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    • 2. 发明申请
    • ELECTRIC POWER CONVERSION APPARATUS
    • 电力转换装置
    • WO2017003567A1
    • 2017-01-05
    • PCT/US2016/032375
    • 2016-05-13
    • HELLA CORPORATE CENTER USA, INC.
    • BAI, HuaLU, Juncheng
    • H02M1/12H02M1/15H02M1/42H02M5/458H02M7/48H02M1/00
    • H02M1/12H02M1/15H02M1/42H02M1/4258H02M3/33507H02M5/225H02M5/4585H02M7/4807H02M2001/0058H02M2001/007Y02B70/12Y02B70/1491
    • A single-phase AC/DC electric power conversion apparatus includes an indirect matrix converter having an input interface to receive a first alternating current (AC) signal and an output interface to produce a second AC signal, where the first AC signal has a grid frequency. A transformer has a primary winding and an electrically isolated and magnetically coupled secondary winding. A coupling inductor is connected in series between the output interface of the indirect matrix converter and the primary winding. An H-bridge switching arrangement is connected to the secondary winding and produces an output signal having a DC component and at least one AC component. The at least one AC component has a second order harmonic of the grid frequency. An active filter reduces the second order harmonic AC component. A modular conversion apparatus for three-phase power replicates the single-phase apparatus as a module for each phase and omits the active filter.
    • 单相AC / DC电力转换装置包括具有用于接收第一交流(AC)信号的输入接口和产生第二AC信号的输出接口的间接矩阵转换器,其中第一AC信号具有电网频率 。 变压器具有初级绕组和电隔离和磁耦合次级绕组。 耦合电感串联在间接矩阵转换器的输出接口和初级绕组之间。 H桥开关装置连接到次级绕组,并产生具有DC分量和至少一个AC分量的输出信号。 所述至少一个AC分量具有电网频率的二阶谐波。 有源滤波器减少二次谐波AC分量。 用于三相功率的模块化转换装置将单相装置复制为每相的模块,并省略有源滤波器。
    • 6. 发明申请
    • ソーラー発電分極防止装置
    • 太阳能发电极化预防装置
    • WO2014125602A1
    • 2014-08-21
    • PCT/JP2013/053576
    • 2013-02-14
    • サンテックパワージャパン株式会社
    • 福重 泰治
    • H01L31/04H01L31/042H02M7/48
    • H01L31/02021H02M7/4807Y02E10/50
    •  PID現象が発生した場合に、後付けでソーラー発電分極防止装置30を既設の発電モジュールストリング11とパワーコンディショナ20との電力線接続の間に介在するように設置する。ソーラー発電分極防止装置30は、入力部40、出力部50、電源部60、絶縁トランス部70から構成されている。入力部40は発電モジュールストリング11と絶縁トランス部70との間に、入力端子部41、DC/AC変換部42、交流波形整形部43、漏電遮断部44の順に電力線を介して接続され、入力端子部41に接続された分極防止装置30内の電力線の負極側の点Aを接地する。
    • 在发生PID现象的情况下,太阳能发电极化防止装置(30)被可逆地安装以便插入到现有发电模块组(11)的电力线连接和功率调节器( 20)。 太阳能发电极化防止装置(30)由输入单元(40),输出单元(50),电源单元(60)和隔离变压器单元(70)构成。 输入单元(40)通过输入端子单元(41),DC / AC转换单元(42)的顺序经由电力线连接在发电模块组(11)和隔离变压器单元(70)之间, ,AC波形整形单元(43)和泄漏截止单元(44)。 连接到输入端子单元(41)的偏振防止装置(30)内的电力线的阳极侧点(A)接地。
    • 8. 发明申请
    • SOLAR INVERTER
    • 太阳能逆变器
    • WO2014066783A2
    • 2014-05-01
    • PCT/US2013066852
    • 2013-10-25
    • SUNEDISON MICROINVERTER PRODUCTS LLC
    • POTHARAJU SURYANARAYANA
    • H02J3/38
    • H02M7/5395H02J3/383H02M1/143H02M3/3376H02M7/4807H02M7/5387Y02E10/563
    • An inverter device has an active ripple cancellation boost circuit being configured to a DC source from a plurality of solar cells and configured to filter an AC current ripple back to the DC source and boost the DC voltage to an intermediary 12-15 voltage range. The device has a wave shaper circuit comprising a phase shift zero voltage switching full bridge circuit and a rectifier energy recovery circuit, the phase shift zero voltage switching full bridge circuit configured to shape the DC source to a half wave rectified 120V to 240V waveform. The device has an analog mixed signal controller module configured to generate a PWM waveform and synchronize the rectified waveform to a grid voltage.
    • 逆变器装置具有主动纹波消除升压电路,其被配置为来自多个太阳能电池的DC源,并被配置为将AC电流纹波过滤回到DC源并将DC电压升压到中间的12-15电压范围。 该装置具有包括相移零电压开关全桥电路和整流器能量恢复电路的波形整形电路,该相移零电压开关全桥电路被配置为将DC源形成半波整流的120V至240V波形。 该器件具有模拟混合信号控制器模块,用于产生PWM波形并将整流波形同步到电网电压。
    • 10. 发明申请
    • ELECTRICAL POWER DISTRIBUTION SYSTEM FOR DATA CENTERS
    • 数据中心电力分配系统
    • WO2014026840A2
    • 2014-02-20
    • PCT/EP2013/065754
    • 2013-07-25
    • ABB TECHNOLOGY AG
    • DUJIC, DrazenKIEFERNDORF, FrederickCANALES, Francisco
    • H02J1/10H02J5/00H02J9/06H02M3/335H02M7/219H02M7/48
    • H02J1/102H02J5/00H02J9/061H02M3/33523H02M7/219H02M7/4807H02M7/49H02M2001/007H02M2001/0074H02M2001/325
    • The present invention relates to a power distribution system (1) for supplying electrical power to a plurality of low-voltage DC loads in a data center, comprising: -a galvanically isolated converter arrangement (3) for transforming a medium-voltage AC power provided on an utility line (2) to a low/medium DC voltage provided on a first DC bus (5); and -a plurality of DC loads to be supplied with a low DC voltage generated from the low/medium DC voltage on the first DC bus (5) by means of one or more additional DC/DC converters, characterized in that the converter arrangement (3) has one converter unit (21) per phase, wherein each of the converter units (21) has a plurality of converter cells (22), and wherein each converter cell (22) has an AC/DC converter stage (23, 31) followed by a DC/DC converter stage (24, 32), wherein the DC/DC converter stage (24, 32) has a DC/AC converter and an AC/DC converter coupled to a medium-or high-frequency transformer for galvanic isolation.
    • 本发明涉及一种用于向数据中心中的多个低压DC负载供电的配电系统(1),包括: - 电流隔离的转换器装置(3),用于 将在公用线路(2)上提供的中压AC电力转换为在第一DC总线(5)上提供的低/中DC电压; 以及 - 借助于一个或多个额外的DC / DC转换器在所述第一DC总线(5)上由所述低/中DC电压产生的低DC电压供应多个DC负载,其特征在于所述转换器装置( 3)每相具有一个转换器单元(21),其中每个转换器单元(21)具有多个转换器单元(22),并且其中每个转换器单元(22)具有AC / DC转换器级(23,31 )之后是DC / DC转换器级(24,32),其中DC / DC转换器级(24,32)具有DC / AC转换器和耦合到中频或高频变压器的AC / DC转换器,用于 电隔离。