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To provide high power quality at the Point of Common Coupling (PCC) of power distribution systems, elimination of
the harmonic is indispensably necessary. Most
have defined the power quality and given some harmonic limits. Different methods are
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基于蒙特卡洛方法的主动声纳信号检测性能分析.主动声纳信号检测性能的分析上,目前在计算机仿真中一般假定混响包络的统计特性符合瑞利分布模型。基于此模型,已经有了较完善的理论。然而,在现代高分辨声纳系统中,混响包络的统计特性并不符合瑞利分布模型。此时在接收机工作特性分析时存在大量繁琐的公式推导。因此该文采用蒙特卡洛(M onte Carlo)统计试验方法,实现对瑞利分布混响背景下的主动声纳信号检测性能分析。结合对接收机工作特性曲线的仿真,得出了检测概率的理论值和仿真结果的误差曲线。误差曲线表明,蒙特卡
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This paper presents a fully-digital-controlled shunt
active filter for harmonic termination of a power distribution
system. The main purpose of the active filter based on voltage
detection is not to compensate for current harmonics but to damp
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Passive filter and active filter are two ahnative strategi-
es to suppress harmonics in the electrical distribution system. Pas-
sive filter is dc and efficient but it may cause the resonimce
problem. Active film has become a mature tecblogy
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有源噪声控制(ANC)主要基于LMS算法,但在处理宽带噪声信号和低信噪比情况下,效果不好.影响控制效果的主要原因是输入信号的自相关分布.而小波变换具有消除信号自相关的作用.因此将小波变换引入有源噪声控制(ANC)是解决问题的一种办法-Active noise control (ANC) is mainly based on the LMS algorithm, but ineffective in dealing with the situation of the broadband noise
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This paper describes different power quality
problems in distribution systems and their solutions with
power electronics based equipment. Shunt, hybrid and
series active power filters are described showing their
compensation characteristics a
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An Active Rectifier must be installed in a 60Hz 208V three-phase distribution system in
order to provide a high power quality 600V DC supply for a 150kW motor drive. The
active rectifier VSC and control is an American Superconductor (AMSC) PM-100
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Paper Abstract – An adaptive control of Distributed Generation (DG)
to provide predictable active power output at the primary
distribution substation is described. Often, distribution networks
accommodate renewable energy different energy sourc
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This paper is focused on a shunt active filter based on detection of harmonic voltages at the point of installation. The objective of the active filter is to attenuate harmonic propagation resulting from series/parallel resonance between capacitors f
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微电网经济优化运行.PDF 含储能的主动配电网优化运行研究 含多微网的主动配电系统综合优化运行行为分析与建模 基于遗传算法的热电联产型微网经济运行优化-Micro grid economic optimization operation. PDF with energy storage in active distribution network optimal operation with multi microgrid active distribution system integrate
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本文所做主要工作有:
1)简要介绍了主动配电网的基念。
2)研究了主动配电网中各个主要组成部分的模型,包括变型、输电型、负型和DG模型,并根据主动点,建立了网评价指标体系。
3)分析并搭建了主动配电网基本模型,并对主动配电网的4项电能质量指标进行了分析,包括谐变、电差、三相衡和电压闪变。
4)分析了分布式电源接入主动配电网后的电能质量问题,提出了主动配电网电能质新指方法,通过电量变化量指统指标来评估主动配质量,并对算例进行了分究,表明了该方效性。(The main work of thi
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本文建立了光伏、风机等分布式电源的仿真模型,研究了主动配电网的不同
运行方式,构造了控制系统的工况,包括正常控制状态和紧急控制状态,并确定
了在正常控制状态下实行不同时间尺度下的电压优化手段和紧急控制状态下进行
即时控制的思想。在此基础上,提出了一种基于多代理系统的主动配电网分布式
电压协同控制方法,通过控制有载调压变压器、无功补偿设备、分布式电源出力
等,在可能出现多馈线不同功率的系统中,实现防止电压越限、最小化电压偏移
和DG有功缩减等目标。(Distributed voltag
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