电力系统的无功补偿与无功平衡是保证电压质量的基本条件。
Reactive compensation and reactive equilibrium of electrical system are the basic conditions for guaranteeing voltage quality.
变电站电压、无功控制已成为保证电压质量和无功平衡，提高电力系统可靠性和经济性必不可少的措施。
The voltage and inactive power control of substations have become necessary measures to ensure the voltage quality and inactive power balance and improve the reliability and economy of power system.
给出了采用链式STATCOM实现平衡化补偿的主电路结构及电压-无功综合控制方法。
Main circuit configuration and integrated voltage-reactive power control scheme for balancing compensation with cascade inverters based STATCOM is proposed.
电力系统中无功的分层平衡，有利于减少输电路径上无功的流动，降低电网传输损耗。
In the power system of reactive power balance layer, to reduce the flow path, reduce the reactive power transmission loss.
从能量平衡的基本思想出发，提出单相电容电动机的一种有功、无功双回路模型及其实用分析方法。
Based on the principle of energy balance, a model and an analysis method of active and reactive loops for capacitor motor analysis was presented.
在保证系统中无功功率平衡的基础上，辅以有载调压等措施调整电压，才可使电压的偏移保持在允许范围内。
Based on guaranteeing reactive power equilibrium of the system, only the voltage regulation assisted by on - load voltage regulation can make the deviation of voltage keep in allowable scope.
无功功率是电力系统的一个重要运行参数，它的平衡程度直接影响电网电压的稳定程度。
Wattles power is an important parameter in operation of electric power system. Its balancing level directly affects the stability of the voltage of power grid.
提出了采用单相statcom实现平衡化补偿的两种主电路结构及电压无功综合控制方法。
Two kinds of main circuit configuration and integrative voltage reactive power control scheme for balancing compensation with single phase STATCOM are proposed.
TBC能补偿基波无功功率，平衡连接到系统的负载。
The TBC compensates the fundamental reactive power and balances the load connected to the system.
本文利用功率平衡器的原理提出了一种新的无功补偿方法。
This paper proposes a new approach to reactive power compensation according to the principle of power balancer.
本文研究和给出电气量测量交流采样的算法，着重研究三相不平衡及波形畸变工况下无功功率的测量算法。
This paper introduces the AC sampling arithmetic and emphasizes the study of measurement arithmetic under the unbalanced and distorted condition.
变电站无功功率的平衡与配置已经成为现代电力系统中十分重视的研究课题。
The reactive power balance and disposition of substations are very important for power systems.
详细介绍了两个无功就地平衡降损实例，并对降损效果进行了分析；
Two examples of local reactive power balancing are introduced in detail, and the effects of reduced loss are analyzed.
在此基础上，就可以建立满足各种条件下系统的谐波抑制、无功补偿及不对称负载平衡衡量化的统一控制策略。
Based on these relations, a general control strategy for harmonic elimination, reactive power compensation and asymmetrical load balance can be devised.
无功补偿的难点在于如何补偿三相不平衡以及如何有效地滤除低次谐波，尤其是2次谐波。
How to deal with three-phase unbalance compensation and how to filter the low-order harmonics, especially the2nd-order, are the two difficulties for reactive power compensation.
在电压正常波动范围内实现无功基本平衡。
In the normal fluctuation range of voltage it could realize reactive power balance basically.
电力系统无功功率补偿不足会引起功率因数下降，而三相功率不平衡则会影响到用电设备的安全。
The power factor of power system will be decreased by under-compensation of reactive power and it is harmful for the devices of customers while the power in the three phases are unbalanced.
静止无功补偿器(SVC)在补偿负荷无功的同时，还具备补偿三相负荷不平衡的能力，其关键在于SVC所采取的控制策略。
The SVC can not only compensates the reactive power, but also dish the negative sequence current produced by the unbalance loads, which mostly depend on the control scheme.
本文通过分析无功功率平衡和电压水平的关系，指出了电力系统电压调整的复杂性，然后讨论了变电站电压无功控制的原理，给出了控制的数学模型。
In this paper the complexity of voltage control in power system is discussed through the analysis of relationship between power system balanced states of voltage and reactive power.
并联型有源电力滤波器适用于多种负载条件下的谐波和无功补偿，尤其是能应用于电源电流畸变和不平衡条件下。
The SAPF prototype can compensate harmonics and reactive well under varies load conditions, especially in the case of a distorted or unbalanced current of power supply.
当无功功率不平衡时，将会导致系统电压降低、电能质量下降、功率因数降低、线损增加等问题。
When reactive power is unbalance, it will cause some problems, such as lower voltage, worsen voltage quality, lower power factor and increase line loss.
当前低压电网无功不平衡的现象日趋严重，这不仅影响了用电设备的运行效率，而且还影响其安全运行。
At present, the reactive power imbalance of low-voltage power network is more and more serious. It not only affects the operating efficiency of equipments, but also the safe operation.
无功补偿是保持电力系统无功功率平衡、降低损耗、提高供电质量的一种重要手段。
Reactive compensation is an important way which maintains the reactive power balance of the electric power system, reduces the loss and increases supply quality.
首先，针对传统连续潮流算法在计算负荷裕度时遇到的平衡节点发电机无功约束问题进行了研究，提出了平衡节点无功约束的连续潮流负荷裕度算法。
Firstly, the problem of reactive power constrains of generator at slack bus is studied, and a load margin algorithm of continuation power flow of reactive power constrain at slack bus is proposed.
第一章简单介绍了目前电网存在的几种问题，包括谐波问题、无功问题、三相不平衡问题、用电峰谷差过大的问题以及电压异常、断电问题等；
Several issues of power quality are presented, including harmonics, reactive power, three phase unbalance, large difference between peak load and vale load, voltage disturbance and so on.
提出了按照电压等级进行分层平衡的原则，对系统的无功功率进行调整，取得了较好得调整效果。
The method to adjust the reactive power to balance judging by the voltage level has been proposed and obtaining a well effect when used it in the actual project.
讨论了采用阻抗匹配平衡变压器的牵引变电所的无功计量方法。
The measurement method of reactive power in traction substation, which main transformer is impedance-matching balance one, is discussed.
现代电力系统的规模越来越大，无功的平衡和电压的稳定非常重要。
The scale of modern power system becomes larger and larger, the balance of reactive power and voltage stabilize is very important.
本文针对三相不平衡负载特点，介绍了无功功率补偿原理和单板机控制系统。
In accordance with the feature of three phase unbalanced loads, this article describes the correction principle of reactive power and the control system of single board computer.
本文针对三相不平衡负载特点，介绍了无功功率补偿原理和单板机控制系统。
In accordance with the feature of three phase unbalanced loads, this article describes the correction principle of reactive power and the control system of single board computer.
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