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Reactive power compensation device, reactive power compensation system, and reactive power compensation method

机译：无功补偿装置，无功补偿系统及无功补偿方法

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摘要

PPROBLEM TO BE SOLVED: To restrain power fluctuation generated on a consumer side by a power supply side. PSOLUTION: This reactive power compensation system includes reactive power extracting means 80 which extracts a reactive current element from load current IL, reverse phase current extracting means 85 which extracts a reverse phase current element, amplitude phase computing means 60 which computes frequency characteristics for load admittance from the load current IL and linkage point voltage Vs, frequency specifying means 70 which specifies specific frequency based on amplitude characteristics and phase characteristics of the load admittance, a BEF 90 which removes the frequency element of the specific frequency, a BEF 95 which removes the frequency element of the specific element, and a power converter 20 which adds and outputs a compensation current formed from a positive phase current for canceling an output signal of the BEF 90 and a reverse phase current for canceling the output signal of the BEF 95 to the load current IL. PCOPYRIGHT: (C)2008,JPO&INPIT

机译：

要解决的问题：抑制电源侧在用户侧产生的电源波动。解决方案：该无功功率补偿系统包括：无功功率提取装置80，其从负载电流IL中提取无功电流元件;反相电流提取装置85，其提取反相电流元件;以及幅度相位计算装置60，其计算频率特性。为了从负载电流IL和连接点电压Vs获得负载导纳，频率指定装置70基于负载导纳的幅度特性和相位特性来指定特定频率，BEF 90去除特定频率的频率元素，BEF 95功率变换器20去除了特定元素的频率元素，功率变换器20相加并输出补偿电流，该补偿电流由用于消除BEF的输出信号的正相电流和用于消除BEF的输出信号的反相电流形成。 95至负载电流IL。

版权：（C）2008，日本特许厅＆INPIT 展开▼

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公开/公告号JP4523950B2

专利类型
公开/公告日2010-08-11

原文格式PDF
申请/专利权人株式会社日立製作所;
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申请/专利号JP20070035144
发明设计人清藤康弘;柏崎博;相原孝志;伊藤智道;古関庄一郎;江口吉雄;田中誠二;加藤哲也;今津康博;
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申请日2007-02-15
分类号H02J3/18;G05F1/70;
国家 JP
入库时间 2022-08-21 19:01:45

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