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41.发明公开
公开(公告)号：KR1020080034527A
公开(公告)日：2008-04-22
申请号：KR1020060100553
申请日：2006-10-17
Applicant: 한국전기연구원
IPC: H02J3/38
Abstract: A method of simulating a three-phase voltage and a three-phase current from one-phase power and an apparatus for controlling a power converter in a one-phase distribution generation system are provided to overcome a limitation of a frequency response of an alternating current control system and a difficulty in independent control of effective power or reactive power. A method of simulating a three-phase voltage(92) and a three-phase current(93) from one-phase power includes the steps of: (a) sampling a current(91) outputted from the one-phase power and a voltage(90) of a power system electrically connected to the one-phase power; and (b) extracting three-phase voltage component values and current component values based on sampling voltage values and current values sampled in the step(a). The step(b) includes the steps of: (b-1) storing the sampling voltage values and current values detected in the step (a) for more than one cycle of the power-based voltage; and (b-2) selecting voltage values and current values earlier than and later than the voltage by 1/3 cycle from the stored voltage values and current values. Two look-up tables(97,98) for the current and the voltage are applied so as to simulate three phases from one-phase input values.
Abstract translation: 提供了从单相电源模拟三相电压和三相电流的方法以及用于控制单相分配发电系统中的功率变换器的装置，以克服交流电的频率响应的限制 控制系统和独立控制有效功率或无功功率的难度。 从单相功率模拟三相电压（92）和三相电流（93）的方法包括以下步骤：（a）对从一相电力输出的电流（91）和电压 （90），电连接到所述单相电力; 和（b）基于在步骤（a）中采样的采样电压值和电流值提取三相电压分量值和电流分量值。 步骤（b）包括以下步骤：（b-1）存储步骤（a）中检测到的取样电压值和电流值，用于多于一个电源电压的周期; 和（b-2）从存储的电压值和电流值中选择比电压早于或晚于电压1/3周期的电压值和电流值。 施加用于电流和电压的两个查找表（97,98），以便从单相输入值模拟三相。
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公开(公告)号：KR100816531B1
公开(公告)日：2008-03-27
申请号：KR1020060064657
申请日：2006-07-11
Applicant: 한국전기연구원
Abstract: 본 발명은 계통연계형 태양광 발전시스템에 관한 것으로서, 전력미거래 수용가에 태양광 발전시스템을 설치하는 경우에 적정 설치용량을 산정함으로써, 태양광 발전시스템이 기존 상용전력계통과 연계 구성하여 자가용 수용가에 원활한 전력을 공급할 수 있는 태양광 발전시스템의 적정 설치용량을 산정하는데 그 목적이 있다.
이러한 특징적인 목적을 달성하기 위한 본 발명은, (a) 수용가의 전체 전력사용량을 확인하는 단계; (b) 전체 전력사용량에 따른 최소 및 최대부하를 비교·분석하는 단계; (c) 태양광 발전전력보다 큰 값인지를 판단하는 단계; (d) 상기 제 (c) 단계의 판단결과, 상기 최소부하가 상기 태양광 발전전력보다 큰 값인 경우에 적정 설치용량을 선정하는 단계; 및 (e) 상기 제 (c) 단계의 판단결과, 상기 최소부하가 상기 태양광 발전전력보다 작은 값인 경우에 상기 태양광 발전전력이 역송전되지 않도록 방지하는 단계; 로 구성된다.
태양전지, 태양광 발전시스템, 역송전, 상용전력계통, 적정 설치용량-
公开(公告)号：KR1020080006028A
公开(公告)日：2008-01-16
申请号：KR1020060064657
申请日：2006-07-11
Applicant: 한국전기연구원
Abstract: A method for computing an optimal installation capacity of a solar cell generation system is provided to enable the solar cell generation system to supply electric power to a self-generation house smoothly in connection with a usual commercial power system by computing the optimal installation capacity when the solar cell generation system is installed to the self-generation house. Total electric power usage of the self-generation house is checked(S2). Minimum and maximum load according to the total electric power usage is compared and analyzed(S6). It is checked whether or not the minimum load is bigger than the electric power generated from the solar cell generation system(S10). The optimal installation capacity is computed when the minimum load is bigger than the electric power generated from the generation system(S12). Inverse power transmission of the electric power generated from the solar cell generation system is prevented when the minimum load is smaller than the electric power generated from the generation system(S14).
Abstract translation: 提供了一种用于计算太阳能电池发电系统的最佳安装容量的方法，以使得太阳能电池发电系统能够通过计算最佳的安装能力，通过计算最佳的安装容量来平稳地向自发电屋提供电力 太阳能电池发电系统安装在自发电厂房屋内。 检查自发房屋的总用电量（S2）。 对总用电量的最小和最大负载进行比较和分析（S6）。 检查最小负载是否大于从太阳能电池发电系统产生的电力（S10）。 当最小负载大于从发电系统产生的电力时，计算最佳安装容量（S12）。 当最小负载小于从发电系统产生的电力时，防止从太阳能电池发电系统产生的电力的逆电传输（S14）。
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公开(公告)号：KR100794195B1
公开(公告)日：2008-01-11
申请号：KR1020060067831
申请日：2006-07-20
Applicant: 한국전기연구원
CPC classification number: H02S50/00 , H02S40/32 , H02S40/38 , Y02E10/563
Abstract: A system for optimizing a solar cell generating system and a control method thereof are provided to effectively install and manage the solar cell generating system by determining an installation scheme of the solar cell generating system according to a condition that a power supply company prepares or do not prepare a power line. A system for optimizing a solar cell generating system includes an installation type selecting unit(100), a relay capacity calculating unit(200), a stand-alone capacity calculating unit(300), an orientation angle calculator unit(400), a database unit(500), and a controlling unit(600). The installation type selecting unit determines an installation scheme from a stand-alone type and a relay type based on an existence of a power line from a power supply company. The relay capacity calculating unit calculates capacities of the solar cell generating system and a solar cell module. The stand-alone capacity calculating unit calculates an overall load applied on a coverage of the solar cell generating system. The orientation angle calculator unit calculates a maximum output value of the solar cell generating system according to the calculated result from the calculating units.
Abstract translation: 提供一种用于优化太阳能电池产生系统的系统及其控制方法，以通过根据供电公司准备或不做的条件确定太阳能电池产生系统的安装方案来有效地安装和管理太阳能电池产生系统 准备一条电源线。 一种用于优化太阳能电池产生系统的系统，包括安装型选择单元（100），中继容量计算单元（200），独立容量计算单元（300），定向角计算单元（400），数据库 单元（500）和控制单元（600）。 安装型选择单元基于来自电力供应公司的电力线路的存在，从独立型和继电器型确定安装方案。 继电器容量计算单元计算太阳能电池产生系统和太阳能电池模块的容量。 独立容量计算单元计算施加在太阳能电池产生系统的覆盖范围上的总负载。 取向角计算部根据计算单位的计算结果，算出太阳能电池生成系统的最大输出值。
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公开(公告)号：KR1020080001828A
公开(公告)日：2008-01-04
申请号：KR1020060060198
申请日：2006-06-30
Applicant: 한국전기연구원
IPC: H02J3/38
CPC classification number: Y02E10/563
Abstract: A hybrid distributed generation system and a control method therefor are provided to stably supply power to an electrical apparatus by separating a diesel generation system from a regeneration energy system. A first distributed power portion(110) converts DC power from a wind generator(wt) and a solar cell(pv) to a maximum power. An inverter unit(120) converts the DC power which is supplied from a DC common line from the first distributed power portion, to an AC portion. A second distributed power portion(130) includes a diesel engine and a driving synchronous generator. A unified controller(140) is coupled with the first and second distributed power portions and the inverter unit, and controls the components. The AC power from the inverter unit and the output power from the second distributed power portion are supplied to an AC common line and delivered to a load(L).
Abstract translation: 提供了一种混合分布式发电系统及其控制方法，用于通过将柴油发电系统与再生能量系统分离来稳定地向电气设备供电。 第一分布式动力部分（110）将来自风力发电机（wt）和太阳能电池（pv）的DC功率转换为最大功率。 逆变器单元（120）将从第一分配功率部分的直流公共线提供的直流电力转换为交流部分。 第二分配动力部分（130）包括柴油发动机和驱动同步发电机。 统一控制器（140）与第一和第二分配电力部分和逆变器单元耦合，并且控制组件。 来自逆变器单元的交流电力和来自第二分布式电力部分的输出功率被提供给AC公共线并被传送到负载（L）。
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Patent Agency Ranking
公开(公告)号：KR100785278B1
公开(公告)日：2007-12-13
申请号：KR1020060109194
申请日：2006-11-07
Applicant: 한국전기연구원
IPC: H02P9/00
CPC classification number: H02P9/04 , H02P9/30 , H02P2103/20 , Y02E10/723 , Y02E40/32
Abstract: A method for diagnosing a permanent magnet synchronous generator for micro-turbine system and a diagnosing apparatus using the same are provided to generate an operation stop signal by detecting rapidly an abnormal state of the permanent magnet synchronous generator. A detecting process is performed to voltage and current outputted from a synchronous generator. A first calculating process is performed to calculate an operating frequency and an effective value of and a maximum value each phase voltage(210) or/and phase current(211) on the basis of the detected voltage and current. A second calculating process is performed to calculate a predicted effective value of a terminal voltage on the basis of the operating frequency, a winding resistance of the synchronous generator, and the detected current. A determining process is performed to determine an abnormal state of the synchronous generator by comparing the effective value and the maximum value of the phase voltage or/and the phase current and the predicted value of the voltage with the effective value of the detected voltage.
Abstract translation: 提供了用于诊断用于微型涡轮机系统的永磁同步发电机的方法和使用其的诊断装置，以通过快速检测永磁同步发电机的异常状态来产生操作停止信号。 对从同步发电机输出的电压和电流进行检测处理。 执行第一计算处理，以基于检测到的电压和电流来计算每相电压（210）或/和相电流（211）的工作频率和有效值以及最大值。 执行第二计算处理，以基于工作频率，同步发电机的绕组电阻和检测电流来计算终端电压的预测有效值。 执行确定处理以通过将相电压的有效值和最大值与/或相电流的最大值和电压的预测值与检测电压的有效值进行比较来确定同步发电机的异常状态。
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公开(公告)号：KR100682034B1
公开(公告)日：2007-02-12
申请号：KR1020050126192
申请日：2005-12-20
Applicant: 한국전기연구원
IPC: B60L11/18
Abstract: An automatic voltage regulator having a battery charging function is provided to reduce a manufacturing cost and improve the degree of freedom in a system configuration by performing modularization of parts of an integrated device. An automatic voltage regulator having a battery charging function includes an automatic voltage regulator(410), a battery charging unit(420), and a control unit(430). The automatic voltage regulator(410) receives and converts AC power from a predetermined generator into DC power. The automatic voltage regulator(410) provides the DC power to a field winding, and maintains an output voltage of the generator uniformly. The battery charging unit(420) receives, rectifies and converts the AC power from the generator into the DC power. The battery charging unit(420) drops a voltage of the DC power and applies the dropped voltage to a predetermined battery. The control unit(430) detects the voltages of the generator and the battery at the same time. The control unit(430) applies and controls an output signal generated through an internal calculation to the automatic voltage regulator(410) and the battery charging unit(420).
Abstract translation: 提供具有电池充电功能的自动电压调节器以通过执行集成装置的部件的模块化来降低制造成本并且提高系统配置的自由度。 具有电池充电功能的自动电压调节器包括自动电压调节器（410），电池充电单元（420）和控制单元（430）。 自动电压调节器（410）接收来自预定发电机的AC电力并将其转换成DC电力。 自动电压调节器（410）将直流电力提供给励磁绕组，并且均匀地维持发电机的输出电压。 电池充电单元（420）接收，整流并将来自发电机的AC电力转换成DC电力。 电池充电单元（420）降低DC电力的电压并将降低的电压施加到预定电池。 控制单元（430）同时检测发电机和电池的电压。 控制单元（430）将通过内部计算生成的输出信号施加并控制到自动电压调节器（410）和电池充电单元（420）。
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公开(公告)号：KR1020170110299A
公开(公告)日：2017-10-11
申请号：KR1020160034498
申请日：2016-03-23
Applicant: 한국전기연구원
CPC classification number: Y02E10/723
Abstract: 본발명은풍력터빈의피치제어시스템에관한것으로서, 바람에의하여회전할수 있는블레이드와, 상기블레이드에연결되어상기블레이드의회전동력을전달받아회전하는회전자를포함하는풍력터빈의피치제어시스템에있어서, 상기회전자의회전속도를감지하는회전속도감지부와, 감지된상기회전자의회전속도와기설정된정격회전속도간의오차및 상기오차의변화량에기초한제어신호를생성하되, 적분이득에기초하여결정된제1변수와비례이득에기초하여결정된제2변수가상기오차및 상기오차의변화량각각에대응되는변수로적용되도록하는피치제어부와, 상기제어신호에따라상기블레이드의피치각을조절하여상기회전자를구동하는피치구동부를포함하는것을특징으로한다. 이에따라, 이산 PI 제어기를사용함에있어서이산 PI 제어기와의동치관계를이용하여이산퍼지 PI 제어기의초기파라미터를선정하였고, 이과정에서이산퍼지 PI 제어기의파라미터조정에필요한노력을줄일수 있다. 초기파라미터로구성된이산퍼지 PI 제어기는이산 PI 제어기와동등한성능을보이고, 여기서파라미터를수정하면종래의이산 PI 제어기보다우수한성능을나타내는효과가있다.
Abstract translation: 本发明涉及一种用于风力涡轮机，包括桨距控制系统涉及风力涡轮机的桨距控制系统，具有叶片，可通过风，其被连接到所述刀片切割旋转通过接收叶片的转动能旋转旋转， 控制单元，其基于检测到的转子的转速和预定的额定转速之间的误差以及误差的变化量来产生控制信号， 和所述第二变量的侘例的基础上的增益，对要被施加到对应于误差和每个误差的变化量的可变俯仰控制部件确定的，用于驱动的间距，通过控制响应于所述控制信号的叶片的桨距角切割的旋转 和一个驱动单元。 Yiettara，它被选定为与在离散的PI控制器中的离散的PI控制器来使用一个等价关系的离散模糊PI控制器的初始参数，在此过程中可以减少以调整离散模糊PI控制器的参数所需的工作量。 由初始参数组成的离散模糊PI控制器表现出与离散PI控制器等效的性能，并且这里参数的修改具有比传统离散PI控制器更优越的性能。
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公开(公告)号：KR1020150076356A
公开(公告)日：2015-07-07
申请号：KR1020130164055
申请日：2013-12-26
Applicant: 한국전기연구원
CPC classification number: Y02E10/723 , F03D7/04 , G05B17/02
Abstract: 본발명에의한계통연계인버터를이용하여풍력발전시스템을모의하기위한장치및 그방법이개시된다. 본발명에따른풍력발전시스템을모의하기위한장치는입력받은풍력발전기의기 설정된주요설정정보, 풍속정보, 풍력발전시스템의운전상태를기반으로계통출력전력정보를생성하는풍력발전모의모델; 생성된상기계통출력전력정보를제공받아그 제공받은계통출력전력정보를기반으로전력계통에계통출력전력이발전될수 있도록제어하는출력제어기; 및상기제어에따라전력계통에계통출력전력을발전시키는계통연계인버터를포함한다.
Abstract translation: 本发明提供了一种用于模拟使用并网逆变器的风力发电系统的装置及其方法。 根据本发明的用于模拟风力发电系统的装置包括：风力发电模拟模型，用于基于风力发电机的输入预设主设定信息，风速信息和 风力发电系统状态; 输出控制器，用于接收关于电力输出的所生成的信息，并且基于所提供的关于输出到电网的功率的信息来控制逆变器能够将功率输出到电网; 以及并网逆变器，用于根据控制向电力网发电。
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公开(公告)号：KR1020150075175A
公开(公告)日：2015-07-03
申请号：KR1020130162669
申请日：2013-12-24
Applicant: 한국전기연구원
CPC classification number: Y02E60/13 , H02J7/007 , H01G11/14 , H02J2007/0067
Abstract: 본발명에의한가중치함수를이용하여 EDLC의출력을제어하기위한장치및 그방법이개시된다. 본발명에따른가중치함수를이용하여 EDLC의출력을제어하기위한장치는 EDLC 모듈로부터측정된단자전압을기반으로현재운전상태가충전운전상태인지방전운전상태인지를판별하는충전/방전판별부; 측정된상기단자전압을기반으로가중치를설정하는가중치설정부; 측정된상기 EDLC 모듈의단자전압에기 설정된가중치를적용하는가중치적용부; 및상기가중치가적용된단자전압과기 설정된운전전압을기반으로상기 EDLC 모듈의충전또는방전을제한하는충전/방전결정부를포함하는것을특징으로한다.
Abstract translation: 本发明公开了一种使用权重函数来控制EDLC的输出的装置及其方法。 根据本发明的使用权重函数来控制EDLC的输出的装置包括：充电/放电识别单元，其基于由EDLC测量的端子电压来识别当前操作状态是充电操作状态或放电操作状态 模块; 重量设定单元，其基于测量的端子电压来设定重量; 权重应用单元，其对所测量的EDLC模块的终端电压施加预设权重; 以及充电/放电确定单元，其基于施加了权重的端子电压和预设操作电压来限制EDLC模块的充电或放电。
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