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基站电源的日常维护与管理
蓄电池是基站电源系统的重要组成部分，其运行的稳定与否直接关系着通信网络的畅通和安全，因此建立完善的电源维护体系刻不容缓。
目前，基站电源配套的蓄电池大多是先进的阀控式密封铅酸蓄电池，这种电池的每节单体电压一般有２Ｖ、６Ｖ和１２Ｖ三种，在使用时将多节单体串连，组成４８Ｖ的蓄电池组。在对电源系统可靠性要求较高的场合，一般采用两组蓄电池并联运行的方式
-The base station power supply daily maintenance and ma
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On-line voltage stability assessment of power system
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Evaluating Advanced VAR Compensators for
Improving Power System Voltage Stability
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关于DFIG的低压穿越能力的研究。对以后实现低压穿越做一些探索性的工作-Along with the sharp increase in the proportion of wind power supply some areas the impact of Large-scale wind farms for the stability of regional power grid is more significant. The research on low voltage r
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The Static Bifurcation Analysis Of STATCOM
On Power System Voltage Stability
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本系统是以FPGA（EP2C8Q240C8）为控制核心，由压控振荡器、PLL倍频器、高频功率放大器、遥控器及LCD显示模块组成的压控LC振荡器。能实现输出正弦波频率在15MHZ~35MHZ步进可调，其最小步进为5002HZ，频率稳定度为10-5。当输出信号的频率为30MHZ、峰峰值稳定在1V左右时，在+12V单电源工作的情况下，功率放大器能实现在50Ω纯阻性和50Ω+20pf容性负载上输出功率大于20mw。LCD显示模块能实时显示输出信号的峰峰值和频率，精度由于10 。-This system
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The fast control capability of the VSC-HVDC and
the process of area mode oscillations are analyzed. An auxiliary
fuzzy logic controller designed in Matlab for the Voltage Source
Converter based HVDC transmission system, VSC-HVDC, to
improve t
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风电场建模的案例分析。资料中详细分析了风电场建模的方法，并着重考虑了短路电流、LVRT、稳定性分析等内容。- Using an actual wind farm configuration, this paper
compares the effects of modeling detail on power flow
calculations such as those used to determine reactive power
requirements, voltag
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IEEE TRANSACTIONS ON EDUCATION, VOL. 49, NO. 4, NOVEMBER 2006
Saffet Ayasun, Member, IEEE, Chika O. Nwankpa, Senior Member, IEEE, and Harry G. Kwatny, Life Fellow, IEEE
Education and Research on Voltage Stability Toolbox
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Preparation study for voltage stability for a power system with large portion of renewable energy
Eng.Mohammad al-shrida-Preparation study for voltage stability for a power system with large portion of renewable energy
Eng.Mohammad al-shrida
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Voltage Stability in Power system Using STATCOM
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The main objective of this paper is the enhancement of
power system stability by using complex structure of Power
System Stabilizers (PSS) in the voltage regulation loop of
synchronous generators. The PSS uses multiple local and remote input si
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The main objective of this paper is the enhancement of power system stability by using complex structure of Power System Stabilizers (PSS) in the voltage regulation loop of synchronous generators. The PSS uses multiple local and remote input signals.
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鉴于分布式光伏发电井网系统的电压稳定性对现实生话有重要意义.从下程角度给出380/220 V低压
配电网电压失稳的实用判抓.运用I SC 八I>软件构建了一个分布式光伏电源接入0. } kV配电网的3竹点系
统仿真模型.在此基础上分析了负荷增加、光照强度突降、环境温度增大以及负荷母线发生短路故障等扰动对
负荷电压稳定性的影响。仿真结果表明.当负荷电压接近电压稳定限定伯正常运行时.光照强度突降会使负
荷母线电压失去稳定:温度变化对负荷电压的影响甚微:短路故障消除后负荷母线电压
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This paper deals with the design and implementation of
a multilevel voltage source converter based static synchronous
compensator (STATCOM) employing an effective modulation
control technique simulated in a MATLAB Simulink
environment. The ma
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A combination of genetic algorithm and particle swarm optimization for optimal
DG location and sizing in distribution systems
Distributed generation (DG) sources are becoming more prominent in distribution systems due to the
incremental dema
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