公开(公告)号：US20160276919A1

公开(公告)日：2016-09-22

申请号：US15169336

申请日：2016-05-31

Applicant: ABB Technology AG

Inventor： Tobias Geyer ,  Nikolaos Oikonomou ,  Georgios Papafotiou

IPC: H02M1/08 ,  H02M7/04 ,  H02M7/44 ,  H02M1/12

CPC classification number: H02M1/08 ,  H02M7/04 ,  H02M7/44 ,  H02M7/539 ,  H03K5/08

Abstract: A method for controlling an electrical converter comprises the acts of determining an error value based on a difference between an estimated output value and a reference output value, the estimated output value being based on measurements in the electrical converter; comparing the error value with an error band and in the case of the error value exceeds the error band, controlling the electrical converter by switching to a different control scheme. The converter is controlled with the modified pre-calculated switching by determining a pre-calculated switching sequence for the converter based on an actual state of the electrical converter, the switching sequence comprising a sequence of switching transitions of the converter; modifying the pre-calculated switching sequence by modifying transition times of switching transitions of the pre-calculated switching sequence, such that the error value is minimized; and applying at least a part of the modified switching sequence to the electrical converter.

Abstract translation: 一种用于控制电转换器的方法包括基于估计的输出值和参考输出值之间的差来确定误差值的动作，所估计的输出值基于电转换器中的测量; 将误差值与误差带进行比较，并且在误差值超过误差带的情况下，通过切换到不同的控制方案来控制电转换器。 通过基于电转换器的实际状态确定转换器的预先计算的切换顺序来控制转换器，该切换序列包括转换器的切换转换序列; 通过修改预先计算的切换序列的切换转换的转换时间来修改预先计算的切换序列，使得误差值最小化; 以及将修改的开关序列的至少一部分应用于所述电转换器。

公开(公告)号：US09806595B2

公开(公告)日：2017-10-31

申请号：US15169336

申请日：2016-05-31

Applicant: ABB Technology AG

Inventor： Tobias Geyer ,  Nikolaos Oikonomou ,  Georgios Papafotiou

IPC: H02M1/08 ,  H03K5/08 ,  H02M7/539 ,  H02M7/04 ,  H02M7/44

CPC classification number: H02M1/08 ,  H02M7/04 ,  H02M7/44 ,  H02M7/539 ,  H03K5/08

Abstract: A method for controlling an electrical converter comprises the acts of determining an error value based on a difference between an estimated output value and a reference output value, the estimated output value being based on measurements in the electrical converter; comparing the error value with an error band and in the case of the error value exceeds the error band, controlling the electrical converter by switching to a different control scheme. The converter is controlled with the modified pre-calculated switching by determining a pre-calculated switching sequence for the converter based on an actual state of the electrical converter, the switching sequence comprising a sequence of switching transitions of the converter; modifying the pre-calculated switching sequence by modifying transition times of switching transitions of the pre-calculated switching sequence, such that the error value is minimized; and applying at least a part of the modified switching sequence to the electrical converter.

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。