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机构地区:[1]东北电力设计院
出 处:《国际电力》2005年第6期20-23,共4页
摘 要:讨论德国电网规程关于风机的一些规定。在风电机组被大量应用的同时,几千MW的风电损失成了德国电力系统中的现实场景。问题的关键是电网故障时如何保证风机仍能连在电网上,即只要联网点的电压在15%Un以上风机和风电场就不允许解列。此外,在电网故障时风电机组应根据瞬时电压的情况提供一定的无功。而且,风机必须快速返回至正常操作。风机必须承受的频带为47.5~51.5 Hz。对于德国网调而言,他们希望将来大型风电场应该象常规发电厂一样调度运行。This paper discusses issues of German grid codes relating to wind turbines. With the high utilization of wind power a simultaneous loss of several thousand MW wind generation became a realistic scenario in the German power system. Therefore, the main requirements concern the fault ride through capability of wind turbines. Accordingly, disconnection of wind turbines and wind farms above 15% nominal voltage at the grid connection nodes is not allowed. Besides, following network faults wind turbines have to supply a definite reactive current depending on the instantaneous voltage. Furthermore, they must return quickly to normal operation. The frequency range wind turbines have to tolerate is about 47.5 - 51.5 Hz. According to the wishes of German transmission grid operators large wind farms have to be treated in the future like conventional power plants.
关 键 词:风力发电 电网运行规程 可再生能源 电力系统动态 无功控制
分 类 号:TM71[电气工程—电力系统及自动化]
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