In the whole life cycle of photovoltaic power station, the operation and maintenance of photovoltaic power station directly determines the return rate of investors, and it is always the goal of operation and maintenance personnel to improve efficiency and reduce costs. If a lot of money and energy are invested in the early stage to improve the construction quality level of photovoltaic power stations, but no attention is paid to the operation and maintenance work after the completion of the power station, it will lead to a significant reduction in the income of the whole project. Therefore, to do a good job in the operation and maintenance work of the whole life cycle of photovoltaic power stations is the top priority of the photovoltaic industry.
Photovoltaic power generation operation and maintenance management includes:
Production operation and maintenance management (integrated operation and maintenance management), safety management, quality management, power marketing management, material management, information management. Production operation and maintenance management is the core of the production field, and other management means assist production operation and maintenance management.
This paper will introduce the operation and maintenance management of photovoltaic power station from the three stages of pre-operation, grid-connected trial operation and grid-connected post.
As a pv person who has been working for 10 years, I would like to tell you about the operation and maintenance of different power stations
I. Preparation before operation
1. Operation and maintenance personnel allocation and intervention time
Pv power station operation and maintenance personnel allocation according to the power station capacity is generally equipped with 1.2 to 1.5 operation and maintenance personnel, the minimum is not less than 4 people, implement the mechanism of two shifts. A power station is equipped with personnel according to the organizational structure of 1 chief, 1 deputy chief, 2-4 chief on duty, electrical specialist and general operation and maintenance personnel. All personnel shall obtain special operation certificate (high voltage electrician) and operation and maintenance certificate issued by dispatching.
Operations staff the best intervention time is midterm began to adjustment of the electric power plant construction, the operations staff can follow manufacturers, debugging, unit engineers participate in the electric power equipment debugging, knowledge of the configuration of the power plant electrical equipment, the configuration of electric equipment for power station have a clearer understanding of, at the same time for equipment materials, equipment installation quality. In particular, during the debugging of the monitoring background, operation and maintenance personnel should communicate with manufacturers about the production details of the monitoring background, so as to facilitate their own use in the future. For the communication lines in the power station, the debugging unit or the label should be timely requested, which is also to facilitate the later equipment maintenance. The intervention during the commissioning period will be able to take over the operation and maintenance work of the power station after it is put into operation.
2. Establish operation and maintenance system
Photovoltaic power stations must establish a sound operation management system, Including but not limited to, photovoltaic power station operation maintenance procedures, working ticket system, operation system, operation monitoring system, instruments management system, operation system, succession system, on duty patrol inspection system, equipment maintenance system, defect management system, operation analysis system, training system, spare parts and warehouse management system, etc.
3. Prepare materials for power station
Before the power station is put into operation, the necessary materials for operation should be purchased, which generally include safety tools, common tools, instruments and meters, labor protection and protective equipment, safety facilities, emergency and rescue materials, office supplies, operation and maintenance vehicles, product data and spare parts transferred from the construction period and other materials.
At the same time do a good job of material ledger management. For all materials out of storage, storage should have a detailed record, history can be checked.
4. Organize the operation data of the power station
Before the photovoltaic power station is connected to the grid, operation and maintenance personnel shall obtain and save relevant documents to be transferred from the construction party (including but not limited to, access system design review, electrical equipment product data, construction drawing, as-built drawing, completion report, equipment contract, construction contract and other documents).
As a pv person who has been working for 10 years, I would like to tell you about the operation and maintenance of different power stations
Two, grid connection trial operation
1. Set up a grid connection acceptance team
The grid-connection team shall be established to be responsible for the pre-grid-connection project acceptance, equipment operation training, scheduling training, data collection, preparation of grid-connection plan and grid-connection startup plan, etc. Special personnel shall be installed to communicate with the grid company on matters prior to grid-connection.
2. On-site grid connection
According to the scheduled time and contact with the dispatch, execute the operation ticket content issued by the dispatch, and report the dispatch operation situation one by one. After the booster station equipment is connected to the grid, check the operation of all equipment is normal before power transmission operation of photovoltaic area, the main work includes the impact of box transformer and inverter closing. During the trial operation of the power station after grid connection, special personnel shall be sent to check the operation of the equipment after grid connection, and pay attention to check the background electricity volume data and the operation status of the primary equipment. If there is an exception, report to the dispatching immediately and disconnect the abnormal device. To be checked and repaired before connecting to the network.
Iii. Related work after grid-connection
After the grid connection, the operation and maintenance stage of the power station is officially entered, and the power station is the battlefield of operation and maintenance personnel at this time. Operation and maintenance management is the core work of power station after grid connection.
As a pv person who has been working for 10 years, I would like to tell you about the operation and maintenance of different power stations
1. Production operation and maintenance management
Two-vote management: two-vote management runs through all links of power station operation. Strict implementation of two-vote management system can effectively eliminate misoperation and play a crucial role in safety risk control and maintenance quality control.
Inspection management: Make inspection plans and routes, perform inspection once a day, record them in run logs, and analyze and handle abnormal defects in time. The scope of inspection should be reasonably planned. For large power stations, the scope of inspection should be reasonably arranged based on the data and fault information of the monitoring system, and the inspection should be targeted.
Shift management: The shift team shall fully transfer the information of the power station, scheduling plan, use of spare parts, borrowing of tools, use of keys, abnormal situations and other information to ensure that the shift team can obtain the comprehensive information of the power station.
Electric quantity reporting and management: The power station watchman should regularly record the information of electric yield every day and summarize it into the electric yield report. The square array of abnormal power generation should be reported in time to analyze the abnormal cause. At the same time, monthly statistics of electricity generation and settlement electricity are compared.
Maintenance management: all maintenance work must comply with the maintenance system of the power station to ensure the order and safety of maintenance work. Maintenance management includes repair and preventive testing of existing faulty equipment.
Production insurance and claim management: In order to ensure the normal operation of the power station and reduce electricity loss or business interruption caused by various factors, it is recommended that the power station purchase production-related insurance, mainly including business interruption insurance, disaster insurance and equipment quality insurance.
Data Management: Including file system (file coding system, document classification system, document classification system, etc.), design completed file management, report management, debugging, file management, contract management, drawing management, daily production management, technical innovation, file management, overhaul management of equipment specification certificate, electronic document management, document management system, document destruction of flow Process management, etc.
2. Safety management
Safety is the lifeblood of industrial production, and any production-oriented enterprise puts safety in the first place. Photovoltaic power stations must establish and improve safety management organization system, supervision system, and assessment system. To formulate safety management system and safety production emergency plan. Equipped with complete safety tools and fire fighting tools. Conduct regular safety training and drills. Make, install and set up corresponding safety production signs.
3. Quality management
The quality management of pv power station can be divided into two stages: production preparation stage and operation stage. Production preparation stage includes the establishment of power station quality system system, project acceptance and transfer, production preparation activities and material management; The operation stage includes operation management, maintenance management, equipment and material procurement management, personnel training management and technical transformation management. The quality management directly determines the health of the power station. A well-run photovoltaic power station needs quality management in all aspects.
4. Power marketing management
Electric power marketing management involves generating capacity management and marketing management. Generation generation management includes generation plan preparation, actual generation and generation plan deviation analysis, generation assessment reward and punishment system and generation efficiency improvement; Marketing management only refers to participating in power grid electricity transaction, making power generation plan according to transaction rules, making reasonable maintenance plan, and making power generation strategy reasonably under the condition of limited power.
Electric power marketing management an ever-changing process, guided by the policy of market, with the power generating capacity to fit the market demand, the results directly affects the power generation enterprise's operating and turnover, to its own power station power generation in the electric power marketing is understanding, at the same time foreign to positive communication network Marketing Department to understand the new policy. According to the latest dynamic changes in the market management methods, to increase revenue and reduce expenditure.
5. Material management
Material management involves four aspects of material purchase and settlement, arrival acceptance, warehousing and storage. Procurement management is the management of suppliers, demand plans, procurement plans, procurement strategies, procurement orders, procurement payment and the core business processes related to the whole procurement process. The arrival acceptance shall determine whether the arrived equipment and materials are in conformity with the purchase order, with errors, omissions, damages and model discrepancies, etc., and shall not be signed for acceptance of unqualified equipment and materials. For the acceptance of qualified equipment and materials directly into the in-and-out stage, in-and-out stage of all kinds of materials in storage, receiving materials out of storage, back, allocation, inventory adjustment, inventory and other inventory business for efficient processing; Storage management includes facility inventory management, facility maintenance and maintenance, facility replacement management, facility regular test, facility inspection record management and other contents.
6. Information management
Photovoltaic power stations will have a lot of information in the stage of production and operation. Reliable management of these production information systems will directly affect the management of the power station operation and maintenance team and the group company. Information management includes the information management system construction, design documents, construction documents, contract documents, drawings, daily production data, technical renovation, missile d etection files, equipment specification, certificate of approval, electronic records management, document management, document destruction of process management, etc.) and information equipment management software and hardware maintenance upgrade.
Establish a set of perfect data management system, use information equipment system to manage the relevant documents and assets of the power station electronically, and implement KKS code management. The use of modern computer information system platform, the operation and maintenance process of each link information, digital, can greatly reduce the duplication of labor, no data to check, data loss and other problems. Comprehensively improve work efficiency.
As a pv person who has been working for 10 years, I would like to tell you about the operation and maintenance of different power stations
summary
Photovoltaic power station development to today in the construction stage of the technology has been very advanced and mature, but the operation stage is still groping forward. To do a good job in the operation and maintenance of photovoltaic power stations is not only the cultivation and use of technical personnel, but also the management of the whole operation and maintenance process.
Although the root of the operation and maintenance of photovoltaic power stations is the maintenance of equipment, to ensure the normal and efficient operation of equipment, the power generation will naturally improve. However, only by managing each link well can we improve the efficiency of operation and maintenance, reduce the cost of operation and maintenance, and truly achieve double results with half the effort.
