通过对放纸辊电机运行特点的分析，说明在选择电机额定功率时，关键是计算电机的最大负载电流。
Based on the analysis of operation characteristics of the unwind motor, we proved that the calculation of the motor's maximum current is the key for selecting the motor rated power.
另外，本文还就异步电机在非额定状态下运行时，输出功率的计算公式及如何实现效率优化等问题进行了讨论。
Moreover, this text discuss the calculation formula of the output power when motor is working at unrated circulation and how to realize excellent efficiency.
永磁体分散性对空载电流、空载功率因数、负载功率因数和过载能力影响较大，而对额定运行时的效率、电流影响不大。
In addition, the dispersibility has great effects on the noload current and power factor while the effect on rated efficiency and rated current is little.
在30 %额定功率运行时所作的全厂瞬态试验表明，五个控制系统基本上达到了电厂运行要求。
The performance of those control system during plant transient testing at 30 % of full power reach the requirement of the plant normal operation.
另外，当发电机以额定电压啊，电流运行时，其出力(输出功率)频率允许在上下5%内跳动。
In addition, the output frequency of a motor generator set shall not vary by more than 5% when operated at rated output voltage and current.
数字仿真表明，在风速低于额定风速时变速运行捕获能量比恒速运行捕获能量大；节距调节控制可以很好地使输出功率稳定在额定功率左右。
The simulation results indicate that wind turbine is operated at maximum power coefficient with variable-speed mode and the output power of generator is kept around rated power with pitch control.
额定功率：在变动负载功率情况下，机组连续运行，每12小时允许1小时超载10%。
Rated power: changes in the power load, the continuous operation of generating units, each 12 hours to allow 1 hour overloading 10%
额定功率：在变动负载功率情况下，机组连续运行，每12小时允许1小时超载10%。
Rated power: changes in the power load, the continuous operation of generating units, each 12 hours to allow 1 hour overloading 10%
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