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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
For overvoltage protection, a crowbar circuit turns on the low-side MOSFET when the feedback signal goes high by more than 7%.
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| | The suitability of variable speed constant frequency wind turbine with doubly-fed induction generator(DFIG) for new grid operator rules is analyzed.New grid rules require that the wind turbines remain connected during voltage dip in the grid.A survey of the problems associated with voltage dip and methods for ride through operation of this type of system are presented.At the same time their merits and drawbacks of different crowbar circuits are analyzed.Finally,the future trends and emphases in the pr... | | 电网运行新规则要求变速恒频双馈感应发电机在电网电压跌落的情况下仍与电网相连接,为做到这一点需要安装低压旁路系统。综合分析了低压带来的负面影响以及低压旁路的具体实现方法;对比了多种Crowbar电路各自的优缺点;最后介绍了变速恒频双馈发电机相关保护控制策略和新型旁路系统。 | | 文摘来源 | | The new regulations of power grid operation require that wind turbine-generator keep connected with the grids even in the situation of grid voltage drop. Based on the connection between wind turbines and grids, proper protective measures and necessary equipment, such as equipping with Crowbar low voltage bypass system, using circuits with UPS inverter, or using Crowbar circuit with UPS inverter, are needed. These protective measures have their own merits and disadvantages, thus, they have to be ... | | 电网运行新规则要求风力发电机在电网电压跌落的情况下仍与电网相连接,这需要根据风力发电机同电网的具体连接情况,采取适当的保护措施,安装必要的设备来实现。例如:安装Crowbar低压旁路系统、采用带UPS逆变器的电路和带UPS逆变器的Crowbar电路等。这些保护措施各有其优缺点,在具体设计时,应根据实际情况合理选择。 | | 文摘来源 | |   |
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