公开(公告)号：US20160226368A1

公开(公告)日：2016-08-04

申请号：US15097209

申请日：2016-04-12

Applicant: ABB Technology AG

Inventor： Peter Al-Hokayem ,  Tobias Geyer ,  Nikolaos Oikonomou

IPC: H02M1/12

CPC classification number: H02M1/126 ,  G05B2219/41406 ,  H02M7/53873 ,  H02M7/53875 ,  H02M2001/0003 ,  H02P21/141 ,  H02P21/30 ,  H02P23/14 ,  H02P23/30

Abstract: An electrical converter is interconnected via a filter with an electrical load or an electrical power source. A method for controlling the converter comprises the steps of: receiving a reference flux (ψ*i) for the electrical converter; determining output signals (y) comprising currents and/or voltages measured in the filter; determining an estimated flux (ψi) from the output signals (y); determining a corrective flux (ψi,damp) from the output signals (y) based on a mathematical model of the filter and a quadratic cost function; determining control input signals (u) for the electrical converter based on a sum of the estimated flux (ψi) and the corrective flux (ψi,damp); controlling the converter with the control input signals (u); and algorithmic filtering of at least one of the output signals (y) by applying a signal filter to the at least one output signal, which is designed for amplifying the at least one output signal at a resonance frequency of the filter, whereby the corrective flux (ψi,damp) is determined from the filtered output signals.

Abstract translation: 电转换器经过滤波器与电负载或电源相互连接。 一种用于控制转换器的方法包括以下步骤：接收电转换器的参考通量（ψ* i）; 确定包括在所述滤波器中测量的电流和/或电压的输出信号（y） 从所述输出信号（y）确定估计通量（ψi）; 基于滤波器的数学模型和二次成本函数，从输出信号（y）确定校正通量（ψi，潮湿）; 基于估计通量（ψi）和校正通量（ψi，潮湿）的和来确定电转换器的控制输入信号（u）; 用控制输入信号（u）控制转换器; 以及通过对所述至少一个输出信号施加信号滤波器来对所述输出信号（y）中的至少一个进行算法滤波，所述至少一个输出信号被设计用于以所述滤波器的谐振频率放大所述至少一个输出信号，由此所述校正通量 （ψi，潮湿）由滤波的输出信号确定。