The performances of excitation control system must fit all the different operation conditions of generator, such as no load operation, loading, load rejection and different kinds of faults.
本文论述了励磁控制系统应满足发电机各种运行方式的要求，如负载运行、空载运行、系统故障等不同情况。
Therefore, the fluid differential circuit can not only increase the speed of the no-load operation of the piston rod in the system, but also save energy, and prolong the service life of the system.
因此，该流体的差动回路既可提高系统中活塞杆空载运行的速度，又可节能，延长系统使用寿命。
Lifting operation hydraulic system should be no-load operation, adjust the lifting sleeve frame roller and the mast section clearance, hoisting torque and balance torque balance;
顶升作业时液压系统应进行空载运转，调整顶升套架滚轮与塔身标准节的间隙，使起重力矩与平衡力矩保持平衡；
These currents are assumed to be armature currents in respective slots for both models under no-load operation.
对于空载下的两个模型，这些电流假定为在各自槽内的电枢电流。
Under no-load operation, how to set the PID parameters and prevent misfit among the parameters is concerned in hydro-turbine regulation.
在机组空载工况下如何整定PID参数及防止参数间配合不合理，是水轮机调节关心的问题。
Under no-load operation, how to set the PID parameters and prevent misfit among the parameters is concerned in hydro-turbine regulation.
在机组空载工况下如何整定PID参数及防止参数间配合不合理，是水轮机调节关心的问题。
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