无功的

The distributed and parallel reactive power optimization algorithm based on sub-area division of the power systems is firstly combined with the multi-agent technology according to its characteristics. The multi-agent system based distributed voltage and reactive power system is proposed in this dissertation.

根据基于电网分区的分布式并行无功优化算法的特点，本文首次将该算法与多Agent技术相结合，提出了基于多Agent技术的分布式无功电压优化系统的设计方案。

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 charac

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。

The supply contracts do not require a cosφ equal to one. The reactive power is also used by the transmission lines owner for controlling the voltages. Reactive component of current adds to The loads current and increases the voltage drops across network impedances.

无功功率的一部分由用户端消耗掉，剩下的成为网络的负载，供应需求中并不要求功率因数角等于1，无功功率同样被传输线路运营者用来控制传输电压。

In high-voltage var compensation field, when switching the capacitor banks by mechanical switch, it is easy to bound when it closes and to restrike when it opens, and the mechanical switch can not be switched frequently. When switching the capacitor banks by electronic switch in series, it needs dynamic and static voltage sharing circuit and synchronous triggering circuit. It leads to complex structure and high cost.

为解决当前高压无功补偿领域采用常规机械开关投切电容器组开关合闸时触点弹跳产生过电压，分闸时易重燃及不可频繁操作，而采用串联固态电子开关需要相应的动、静态均压及同步触发电路导致系统结构复杂且成本较高的问题，提出一种基于新型高压投切开关的高压动态无功补偿装置。

This paper presents the principle of symmetry vector and introduces the design process of d-q vector controller.

通过分析对称分量法变换原理，以及在TSC+TCR混合型静止无功补偿装置中的应用，介绍了采用矢量变换控制的无功补偿装置的设计。

So compensating of nought line current is very important, that needs the Trinomial Four Lines pattern static Var Generator. The applied theory was brought forward two or three tens years ago, but domestic Trinomial Four Lines pattern Static Var Generator has not matured yet.

三相四线制静止无功发生器所用到的电流坐标变换理论虽然提出已有二三十年的时间了，但至今国内三相四线制静止无功发生器产的产品还不是很成熟。

It is introduced that harmonic current in the electric network and harmonic current detecting method based on instantaneous reactive power theory in the paper,and then it presents the current detecting method in the anisomerous mains voltage,aberrance circuit based on instantaneous reactive power theory .

通过对电网谐波和瞬时无功功率理论在谐波检测中应用的分析研究，作者给出了基于瞬时无功功率理论的检测方法在电网电压不对称、存在畸变时的电流检测方法。

The one-cycle control equation and control circuit in three-phase bridge is similar to the three-phase three-wire system,the control equation and control circuit in N-phase half-bridge is mainly set up through analysis to the circuit.

有源电力滤波器是一种可动态地补偿谐波和无功电流的电力电子装置，四桥臂三相四线制APF可用于三相四线系统的谐波和无功电流的补偿。

The genetic algorithm is a kind of self-adapting optimization method based on the mechanics of natural selection and evolution.

本文在总结常用的电力系统无功电压优化方法的基础上，建立了以网损、电压质量和无功潮流分布为目标函数的数学模型。

The synchronous generator is one of the main resources of reactive power in power system operation, the reactive power output of generator can be changed through the adjustment of exciting current to maintain the terminal voltage of generator.

在电力系统的运行中，同步发电机是电力系统的无功功率主要来源之一，通过调节励磁电流可以改变发电机的无功功率输出，维持发电机机端电压。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。