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    • 33. 发明授权
    • 태양광 발전용 계통 연계형 병렬 인버터 시스템
    • 并行逆变器系统连接网格用于光伏发电
    • KR101346579B1
    • 2014-01-06
    • KR1020130119582
    • 2013-10-08
    • 데스틴파워 주식회사
    • 오성진배영상
    • H02J3/36H02J3/01H02M7/48H02M1/14
    • H02J3/383H01L31/02021H02M1/126H02M1/14H02M7/493Y02E10/563
    • The present invention relates to a photovoltaic generation system using a system connection type parallel inverter capable of decreasing a floating current; reducing the distortion of a photovoltaic module caused by the floating current; and reducing the harmonic distortion of an output waveform. The photovoltaic generation system using the system connection type parallel inverter comprises a plurality of photovoltaic generation devices which is connected in parallel and a transformer which transforms the output voltage of a photovoltaic generation device and which connects the same to the system. The photovoltaic generation device comprises a photovoltaic module which converts photovoltaic energy into DC electricity energy; an inverter which converts the DC electricity energy into AC electricity energy; an LC filter which removes noise included in the AC electricity energy; and a capacitor group of a Y connection which is connected between the other end of a reactor of the LC filter and the other end of the photovoltaic module for reducing the floating current.
    • 本发明涉及一种使用能够降低浮动电流的系统连接型并联逆变器的光伏发电系统; 降低由浮动电流引起的光伏模块的失真; 并减少输出波形的谐波失真。 使用系统连接型并联逆变器的光伏发电系统包括并联连接的多个光伏发电装置和将光伏发电装置的输出电压变换为系统的变压器。 光伏发电装置包括将光能转换成直流电能的光电模块; 将直流电能转换为交流电能的逆变器; 一个消除交流电能中包含的噪声的LC滤波器; 以及连接在LC滤波器的电抗器的另一端和光伏模块的另一端之间的Y连接的电容器组,用于减小浮动电流。
    • 35. 发明公开
    • 에너지 저장 시스템 및 그의 제어 방법
    • 能源储存系统及其控制方法
    • KR1020130104771A
    • 2013-09-25
    • KR1020120026603
    • 2012-03-15
    • 삼성에스디아이 주식회사
    • 민병선
    • H02J3/36H02J3/32H02J3/38H02J7/35H04W52/02H02J3/00
    • H02J7/35H02J3/32H02J3/383H02J2003/007Y02E10/563Y02E10/566Y02E60/76Y02E70/30Y04S40/22H02J3/36H02J3/385H04W52/0261
    • PURPOSE: An energy storage system and a control method thereof stabilize the system by controlling the output power of an inverter constantly. CONSTITUTION: A bidirectional inverter (212) outputs generated power of a power generation system to a system (240). The bidirectional inverter outputs the power of a battery to the system. The charging and discharging of the battery is performed in an allowable range of battery residual capacity. An integrated controller (214) controls the output power of the inverter by predictive generated power. The predictive generated power is calculated based on weather. [Reference numerals] (211) Power conversion unit; (212) Bidirectional inverter; (213) Bidirectional converter; (214) Integrated controller; (216) DC link unit; (220) Battery; (230) Generation system; (240) System; (250) Load
    • 目的:一种能量储存系统及其控制方法,通过不断控制逆变器的输出功率来稳定系统。 构成:双向逆变器(212)将发电系统的发电功率输出到系统(240)。 双向变频器将电池的电源输出到系统。 电池的充电和放电在电池剩余容量的允许范围内进行。 集成控制器(214)通过预测发电功率来控制逆变器的输出功率。 预测发电量是基于天气计算的。 (附图标记)(211)功率转换单元; (212)双向变频器; (213)双向转换器; (214)集成控制器; (216)直流链路单元; (220)电池; (230)发电系统; (240)系统; (250)负载
    • 36. 发明授权
    • 고효율 태양광 발전장치
    • 高效太阳能发电机
    • KR101298021B1
    • 2013-08-26
    • KR1020130056745
    • 2013-05-20
    • (주)가람이앤씨
    • 김성수
    • H02N6/00G05F1/67H02J3/36H02J3/01
    • H02J3/383H01L31/0504H01L31/052H02M1/126H02M2001/0064H02S40/42Y02E10/563
    • PURPOSE: A high-efficiency photovoltaic device is provided to efficiently operate power outputted from multiple solar unit modules and improve cooling efficiency by cooling the solar unit module whose generation efficiency is decreased by heat in an operation. CONSTITUTION: A high-efficiency photovoltaic device includes multiple solar unit modules (21) connected to each other in parallel and series while generating power from multiple solar cells; a module controller (22) which measures currents and voltages outputted from the solar unit module, connects a contact point to X axis or Y axis between the solar unit modules by turning an X axis switch and a Y axis switch on and off through a control unit, and outputs solar output power at a unit module array; multiple inverters (24) which have different allowable input voltage range values; a matrix switch (23) which inputs an output line to the inverter by selecting the output line of an input voltage within the allowable input voltage range among the solar unit module array; a program switch (25) which supplies power to a load through a wiring circuit breaker programmed according to ON/OFF contact points of a magnet switch by including one or more outputs of the magnetic switch and an independent wiring programmed between the wiring circuit breakers; a main control unit (26) which controls the control unit by receiving a measured current value and voltage value of the solar unit module from the module controller; and a solar panel (2) made of a frame in which the multiple solar unit modules are mounted. [Reference numerals] (23) Matrix switch; (AA) First inverter; (BB) Second inverter; (CC) Load 1; (DD) Load 2; (EE) Load 3; (FF) Load 4
    • 目的:提供一种高效率的光伏器件,以有效地操作从多个太阳能单元模块输出的功率,并且通过在运行中通过冷却发电效率降低的太阳能单元模块来降低其效率。 构成:高效光伏器件包括多个太阳能电池组件(21),并联并串联连接,同时从多个太阳能电池发电; 测量从太阳能单元模块输出的电流和电压的模块控制器(22),通过控制X轴开关和Y轴开关的接通和断开来将接触点与太阳能单元模块之间的X轴或Y轴相连接 在单位模块阵列输出太阳能输出功率; 多个逆变器(24),其具有不同的允许输入电压范围值; 矩阵开关(23),其通过选择所述太阳能单元模块阵列中的所述容许输入电压范围内的输入电压的输出线来将输出线输入到所述逆变器; 程序开关(25),其通过包括磁开关的一个或多个输出和编程在布线断路器之间的独立布线,通过根据磁开关的接通/断开接点编程的布线断路器向负载供电; 主控制单元,通过从模块控制器接收太阳能单元模块的测量电流值和电压值来控制控制单元; 以及由其中安装有多个太阳能单元模块的框架制成的太阳能电池板(2)。 (附图标记)(23)矩阵开关; (AA)第一台逆变器; (BB)二次变频器; (CC)负载1; (DD)负载2; (EE)负载3; (FF)负载4
    • 39. 发明公开
    • 에너지 시스템에서 전력 공급 장치 및 방법
    • 能源供应系统的设备和方法
    • KR1020130085667A
    • 2013-07-30
    • KR1020120006609
    • 2012-01-20
    • 청주대학교 산학협력단
    • 양오
    • G05F1/66G05F1/10
    • H02S40/32G01R23/20Y02E10/563
    • PURPOSE: A power supply apparatus in an energy system and a method thereof are provided to stably supply electricity by analyzing a harmonic wave component which is included in an electric energy and controlling an AC power. CONSTITUTION: An inverter unit (230) outputs an AC power of an electric energy. An analysis unit (252) analyzes a harmonic wave of AC power. An adjusting unit (254) generates an adjustment value of AC power by using a total harmonic distribution (THD) of AC power which corresponds to the harmonic wave analysis. A control unit controls an AC power to be outputted above a fixed level by controlling the current of the AC power through an optimal current control gain value after generating the optimal current control gain value by using the adjustment value. [Reference numerals] (210) Solar battery unit; (220) Converter unit; (230) Inverter unit; (240) Common use system unit; (252) Analysis unit; (256) Control unit; (AA,DD) Current; (BB,CC) Voltage
    • 目的:提供能量系统中的电源装置及其方法,通过分析包含在电能中并控制AC电力的谐波分量来稳定地供电。 构成:逆变器单元(230)输出电能的交流电力。 分析单元(252)分析AC电力的谐波。 调整单元(254)通过使用与谐波分析对应的交流电力的总谐波分布(THD)来生成交流电力的调整值。 控制单元通过使用调整值生成最佳电流控制增益值后,通过最佳电流控制增益值控制交流电力的电流来控制输出高于固定电平的交流电力。 (附图标记)(210)太阳能电池单元; (220)转换器单元; (230)变频器单元; (240)常用系统单元; (252)分析单位; (256)控制单元; (AA,DD)电流; (BB,CC)电压