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composite power
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  组合电力
     Probabilistic Modeling to Composite Power System Security
     组合电力系统安全性的概率建模
短句来源
     MODELING AND STABILITY ANALYSIS OF COMPOSITE POWER SYSTEMS INSTALLED WITH SVC
     含SVC的组合电力系统动态建模及稳定性分析方法
短句来源
     From the view of operation, three active power correction strategies in reliability worth assessment of composite power system are researched and compared by sensitivity arithmetic based on taxis indexes, and on the basis of the software platform for reliability worth assessment, the correspondent software for reliability worth assessment is perfected and exploited in this thesis.
     本论文从运行的角度,提出了基于排序指标的灵敏度算法对组合电力系统可靠性价值评估中的三种有功安全校正策略进行了研究和比较,并在可靠性价值评估软件平台的基础上完善和编制了相应的可靠性价值评估软件。
短句来源
     A probabilistic method is applied to the reliability evaluation of the adequacy and stability of composite power systems.
     采用概率方法对组合电力系统的充分性和稳定性进行综合评估。
短句来源
     Considering the sudden changes of current or/and voltage in a composite power system due to the switching on and off of FACTS devices in the system, this paper presents a detailed dynamic model of the modulation process of the static var compensator (SVC).
     针对包含 FACTS元件的组合电力系统电压或电流因开关特性而发生突变以及系统拓扑周期改变等特点 ,提出对 SVC调制工作过程建立包括发电机在内的详细动态模型。
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  “composite power”译为未确定词的双语例句
     Study of Preparation of B_4C-Ni60 Composite Power for Thermal Spraying and Wear Resistance of Its Coatings
     热喷涂用Ni60-B_4C复合粉制备及涂层耐磨性的研究
短句来源
     Study of Preparation of B4C-Ni60 Composite Power for Thermal Spraying and Wear Resistance of its Coatings
     热喷涂用B4C-Ni60复合粉制备及涂层耐磨性的研究
     It is very important for the decrease of the composite power coefficient to increase power density, especially increase volumetric power density.
     提高功率密度特别是提高体积功率密度对于减小综合功率系数非常重要。
短句来源
     Composite Power Switching Semiconductor Models and Their Parametric Sensitivity Analysis
     组合功率开关半导体模型及其参数敏感性分析
短句来源
     Composite power supply with high power density
     高比功率复合电源
短句来源
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  相似匹配句对
     power;
     权力 ;
短句来源
     the power;
     动力论;
短句来源
     Nano-Power Composite Coatings
     纳米复合镀层的研究现状
短句来源
     Application of the composite material in power plant
     复合材料在发电厂的应用
短句来源
     Conducting Composite
     导电复合材料
短句来源
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  composite power
A relation between the Riesz potentials associated with composite power functions on a matrix space and the solutions of the heat equation is established.
      
These potentials are in a relationship with the composite power function of a matrix argument.
      
Riesz potentials associated with a composite power function on the space of rectangular matrices
      
A novel approach for the construction of the equivalent two-state models for base load generating units with derated states is suggested in order to reduce the computational burden in composite power system reliability (adequacy) evaluation.
      
Modeling the base load generating units with derated states in composite power system reliability evaluation
      
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In the basic metal industry energy-dispersive radioisotope X-ray fluorescence analysers are used for quality control of the products from all stages of mineral pro- cessinsg, melting and refining. Accuracy of measurement mainly depends on the ele- ment of interest and the form and composition of the host matrix. In energy-dis- persive XRF analysis the intensity of fluorescent X-ray from the wanted element must be measured independently of variations in intensities of other X-rays emitted by the sample. It is...

In the basic metal industry energy-dispersive radioisotope X-ray fluorescence analysers are used for quality control of the products from all stages of mineral pro- cessinsg, melting and refining. Accuracy of measurement mainly depends on the ele- ment of interest and the form and composition of the host matrix. In energy-dis- persive XRF analysis the intensity of fluorescent X-ray from the wanted element must be measured independently of variations in intensities of other X-rays emitted by the sample. It is well known that scintillation detectors can not resolve the energy of fluorescent X-rays of some neighbouring elements such as copper and iron, and to overcome this limitution. A metal composite filter of absorption edge type can be used. This type of filter is a special one, which can discriminate X-ray energy higher than that of the interference elements. However, the conventional filter of absorption edge can only be used for X-ray energy of the wanted element lower than that of interference elements. Thus, we suggest that the metal com- posite filter of absorption edge type should be used when the X-ray energy of the wanted element is higher than that of the interference elements. It's mainly for use in immersion probes. This filter is made of N-L composite power. When mea- suring copper in copper concentrate, the absolute error of the grade achieved is most- ly less than ±0.3% and this can fully meet the demand of industrial process control analysis. From above, it can be predicted that in other pulp on-stream analysis, a relative composite filter can certainly be made if only the content of the neighbor- ing elements is high and the X-ray energy of the element to be measured is higher than that of the interference elements. This research work covers these respects: the preparation of N-L composite powder, the blending ratio test of two elements, the minimum mass thickneess test at the given blending ratio, the modulation and testing of the filter performance and test measurement on the sample of natural powder.

本文介绍的复合元素滤光片,主要供XRF分析装置的浸入式探头使用。直接激发型浸入式探头,通常采用吸收限型滤光片,其使用原则限于被测元素的X射线能量低于干扰元素的X射线能量;但当被测元素的X射线能量高于干扰元素的X射线能量时,就不能使用吸收限型滤光片,若采用复合元素滤光片就能顺利地加以解决。用复合元素滤光片测定铜精矿中含铜量在10~22%范围内的样品,其绝对误差小于±0.3,满足控制分析精度的要求。

A reliability security evaluation algorithm is proposed based on Monte Carlo simulation and the transient energy function. Indices are defined to describe the reliability security. The reliability assessment of composite power system consists of adequacy and security evaluations. The adequacy evaluation describes the static performance of the power system based on the power flow calculation, while the security is the ability of the system to withstand disturbances analyzed using the transient...

A reliability security evaluation algorithm is proposed based on Monte Carlo simulation and the transient energy function. Indices are defined to describe the reliability security. The reliability assessment of composite power system consists of adequacy and security evaluations. The adequacy evaluation describes the static performance of the power system based on the power flow calculation, while the security is the ability of the system to withstand disturbances analyzed using the transient analysis. A new reliability evaluation algorithm combining adequacy and security is presented. The validity of the algorithm is verified by the numerical results for a sample system with 4 generators and 11 buses.

针对可靠性安全性评估计算复杂和计算速度慢 ,提出了基于 Monte- Carlo模拟法和暂态能量函数法相结合的评估可靠性安全性评估的方法 ,定义了相应可靠性指标。充裕度评估和安全性评估是发输电合成系统可靠性分析的两个方面 ,充裕度是在静态条件下电力系统满足用户电力和电能量的能力 ,安全性是在动态条件下电力系统经受住突然扰动并不间断地向用户提供电力和电能量的能力。论文提出了将充裕度评估和安全性评估相结合进行可靠性分析的模型、算法和计算步骤 ,并编写了相应程序。算例表明 ,该模型和算法是可行的 ,结果是合理的

A composite power supply combined with capacitor and batteries was introduced. The characteristic of capacitor, i.e. the output with high power density, was applied completely in the device for providing instantaneous large current for load. The energy storage characteristic of battery was also applied in the device to recharge capacitor after discharge. It can provide large pulse current to load for discharge. The working principle of the composite power supply is that when capacitor is charging,...

A composite power supply combined with capacitor and batteries was introduced. The characteristic of capacitor, i.e. the output with high power density, was applied completely in the device for providing instantaneous large current for load. The energy storage characteristic of battery was also applied in the device to recharge capacitor after discharge. It can provide large pulse current to load for discharge. The working principle of the composite power supply is that when capacitor is charging, the voltage U C trends to its final constant value U S exponentially; when capacitor is discharging with load, the voltage U C decays from U 0 by exponential regulation while the current I transits into U 0/R and then decays according to the same exponential regulation. The discharge current and discharge voltage can be adjusted by selecting the appropriate time constant τ, thus large output power can be provided in short moment whereas energy will not be consumed from its own. The composite power supply combined the capacitor with chemical battery, so it has high power density.

介绍了一种将电容器与蓄电池组合成的复合电源 ,该复合电源充分利用电容器具有的高比功率输出特性为负载提供瞬间大电流 ,同时还利用蓄电池的储能特性 ,在电容器放完电后为其充电。它可为负载提供大电流脉冲放电。其原理是电容器充电时 ,电压UC 以指数形式趋近于它的最终恒定值US,电容器对负载放电时 ,电容上电压UC 从U0 按指数规律衰减 ,电流I则从 0跃变到U0 /R后按同一指数规律衰减 ,选择合适的时间常数τ ,就可以调整放电电流的大小和放电电压的高低 ,在短时间内提供较大的输出功率 ,而其本身并不消耗能量。利用电容器这一特性 ,把它和化学电池结合起来 ,组成了具有较高比功率的复合电源。

 
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