• The combined sections method overcomed the disadvantage of method only considering active or reactive load and improved the accuracy.

    这种组合分段方法克服按照有功分段的缺陷提高了控制准确性。

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  • The methods of using reserve excitation device, transferring reactive load and dropping reactive load are put into service for detecting polarity in Gezhouba Hydropower Plant.

    介绍三种在线校验方法备用励磁调节、无负荷转移无功负荷。这些工业试验方法曾葛洲坝电厂成功使用

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  • Based on equivalent four-terminal networks of the longitudinal ultrasonic transformer, the resonant frequency equation and the amplitude magnification coefficient, with reactive load, are studied.

    负载为纯力抗状况下,利用纵振型变幅等效四端网络,对频率方程放大系数进行了研究。

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  • The report said 60% of wildlife sites were now receiving a critical load of reactive nitrogen.

    报告60%野生生物生境正在接收着大负荷活性氮。

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  • The result indicates that it is really feasible to adopt SVC to supply load dynamic reactive power to Jiangsu power grid for increasing voltage stability.

    结果表明现阶段采用SVC提供江苏电网扰动时负荷动态支持,提高电压稳定性一项可行的措施。

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  • Using data of daily load prediction, theory analysis and calculate of reactive optimal control have been tried.

    运用系统负荷预测数据,尝试性地进行无优化控制的理论分析进行了实例计算

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  • 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.

    并联型有源电力滤波器适用于多种负载条件谐波无功补偿尤其是应用电源电流畸变不平衡条件下。

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  • Due to the problem of reactive power compensation and harmonic pollution becoming serious in mine system, TCR reactive compensation system for load of mine DC elevator was designed.

    由于煤矿系统补偿谐波污染问题日趋严重设计矿井直流提升负载TCR无功补偿系统。

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  • And introduced the simple model direct on reactive power to some load where the reactive power changed rapidly.

    一些变化迅速负荷,则给出直接以无功功率做控制量简单模型

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  • While transmitting the load power, the high-voltage transmission line consumes the active power of its own, and absorbs or outputs the reactive power, which affects the power factor significantly.

    高压输电线路输送负荷功率同时自身也消耗有功功率、吸收输出功率,线路无功会对功率因数产生很大影响

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  • Automatic compensation load reactive power, enhancing the load power factor.

    自动补偿负荷无功功率提高负荷功率因数

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  • The power factor for the railway substation of the electrified railway is low and can not meet the conditions of severe tractive load to reactive compensation requirements.

    针对电气化铁路变电所功率因数不能满足剧烈变化牵引负荷无功补偿要求现状

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  • 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.

    首先,针对传统连续潮流算法计算负荷度时遇到平衡节点发电机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。

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  • The TBC compensates the fundamental reactive power and balances the load connected to the system.

    TBC能补偿基波无功功率平衡连接系统负载

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  • In the same way, we should consider the problem that reactive power surplus and over-voltage during the period of low-water and low load.

    同样在枯水期轻负荷时,我们考虑到无功功率过剩,系统电压偏高问题

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  • With the load growth of distribution system, reactive demand rises in order to increase power factor, voltage quality and transmission efficiency.

    随着配电系统负荷日益增长,无需求也相应增加配电线路广泛采用并联电容器满足无功需求。

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  • 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.

    保证系统无功功率平衡基础辅以调压等措施调整电压使电压偏移保持允许范围内

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  • 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.

    第一章简单介绍了目前电网存在几种问题包括谐波问题、无问题、三相不平衡问题、用电峰过大的问题以及电压异常、断电问题

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  • This changing "reactive" load causes the amp output level to change with frequency and changes in speaker impedance (a dynamic thing that changes as the speakers are driven harder).

    这种变化的“反应负荷导致功放输出水平变化频率变化音箱阻抗动态改变内容作为扬声器驱动更难) 。

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  • With the consideration of the varying load of power system, a complete mathematical representation of dynamic reactive power optimization and its calculation method are presented.

    根据电力系统实际运行负荷不断变化情况,提出了动态优化问题完整数学描述计算方法

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  • The result of the load reactive power planning for a 66 nodes system shows that this method is feasible.

    66节点系统负荷节点优化结果表明方法具有实用性。

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  • This control principle can improve the control of power quality and effectively compensate the harmonic currents at load side, reactive power and negative sequence current.

    控制方法改善系统电能质量调节有效地补偿负荷谐波电流无功功率电流

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  • This method considered the influence of wind speed and load on active power output and reactive power output of wind farms. The processing of the wind farm node reflects its character accurately.

    方法考虑风速负荷变化风电场输出有功功率和无功率影响风电场节点处理准确反映了无功和电压特性

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  • The analysis indicates that large turbine-generator leading phase operation can improve the reactive power load distribution and the quality of power supply effectively.

    试验分析表明机组发电机进运行有效改善电网无潮流分布,提高电网供电质量

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  • When capacitors are used for reactive power compensation under harmonic load, the harmonic current would be seriously amplified, and the system would be taken into probably resonance.

    谐波负载电容器进行补偿时,产生谐波电流严重放大、甚至引起谐振的现象。

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  • When capacitors are used for reactive power compensation under harmonic load, the harmonic current would be seriously amplified, or even the system would be taken probably into resonance.

    谐波负载电容器进行补偿时,产生谐波电流严重放大甚至引起谐振的现象。

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  • Based on these relations, a general control strategy for harmonic elimination, reactive power compensation and asymmetrical load balance can be devised.

    基础上,就可以建立满足各种条件下系统的谐波抑制、无补偿不对称负载平衡衡量化的统一控制策略

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  • Through the single-dynamic load model dynamic reactive power compensation device can change the original system bifurcation point, increase the load limits and improve the system voltage stability.

    通过单机。动态负荷模型添加无功功率动态补偿装置可以改变系统分岔增加负荷极限从而提高了系统电压稳定性。

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  • Through the single-dynamic load model dynamic reactive power compensation device can change the original system bifurcation point, increase the load limits and improve the system voltage stability.

    通过单机。动态负荷模型添加无功功率动态补偿装置可以改变系统分岔增加负荷极限从而提高了系统电压稳定性。

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