公开(公告)号：WO1998004031A1

公开(公告)日：1998-01-29

申请号：PCT/US1997011994

申请日：1997-07-16

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  NGUYEN, Vietson, M. ,  TSAI, Shan-Chin

IPC: H02M07/538

CPC classification number: H02M7/53803 ,  H02M7/53871 ,  H02M7/539

Abstract: An inverter system (10) in accordance with the invention includes an electrical load (R, L) having a direct current source (E) for providing direct current to at least one pair of inverter switches (Q1 and Q2) with the at least one pair of switches being switched between conducting and non-conducting states to control a direction of flow of current pulses between the direct current source and the electrical load to cause the flow of alternating current through the electrical load; a source of a voltage reference (Vref) representing a desired form of the alternating current to flow through the electrical load; an error control signal generator (24) having a first input coupled to the electrical load and a second input coupled to the voltage reference for generating on an output (26) an error control voltage representing a difference between the first and second inputs; and an inverter controller (16), coupled to the output of the error control signal generator and to the inverter, for controlling a frequency of switching of the at least one pair of switches in response to the error control voltage to produce current pulses flowing through the electrical load occurring at a variable frequency which provides the alternating current flow through the electrical load.

Abstract translation: 根据本发明的逆变器系统（10）包括具有用于向至少一对逆变器开关（Q1和Q2）提供直流电流的直流电源（E）的电负载（R，L），所述至少一个逆变器开关 一对开关在导通状态和非导通状态之间切换，以控制直流电源和电负载之间的电流脉冲的流动方向，以使交流电流流过电负载; 表示期望形式的交流电流流经电负载的电压基准源（Vref）; 误差控制信号发生器（24），其具有耦合到所述电负载的第一输入和耦合到所述电压参考的第二输入，用于在输出（26）上产生表示所述第一和第二输入之间的差的误差控制电压; 以及逆变器控制器（16），其耦合到所述误差控制信号发生器和所述逆变器的输出端，用于响应于所述误差控制电压来控制所述至少一对开关的开关频率，以产生流过的电流脉冲 以可变频率发生的电负载，其提供通过电负载的交流电流。

公开(公告)号：EP0914709A1

公开(公告)日：1999-05-12

申请号：EP97934911.0

申请日：1997-07-16

Applicant: SUNDSTRAND CORPORATION

Inventor： NGUYEN, Vietson, M. ,  TSAI, Shan-Chin

IPC: H02M7

CPC classification number: H02M7/53803 ,  H02M7/53871 ,  H02M7/539

Abstract: An inverter system (10) in accordance with the invention includes an electrical load (R, L) having a direct current source (E) for providing direct current to at least one pair of inverter switches (Q1 and Q2) with the at least one pair of switches being switched between conducting and non-conducting states to control a direction of flow of current pulses between the direct current source and the electrical load to cause the flow of alternating current through the electrical load; a source of a voltage reference (Vref) representing a desired form of the alternating current to flow through the electrical load; an error control signal generator (24) having a first input coupled to the electrical load and a second input coupled to the voltage reference for generating on an output (26) an error control voltage representing a difference between the first and second inputs; and an inverter controller (16), coupled to the output of the error control signal generator and to the inverter, for controlling a frequency of switching of the at least one pair of switches in response to the error control voltage to produce current pulses flowing through the electrical load occurring at a variable frequency which provides the alternating current flow through the electrical load.