In recent years, the greenhouse effect is increasingly serious, renewable energy as clean energy began to gradually by the state attention, boarded the stage of history. Wind power because of its clean, high efficiency has become China's renewable energy development in the top priority. Although in recent years, China's fan installed capacity into explosive growth, but the relevant education and training there is a certain lack. So most of the wind farm management and operation and maintenance personnel there is a certain degree of experience and technical deficiencies. And fan maintenance is to become a significant refraction point. Based on the analysis of the practical problems faced by the maintenance work, this paper puts forward the idea of setting up the remote video system on the fan and analyzes its significance to the maintenance work of the wind turbine.
1 fan maintenance, maintenance of the need
Power generation as the wind power owners are most concerned about the topic, has become the first prerequisite for investment and development. In addition to wind resources, land conditions, wind power technology, the latter part of the maintenance, maintenance has gradually begun to be concerned about. In fact, maintenance operation and maintenance as a wind power protection of the last one of the card, the power generation to enhance and stabilize play a role can not be ignored. So how efficient operation and maintenance become the new darling of the owners of managers.
1.1 Increased utilization of wind power
The availability of wind turbines is the prerequisite for the generation of wind turbines, and the timely and efficient maintenance of the wind turbine is of great significance. The availability of the fans can be summarized as (100 fan failure time / fan running time) * 100%. Through this general formula, we can see that with the accumulation of time, the reduction of fault can greatly improve the wind power generation and its income.
1.2 to save production costs
The total investment cost of wind power plant can be roughly summarized as (pre-construction costs, equipment costs, maintenance costs and depreciation rate of wind farms). Through this general formula we can see that maintenance costs as a key factor in the latter part of the operation can be greatly improved back to the time. In fact, fan maintenance costs mainly to spare parts costs. Therefore, how to carry out regular inspection, preventive maintenance, observation and fault analysis has become the main means to reduce maintenance costs.
Therefore, fan maintenance management in the operation and development of wind power plant has a vital significance
2 repair management work difficult
Due to the geographical location of the wind power plant, climate conditions, staffing requirements and other aspects of the constraints, making maintenance management in the actual process there are many difficulties
2.1 lack of relevant personnel, brain drain serious
At present, the experience of the maintenance personnel, most of the focus on the fan after-sales service company, the owner has its own maintenance personnel less, and because the wind power plant is located in remote, long-term out of the reasons such as talent flow and other losses are more common.
2.2 maintenance capacity is not balanced
Part of the staff because of their lack of capacity, improper handling methods, check is not complete, so that part of the fault is completed and repeated reports, which not only affect the fan power generation time, but also caused a number of boarding this unnecessary labor.
2.3 maintenance skills training is difficult to achieve
Fan repair skills learning is a cumulative process, the more the number of boarding, the type of failure encountered by the ability to enhance the faster, but because of the cabin at high altitude, and its internal space constraints, the focus of related skills Training to achieve more difficult, which makes maintenance personnel experience the accumulation of experience is limited.
2.4 shift mode is not flexible
As the wind power plant in which the region is mostly more remote, to travel to the city for a long time, in order to avoid unnecessary consumption of time on the road, the majority of wind power plant maintenance shift on the way for 21 days off 7 days, or 30 days off 10 days Etc., and in the summer when the small wind period, the fan failure rate is low, most people in idle state.
Based on the problems in the process of maintenance and repair of wind power plant and the combination of modern means, this paper puts forward a centralized management idea of fan maintenance work.
3 What is the fan management centralized management
Fan repair remote assistance system, the author is based on the medical community to use the remote consultation system for the design ideas, proposed a fan failure remote consultation system, the basic principle is similar, that is, in the fan and the boost station to build a local area network , Then the network connected with the external network, the use of experienced maintenance experts through the network of audio and video signals, the cabin staff on the actual measurement results, the failure of scientific and efficient analysis, and through the system boarding Personnel maintenance work for remote assistance counseling, so that it can more quickly and accurately determine the point of failure to complete maintenance. But also through the system and related parts manufacturers to establish remote contact, the abnormal operation of large parts to judge, to avoid the manufacturers from time to time and cost of the wind field, but also to ensure that the failure can be quickly obtained as soon as possible to deal with.
3.1 Combine the data and make reasonable arrangements
In the centralized control center or the company headquarters set up maintenance management department, the wind power plant maintenance team in the technical ability, experienced staff together, the daily operation of the wind field information, fault records, maintenance records analysis, combined Day wind speed, weather and staff configuration, etc., must be opened when the remote system to assist, to achieve the comprehensive management of the various wind field maintenance.
3.2 from the overall point of view of the wind field maintenance personnel to carry out a comprehensive deployment
Combined with the wind field maintenance tasks, inspection plans, defect handling plan, will be a period of time failure rate, maintenance work intensity of small wind farm maintenance personnel, short-term deployment to other wind farms, including inspection by Taiwan , Defect handling and other tasks, so that not only to speed up the progress of their tasks, so that people make the best use, while the relevant personnel is also familiar with another model process.
3.3 on a variety of models of the advantages and disadvantages of a comprehensive study
In the realization of centralized management, the wind farm production data, operating data, maintenance records, etc. are concentrated in the maintenance of centralized management center, technical staff through the relevant data analysis, to achieve the optimization of system configuration, such as through water cooling Type gear box cooling system failure rate, the gear box running temperature curve analysis, the overall effect of heat, maintenance and maintenance costs, renovation costs and other comprehensive analysis of the data to determine whether it is necessary to air-cooled gearbox cooling system are modified For the water-cooled type, making the unit configuration is optimized.
4 the advantages of the system after the opening
1, the fan of the common common faults themselves to deal with, for more difficult to analyze the reasons for the failure of large parts of abnormal abnormal sound, the fan is not being given but some parts of the operation is obviously abnormal, etc., through remote assistance, by professional and technical personnel or related Manufacturers to judge, so that both shorten the time spent maintenance, but also to avoid the maintenance personnel due to misjudgment caused by failure to expand, damage to large parts and so on.
2, through the remote assistance system, maintenance personnel for basic skills training, and in the practice and guidance gradually accumulated experience, professionals through remote assistance to guide maintenance, so that it can follow the fault analysis ideas for analysis, help to improve maintenance personnel The ability to analyze, and strengthen its hands-on ability. Remote guidance process, the typical failure of the relevant video and audio data to stay as a backup training materials.
3, for maintenance-related personnel, the workplace moved to the city, can effectively reduce the long-term can not be associated with their loved ones caused by maintenance personnel diverted, job hopping, etc., to avoid the loss of relevant personnel, when the relevant skills are mature , Can be in the wind field personnel and the city's management personnel on a regular basis to avoid some people long-term staff.
4, after the warranty period, for the owners to choose their own maintenance of the wind field, to reduce the technical capacity of the pressure, maintenance personnel only need to have the basic ability to work, if necessary, in the fan manufacturers technical staff under the guidance of the remote can be completed Maintenance work, and gradually in the future practice of gradually raising the level of the company to avoid the hiring of manufacturers or third-party maintenance agencies do not cause costs and disputes.
5, in the actual maintenance process, the fault judgment process consumes the longest time, and some bad points to judge the situation, maintenance personnel used to replace the way to replace the spare parts, often take a lot of detours, through the remote assistance system, The relevant experts to analyze the failure situation, or through the experience of scientific judgment, improve maintenance efficiency, shorten the time-consuming maintenance, and ultimately improve the availability of the fan, to avoid a number of similar situations to trigger the same situation.
5 Conclusion
Reasonable and efficient maintenance method plays an important role in the healthy operation and power generation efficiency of the unit. Through the help of the remote assistance system of the fan maintenance, the centralized management of the maintenance can be realized, the maintenance work is more efficient, the maintenance skill training is more convenient, More efficient, save the wind field operating costs, and thus effectively improve the power generation. Reasonable and efficient maintenance methods for wind power plant operation and maintenance work has a vital significance.