查询词典 power function

To overcome the shortcomings of existing algorithms, the distributed parallel reactive power optimization algorithm based on sub-area division of the power systems is proposed according to the distributed and decentralized characteristics of the power system. Here, multi-objective function and soft constraints are modeled using fuzzy sets, and the multi-objective reactive power optimization problem is solved by the direct nonlinear primal-dual interior point algorithm.

针对目前无功电压优化算法存在的不足，根据电力系统分布、分散的特点，提出了基于电网分区的分布式并行无功优化算法，并对其进行了多目标、软约束的模糊化处理和离散控制变量的罚函数处理，利用直接非线性原—对偶内点法寻优求解。

This product include many kinds of measurement,monitoring,warining,diaplay,communication function,it can measure four quadrant reactive whole fundamental wave and time-sharing fundamental waveelectric quantity;can measure forward and reverse of the active and reactive'smaximal demand and time-sharing demand;can measure each kind of power submultiple,active power,reactive power,apparent power,and so on;can measure and record each kind of pressure loss,current loss and

本产品集各种计量、监控、报警、显示、通讯功能于一身，能计量四象限无功总基波电量及分时基波电量；能计量正反向有功和无功总最大需量及分时最大需量；能测量各相功率因数、有功功率、无功功率、视在功率等；能检测并记录各相失压、失流及三相全失压等事件；能实现远程和红外抄表、编程、监测和校准；也是电力负荷管理系统的配套终端产品。

There is mutual contradiction between direction estimation of user's signal and power allocation among all users in the beamforming algorithm. A twice game beamforming algorithm based on game theory is proposed to deal with it. Beamforming game algorithm mathematics model is constructed. During the first game, direction of signal and power allocation are mapped the game theory as "player", which are modeled as the problem of maximin function and obtain direction estimation first. Then during the second game, power allocations of different users are described as a multi-user game. Power updated algorithm is designed. The existence and uniqueness of the Nash equilibrium in the twice game beamforming algorithm based on game theory are proved by mathematics derivation.

摘要针对波束成形算法中，用户的信号方向估计值和用户之间的功率分配存在着相互矛盾，本文提出了一种基于博弈论的二次博弈波束成形算法，构建了波束成形博弈算法数学模型，首先在第一次博弈的时候，将波束成形算法中的信号方向和功率分配映射为博弈论数学模型中的"局中人"，将其建模为函数的极大极小值求解问题，先求解出信号方向；然后在第二次博弈的时候，将不同用户的功率分配过程描述为一个多用户的博弈过程，设计了功率分配更新算法，通过数学推导论证了纳什平衡点的存在性和唯一性。

A function's Fourier transform is derived by integrating the product of the function and a kernel function (an exponential function raised to a negative complex power) over the interval from －∞to +∞.

欲取得一个函数的傅立叶变换，可以在－∞与＋∞的间隔中把该函数与核函数(提升至负复数幂的指数函数)的结果整合起来。

A function's Fourier transform is derive d by integrating the product of the function and a kernel function (an exponential function raised to a negative complex power) over the interval from －∞to +∞.

欲取得一个函数的傅立叶变换，可以在－∞与＋∞的间隔中把该函数与核函数(提升至负复数幂的指数函数)的结果整合起来。

By producing pseudorandom number series, we rectify the power spectrums of normal random inputs in the same shape as power spectrums of simulating signals. Through Laplace transformation, we can acquire the frequency response functions of rectifier. Two simulating examples were presented. The power spectrum curves based on one peak function model were almost coincided with the power spectrum curves of simulating loads shown in the figures. Simulating results of input loads had good accuracy. Creating a simulating method and program of input load in this paper was effective.

本文利用随机过程仿真的一般理论在已知随机载荷的分布特性、均值、方差和功率谱函数以后，实现随机载荷的计算机仿真，即利用仿真技术得到符合已知载荷的分布特性和功率谱特性的随机载荷的时间序列。1 产生伪随机数序列及分布整形采用乘同余法产生伪随机数的递推公式为[2 ] ：yi+1 =λyi ( 1 )式中M =2

According to the history development and basic values of the silent power system ,our will is necessary and inevitable to the usher in of the silent power system of ,but how usher in, how establish, writer will from the origins of the silent power system ,development, present condition our country present stage concrete the state of nation do with plain analysis, conceive to establish the silent power system that it has the Chinese state of the nation characteristic, to rise and throw the function that the brick leads the jade.

根据沉默权制度的历史发展及基本价值，我国对沉默权制度的引进将是必要的和必然的，但如何引进，如何确立，笔者将从沉默权制度的起源、发展、现状和我国现阶段具体国情做以浅显分析，设想确立其具有中国国情特征的沉默权制度，以起抛砖引玉的作用。

In this sense, this paper classifies guilds' specific function according to these two functions and makes theoretic and empirical analyze of the process of function evolving of the guild which produce in the transition system. We unclose that the government absent chooses the executive administrate system upon guilds; locks the function of guilds in the function transition of relevant governmental departments and path of power-relax. The guilds are restricted by the vested-benefit of relevant department, and hence the guilds lack representation and can not provide effective incentives to the member or positive effect to the economical system and industrial development.

在此基础上，本文按照这两种职能对现实中行业协会的各种具体职能作了分类，并集中对转型期有体制内生成的行业协会的职能演化过程进行理论与实证分析，揭示了在目前政府对行业协会采取了一种行政性管制的体制，并将行业协会职能配置完善锁定在政府相关行业管理部门职能转换和放权的路径上，并受到政府有关部门既得利益的牵制，结果是行业协会缺乏行业代表性，无法为行业成员提供有效的选择性激励，没有起到促进市场经济体制完善和行业健康发展作用。

On the basis of analysis on the dynamic frequency after power vacancy,the reason of unideal function of traditional device are dissected: it is set by using assumed load and power vacancy.The changed range of real load power and real power vacancy lead to big error.

在对电力系统出现功率缺额后的动态频率特性进行分析的基础上，剖析了传统低频减载装置动作效果不理想的原因：用假定的负荷和假定的功率缺额整定，由于实际负荷功率和实际的功率缺额变化幅度很大，而造成很大的误差。

Centering on the theme of amalgamation of industrial parks and towns, this article analyzes the two keys: allocation of profit and transformation of government function. Then this paper conducts empirical analysis on Suzhou industrial park, Gaoming cangjiang industrial park and Kunshan industrial park. At the same time the article expounds the pushing power, drawing power, attracting power, tense power and restrictive elements during amalgamation process in detail.

本文紧紧围绕园镇融合这一主题，运用博弈方法对园镇融合中的利益分配和政府职能转变两个最关键的问题进行了剖析，并对苏州工业园、高明沧江工业园、昆山工业园三个工业园进行了实证分析，详细地阐述园镇融合的推力、拉力、引力、张力四个动力机制和制约因素。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。