公开(公告)号：US20150357911A1

公开(公告)日：2015-12-10

申请号：US14468610

申请日：2014-08-26

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chih-Hung HSIAO ,  Jo-Fang WEI ,  Li-Wei HSIAO

IPC: H02M1/42 ,  H02J5/00 ,  H02M7/04

CPC classification number: H02M1/4216 ,  H02J5/00 ,  H02M7/04 ,  Y02B70/126

Abstract: A power conversion system of a multi-phase generator used to provide a power factor correction for a multi-phase generator. The power conversion system of the multi-phase generator includes a multi-phase power conversion unit and a control unit. The multi-phase power conversion unit receives a plurality of generator voltages and a plurality of generator currents generated from the multi-phase generator, and converts the generator voltages into a DC voltage and a DC current. The control unit controls the generator currents to linearly follow the generator voltages, therefore the power factor correction for the multi-phase generator is achieved.

Abstract translation: 一种多相发生器的电力转换系统，用于为多相发电机提供功率因数校正。 多相发电机的电力转换系统包括多相电力转换单元和控制单元。 多相电力转换单元接收从多相发电机产生的多个发电机电压和多个发电机电流，并将发电机电压转换成直流电压和直流电流。 控制单元控制发电机电流线性跟随发电机电压，从而实现多相发电机的功率因数校正。

公开(公告)号：US20180138853A1

公开(公告)日：2018-05-17

申请号：US15370345

申请日：2016-12-06

Applicant: DELTA ELECTRONICS, INC.

Inventor： Wei-Shuo TSENG ,  Chao-Chin CHUANG ,  Yao-Yang YU ,  Li-Wei HSIAO

IPC: H02P29/10 ,  H02P6/14 ,  H02P27/06

CPC classification number: H02P29/10 ,  H02M1/32 ,  H02M1/4225 ,  H02M2001/0022 ,  H02M2001/325 ,  H02M2001/4291 ,  H02P6/085 ,  H02P6/14 ,  H02P6/28 ,  H02P23/26 ,  H02P27/06 ,  H02P2201/07 ,  Y02B70/126 ,  Y02P80/112

Abstract: An electronically commutated fan system includes an alternating-current-to-direct-current conversion unit, an inverter unit and a control unit. The alternating-current-to-direct-current conversion unit converts an alternating-current input power source into a first direct-current power source. The inverter unit is electrically connected between the alternating-current-to-direct-current conversion unit and a fan. The inverter unit converts the first direct-current power source into an alternating-current output power source and provides the alternating-current output power source to the fan to rotate. The control unit is electrically connected to the alternating-current-to-direct-current conversion unit and the inverter unit. The control unit controls the alternating-current-to-direct-current conversion unit and the inverter unit to adjust a rotational speed of the fan. When the control unit detects a power variation of the alternating-current input power source, the control unit controls the rotational speed of the fan to be maintained within a first error range.

公开(公告)号：US20150194877A1

公开(公告)日：2015-07-09

申请号：US14314318

申请日：2014-06-25

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chih-Hung HSIAO ,  Jo-Fang WEI ,  Li-Wei HSIAO

IPC: H02M3/07

CPC classification number: H02M3/07 ,  H02J3/38 ,  H02J3/386 ,  H02M1/4225 ,  H02M7/23 ,  Y02B70/126 ,  Y02E10/763 ,  Y02P80/112

Abstract: A parallel-connected power conversion system of a multi-phase generator configured to provide a power factor correction for a multi-phase generator. The parallel-connected power conversion system includes a parallel-connected power conversion apparatus and a control unit. The parallel-connected power conversion apparatus has a plurality of power conversion units connected in parallel to each other. The parallel-connected power conversion apparatus receives a plurality of generator currents and a plurality of generator voltages generated from the multi-phase generator, and outputs a DC voltage. The control unit generates a plurality of control signals to correspondingly control the power conversion units so that the generator currents linearly follow the generator voltages, therefore the power factor correction of the multi-phase generator is achieved.

Abstract translation: 一种并联连接的多相发生器的电力转换系统，其被配置成为多相发电机提供功率因数校正。 并联电力转换系统包括并联电力转换装置和控制单元。 并联电力转换装置具有彼此并联连接的多个电力转换单元。 并联电力转换装置接收从多相发电机产生的多个发电机电流和多个发电机电压，并输出直流电压。 控制单元产生多个控制信号以相应地控制功率转换单元，使得发电机电流线性跟随发电机电压，从而实现多相发电机的功率因数校正。