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system     
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  系统
    A Study on Digital Real-time Dynamic Simulation and Testing System for the Excitation Regulator of Synchronous Generator
    同步发电机励磁数字动态仿真测试系统的研究
短句来源
    EXPERIMENTAL STUDY ON THE PARTIAL DISCHARGE PHENOMENA ON OIL/PAPER INSULATION SYSTEM UNDER X-RAY IRRADIATION
    X射线激励下油/纸绝缘系统中局部放电现象的实验研究
短句来源
    Reducing Harmonic Distortions in Power System with Intelligent Control
    智能控制在电力系统谐波抑制中的应用
短句来源
    Research on Power System Intelligent Reactive Power Optimization and Quasi Real Time Reactive Power/Voltage Control
    电力系统智能无功优化及准实时无功/电压控制的研究
短句来源
    Application of Time-Varying Dynamic Phasor Theory in Analysis of Electric Power System
    时变动态相量理论在电力系统分析中的应用
短句来源
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  控制系统
    A Study on the Excitation Control System For AC Excited Generator
    交流励磁发电机励磁控制系统的研究
短句来源
    Research on Optimization Design and Control System of Linear Induction Motor Used in Elevator
    电梯用直线感应电机的优化设计及其控制系统研究
短句来源
    Study on a Class of Backlash Nonlinear Control System
    一类齿隙非线性控制系统的研究
短句来源
    Study on Thrust Force of Permanent Magnet Linear Synchronous Motor and Its Direct Thrust Force Control System
    永磁直线同步电机推力及其直接推力控制系统研究
短句来源
    Research on the Control System of Gas Engine Cogeneration Unit
    燃气发动机热电联产机组控制系统研究
短句来源
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  装置
    Research on the Engineering of Stability Control Device Used in Power System
    电力系统稳定控制装置的工程化研究
短句来源
    Research on the Test System and Charging Device of Dynamic Voltage Regulator
    动态电压恢复器检测系统和充电装置技术的研究
短句来源
    IEEE Transactions——on Power Apparatus and System
    美国《IEEE》会刊目录中文索引——电力装置与系统
短句来源
    Analysis of Power System Protective Relay and Automatic Device Performance and Associated Faults in 1984.
    1984年全国继电保护和安全自动装置动作及有关故障分析
短句来源
    An Automatic Failure Diagnosis System for Power Electronic Equipment
    用微机自动诊断电力电子装置的故障
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  系统性
    Behaviou Analysis of System of YT-LT Duplex Loop Transfonned from ST-LT Duplex Loop
    由ST-LT双环转为YT-LT双环的系统性能分析
短句来源
    Property Analysis of the New Microproessor-Based Fault Locating System in AT Feeding System for Electric Traction
    AT供电牵引网新型微机故障测距系统性能分析
短句来源
    On the Current Waveform of Switched Reluctance Motor Drives and its Kffects on the System
    开关磁阻电机驱动系统电流波形及其对系统性能的影响
短句来源
    ANALYSES OF PERFORMANCE FOR AN ELECTRICAL EXPLODING OPENING SWITCH TRANSMISSION LINE ENERGY STORE POWER SYSTEM
    电爆炸丝开关-传输线储能功率系统性能分析
短句来源
    The experiment result shows that the digital control system based on TMS320LF240 7A is reliable and free from load disturbance,not only can meet the requirement of real time control,be convenient to realize any advanced control strategy,but also is simple,high reliable and has high application worth.
    实验表明,以TMS320LF2407A为核心的数字控制系统性能稳定,抗干扰能力强,不仅能够满足实时控制的要求,易于实现先进的控制策略,而且该设计方案电路简单,可靠性强,具有较高的应用价值。
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      system
    This implies that a system is algebraically integrable (i.e., its eigenvalue problem is explicitly solvable in quadratures) if and only if the differential Galois group is commutative for generic eigenvalues.
          
    We apply this criterion of algebraic integrability to two examples: finite-zone potentials and the elliptic Calogero-Moser system.
          
    In the second example, we obtain a proof of the Chalyh-Veselov conjecture that the Calogero-Moser system with integer parameter is algebraically integrable, using the results of Felder and Varchenko.
          
    The least upper bound for the degrees of elements in a system of generators turns out to be independent of the number of vector variables.
          
    We consider 3-parametric polynomialsPμ*(x; q, t, s) which replace theAn-series interpolation Macdonald polynomialsPμ*(x; q, t) for theBCn-type root system.
          
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    An electronic circuit which may be applied to the control of firing angle of high voltage mercury arc current converter is suggested in this paper.The circuit mainly consits of two parts:the primary pulse generator and the secon- dary pulse former.Between these two parts is inserted an insulating transfo- rmer which transmits the control paise and isolates the high potential difference between them.The primary generator generates the control pulses and determinates their phase.The secondary pulse former supplies...

    An electronic circuit which may be applied to the control of firing angle of high voltage mercury arc current converter is suggested in this paper.The circuit mainly consits of two parts:the primary pulse generator and the secon- dary pulse former.Between these two parts is inserted an insulating transfo- rmer which transmits the control paise and isolates the high potential difference between them.The primary generator generates the control pulses and determinates their phase.The secondary pulse former supplies the power, necessary for gridcontrol,and formes the configuration of the pulse.This circuit has been used in a model of high voltage d.c.power transmission system. Experimental result shows that the quality of the pulse in this system is better than that of the commonly adopted magnetic system,but the interference in this syetem needs eliminating.

    本文提出了一种电子的栅极控制线路,可用来控制高压离子变流装置的工作。控制线路主要包含一次脉冲发生器和二次脉冲装置二部分,在这二部分之间有绝缘变压器,负责传递脉冲电压并隔离高电位。一次脉冲发生器负责控制脉冲的移相和产生;二次脉冲装置则完成脉冲的整形供给控制脉冲必要的功率,本钱路曾经用在直流输电模拟装置中;实验结果初步证明脉冲质量较现有磁性系统优越,但干扰问题有待改进。

    In this paper, the method of excitation regulation according to voltage deviation with a high coefficient of amplification is investigated, with an analysis of stability and instability regions, a study of the excellent effect of such regulation in improving the stability of electric power systems, and a discussion of the restrictions on its application imposed by the time constants of the exciter and the regulator.The effects of introducing into the regulating system the first and the second derivatives...

    In this paper, the method of excitation regulation according to voltage deviation with a high coefficient of amplification is investigated, with an analysis of stability and instability regions, a study of the excellent effect of such regulation in improving the stability of electric power systems, and a discussion of the restrictions on its application imposed by the time constants of the exciter and the regulator.The effects of introducing into the regulating system the first and the second derivatives of voltage and current as regulating factors in addition to voltage deviation are also analyzed. Finally, several regulation systems are recommended for exciters with Smaller and larger time constants.

    本文研究了按电压偏差特大放大系数调节励磁方式的某些规律,分析了它的振荡区和稳定区的特点及其在提高系统稳定性上的优异作用;讨论了励磁机和调节器时间常数对此种调节方式的制约条件。 文中还在按电压偏差特大放大系数调节的基础上,对引入电压一次、二次导数和引入电流一次、二次导数调节的作用与调节品质进行了分析,指出了适合于具有较小和较大励磁机时间常数情况下的几种调节方式。

    The author attempts to derive the transmission loss formula for a rather complicated power system having multiple load points. He has analyzed thoroughly systems of various patterns possibly obtained from network reduction, and has succeeded in expressing the total transmission loss as a sum o?those resulting from the transfer of incremental power from each source to the various load points. As a result of this, it will be possible to coordinate the incremental transmission loss with the incremental...

    The author attempts to derive the transmission loss formula for a rather complicated power system having multiple load points. He has analyzed thoroughly systems of various patterns possibly obtained from network reduction, and has succeeded in expressing the total transmission loss as a sum o?those resulting from the transfer of incremental power from each source to the various load points. As a result of this, it will be possible to coordinate the incremental transmission loss with the incremental production cost individually at each source.The method of writing out directly from the network configuration the transmission loss formula is also given. An example is given for evaluating its accuracy.

    作者企图从动力系统最基本的功率传送方程出发,来推导具有多个负荷中心的复杂动力系统的网损计算公式。他对等值简化后可能出现的各种结构的系统,进行了透彻的分析研究,并把系统总的网损增量最终分解为从各个电站向各个负荷中心传送负荷增量所产生的附加网损之和。由于得到这样的结果,便有可能把网损校正工作分别在各个电站上独立进行。 文中还说明了按照网络结构图形,直接写出这网损校正公式的方法,并举例说明这公式的准确程度。

     
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