公开(公告)号：KR1020090056124A

公开(公告)日：2009-06-03

申请号：KR1020070123149

申请日：2007-11-30

Applicant: 한국전기연구원

Inventor： 조창희 ,  손천돈 ,  전진홍 ,  김슬기 ,  안종보

IPC: G06F11/07

Abstract: The failure safe system of a dual processor control device for individually monitoring the state of a different task and an operation task of a processor of the other party through a common memory between two processors are provided to install the common memory without addition of the separate hardware. The failure safe architecture of a dual processor controller comprises two processors(10, 20) and a common memory(30). The common memory is connected to between two processors. The operation state of two processors is detected by the common memory. In case the malfunction occurs among two processors, the common memory generates the malfunction return signal.

Abstract translation: 提供双处理器控制装置的故障安全系统，用于通过两个处理器之间的公共存储器单独地监视另一方的处理器的不同任务的状态和操作任务的状态，以安装公共存储器而不添加单独的硬件 。 双处理器控制器的故障安全架构包括两个处理器（10,20）和公共存储器（30）。 公共存储器连接到两个处理器之间。 两个处理器的操作状态由公共存储器检测。 如果在两个处理器之间出现故障，公共存储器会产生故障返回信号。

公开(公告)号：KR1020090055057A

公开(公告)日：2009-06-02

申请号：KR1020070121775

申请日：2007-11-28

Applicant: 한국전기연구원

Inventor： 전진홍 ,  김슬기 ,  김종율 ,  조창희 ,  안종보

IPC: G06F15/16

Abstract: A data link intermediating apparatus and a communication system having the same are provided to obtain the same effect as an actual microgrid pilot plant by forming a computer-based RTDS and an interface so as to be the same as the actual microgrid driving state. A data link intermediating apparatus comprises a display device(310), a communication interface(320), a hard wire interface(330), a processor(340) and an EPLD(Erasable Programmable Logic Device)(350). The communication interface transmits and receives signals for monitoring and controlling the states of an MMS(Microgrid Management System)(210) and component devices within a microgrid. The hard wire interface transmits and receives driving states of main microgrid components which are being simulated by RTDS(Real Time Digital Simulator)(220) and control commands. The processor implements various communication protocols for driving the communication interface.

Abstract translation: 提供数据链路中介装置和具有该数据链路中间装置的通信系统，以通过形成与实际的微电网驱动状态相同的基于计算机的RTDS和接口来获得与实际的微电网中试装置相同的效果。 数据链路中介装置包括显示设备（310），通信接口（320），硬线接口（330），处理器（340）和EPLD（可擦除可编程逻辑设备）（350）。 通信接口发送和接收用于监视和控制微电网内的MMS（微电网管理系统）（210）和组件设备的状态的信号。 硬线接口传输和接收正在由RTDS（实时数字模拟器）（220）和控制命令模拟的主微电网组件的驱动状态。 处理器实现用于驱动通信接口的各种通信协议。

公开(公告)号：KR1020090029055A

公开(公告)日：2009-03-20

申请号：KR1020070094311

申请日：2007-09-17

Applicant: 한국전기연구원

Inventor： 김종율 ,  전진홍 ,  조창희 ,  김슬기 ,  안종보

IPC: H02J3/38

CPC classification number: Y02P80/14

Abstract: A control method for microgrid including multiple distributed generation and energy storage device are provided to perform the operation stable and efficient of the microgrid using the energy store device having the quick response characteristic. The energy storing device(61) of the quick response characteristic performs the first control. The distributed power(63) of the slow response characteristic performs the second control. In the second control, the distributed power outputs as the output of the energy store device by the first control. The control module(62) changes the output of the rest distributed power as the output of the energy storing device. The programmable locked loop performs the role of dividing the output of the whole energy storing device into each distributed power. The energy storing device controls microgrid. A plurality of distributed powers instead of the output of the energy store device makes the output value of the energy store device zero.

Abstract translation: 提供了包括多个分布式发电和能量存储装置在内的微电网控制方法，使用具有快速响应特性的能量存储装置来执行微电网的操作稳定和高效。 快速响应特性的能量存储装置（61）执行第一控制。 慢响应特性的分布式功率（63）进行第二控制。 在第二控制中，通过第一控制将分布式功率输出作为能量存储装置的输出。 控制模块（62）改变剩余分布式电力的输出作为能量存储装置的输出。 可编程锁定环执行将整个储能装置的输出分成每个分布式电力的作用。 储能装置控制微电网。 多个分布式功率而不是能量存储装置的输出使能量存储装置的输出值为零。

公开(公告)号：KR1020080111712A

公开(公告)日：2008-12-24

申请号：KR1020070060014

申请日：2007-06-19

Applicant: 한국전기연구원

Inventor： 조창희 ,  손천돈 ,  전진홍 ,  김슬기 ,  안종보

IPC: H02J3/40

Abstract: A coordinates conversion type phase angle detection method estimating synchro-angle according to breaker closing time and bumpless auto synchronizer are provided to prevent a damage of an apparatus and to extend a lifetime of a system by relieving an impact of a generator by a voltage difference due to a breaker operation time delay. A coordinates conversion type phase angle detection method comprises the following steps: a step for sensing a breaker operation state(S1); a step for sampling a voltage supplied through a power system and a generator while a breaker is opening(S2); a step for checking a phase sequence of a three-phase power about a sampled signal(S3); a step for converting coordinates using a reference axis coordinate about a phase sequence signal(S4); a step for operating a variable of a root mean square voltage, a phase angle, a synchro-angel, a synchronous speed etc about a converted value(S5); and a step for determining a breaker closing through a voltage comparing step(S7) and a speed comparing step(S8) after operating step(S11).

Abstract translation: 提供了一种根据断路器闭合时间和无扰动自动同步器估计同步角的坐标转换型相位角检测方法，以防止设备损坏，并通过将发电机的冲击消除由于电压差而延长系统的使用寿命 到断路器运行时间延迟。 坐标转换型相位角检测方法包括以下步骤：用于检测断路器操作状态的步骤（S1）; 在断路器断开时采样通过电力系统和发电机提供的电压的步骤（S2）; 用于检查关于采样信号的三相电力的相位序列的步骤（S3）; 使用关于相位序列信号的参考轴坐标转换坐标的步骤（S4）; 用于操作关于转换值的均方根电压，相位角，同步角，同步速度等的变量的步骤（S5）; 以及在操作步骤（S11）之后通过电压比较步骤（S7）和速度比较步骤（S8）确定断路器闭合的步骤。

公开(公告)号：KR100856715B1

公开(公告)日：2008-09-04

申请号：KR1020060100559

申请日：2006-10-17

Applicant: 한국전기연구원

Inventor： 안종보 ,  전진홍 ,  조창희 ,  김슬기 ,  윤기갑

IPC: H02J3/38

Abstract: 분산발전 시스템이 배전계통의 일정 지역의 부하를 감당할 만큼 충분히 보급된 상태를 전제로 이들을 통합적으로 제어하고 운영하는 새로운 배전망의 형태인 마이크로 그리드에 있어서 마이크로 그리드의 단독 운전 상황을 검출하기 위한 마이크로 그리드용 단독 운전 검출 방법 및 그 장치가 개시되어 있다. 장치는 전력 망에 차단기를 통해 연결되는 마이크로 그리드 및 상기 마이크로 그리드를 전력 망과 연계하여 통합 관리하는 마이크로 그리드 에너지 관리 시스템에 있어서, 상기 차단기를 흐르는 전류 검출하기 위한 전류 검출기; 상기 차단기의 양단 전압을 검출하기 위한 전압 검출기; 상기 전류 및 전압 검출기로부터의 전류 검출 신호 및 전압 검출 신호를 디지털 신호로 변환하기 위한 AD 변환 회로; 상기 마이크로 그리드 에너지 관리 시스템과 통신 가능하게 연결되고, 상기 마이크로 그리드 에너지 관리 시스템으로부터의 단독 운전 검출 개시 신호를 수신하는 경우, 상기 AD 변환 회로로부터의 전압 및 전류 검출 디지털 신호들을 기초로 상기 마이크로 그리드의 단독 운전을 검출하기 위한 신호 처리 프로세서를 포함한다.

公开(公告)号：KR1020080041310A

公开(公告)日：2008-05-13

申请号：KR1020060109203

申请日：2006-11-07

Applicant: 한국전기연구원

Inventor： 전진홍 ,  김슬기 ,  조창희 ,  안종보 ,  김응상 ,  최흥관

IPC: H02J3/38 ,  H02J7/35

CPC classification number: Y02E10/563 ,  Y02E10/566

Abstract: A DC/AC converter control system for a grid-connected transformerless type photovoltaic generation system is provided to secure the stability of an operation of an entire system by using an auxiliary control algorithm for maintaining a proper DC link voltage. A first DQ conversion module is connected to a DC/AC converter and generates synchronous voltage vectors(512,513) required for control by using three-phase distribution voltage(511) and phase angle estimation information(521). A phase synchronous module(520) generates the phase angle estimation information by using the synchronous voltage vectors. A second DQ conversion module generates synchronous current vectors(532,533) by applying the phase angle estimation information to a three-phase current of the DC/AC converter. A current control module(550) generates output voltage vectors(561,562) outputted by the DC/AC converter by comparing an output current reference value(554) with present synchronous current vector information and using generated error information. A DQ inversion module calculates a proper switching time of switching elements constituting the DC/AC converter by using the phase angel estimation information and information of the output voltage vectors. A PWM(Pulse Width Modulation) controls the DC/AC converter by supplying an on and off signal to each of the switching elements according to the switching time calculated by the DQ inversion module. A power control module(540) generates the output current reference value based on output electric energy of a photovoltaic cell array, a voltage(546) of a DC link capacitor, and DC link operation range(547) information.

Abstract translation: 提供了一种用于并网无变压器型光伏发电系统的DC / AC转换器控制系统，以通过使用用于维持适当DC链路电压的辅助控制算法来确保整个系统的操作的稳定性。 第一DQ转换模块连接到DC / AC转换器，并且通过使用三相分配电压（511）和相位角估计信息（521）产生用于控制所需的同步电压矢量（512,513）。 相位同步模块（520）通过使用同步电压矢量产生相位角估计信息。 第二DQ转换模块通过将相位角估计信息应用于DC / AC转换器的三相电流来产生同步电流矢量（532,533）。 电流控制模块（550）通过将输出电流参考值（554）与当前同步电流矢量信息进行比较并使用产生的误差信息来生成由DC / AC转换器输出的输出电压矢量（561,562）。 DQ反相模块通过使用相位角估计信息和输出电压矢量的信息来计算构成DC / AC转换器的开关元件的适当切换时间。 PWM（Pulse Width Modulation，脉宽调制）通过根据由DQ反相模块计算出的切换时间向每个开关元件提供通/断信号来控制DC / AC转换器。 功率控制模块（540）基于光伏电池阵列的输出电能，直流链路电容器的电压（546）和直流链路工作范围（547）来生成输出电流参考值。

公开(公告)号：KR1020060124825A

公开(公告)日：2006-12-06

申请号：KR1020050044362

申请日：2005-05-26

Applicant: 한국전기연구원

Inventor： 안종보 ,  전진홍 ,  조창희 ,  강도현

IPC: H02J3/38

Abstract: A control module for distributed power and a method thereof are provided to reduce manufacturing cost and time by commonly using a control module of the distributed power using a power converting unit. In a control module for distributed power, a control unit(500) generates a power command by selectively realizing algorithm according to the kind of output voltage of an energy source(100), and outputs a switching signal to a rectifier(202) and an inverter(203) of a power converting unit(200) through PWM output by using voltage and current information of the power converting unit(200) according to the power command. The power converting unit(200) is switched by the switching signal, and converts AC or DC power(201) output from the energy source(100) into AC power of desired voltage and frequency.

Abstract translation: 提供了用于分布式电力的控制模块及其方法，以通过使用功率转换单元共同使用分布式电力的控制模块来降低制造成本和时间。 在用于分布式电力的控制模块中，控制单元（500）通过根据能量源（100）的输出电压的种类选择性地实现算法来产生功率指令，并将切换信号输出到整流器（202）和 根据功率指令通过使用电力转换单元（200）的电压和电流信息通过PWM输出的电力转换单元（200）的逆变器（203）。 电力转换单元（200）通过开关信号切换，将从能量源（100）输出的AC或DC电力（201）变换成所需电压和频率的AC电力。

公开(公告)号：KR1020030037609A

公开(公告)日：2003-05-14

申请号：KR1020010068872

申请日：2001-11-06

Applicant: 한국전기연구원

Inventor： 전진홍 ,  김지원 ,  전영환 ,  오태규

IPC: G01R31/00

Abstract: PURPOSE: A multifunctional inspection device for inspecting a variable load is provided to inspect and simulate electrical characteristics by using an unified device. CONSTITUTION: An inverter system portion(101) simulates a characteristic of an arbitrary load, controls a direct link voltage, and recovers the power. A control portion(102) controls the inverter system portion(101). A setup portion(103) is electrically connected with the control portion(102) in order to set up the capacity of arbitrary power and a power factor. A real-time simulation portion(104) is electrically connected with the control portion(102) in order to simulate a complicated load system. A monitoring portion(105) is electrically connected with the control portion(102) in order to monitor states of the total voltage and current of the load system. A communication-interface portion(106) is connected with the control portion(102), the setup portion(103), the real-time simulation portion(104), and the monitoring portion(105).

Abstract translation: 目的：提供用于检查可变负载的多功能检测装置，通过统一设备检查和模拟电气特性。 构成：逆变器系统部分（101）模拟任意负载的特性，控制直接链路电压并恢复电力。 控制部（102）控制逆变器系统部（101）。 设置部分（103）与控制部分（102）电连接以便建立任意功率和功率因数的容量。 实时模拟部分（104）与控制部分（102）电连接以便模拟复杂的负载系统。 监测部分（105）与控制部分（102）电连接，以便监测负载系统的总电压和电流的状态。 通信接口部分（106）与控制部分（102），建立部分（103），实时仿真部分（104）和监视部分（105）连接。