According to the generator classical model, the real-time calculation of power-angle is deduced and the result can be got from Newton 'method.
根据发电机经典模型,对发电机功角的实时计算方法进行了推导,并用牛顿法进行了求解。
The voltage converter works in PWM mode. Frequency-control speed regulation, DC voltage supply monitoring of the converter, synchronous motor power-angle close-loop control are combined.
控制策略为逆变器PWM调压、变频调速结合逆变器直流侧电压闭环、同步电动机功角闭环控制。
If all capacitors are located in single spot of line, in the term of improving power-angle stability, then it is the best option that compensation capacitor is placed at the middle of line.
从提高功角稳定性考虑,在单点补偿时,最佳补偿方式是将电容器安装在线路中点。
In view of this problem, under the analysis of power-angle characteristics and stability, a power-angle closed-loop control strategy was proposed and its theoretical basis was presented in detail.
针对永磁同步电动机在他控式变频调速运行方式下的失步和效率问题,通过对功角特性及稳定性分析,提出了一种功角闭环控制策略并详细阐述了该控制策略的理论依据。
Every entrepreneur or multinational has an Angle on how to tap into the emerging consumer's new spending power, and investors have been pouring into consumer stocks.
关于如何利用新兴消费者新近获得的消费能力,每个企业家或跨国公司都有着自己的视角,投资者一直源源不断地涌入消费股。
As for the problem the high current and the vibration of the torque, the double closed loops which include the current and power factor Angle are worked out.
对于电动机起动需要控制起动电流和转矩震动的问题,采用双闭环的控制方案,即电流闭环控制和功率因数角闭环控制。
This paper touches upon gravitational radiant power and radiant Angle distribution of space rectangular lattice arrays of mass quadrupole oscillators, and gives analytic expression.
本文讨论了质量四极振子空间矩形点阵阵列的引力辐射功率和辐射角分布,并给出了解析表达式。
In this paper, the investigation of the variations of the peak power and phase Angle of a laser beam passing through a turbulent shear layer is discussed.
本文论述一个由流体力学和光学联系起来的新课题——激光通过湍流剪切层后的相位变化及峰值功率变化。
Based on equivalent circuit of asynchronous motor in stable state, the relationship between power factor and slip Angle frequency was deduced.
从异步电机的稳态等效电路出发,推导出了功率因数与转差角频率之间的关系。
A transient Angle unstable mode of power system closely relates to a controlling unstable equilibrium point (UEP).
电力系统暂态功角失稳模式同相关不稳定平衡点密切相关。
A method for estimating the parameters of incident wave Angle and incident power by the use of the extended kalman filter is proposed.
提出了采用扩展卡尔曼滤波器估计入射波参数(入射角度和入射功率)的方法。
The distribution of laser beams' intensity leads to such important spatial parameters as oscillation modes of laser device, divergence Angle of laser beams, the power of laser beams, laser radius etc.
根据激光束的强度分布信息,可得到激光束的其他空间参数,如激光器的振荡模式、光束发散角、光束功率、光斑半径等重要参数。
His social power history covers whole human history with convincing interpretation, new Angle and strong sense of theory.
曼的社会权力史涵括整个人类史,其解释力强、角度新颖、理论性强。
Laser compared to other lights has the characteristics of higher power, less divergence Angle, better monochromaticity, shorter light pulse and continuously tunable spectrum output.
激光与其它光相比,具有功率高、发散角小、单色性好,输出的光脉冲窄和输出光谱可连续调谐的特点。
The combustion stability of an imported 800MW boiler in Suizhong Power Plant is controlled by its central air quantity and the vane angle of second air.
绥中电厂引进的800MW锅炉机组燃烧稳定性是通过调整中心风量和二次风叶片角度得到的。
Influences of the incident Angle for wave and plasma parameters such as temperature, density and location of resonance layer on wave traces and power deposition distribution were studied.
研究了等离子体温度、密度和共振层位置等参数及波的入射角对波迹和功率沉积分布的影响。
An algorithm based on the magnitude and phase Angle of the generalized phasor to measure instantaneous frequency and swing frequency while the power swing occurred is presented.
提出了一种基于综合相量幅值和相位变化规律实时测量电力系统振荡中振荡频率及瞬时频率的算法,利用三相电流经相应变换获得综合相量。
This paper discusses the basic principle which the inverted firing angle of thyristor inverter has the influence on power factor of a cascade connected device.
本文论述了可控硅逆变器逆变角影响串级调速装置功率因数的基本原理。
The objective of DC power modulation is to damp the relative swing of angle and frequency of the two areas from COI.
直流输电线路功率调制的目标是阻尼区域COI功角和频率间的相互振荡。
The actuator at an angle can change greatly the primary jet direction and has a good effect on thrust vectoring without increasing input power.
在不增加激励器输入功率的情况下,带倾角激励器可以极大地增加主流偏转角度,推力向量控制效果很好。
The machine is the special equipment used for angle steel type, punch, cutting etc. and automatic production in the field of power and telecommunication.
该机为电力电讯角钢塔进行角钢打字、冲孔、剪切、全自动化生产的专用设备。
A variable structure controller for Static var Compensator (SVC) which can improve power Angle stability of power system and local voltage characteristics of SVC is proposed.
本文提出了能同时改善电力系统功角稳定和装设点电压动态特性的用于静止无功补偿器(svc)的变结构控制器设计方法。
Elements that affect the output power factor Angle are analyzed, the basic principle of constant power factor Angle control is studied and its realization scheme is presented.
分析了影响功率因数角的因素,研究了定角控制的基本原理,给出了定角控制方法的实现方案。
The power supply voltage line includes an edge part formed in an obtuse Angle.
电源电压线包括形成钝角的边缘部分。
The theoretical resolution is analyzed, it is mostly decided by the crystal resolving power, and it can be raised with the Bragg angle accretion.
研究了谱仪的理论分辨率,它主要取决于晶体本身的分辨率,随布拉格角增大而提高。
The amplitude distribution, power spectrum and parameters are discussed briefly based on the return at a high grazing angle.
随后以大擦地角的回波信号为例,简要分析了杂波模型的幅度分布、功率谱和参数的特性。
Meanwhile, under two-group instability modes, it is discovered that the curves between electric power of generator unit and rotator's angle in relative to center of inertia is a sine curve.
同时本文在二群失稳模式的假设下,得出了机组电磁功率与转子相对惯性中心角的变化曲线为一正弦曲线。
To make full use of the WAMS/PMU in the security monitoring, protection and control of power system, PDSR in phase angle-voltage space was studied.
为充分发挥含PMU的广域量测系统(W AM S/PMU)在电力系统安全预警、保护与控制中的作用,研究了节点相角-电压空间上保证暂态稳定的动态安全域的边界性质。
To make full use of the WAMS/PMU in the security monitoring, protection and control of power system, PDSR in phase angle-voltage space was studied.
为充分发挥含PMU的广域量测系统(W AM S/PMU)在电力系统安全预警、保护与控制中的作用,研究了节点相角-电压空间上保证暂态稳定的动态安全域的边界性质。
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