1. State-based operation and maintenance
Real-time monitoring of power station status and power generation, fault alarm.
2. Preventive maintenance
Regularly repair and maintain power plant equipment and environment, and conduct line inspection and vegetation control.
3 Troubleshooting and maintenance
Troubleshoot, manage, record reports and ensure efficiency ratio.
In addition to the natural environment, power grid standard and power station layout, the maintenance and monitoring after the power station is put into operation is also a problem that must be considered in the scheme design of the power station, which is of great significance to the future revenue growth, asset evaluation and risk control of the power station.
Most of the industry's attention to the technical upgrading of photovoltaic power plants is focused on the framework of initial scheme selection, equipment technical parameters and function upgrading, while less attention is paid to the detailed management, maintenance and monitoring of the power plant's 25-year operation.
In addition to the revolutionary breakthrough in the future scheme route, the industrial transformation brought by the substantial improvement of equipment conversion efficiency, the cost and benefit brought by power station maintenance and monitoring will become the differentiation of power stations, and the generation of differentiation has been determined at the beginning of power station selection and design.
Power station maintenance, in addition to routine product inspection, fault judgment, equipment maintenance or replacement, and equipment upgrading according to power grid regulations or power station monitoring and management requirements, must also be considered. These maintenance tasks are closely related to the quantity, distribution and concentration of power plant equipment.
Especially for the maintenance of power stations after the warranty period, with the continuous increase of labor costs, the maintenance man-hour cost of domestic photovoltaic power stations will be close to that of foreign power stations, accounting for a substantial increase in operating costs.
The construction and upgrading of power station monitoring and management platform is a necessary means for the power station to maintain a good power generation state, quickly locate and accurately analyze faults, and will also reduce the man-hour investment in after-sales service of equipment such as routine product testing, which is one of the important differentiated contents of photovoltaic power stations.
On the one hand, monitoring communication equipment depends on the number of monitored equipment, on the other hand, it depends on the dispersed area of monitored equipment, and it is also related to the number and distribution concentration of equipment in the initial scheme design of power station.
The maintenance time is directly related to the power generation income of the power station. Therefore, troubleshooting time, equipment failure rate, equipment maintenance labor and equipment cost, power generation loss, etc. It should also be considered in the initial design scheme of the power station, especially in the operation period of the power station with relatively high failure frequency after several years of warranty.
Power station maintenance and monitoring is an area where the photovoltaic industry will inevitably change its revolutionary technology or business model in the future, which brings certain potential risks to the current design scheme while making unlimited development possible.
In the long run, the design of power station maintenance and monitoring needs to consider not only the influence of scheme maturity and development space, but also the application history accumulation, marginal cost and future sustainable management and innovation ability of scheme suppliers. Choosing a plan is to choose a long-term partner.
According to reliable data, according to the design value, the average annual output of photovoltaic power generation is about 10wm. The actual newly installed panel is about 8%- 10% higher than the design value in the first three years, and then gradually decreases.
The electricity price is 1. 15 yuan/kwh, so the annual power generation is calculated as160,000 kwh, and the income is about184,000 yuan.
If it is not clean, it has been compared in practice based on the analysis of the influence degree of dust in the west. The power generation efficiency of washed panels in one week is 8%- 10% higher than that of unwashed panels, and it decreases day by day. The time efficiency is only about 1%-2% higher in about one month (the test time is in March-April of sandstorm season).
According to the design value 10 MW and the income15.83 million kwh. The average cleaning efficiency is improved by 6%, and the economic loss can be reduced by 6.5438+0.09 million yuan. After deducting 200,000 yuan of cleaning labor wages and management fees, there is at least a surplus of 890,000 yuan, which is a conservative value.
The maintenance of electrical equipment is mainly to check whether the electrical equipment has aging, dust accumulation, hidden trouble and loss of function.
The restoration of pid in power station is mainly to restore pid power according to the actual operation and setting of power station.
When the power station fails, analyze and find the fault location in time, and then check the fault to improve the operation rate of the power station.
I hope Kojima's answer can help you. If you are satisfied, please help Kojima adopt it. I wish you and your family happiness and health forever!