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公开(公告)号：KR101319789B1
公开(公告)日：2013-10-17
申请号：KR1020100133372
申请日：2010-12-23
Applicant: 삼성전기주식회사 , 전남대학교산학협력단
CPC classification number: H03K17/168
Abstract: 본 발명은 스위칭 장치 및 스위칭 장치의 오작동 방지방법에 관한 것으로, 복수의 디지털 제어신호를 출력하는 컨트롤러; 상기 컨트롤러와 연결되며, 컨트롤러에서 출력된 복수의 디지털 제어신호가 동시에 ON 상태로 수신되면 모든 신호를 차단하는 보호부; 상기 보호부와 연결되며 보호부를 통과한 제어신호를 변환하여 스위치 제어신호를 발생하는 게이트 드라이버; 및 상기 게이트 드라이버와 연결되어 각각의 스위치 제어신호에 따라 개별적으로 ON·OFF 동작을 수행하는 복수의 스위치;를 포함하여 구성된다.
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公开(公告)号：KR101312372B1
公开(公告)日：2013-09-27
申请号：KR1020120087219
申请日：2012-08-09
Applicant: 전남대학교산학협력단
Abstract: PURPOSE: A single-phase power converter for alternating current (AC)/AC, AC/direct current (DC), AND DC/AC is provided to increase service life without the service life of smoothing capacitor by removing the smoothing capacitor and a full bridge diode for rectifying input AC power. CONSTITUTION: An inductor (120) is connected on the one side of an AC power input unit (110) and is charged and discharged with power. A charging switch (130) includes a first switch (131) and a second switch (132) connected with each other. A two-way switch (140) includes a third switch (141) and a fourth switch (142) directly connected with each other. An AC power output unit (150) is connected with the other side of the two-way switch and the other side of the charging switch. A DC power output unit (160) outputs the power of the AC power input unit in the direct current form.
Abstract translation: 目的：提供交流（AC）/ AC，AC /直流（DC），和DC / AC的单相电源转换器，以通过去除平滑电容器和充满电而延长使用寿命，无需平滑电容器的使用寿命 用于整流输入交流电源的二极管。 构成：电感器（120）连接在交流电源输入单元（110）的一侧，并通电而进行充电和放电。 充电开关（130）包括彼此连接的第一开关（131）和第二开关（132）。 双向开关（140）包括彼此直接连接的第三开关（141）和第四开关（142）。 交流电源输出单元（150）与双向开关的另一侧和充电开关的另一侧连接。 直流电力输出单元（160）以直流形式输出交流电力输入单元的电力。
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公开(公告)号：KR101310100B1
公开(公告)日：2013-09-23
申请号：KR1020120001509
申请日：2012-01-05
Applicant: 전남대학교산학협력단
Abstract: 본 발명은 병렬 제어기에 관한 것으로, 보다 구체적으로는 부하분담과 리던던시를 위하여 고속의 디지털 캔 통신을 이용하고, 고장을 판단하고 고장판단을 위한 통신선을 분리하는 두 개의 워치독을 구비하여 고장발생시 즉시 리던던시를 위한 모듈을 투입하여 부하를 분담하고 이후에 고장난 모듈의 위치를 판단함으로써 효율적이고 고속의 부하분담을 수행할 수 있는 캔 통신을 이용한 병렬 제어기에 관한 것이다.
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公开(公告)号：KR101258953B1
公开(公告)日：2013-04-29
申请号：KR1020120000474
申请日：2012-01-03
Applicant: 전남대학교산학협력단
IPC: H03L7/08
Abstract: PURPOSE: A PLL(Phase-Locked Loop) controller using feed-forward is provided to improve the responsiveness of phase angle estimation by estimating disturbance-resistant phase angles. CONSTITUTION: A PLL controller(100) includes a two-phase signal generator(110), a d-q converter(120), a loop filter(130), a feed-forward controller(140), and a feed-forward calculator(150). The two-phase signal generator converts the system voltage to two-phase voltages on a stationary frame. The d-q converter converts the two-phase voltages on the stationary frame to two-phase voltages on a rotating frame. The loop filter calculates a real phase angle of the system voltage by applying a gain value to the d-axis voltage among the two-phase voltages on the rotating frame. The feed-forward controller receives the two-phase voltages on the rotating frame and calculates a reference phase angle of the system voltage. The feed-forward calculator feed-forwards the reference phase angle to the real phase angle and calculates a final estimated phase angle.
Abstract translation: 目的：提供使用前馈的PLL（锁相环）控制器，通过估计抗干扰相位角来提高相位角估计的响应性。 构成：PLL控制器（100）包括两相信号发生器（110），dq转换器（120），环路滤波器（130），前馈控制器（140）和前馈计算器（150） ）。 两相信号发生器将系统电压转换为固定框架上的两相电压。 d-q转换器将固定框架上的两相电压转换为旋转框架上的两相电压。 环路滤波器通过对旋转框架上的两相电压之间的d轴电压施加增益值来计算系统电压的实际相位角。 前馈控制器接收旋转框架上的两相电压并计算系统电压的参考相位角。 前馈计算器将参考相位角反馈到实际相位角，并计算出最终估计的相位角。
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公开(公告)号：KR101256047B1
公开(公告)日：2013-04-18
申请号：KR1020110145550
申请日：2011-12-29
Applicant: 전남대학교산학협력단
IPC: H02P9/14
Abstract: PURPOSE: An exciter controller capable of using the amount of current change of the exciter as a feed-forward term is provided to pull the current command value and regularly control the output power. CONSTITUTION: A voltage comparative unit(111) outputs the voltage error of the command value voltage of a generator and the real voltage. A command value current controller(112) outputs the voltage error by calculating into the command value current of the exciter. A feed-forward controller(113) outputs the amount of current change as a feed-forward term. A current comparator(114) outputs the difference value of the real current of the exciter as the current error. A driving current controller(115) outputs by calculating as the driving current of the exciter.
Abstract translation: 目的：提供能够使用励磁机的电流变化量作为前馈项的励磁机控制器来拉动电流指令值并定期控制输出功率。 构成：电压比较单元（111）输出发电机的指令值电压和实际电压的电压误差。 命令值电流控制器（112）通过计算出激励器的指令值电流来输出电压误差。 前馈控制器（113）输出当前变化量作为前馈项。 电流比较器（114）将励磁机的实际电流的差值作为电流误差输出。 驱动电流控制器（115）通过计算作为励磁机的驱动电流而输出。
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Patent Agency Ranking
公开(公告)号：KR1020130002680A
公开(公告)日：2013-01-08
申请号：KR1020110063792
申请日：2011-06-29
Applicant: 삼성전기주식회사 , 전남대학교산학협력단
CPC classification number: H02J1/102 , H02J3/382 , H02M7/48 , H02M2001/007
Abstract: PURPOSE: A grid connected power conversion device is provided to control an inverter with a command current value. CONSTITUTION: One or more DC/DC converters(200a-200z) are connected to one or more renewable energy sources. The voltage value of a DC link module(300) is determined by the sum total of the output current from one or more DC/DC converters. An inverter unit(400) determines a command current value from the voltage value of the DC link module. The inverter unit generates AC voltage according to a command current value. [Reference numerals] (100a,100b,100z) New renewable energy; (200a,200b,200z) DC/DC converter; (410) 3 phase inverter; (420) Control unit; (500) System
Abstract translation: 目的：提供并网电力转换装置，以控制逆变器的指令电流值。 规定：一个或多个DC / DC转换器（200a-200z）连接到一个或多个可再生能源。 DC链路模块（300）的电压值由来自一个或多个DC / DC转换器的输出电流的总和确定。 逆变器单元（400）根据直流链路模块的电压值确定指令电流值。 变频器单元根据指令电流值产生交流电压。 （附图标记）（100a，100b，100z）新的可再生能源; （200a，200b，200z）DC / DC转换器; （410）3相逆变器; （420）控制单元; （500）系统
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公开(公告)号：KR101215982B1
公开(公告)日：2012-12-27
申请号：KR1020110012450
申请日：2011-02-11
Applicant: 주식회사 고아정공 , 전남대학교산학협력단
IPC: H05B37/02
Abstract: 본발명은 LED 구동회로에관한것이다. 즉, 본발명에서는다채널 LED 광원을구동하는 LED 구동회로에서온도변화에따른 LED 등가저항변화로인한전류변동을보상하기위해직렬저항대신에너지회수가가능한 DC/DC 컨버터를사용하고, 온도변화에따른전압변동을보상하기위해각 채널의 DC/DC 컨버터에서회수되는에너지를수집하여전원측으로환원시키는전력변환기를구성함으로써 LED 구동회로에서에너지효율을크게개선시킬수 있다.
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公开(公告)号：KR101182216B1
公开(公告)日：2012-09-11
申请号：KR1020110001134
申请日：2011-01-05
Applicant: 전남대학교산학협력단
IPC: H02M7/48
Abstract: 본 발명은 3-레벨 인버터에 관한 것이다.
본 발명에 의한 3-레벨 인버터는 전원 입력부; 두 개의 스위치가 대면하여 구현되는 센트럴 암 및 센트럴 암의 일단에 풀-브릿지 형태로 구현되는 제 1 내지 제 4 스위치를 포함하는 스위치부; 스위치부의 출력단에 연결되는 LC 필터부; 및 LC 필터부와 연결되는 출력부;를 구비한다.-
公开(公告)号：KR1020120092408A
公开(公告)日：2012-08-21
申请号：KR1020110012450
申请日：2011-02-11
Applicant: 주식회사 고아정공 , 전남대학교산학협력단
IPC: H05B37/02
CPC classification number: H05B33/083 , F21V23/004 , F21Y2101/00 , H05B33/0818 , H05B33/0827 , Y02B20/347
Abstract: PURPOSE: An LED drive circuit is provided to compensate current variation due to an LED equivalent resistance changed according to temperature by employing a DC/DC converter instead of a serial resistance. CONSTITUTION: An LED drive circuit comprises an LED array which drives LEDs with operating power, DC/DC converters(404,406,408) which are connected to the LED array and convert the an equivalent resistance to supply constant current to the LEDs, and a power transformer(410) which collects voltage from the DC/DC converters and supplies the operating power to a power unit(400).
Abstract translation: 目的：提供LED驱动电路，用于补偿由于采用DC / DC转换器而不是串联电阻而根据温度变化的LED等效电阻引起的电流变化。 构成：LED驱动电路包括驱动具有工作电源的LED的LED阵列，连接到LED阵列的DC / DC转换器（404,406,408），并将等效的电阻转换为向LED提供恒定电流，以及电源变压器 410），其从DC / DC转换器收集电压，并将工作电力提供给电力单元（400）。
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公开(公告)号：KR1020120079758A
公开(公告)日：2012-07-13
申请号：KR1020110001132
申请日：2011-01-05
Applicant: 전남대학교산학협력단
CPC classification number: Y02B70/1491 , Y02E10/76
Abstract: PURPOSE: A current type PWM(Pulse Width Modulation) inverter is provided to reduce a switching loss through a zero current switching by forming a switch element as a full-bridge form. CONSTITUTION: A current type PWM inverter comprises a voltage source, a converter unit, first to fourth switches(120,122,124,126), and an output unit. The voltage source supplies a direct current voltage. The converter nit is used for a voltage applied from the voltage source to boost/pressurize. The converter unit comprises first and second PWM switches(110,112) for performing pulse width modulation. The first and second rectifier element is respectively formed in both end parts of the converter unit. The first to fourth switches are formed in the output terminal of the converter unit.
Abstract translation: 目的：通过形成开关元件作为全桥形式，提供电流型PWM（脉宽调制）逆变器，以通过零电流切换来减少开关损耗。 构成：电流型PWM逆变器包括电压源，转换器单元，第一至第四开关（120,122,124,126）和输出单元。 电压源提供直流电压。 转换器nit用于从电压源施加的电压以升压/加压。 转换器单元包括用于执行脉宽调制的第一和第二PWM开关（110,112）。 第一和第二整流元件分别形成在转换器单元的两个端部。 第一至第四开关形成在转换器单元的输出端。
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