and operating system equipment operation, system equipment alarm management, operation and maintenance management, statistical analysis, report production and the like of operators in the photovoltaic power station. The method comprises the following steps: the system comprises an operation monitoring system, an operation alarm system, an operation and maintenance management system, a production statistical system and a fault analysis system.
Specifically, the operation monitoring system mainly implements functions of monitoring and operating system device operations, and as an example, the content monitored by the operation monitoring system includes but is not limited to: A. power station information overview; B. monitoring a photovoltaic sub-array; C. monitoring a box transformer substation; D. monitoring an inverter; E. photovoltaic panel support control; F. monitoring a combiner box; G. an environment detector; H. monitoring a current collection circuit; I. AGC/AVC monitoring; J. optical power predictive monitoring; K. and monitoring the electric energy meter. A, B, C, D, E, F, it is controllable because it is located in the safe production area; G. h, I, J, K, because it is located in the second production area, it is required by the power network safety, and it is one-way communication, only can be monitored and not controlled.
Specifically, the operation and maintenance front-end system displays the alarm information of the system equipment in a text, graph and sound-light alarm mode and carries out alarm recording. The operation alarm system realizes automatic monitoring and alarm of system equipment, and as an example, the operation alarm system monitoring content includes but is not limited to: A. power station information overview; B. monitoring a photovoltaic sub-array; C. monitoring a box transformer substation; D. monitoring an inverter; E. photovoltaic panel support control; F. monitoring a combiner box; H. monitoring a current collection circuit; I. AGC/AVC monitoring.
In a preferred embodiment of the present invention, the operation alarm system may further automatically trigger the operation and maintenance management system and the production statistical analysis system according to the current alarm information.
Specifically, the operation and maintenance management system mainly achieves the management functions of the work tickets and the operation tickets (two tickets) of the photovoltaic power station and the storage and pushing functions of the fault processing knowledge base.
As an example, the management function of the work ticket and the operation ticket (two tickets) can be that the corresponding system and equipment work ticket and operation ticket are automatically and directly triggered by the system related fault information found by the operation alarm system, and can also be added manually by the operation personnel. And when the operator finishes processing the corresponding alarm fault and the equipment alarm information disappears, the operation and maintenance management system automatically saves all the processing information into files. The storage and pushing function of the fault processing knowledge base is to classify and count the faults according to the equipment and the fault types and form the fault processing knowledge base. When similar faults occur again, the operation and maintenance management system pushes the contents of related work tickets and operation tickets (two tickets) for reference of operators.
Particularly, the production statistical system is used for achieving the automatic filling function of the production report of the photovoltaic power station.
As an example, the automatic production report filling can automatically fill the daily, monthly and annual reports of the power generation amount of the photovoltaic power station. The production statistical system can automatically read the related data of the photovoltaic power station inverter power generation amount, the on-line electric energy meter and the like monitored by the operation monitoring system, and perform related calculation according to the logical relationship.
Specifically, the fault analysis system can call all the operation data monitored by the operation monitoring system to perform data statistical analysis, so as to perform equipment and system fault diagnosis.
As an example, the operator may set up a plurality of fault analysis data models according to the fault analysis system (e.g., analysis models that may be set up according to analysis methods provided in document "photovoltaic power station blocking real-time diagnosis algorithm based on markov chain", jungle, zhaodong, charyandon, chencheng road ", energy science and engineering college of electronic science and technology university", or patent 201910300340.9 "photovoltaic array fault diagnosis method and apparatus based on space-time distribution characteristics", etc.), or may freely fit data combinations according to data computation tools provided by the system to set up relevant diagnosis and analysis models by himself.
In this embodiment, the back-end data collection and storage system mainly has the function of collecting real-time operation data of the photovoltaic power station equipment and the system. The method comprises the following steps of collecting real-time operation data of photovoltaic power station equipment and a system through data collection software, and sending the collected data into a real-time database (redis, PI and the like) for operation and maintenance of a front-end system: the operation monitoring system and the operation alarm system monitor photovoltaic power station equipment and systems in real time.
Specifically, the data types collected by the back-end data collection and storage system include data types such as remote measurement, remote signaling and remote pulse.
As an example, the data to be collected in the photovoltaic power plant includes, but is not limited to, the following monitoring and surveillance data:
A. power station information overview; B. monitoring a photovoltaic sub-array; C. monitoring a box transformer substation; D. monitoring an inverter; E. photovoltaic panel support control; F. monitoring a combiner box; G. an environment detector; H. monitoring a current collection circuit; I. AGC/AVC monitoring; J. optical power predictive monitoring; K. and monitoring the electric energy meter.
As an example: inverter monitoring, including but not limited to the following data, needs to be collected:
(1) inverter telemetry data: daily generated energy, accumulated generated energy, cabinet temperature, conversion efficiency, PV voltage, PV current, PV input power, phase voltage, phase current, power factor, output active power, output reactive power and the like of the inverter
(2) Inverter telemetry data: starting, stopping and resetting signals of inverter, important fault signals of inverter and the like
In this embodiment, the back-end data transmission, storage and processing system functions include data processing, transmission, storage, and data calculation functions, such as remote control and remote signaling.
Specifically, the data processing mainly includes: remote control, remote regulation data processing, remote measurement data processing and remote communication data processing.
As an example, remote control, remote metering data processing:
the photovoltaic power station monitoring operation and maintenance system provided by the invention has a remote control locking function. The lockout conditions include: the lower limit of the direct current voltage is exceeded, and the power protection switch, the switch or the circuit are in a maintenance state;
the photovoltaic power station monitoring operation and maintenance system provided by the invention has the following objects of control and regulation: opening/closing of a breaker and a disconnecting link; putting in/cutting off the unit; adjusting a transformer tap; switching and adjusting reactive compensation equipment; set point control (analog and pulse quantities); the functions of protecting the downloading of the fixed value and the like; aiming at the characteristic that the number of inverters and box transformer substation equipment in a photovoltaic power station is large, the batch remote control function can be realized through a batch processing technical means.
As an example, telemetry data processing:
the photovoltaic power station monitoring operation and maintenance system provided by the invention can perform engineering value conversion processing through linear algorithm conversion, nonlinear algorithm conversion and the like. Such as: linear algorithm conversion: the minimum value and the maximum value of the analog-to-digital converted data correspond to the minimum value and the maximum value of the engineering quantity of the analog quantity, and are converted into the engineering quantity by y ═ kx + b. And (3) nonlinear algorithm conversion: the non-linear transformation is performed by interpolation once through points on a set of curves given in sequence. Meanwhile, a data rationality checking function is set, overflow and failure data which exceed a rationality range are eliminated, a database is not input, and corresponding alarm information is generated. A data null shift processing function is provided, and a null setting range (zero dead zone) is defined for each measurement value. For a measurement value less than a certain dead zone, the measurement may be reset to zero. And an automatic bypass generation processing function is set, when the bypass generates a line, the values of the active power, the idle power and the current of the bypass are automatically substituted for the values of the generated line, and a generation table is logged in.
As an example, remote traffic data processing:
the photovoltaic power station monitoring operation and maintenance system provided by the invention can realize manual data setting function on remote traffic data. The remote measurement and remote semaphore parameters in the real-time database of the transformer substation are modified into required values and states, so that the display information of a background monitor and a main station of a transformer substation monitoring system is changed, various data and operation states in the actual station cannot be changed, and certain special monitoring or control is realized.
The photovoltaic power station monitoring operation and maintenance system provided by the invention can realize a state negation function on remote traffic data. The state of different equipment 0 and 1 can be negated as required, and the parameters of the opening and closing, normal/abnormal state of the total station equipment are unified.
The photovoltaic power station monitoring operation and maintenance system provided by the invention can have a function of recording the time sequence of the remote traffic data, can smoothly record the time of the remote traffic data according to the time, and realizes the sequential recording of SOE events.
Specifically, the functions of transmitting and storing data include the following:
as an example, in the photovoltaic power station monitoring operation and maintenance system provided by the invention, the communication data should be transmitted by using a standard power protocol. And the data service provided outside is sent to the outside through the network forward to the isolation device.
As an example, the photovoltaic power station monitoring operation and maintenance system provided by the invention is provided with a data buffering mode; when the uplink transmission link is interrupted, the system can immediately enter a data buffering mode to buffer the data which is failed in transmission at the transmission node. After the communication of the uplink is recovered, the system starts a breakpoint continuous transmission function, and transmits the buffered data in a compression mode under the condition of not influencing real-time data transmission.
As an example, the photovoltaic power station monitoring operation and maintenance system provided by the invention is provided with an encryption function of a data stream; encryption algorithms such as SSL, DES, Base64 and the like can be selected for encryption transmission of the pushed data stream in real time, and meanwhile, a decryption algorithm of an opposite end is provided, so that the data security of the equipment is guaranteed.
As an example, the photovoltaic power station monitoring operation and maintenance system provided by the invention is provided with corresponding database software (redis and the like) and hardware (wave NF5270M5 and the like) for data storage. The storage space at least meets the size of the storage space for storing the photovoltaic power station monitoring operation and maintenance system in 3 years.
Specifically, the data calculation functions include the following:
as an example, the photovoltaic power station monitoring operation and maintenance system provided by the invention can perform addition, subtraction, multiplication, division, square, evolution, absolute value taking, sign negation, algebraic sum, integral, average, maximum, minimum and other algebraic operation types, logic operation and mixed operation, and the calculation period of the calculation point can be freely set.
The data calculation function is called by a production statistical system and a fault analysis system of the operation and maintenance front-end system. The automatic filling of the generating capacity daily report, the monthly report and the annual report and the establishment of a fault analysis data model are realized.
In this embodiment, the back-end operation and maintenance management system mainly realizes the editing of the work ticket and the operation ticket (two tickets) templates of the photovoltaic power station, and the storing and pushing functions of the fault processing knowledge base.
Specifically, the system engineer and the operation and maintenance personnel can edit the working ticket and the operation ticket (two tickets) template of the photovoltaic power station in the back-end operation and maintenance management system. And the issued two tickets are cancelled and modified. And simultaneously carrying out classification statistics on similar or same work tickets and operation tickets, and carrying out statistics on the work tickets and the operation tickets with similar or same alarm types to form a fault knowledge base. When the similar or same alarm automatically triggers the work ticket and the operation ticket next time, the related historical work ticket and operation ticket are pushed simultaneously for reference of operators, and the fault processing efficiency is improved.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (10)
1. A photovoltaic power station monitoring operation and maintenance system is characterized by comprising a back-end data acquisition system, an operation and maintenance front-end system, a back-end data transmission, storage and processing system and a back-end operation and maintenance management system;
the back-end data acquisition system is used for acquiring real-time operation data of photovoltaic power station equipment and the system;
the operation and maintenance front-end system is used for operation and maintenance management, statistical analysis and report production; monitoring equipment and systems in the photovoltaic power station and managing equipment alarm according to the operation data acquired by the back-end data acquisition system;
the back-end data transmission storage processing system is used for data processing, data transmission storage and data calculation;
the data processing comprises remote control and remote regulation data processing, and remote control locking, photovoltaic power station equipment control and regulation operation are carried out; carrying out engineering value conversion processing on the telemetering data; the remote sensing quantity data are processed, remote measurement and remote sensing quantity parameters are modified into required values and states, the implementation state of the remote sensing quantity data can be negated, and the time sequence of the remote sensing quantity data is recorded;
the data transmission storage is used for buffering the data which fails to be transmitted at the transmission node when the uplink transmission link is interrupted; after the uplink recovers communication, the buffer data is transmitted in a compression mode; encrypting the data stream during transmission of the data;
the data calculation is used for calling an operation and maintenance front-end system, carrying out statistical analysis and report production, realizing automatic filling of a generating capacity daily report, a monthly report and an annual report, and establishing a fault analysis data model;
and the back-end operation and maintenance management system is used for editing the working tickets and the operation ticket templates of the photovoltaic power station and storing and pushing the fault processing knowledge base.
2. The photovoltaic power plant monitoring operation and maintenance system according to claim 1, wherein the operation and maintenance front-end system specifically comprises: the system comprises an operation monitoring system, an operation alarm system, an operation and maintenance management system, a production statistical system and a fault analysis system;
the operation monitoring system is used for monitoring and operating the system equipment;
the operation alarm system is used for automatic monitoring and alarming of system equipment, and simultaneously triggers the operation and maintenance management system and the production statistical analysis system according to the current alarm information;
the operation and maintenance management system is used for photovoltaic power station work ticket and operation ticket management, and storing and pushing a fault processing knowledge base;
the production statistical system is used for automatically filling production reports of the photovoltaic power station;
the fault analysis system is used for calling the operation data monitored by the operation monitoring system to diagnose the equipment and system faults.
3. The photovoltaic power plant monitoring operation and maintenance system of claim 2, wherein the operation alarm system monitoring content comprises: photovoltaic subarray monitoring, box transformer substation monitoring, inverter monitoring, photovoltaic panel support control, combiner box monitoring, current collection line monitoring and AGC/AVC monitoring.
4. The photovoltaic power plant monitoring operation and maintenance system according to claim 2, wherein the photovoltaic power plant work ticket and operation ticket management comprises: and after relevant fault information of the system is found, directly triggering corresponding system and equipment work tickets and operation tickets, and after the corresponding alarm fault is processed and the equipment alarm information disappears, storing all processing information in a file.
5. The photovoltaic power plant monitoring operation and maintenance system according to claim 4, wherein the storing and pushing of the fault handling knowledge base comprises: classifying and counting the faults according to the equipment and the fault types, and forming a fault processing knowledge base; and when similar faults occur again, pushing related work tickets and operation ticket contents to the workers.
6. The photovoltaic power plant monitoring operation and maintenance system of claim 1, wherein the fault analysis system for performing equipment and system fault diagnosis specifically comprises: and calling all operation data monitored by the operation monitoring system, establishing a related diagnosis and analysis model according to a plurality of fault analysis data models set by the fault analysis system or freely fitting data combinations according to a data operation tool provided by the system, performing data statistical analysis, and performing equipment and system fault diagnosis.
7. The photovoltaic power plant monitoring operation and maintenance system of claim 1, wherein the back-end data collection system collects real-time operating data of photovoltaic power plant equipment and systems, and sends the collected data to a real-time database for the operation and maintenance front-end system to monitor and alarm equipment and systems in the photovoltaic power plant.
8. The photovoltaic power plant monitoring operation and maintenance system of claim 7, wherein the data collected by the back-end data collection system includes telemetry, telemetry and telemetry data.
9. The photovoltaic power station monitoring operation and maintenance system according to claim 1, wherein the back-end data transmission, storage and processing system is further configured to check data reasonableness, reject overflow and failure data that exceed a reasonableness range, and generate corresponding alarm information; the data zero-shift processing is also used for defining the zero setting range of each measured value, and resetting the measurement to zero when the measured value is less than a dead zone; and the automatic bypass generation processing is also used for setting automatic bypass generation processing, and when the bypass generation line, the values of the active power, the idle power and the current of the bypass are automatically substituted for the value of the replaced line, and the value is logged in a generation table.
10. The photovoltaic power plant monitoring operation and maintenance system according to claim 1, wherein the back-end operation and maintenance management system is further configured to cancel and modify issued work tickets and operation tickets; storing and pushing the fault processing knowledge base comprises the steps of counting work tickets and operation tickets with the same alarm type to form the fault knowledge base; when the same alarm automatically triggers the work ticket and the operation ticket next time, the related historical work ticket and operation ticket are pushed by the work staff.
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| CN202111156217.8A CN113852350B (en) | 2021-09-29 | 2021-09-29 | Photovoltaic power plant control fortune is held system |
| PCT/CN2022/070952 WO2023050643A1 (en) | 2021-09-29 | 2022-01-10 | Monitoring, operation and maintenance system for photovoltaic power station |
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| CN202111156217.8A CN113852350B (en) | 2021-09-29 | 2021-09-29 | Photovoltaic power plant control fortune is held system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023050643A1 (en) * | 2021-09-29 | 2023-04-06 | 中国华能集团清洁能源技术研究院有限公司 | Monitoring, operation and maintenance system for photovoltaic power station |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116865447B (en) * | 2023-07-20 | 2024-01-26 | 南京欧陆电气股份有限公司 | Distributed wind power and photovoltaic complementary power generation control management method and system |
| CN116934302A (en) * | 2023-07-21 | 2023-10-24 | 创维互联（北京）新能源科技有限公司 | Management method and system for shared operation and maintenance of distributed photovoltaic power station |
| CN116910224B (en) * | 2023-09-13 | 2023-11-21 | 四川金信石信息技术有限公司 | Method and system for extracting switching operation information based on large language model |
| CN117639240A (en) * | 2023-11-28 | 2024-03-01 | 重庆东电通信技术有限公司 | Intelligent perception and big data analysis-based power transmission line early warning method |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617661A (en) * | 2015-02-27 | 2015-05-13 | 中盛新能源（南京）有限公司 | Photovoltaic power station operation and maintenance system |
| CN105187010A (en) * | 2015-09-07 | 2015-12-23 | 无锡联盛合众新能源有限公司 | Intelligent monitoring and operation maintenance system for photovoltaic power station |
| CN105337308A (en) * | 2015-10-23 | 2016-02-17 | 南京南瑞集团公司 | Grid-side regional distributed photovoltaic operation and maintenance management system and management method |
| WO2016045508A1 (en) * | 2014-09-23 | 2016-03-31 | 国电南瑞科技股份有限公司 | Intelligent management and control device and method for new energy power station concentration area |
| CN106709580A (en) * | 2017-01-13 | 2017-05-24 | 国家电网公司 | Substation secondary system operation and maintenance cloud platform |
| CN206472103U (en) * | 2017-01-20 | 2017-09-05 | 许昌继电器研究所有限公司 | A kind of photovoltaic plant intelligent management system |
| CN107222167A (en) * | 2017-06-14 | 2017-09-29 | 合肥赛度电子科技有限公司 | A kind of photovoltaic plant intelligent monitoring platform |
| CN209375578U (en) * | 2018-11-29 | 2019-09-10 | 北京碳鼎科技有限公司 | A kind of photovoltaic plant intelligence O&M inspection base |
| CN110336373A (en) * | 2019-04-30 | 2019-10-15 | 苏州易助能源管理有限公司 | Photovoltaic power station Information Management System and method |
| KR102043340B1 (en) * | 2019-06-17 | 2019-11-12 | 한양전공주식회사 | Monitoring system for grid-connected photovoltaic system |
| CN111010084A (en) * | 2019-12-12 | 2020-04-14 | 山东中实易通集团有限公司 | Photovoltaic power station intelligent monitoring analysis platform and method |
| KR20200077314A (en) * | 2018-12-20 | 2020-06-30 | 주식회사 휴인텍 | Monitoring system for solar power plant |
| CN111404482A (en) * | 2020-03-23 | 2020-07-10 | 阳光电源股份有限公司 | Photovoltaic power station monitoring method and system |
| US10826428B1 (en) * | 2019-12-06 | 2020-11-03 | King Abdulaziz University | Monitoring and fault detection method and system for photovoltaic plants |
| CN213754105U (en) * | 2020-12-04 | 2021-07-20 | 上海宝钢节能环保技术有限公司 | Photovoltaic power plant intelligent management system based on big data |
| KR20210115432A (en) * | 2020-03-13 | 2021-09-27 | 태웅이엔에스 주식회사 | Operation and management system of photovoltaic power plant and method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113852350B (en) * | 2021-09-29 | 2023-11-03 | 中国华能集团清洁能源技术研究院有限公司 | Photovoltaic power plant control fortune is held system |
-
2021
- 2021-09-29 CN CN202111156217.8A patent/CN113852350B/en active Active
-
2022
- 2022-01-10 WO PCT/CN2022/070952 patent/WO2023050643A1/en unknown
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016045508A1 (en) * | 2014-09-23 | 2016-03-31 | 国电南瑞科技股份有限公司 | Intelligent management and control device and method for new energy power station concentration area |
| CN104617661A (en) * | 2015-02-27 | 2015-05-13 | 中盛新能源（南京）有限公司 | Photovoltaic power station operation and maintenance system |
| CN105187010A (en) * | 2015-09-07 | 2015-12-23 | 无锡联盛合众新能源有限公司 | Intelligent monitoring and operation maintenance system for photovoltaic power station |
| CN105337308A (en) * | 2015-10-23 | 2016-02-17 | 南京南瑞集团公司 | Grid-side regional distributed photovoltaic operation and maintenance management system and management method |
| CN106709580A (en) * | 2017-01-13 | 2017-05-24 | 国家电网公司 | Substation secondary system operation and maintenance cloud platform |
| CN206472103U (en) * | 2017-01-20 | 2017-09-05 | 许昌继电器研究所有限公司 | A kind of photovoltaic plant intelligent management system |
| CN107222167A (en) * | 2017-06-14 | 2017-09-29 | 合肥赛度电子科技有限公司 | A kind of photovoltaic plant intelligent monitoring platform |
| CN209375578U (en) * | 2018-11-29 | 2019-09-10 | 北京碳鼎科技有限公司 | A kind of photovoltaic plant intelligence O&M inspection base |
| KR20200077314A (en) * | 2018-12-20 | 2020-06-30 | 주식회사 휴인텍 | Monitoring system for solar power plant |
| CN110336373A (en) * | 2019-04-30 | 2019-10-15 | 苏州易助能源管理有限公司 | Photovoltaic power station Information Management System and method |
| KR102043340B1 (en) * | 2019-06-17 | 2019-11-12 | 한양전공주식회사 | Monitoring system for grid-connected photovoltaic system |
| US10826428B1 (en) * | 2019-12-06 | 2020-11-03 | King Abdulaziz University | Monitoring and fault detection method and system for photovoltaic plants |
| CN111010084A (en) * | 2019-12-12 | 2020-04-14 | 山东中实易通集团有限公司 | Photovoltaic power station intelligent monitoring analysis platform and method |
| KR20210115432A (en) * | 2020-03-13 | 2021-09-27 | 태웅이엔에스 주식회사 | Operation and management system of photovoltaic power plant and method thereof |
| CN111404482A (en) * | 2020-03-23 | 2020-07-10 | 阳光电源股份有限公司 | Photovoltaic power station monitoring method and system |
| CN213754105U (en) * | 2020-12-04 | 2021-07-20 | 上海宝钢节能环保技术有限公司 | Photovoltaic power plant intelligent management system based on big data |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023050643A1 (en) * | 2021-09-29 | 2023-04-06 | 中国华能集团清洁能源技术研究院有限公司 | Monitoring, operation and maintenance system for photovoltaic power station |
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|---|---|
| CN113852350B (en) | 2023-11-03 |
| WO2023050643A1 (en) | 2023-04-06 |
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