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    • 5. 发明授权
    • 풍력발전기의 관성제어 방법
    • 风力发电机惯性控制方法
    • KR101450147B1
    • 2014-10-13
    • KR1020140100386
    • 2014-08-05
    • 전북대학교산학협력단
    • 강용철이진식김진호
    • F03D7/00G05F1/67H02J3/24H02J3/38
    • F03D7/0284F03D9/255F05B2270/337H02J3/1885H02J3/24H02J3/386Y02E10/723Y02E10/763Y02E40/32
    • The present invention relates to an inertial control method of a wind power generator and, more specifically, to an inertial control method of a wind power generator comprising the steps of obtaining information on a frequency of a power grid; calculating time varying droop coefficients if the frequency information has already decreased below a set range; and controlling the wind power generator by using the calculated time varying droop coefficients, wherein the step of calculating the time varying droop coefficients comprises a step of collecting information on a rotor speed which fluctuates according to the inertia control in real time and a step of calculating the time varying droop coefficient by using the collected information on the rotor speed.
    • 本发明涉及一种风力发电机的惯性控制方法,更具体地说,涉及一种风力发电机的惯性控制方法,包括以下步骤:获取有关电网频率的信息; 如果频率信息已经降低到设定范围以下,则计算时变下垂系数; 以及通过使用所计算出的时变下降系数来控制风力发电机,其中计算时变下垂系数的步骤包括以下步骤:根据实时的惯性控制波动的转子速度收集信息,以及计算步骤 通过使用所收集的关于转子速度的信息来确定时变下垂系数。
    • 7. 发明授权
    • 풍력발전단지의 관성 제어 방법
    • 风力涡轮机的惯性控制方法
    • KR101318124B1
    • 2013-10-16
    • KR1020130072685
    • 2013-06-24
    • 전북대학교산학협력단
    • 강용철김두연이진식김연희김진호
    • G05F1/67H02J3/24H02J3/38
    • F03D7/00F03D7/0284F03D7/046F05B2270/337H02J3/386H02P2101/15Y02E10/723Y02E10/763
    • PURPOSE: A method of controlling wind power generator is provided to recover the frequency quickly when the electric power network falls into a problem such as the generator breaks down or load increases and to supply more electricity to the power network. CONSTITUTION: An inertial control method for wind power generator has four different steps for controlling the generator. The first step includes acquiring the frequency information calculated by using the voltage of the generator or the voltage which has been received from the power network of the generator. The next step is to receive the velocity information of the rotator of the generator, and the third step is to calculate the kinetic energy of the generator by utilizing the velocity information of the rotator. Last two steps include calculating individual droop coefficients of the generator and controlling the generator by using the calculated droop coefficients. [Reference numerals] (AA) Obtain frequency information; (BB) Receive velocity information of rotator; (CC) Calculate the kinetic energy; (DD) Calculate individual droop coefficients; (EE) Control wind generator
    • 目的:提供一种控制风力发电机的方法,以便在电力网络出现发电机故障或负载增加等问题,并向电力网供电时,快速恢复频率。 构成:风力发电机的惯性控制方法有四个不同的步骤来控制发电机。 第一步包括获取通过使用发电机的电压或已经从发电机的电网接收的电压而计算的频率信息。 接下来的步骤是接收发电机转子的速度信息,第三步是利用转子的速度信息计算发电机的动能。 最后两个步骤包括计算发电机的各个下垂系数,并使用计算的下垂系数来控制发电机。 (附图标记)(AA)获取频率信息; (BB)接收转子的速度信息; (CC)计算动能; (DD)计算单个下垂系数; (EE)控制风力发电机
    • 9. 发明公开
    • 고효율 역률 개선용 단일단 AC/DC 컨버터
    • 用于功率因数校正的高效率单级AC / DC转换器
    • KR1020160011497A
    • 2016-02-01
    • KR1020140092694
    • 2014-07-22
    • 전북대학교산학협력단
    • 최우영강용철
    • H02M1/42H02M7/155G05F1/70H02H7/12
    • Y02B70/126H02M1/4208G05F1/70H02H7/1213H02M1/42H02M7/155H02M7/1557Y02B70/12Y02B70/1441
    • 고효율역률개선용단일단 AC/DC 컨버터가개시된다. 본발명의일 실시예에의하면, 교류입력전압의역률을개선하고직류로변화하여부하에공급하는 AC/DC 컨버터에있어서, 교류입력전압을정류하고역률을개선하는역률개선용회로; 및변압기및 공진커패시터가구비되고, 상기역률개선용회로부로부터출력되는직류전압을소정의다른전압으로변환하여출력부하에공급하는 DC/DC 컨버터;를포함하고, 상기변압기는, 일단이공진커패시터와직렬연결되고, 타단이 1차측권선과연결되는누설인덕터;를포함하는고효율역률개선용단일단 AC/DC 컨버터가제공된다. 이에따라, 정류용브리지다이오드의동작과역률개선용회로의동작을동시에처리함과아울러교류입력전압을일정직류전압으로변환시킬때 발생하는스위칭손실을감소시킬수 있다.
    • 公开了一种用于提高功率因数的高效率单级AC / DC转换器。 根据本发明的一个实施例,AC / DC转换器提高交流输入电压的功率因数并将电压改变为直流电压以向负载提供直流电压,包括:功率因数改善电路, 交流输入电压,提高功率因数; 以及包括变压器和谐振电容器的DC / DC转换器,并且将从功率因数提高电路输出的DC电压转换为预定的不同电压以将电压提供给输出负载。 变压器包括漏电感器,其一端与谐振电容器串联连接,另一端连接到初级线圈。 因此,由于功率因数提高电路的动作和整流用的二极管的动作同时被处理,同时在将交流输入电压转换为规定的直流电压时产生的开关损耗减小。