Reliability Evaluation Of A Distribution System Connected With WTGS

Distribution power system is at the end of the whole power system, it is connected directly to the users, so it is a very important tache to supply and distribute electric power to the users. According to statistics, 80% of the power interruption is resulted from the fault of distribution system. So, it is a significant work to strengthen the reliability research of the distribution system and to improve the continuity and power quality of power supply. Papers of scholars at home are mostly focused on presenting new arithemetic and the simplification of the complex distribution network.The main content of this thesis is concluded in the following:1. take the weather into consideration , analyze the impact of weather to the whole distribution network.2. analyze the impact of the wind turbine generation to the distribution network, the WTGS can be connected into the network as the alternative of traditional alternative power source, also, it can be connected at a location nearby the load. WTG is sensitive to weather, wind decides the output , the cut-in and cut-off of the WTGS , so the network structure is probably effected when WTG added. Furthermore, WTGS are connected to the network generally through a step-up transformer, the transformer's fault probability is high and this paper covers this factor.3. take the IEEE-RBTS Bus6 as model, deal with the original data of the line. Meanwhile, analyze the impact of WTGS to the whole distribution system.