公开(公告)号：US20110255307A1

公开(公告)日：2011-10-20

申请号：US12906425

申请日：2010-10-18

Applicant: Tae Hoon KIM ,  Jae Hyung KIM ,  Jun Gu KIM ,  Yong Hyok JI ,  Chung Yuen WON ,  Doo Young SONG ,  Byoung Kuk LEE ,  Dong Seong OH ,  Tae Won LEE ,  Jin Wook KIM

Inventor： Tae Hoon KIM ,  Jae Hyung KIM ,  Jun Gu KIM ,  Yong Hyok JI ,  Chung Yuen WON ,  Doo Young SONG ,  Byoung Kuk LEE ,  Dong Seong OH ,  Tae Won LEE ,  Jin Wook KIM

IPC: H02M7/00

CPC classification number: H02J3/383 ,  H02M1/12 ,  H02M7/53875 ,  Y02E10/563

Abstract: There are provided an apparatus and a method for controlling the power quality of a power generation system. According to the present invention, there is provided an apparatus for controlling the power quality of a power generation system including a DC/AC inverter converting DC voltage into AC voltage and supplying inverter current to a grid, including: a grid voltage phase follower generating a grid signal; a fundamental extractor extracting a magnitude of a fundamental wave of a load current introduced into a non-linear load connected between the DC/AC inverter and the grid; a first calculator subtracting a preset current compensation value from the magnitude of the fundamental wave from the fundamental extractor; and a second calculator generating an inverter current instruction value for the DC/AC inverter by using the output value of the first calculator and the grid signal and the load current from the grid voltage phase follower.

Abstract translation: 提供了一种用于控制发电系统的电力质量的装置和方法。 根据本发明，提供了一种用于控制发电系统的电力质量的装置，该发电系统包括将DC电压转换为AC电压并将逆变器电流提供给电网的DC / AC逆变器，包括：电网电压相位跟随器， 电网信号; 提取引入到DC / AC逆变器和电网之间的非线性负载的负载电流的基波的大小的基本提取器; 第一计算器从基波提取器从基波的幅度减去预设电流补偿值; 以及第二计算器，通过使用第一计算器的输出值和电网信号以及来自电网电压相位跟随器的负载电流，为DC / AC逆变器产生逆变器电流指令值。