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reactance load
相关语句
  相似匹配句对
     The Load Distributor
     纸机多点传动的负荷分配器
短句来源
     The load was 200N.
     股四头肌腱加载200N。
短句来源
     the augment of external reactance and active power load reduces the inherent damping;
     外部电抗和有功负载的增大导致固有阻尼能力下降;
短句来源
     On-load Voltage Regulating Effect Considering Induction Motor Excitation Reactance
     计及感应电动机励磁电抗的有载调压效应
短句来源
     ANALYSIS OF THE SATURATED SYNCHRONOUS REACTANCE
     饱和同步电抗的分析
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The paper presents the theoretical analysis and digital simulation of the self-ex- citation effect of excitation system in a brushless AC generator at abc coordicate system. It is shown in the result that the self-excitation in half-wave-rectifier is larger than that in full-wave-rectifier unless the reactance-load factor XR very small. The volume of the self-excitation effect varies with excited-winding resistance of the main generator and speed, and there exists a maximum. Finally,a simple way...

The paper presents the theoretical analysis and digital simulation of the self-ex- citation effect of excitation system in a brushless AC generator at abc coordicate system. It is shown in the result that the self-excitation in half-wave-rectifier is larger than that in full-wave-rectifier unless the reactance-load factor XR very small. The volume of the self-excitation effect varies with excited-winding resistance of the main generator and speed, and there exists a maximum. Finally,a simple way to check for the full-self-excitation phenomena occuring possibly is summerized in the paper.

本文运用abc坐标系统下的交流励磁机数学模型,分别对励磁机带全波和半波两种整流方式下的自激作用进行了理论分析和数字仿真分析。结果表明:一般情况下,桥式整流方式下的自激量要比半波方式下的小,但在主发电机励磁绕组电阻R_L较大时,即电抗负载因数较小时却不一定。在R_L和转速n变化时,自激量随其变化,并存在极限值。最后,归纳总结出了在电机设计阶段检查是否可能发生完全自激的方法。

The characteristics of current-linear-amplifier of AC exciter means that the ratio of excitation currents of main generator and exciter is constant,independent on load and temperature. The characteristics is helpful to reduce the range of excitation current of the exciter. This paper presents the theoretical study of the characteristics of current-linear-amplifier of AC exciter in brushless AC generator at constant speed. A digital simulation of the AC exciter with diode-bridge-rectifier load is...

The characteristics of current-linear-amplifier of AC exciter means that the ratio of excitation currents of main generator and exciter is constant,independent on load and temperature. The characteristics is helpful to reduce the range of excitation current of the exciter. This paper presents the theoretical study of the characteristics of current-linear-amplifier of AC exciter in brushless AC generator at constant speed. A digital simulation of the AC exciter with diode-bridge-rectifier load is done at abc coordicate system. The result shows that the characteristics depend on mainly the commutating reactance-load factor and the direct-axis armature reactance of the exciter,and that the greater these two parameters,the better the current-linear-amplifier characteristics is. The realization of current-linear-amplifier of AC exciter is probable by choosing reasonable exciter parameters. It will contribute the red.ucement of load of voltage regulator,and the improvement of performance and output voltage accuracy of brushless AC generator. The results presented here provide useful design information about AC exciter.

着重研究了恒速情况下交流励磁系统的电流线性放大器特性的实现问题。作者采用了abc坐标系统下的凸极同步发电机的数学模型,对交流励磁机带桥式整流电路进行了精确的计算机仿真分析。结果表明,在恒速运行时,电流线性放大器特性的好坏主要取决于电机的电抗负载因素,以及直轴同步电抗大小。通过合理选择电机参数,交流励磁机的电流线性放大器特性可基本得到实现。这对改善电机性能,减轻调压器负担,提高调压精度等有重大意义。

The dynamic characteristics of a rotating-rectifier brushless excitation circuit are simulated on a digital computer and analysed deeply. The dynamic characteristics of full-wave-rectifier and half-wave-rectifier excitation circuits are also compared. The effects of the commutating reactance-load factor and the time constants of excitation windings of exciters and main generators on the dynamic response are shown in the paper, all of these results are helpful to the resonable design of exciters and...

The dynamic characteristics of a rotating-rectifier brushless excitation circuit are simulated on a digital computer and analysed deeply. The dynamic characteristics of full-wave-rectifier and half-wave-rectifier excitation circuits are also compared. The effects of the commutating reactance-load factor and the time constants of excitation windings of exciters and main generators on the dynamic response are shown in the paper, all of these results are helpful to the resonable design of exciters and main generators for improving the performance of the whole electrical control system.

对旋转整流器式无刷励磁电路的动态特性进行了较深入的计算机数字仿真分析。比较了三相桥式整流和三相零式整流两种励磁电路的动态响应特性,得出换相电抗负载因素、励磁机和主发电机励磁绕组时间常数对动态响应时间的影响关系。这些关系的揭示对合理设计旋转整流器式无刷发电机参数,提高整体系统性能具有一定的指导意义。

 
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