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直流故障
相关语句
  dc fault
     Neural network approach for DC fault diagnosis in nonlinear circuits
     可诊断非线性电路直流故障的神经网络方法
短句来源
     Discussing the 2004 HV DC Fault Safety-stabilization Control Policies of CSG
     2004年南方电网直流故障安全稳定控制策略的探讨
短句来源
     Experimental Research of the dc Fault Dictionary Approach
     直流故障字典法的实验研究
短句来源
     AN EFFICIENT DC FAULT SIMULATION ALGORITHM FOR NONLINEAR CIRCUITS
     非线性电路直流故障模拟的一种有效算法
短句来源
     Neural Network Approach for DC Fault Diagnosis in TV Circuits
     电视电路直流故障的BP网络快速诊断
短句来源
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  “直流故障”译为未确定词的双语例句
     Neural Network Approach for DC Faultdiagnosis in TV Circuits
     基于BP网络快速诊断电视电路直流故障
短句来源
     Restoration Strategies for the South China Interconnected Power System After Generator Tripping Following DC System Fault
     南方电网因直流故障切机后的恢复策略
短句来源
     Frequency Accident Analysis in East China Grid Due to DC Line Fault
     华东电网因直流故障的频率事故分析
短句来源
     After that the approach of automatically generating the fault dictionary is discussed, and a general diagnosis program for analogue circuits has been written to implement these techniques.
     依故障诊断树进行变节点诊断。 在此基础上,讨论了字典法的自动实现方法,编制了通用模拟电路直流故障诊断软件。
短句来源
     : This paper presents a method in which the effect of nonlinear elements in Trick fault equations is screened out by choosing the excitation vectors of accessible nodes and adjoint networks properly.
     用K故障法与元件参数解法相结合的办法进行了非线性网络的直流故障诊断。
短句来源
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  相似匹配句对
     Analysis on the hitch of DC converter
     直流换向器的故障分析
短句来源
     Usual Trouble Analysis of DC Motors
     直流电动机的常见故障浅析
短句来源
     the malfunction diagnosis of cutting processing;
     故障诊断 ;
短句来源
     Basic Direct Current Circuits
     直流电路
短句来源
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  dc fault
An efficient DC fault simulation algorithm for nonlinear circuits
      
An efficient DC fault simulation algorithm for nonlinear circuits is proposed in which Householder's transform and the method of partitioned matrices are used to minimize the number of operations for fault simulation.
      
Canonical piecewise-Linear analysis for nonlinear DC fault circuits
      
This paper uses canonical piecewise-linear analysis method to analyze nonlinear DC fault circuits and solve for the values of the test port voltages which are selected beforehand.
      
TBSA: Threshold-Based Simulation Accuracy Method for Fast Analog DC Fault Simulation
      
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An pfficient DC fault simulation algorithm for nonliuear eircuits is proposed in which Householder's transform and the method of partitioned matrices are used to minimize the numher of operations for fault simulation. The algorithm is also applica-ble to DC analysis for nonlinear circuits.

本文给出了非线性电路直流故障模拟的一种有效算法。它利用豪斯霍尔德变换和分块矩阵的方法。尽可能地减少了故障模拟的运算量。本算法也适用于非线性电路的直流分析。

The planned Three-Gorge Hydro Project (TGHP) is located in The Central Power Network of China (CPNC). CPNC and The East Power Network oE China are planned to achieve the interconnection through two bi-poie DC links and three circuits of 500kV AC power ties for transfering about 6000-7000MW of electric power from the west to-the east. In order to enhance the transmission capability of the ties, the DC modulation principle, and its results, and its function in the TGHP AC-DC parallel transmission system are described...

The planned Three-Gorge Hydro Project (TGHP) is located in The Central Power Network of China (CPNC). CPNC and The East Power Network oE China are planned to achieve the interconnection through two bi-poie DC links and three circuits of 500kV AC power ties for transfering about 6000-7000MW of electric power from the west to-the east. In order to enhance the transmission capability of the ties, the DC modulation principle, and its results, and its function in the TGHP AC-DC parallel transmission system are described in this paper. The minimal time control theory is used for DC modulation and the sub-optimum control modes are suggested, i.e. phase angle shif (A) and frequency shif (f) modulating modes. During fault condition either in EHVAC or HVDC, 0 or f is used as a control signal to change the transfer power of HVDC immediately, thus the whole interconnected AC-DC system will reach a stable state within a minimal time period. As the digital study indicated that the power unbalance between the sending and receiving ends caused by either the severe fault on the EHV tie-line or the permanent fault on two poles of HVDC line can be decreased rapidly, and the power oscillation can also be damped effectively. Using above stated modulation method, the transfer capability of TGHP can be increased by 10%. Instead of DC modulation, the strategy of generator triping 4x500MW at TGHP will be necessary to maintain similar stability level.

本文利用最短时间控制原理研究三峡直流调制,并按次最优控制提出了两种直流调制方法。该方法对交流故障和直流故障均适用,可以有效地抑制系统振荡,明显改善系统的暂态稳定性能,提高交直流并联输电的能力。本文还对直流调制与切机措施作了比较。同时对直流调制信号的选取及调制量的整定也作了探讨。

The canonical piecewise-linear method is used to analyse the nonlinear DC fault circuits and determine the potential at the preseleted test ports in the circuit. The method needs less storage capacity and has higher computing efficiency. It is a good method for analysis of fault circuits

本文应用规范型分段线性法进行了非线性直流故障电路的分析,求解了预先选为测试端口的端口电压值。该法需要的贮存量少,经有限步即可得到解答,计算效率高,并且适用于含有多端口非线性元件的电路,是一个故障诊断测试前模拟法,是分析测试前故障电路的好方法。

 
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