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公开(公告)号：KR1020130125588A
公开(公告)日：2013-11-19
申请号：KR1020120049227
申请日：2012-05-09
Applicant: 한국전기연구원
CPC classification number: Y02E60/60
Abstract: The present invention relates to a device for simulated driving of a grid connected system to inspecting the performance of the grid connected system. A wire and wireless communication part transmits and receives data and an operator terminal analyzing the performance of the grid connected system for simulated driving. A control module operates at least one among an active filter inspection mode, an independent driving prevention mode, a low voltage ride through (LVRT) inspection mode of the grid connected system for simulated driving according to a control signal transferred from the operator terminal. A load device includes a load corresponding to the active filter inspection mode, the independent driving prevention mode, the low voltage ride through (LVRT) inspection mode. The control part, in the operation of the LVRT inspection mode, controls the operation of the load device by calculating a parameter value of the load device according to national LVRT standards transferred from the operator terminal. [Reference numerals] (210) Wire/wireless communication part;(221,224) LVRT operation part;(222) Independent driving prevention operation module;(223) Active filter operation module;(225) Independent driving prevention load control device;(226) Active filter load control device;(230) Load device
Abstract translation: 本发明涉及一种用于模拟驱动并网系统以检查并网系统的性能的装置。 有线和无线通信部分发送和接收数据，以及运行终端分析电网连接系统的模拟驾驶性能。 控制模块根据从操作员终端传送的控制信号，操作用于模拟驾驶的电网连接系统的有源滤波器检查模式，独立驾驶防止模式，低电压穿越（LVRT）检查模式中的至少一个。 负载装置包括对应于有源滤波器检查模式，独立驾驶防止模式，低电压穿越（LVRT）检查模式的负载。 控制部分在LVRT检查模式的运行中，通过根据从操作员终端传送的国家LVRT标准计算负载装置的参数值来控制负载装置的运行。 （210）有线/无线通信部;（221,224）LVRT操作部;（222）独立驾驶防止操作模块;（223）有源滤波器操作模块;（225）独立驾驶防止负载控制装置;（226） 有源滤波器负载控制装置;（230）负载装置
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12.发明公开인버터 직류 입력단 커패시터 진단 시스템, 방법, 및 상기 방법을 실행시키기 위한 컴퓨터 판독 가능한 프로그램을 기록한 기록 매체 审中-实审逆变器DC输入级电容器诊断系统，方法和用于执行该方法的记录介质记录计算机可读程序
公开(公告)号：KR1020170059741A
公开(公告)日：2017-05-31
申请号：KR1020150164077
申请日：2015-11-23
Applicant: 한국전기연구원
IPC: G01R31/02 , G01R27/26 , G01R19/165 , G01R19/10
Abstract: 인버터직류입력단커패시터진단시스템은, 전원인가부, 커패시터전압및 시간측정부, 및커패시턴스산출부를포함한다. 전원인가부는인버터로직류전원을인가하고, 커패시터전압및 시간측정부는직류전원에대해인버터와병렬연결된입력커패시터양단의전압및 전압이측정되는동안의시간을측정하며, 커패시턴스산출부는커패시터양단의전압이미리설정된전압값에도달하는동안의시간, 및직류전원에대해인버터및 입력커패시터와직렬연결된입력저항의저항값을이용하여입력커패시터의커패시턴스를산출한다.
Abstract translation: 逆变器DC输入级电容器诊断系统包括功率施加单元，电容器电压和时间测量单元以及电容计算单元。 功率施加单元施加直流功率到所述逆变器，并且电容器电压和时间测量单元测量在此期间，逆变器和在两个并联连接的输入电容器的测得的电压和电压的直流电源和电容计算单元结束跨越该电容器的电压的时间 输入电容器的电容值通过使用达到预设电压值的时间和与逆变器和输入电容器串联的输入电阻器相对于直流电源的电阻值来计算。
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Patent Agency Ranking
公开(公告)号：KR101646170B1
公开(公告)日：2016-08-09
申请号：KR1020140120264
申请日：2014-09-11
Applicant: 한국전기연구원
CPC classification number: Y02E60/60
Abstract: 본발명은계통연계운전및 독립운전이가능한전력시스템을제어하는방법에관한것으로, 상기전력시스템이계통연계모드에서독립운전모드로전환시, 계통전압, 부하전압, 부하전류및 기준전류지령치에기초하여전류기준치를산출하는단계; 상기산출한전류기준치를전류제어기제어를위한기준값으로사용하여 PWM 듀티사이클주기를산출하는단계; 및상기 PWM 듀티사이클주기에기초하여계통부하로공급되는전력의 PWM 신호를제어하는단계를포함하여구성된다.
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公开(公告)号：KR101545139B1
公开(公告)日：2015-08-20
申请号：KR1020120116905
申请日：2012-10-19
Applicant: 한국전기연구원
IPC: H02J3/01
Abstract: 본발명은 LPN(Low Pass Notch) 필터를이용하여전력계통에서의위상을추종하는위상추종시스템에관한것으로, 구체적으로는, 계통전압을검출하여, 상기검출된계통전압을이루는다수의상 중하나이상으로부터주파수성분을검출하는주파수추출부; 상기주파수추출부에서추출된주파수성분을토대로기준신호를도출하는기준신호생성부; 및상기기준신호생성부에서도출한기준신호에대해 LPN(Low Pass Notch) 필터링을수행하여계통전압의위상을추종하는위상추종부를포함하는위상추종시스템에관한것이다.
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公开(公告)号：KR101380380B1
公开(公告)日：2014-04-10
申请号：KR1020120082950
申请日：2012-07-30
Applicant: 한국전기연구원
Abstract: 본 발명은 전력계통에서의 위상추종 방법에 관한 것으로, (a)계통전압을 검출하여, 상기 검출된 계통전압을 이루는 다수의 상에 대해 순차적으로 정상 또는 지락 여부를 판단하는 단계; 및 (b)상기 판단 결과, 상기 검출된 계통전압을 이루는 다수의 상 중 정상상태인 상의 계통전압에 대하여 기본파를 추출하고 계통전압의 위상을 도출하는 단계를 포함한다.
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公开(公告)号：KR101320868B1
公开(公告)日：2013-10-23
申请号：KR1020120027040
申请日：2012-03-16
Applicant: 한국전기연구원
IPC: H02J3/01
CPC classification number: H02J3/01 , H02M1/12 , H03L7/07 , H04B2201/70727
Abstract: PURPOSE: A grid-connected energy storage device using a harmonic wave compensation control device in each degree is provided to improve current quality by compensating for a harmonic wave in each degree. CONSTITUTION: A first fast Fourier transform (FFT) phase follow system (201) estimates a phase for a grid-connected inverter output current. A second FFT phase follow system (230) estimates a phase for current conducted with non-linear load. A first D-Q inverter (202) inverts a d-shaft into a q-shaft in a basic wave and a harmonic wave extracted from the first FFT phase follow system. A compensation control device (205) selectively eliminates the harmonic wave of a grid-connected inverter output current extracted by the first FFT phase follow system. The compensation control device includes a plurality of subtractors (205a, 205b, 205c) which selectively subtract a plurality of harmonic waves in each degree. [Reference numerals] (201,203) FFT-using phase follow system
Abstract translation: 目的：提供一种使用谐波补偿控制装置的并网能量存储装置，以便通过在每个程度上补偿谐波来提高电流质量。 构成：第一快速傅立叶变换（FFT）相位跟随系统（201）估计并网逆变器输出电流的相位。 第二FFT相位跟踪系统（230）估计用非线性负载传导的电流的相位。 第一D-Q变换器（202）将d轴转换成基本波中的q轴和从第一FFT相位跟随系统提取的谐波。 补偿控制装置（205）选择性地消除由第一FFT相位跟踪系统提取的并网逆变器输出电流的谐波。 补偿控制装置包括多个减法器（205a，205b，205c），其以各程度选择性地减去多个谐波。 （参考号）（201,203）FFT使用阶段跟踪系统
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公开(公告)号：KR101296798B1
公开(公告)日：2013-08-14
申请号：KR1020120060319
申请日：2012-06-05
Applicant: 한국전기연구원
IPC: G01R31/42
Abstract: PURPOSE: An inductor testing device for a pulse width modulation (PWM) power transformer is provided to test inductor performance by grasping the property of a device under test. CONSTITUTION: An inductor testing system for a pulse width modulation power transformer a for inductor performance test comprises an inductor testing device (200) and a terminal (300). An inductor testing device combines with an inductor for a test and virtually operates it by applying predetermined power consumption. The inductor testing device detects current data or voltage data flowing in an inductor according to imitation operation. The terminal transmits and receives data from the inductor testing device and deducts a direct current (DC) reiteration property curve based on the current data or the voltage data which is received from the inductor testing device. The current data of the inductor comprises one among a DC current flowing in the inductor, and a DC bias current or a ripple current. [Reference numerals] (241) Signal detection unit; (242) PWM generating unit; (243) AC/DC control unit; (244) Inductor current control unit; (245) Communication unit; (300) Terminal
Abstract translation: 目的：提供用于脉宽调制（PWM）电源变压器的电感测试装置，通过掌握被测器件的性能来测试电感性能。 构成：用于电感器性能测试的脉宽调制电力变压器a的电感测试系统包括电感测试装置（200）和端子（300）。 电感测试装置与用于测试的电感器组合，并通过施加预定的功率消耗来实际操作它。 电感测试装置根据模拟操作来检测在电感器中流动的电流数据或电压数据。 终端从电感测试装置发送和接收数据，并根据从电感测试装置接收的当前数据或电压数据，扣除直流（DC）重复特性曲线。 电感器的当前数据包括在电感器中流动的直流电流与直流偏置电流或纹波电流之间的数据。 （附图标记）（241）信号检测单元; （242）PWM发生单元; （243）AC / DC控制单元; （244）电感电流控制单元; （245）通讯单元; （300）码头
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