How an objective and fair evaluation of photovoltaic power station system running performance, equipment performance? How to find the problems in time, effectively improve the power output? To solve above problems, this paper details the by establishing scientific and quantitative evaluation index
how to objective and fair evaluation system of photovoltaic power station operation performance and equipment operation performance? How to discover hidden danger in time, effectively improve the plant capacity? According to the above problem, through the establishment of a scientific and quantitative evaluation index, elaborated on a period of time the problems existing in the power plant operation maintenance ( System level, equipment level and operation maintenance problem) , thus eliminating equipment fault and hidden danger in time, improve the level of power plant operation maintenance and management, to ensure the safe and reliable operation of photovoltaic power station. Photovoltaic power station in the daily operation maintenance fault levels of scientific classification, according to the degree of the influence of equipment failure, equipment failure can be divided into four levels: a class: endanger the safe operation of the power station main equipment, power grid security or safety defects. B: hazard equipment production safety or the safe and economic operation, affect the normal generator output, in a short period of time is difficult to eliminate the defects. Class c: equipment in the production process of impact generator output or result in the defects of a generator set power outages. Class D: equipment in the production process of general defects. In the daily operation and maintenance, fault timely response and efficient troubleshooting rate, for different fault types, eliminate defects have different response speed requirements. According to the above classification, general requirements of the highest class a and class c defects response speed, the second is class c, and b defect does not require the time limit, but they should respond as soon as possible after the problem occurred. Only in time of failure response, accurate fault location and rapid troubleshooting, can effectively reduce the duration of the equipment failure, thus reducing the power loss caused by equipment failure. In daily operation and maintenance of the power station, which requires timely fault response rate was 100%, troubleshooting rate of not less than 98%. Preventive maintenance on a regular basis through regular preventive maintenance can effectively reduce the frequency of equipment failure, eliminate the hidden trouble in the bud. For example, by fastening components before the arrival of the strong wind pressure, can effectively reduce the component by strong wind blown away. Regularly clean parts can reduce the power loss caused by dust shield. All in all, through the science of fault classification, the timely response and efficient troubleshooting ratio, can effectively shorten the fault duration of equipment, thereby reducing the power loss of failure. Through regular preventive maintenance, can effectively reduce the frequency of equipment failure, prolong the service life of equipment, to ensure the safe, stable and efficient operation of the plant.