公开(公告)号：WO2004038196A2

公开(公告)日：2004-05-06

申请号：PCT/US0333019

申请日：2003-10-17

Applicant: HONEYWELL INT INC

Inventor： XU MINGZHOU ,  ANGHEL CRISTIAN E ,  LENGEL JIM ,  YAO YUAN ,  PEARSON WAYNE T

IPC: F02C7/268 ,  F02N11/04 ,  F02C

CPC classification number: F02C7/268 ,  F02N11/04

Abstract: A rotating electrical machine, such as an aircraft starter-generator, that includes an exciter that has its stator windings supplied with electrical power from a power supply. One or more switches are electrically coupled between the exciter stator winding and the power supply and are configured and controlled so that a capacitance may be selectively placed electrically in series with the exciter stator windings.

Abstract translation: 旋转电机，例如飞机起动器 - 发电机，其包括其定子绕组从电源供应电力的励磁机。 一个或多个开关电耦合在励磁机定子绕组和电源之间，并且被配置和控制，使得电容可以选择性地与励磁机定子绕组串联放置。

公开(公告)号：WO02071569A2

公开(公告)日：2002-09-12

申请号：PCT/US0203646

申请日：2002-02-07

Applicant: HONEYWELL INT INC

Inventor： YAO YUAN ,  MALICKI WALLY

IPC: H02P9/10 ,  H02J7/00

CPC classification number: H02P9/102 ,  H02P2101/30

Abstract: A generator control unit (200) includes a field current modulator (212) that repeatedly switches between an ON state and an OFF state to control the flow of field current to the generator (20), a free-wheeling path (216) that feeds excitation current from the generator (20) back to the generator (20) as a field current component when the field current modulator (212) is in the OFF state, and an impedance circuit (220) that selectively and temporarily absorbs excitation current in the free-wheeling path (216) to reduce voltage overshoot of the generator (20) upon occurrence of an operating transition, such as a transistor from high load to low load. In one implementation, the circuit (220) is an RC circuit and a by-pass switch (222) is provided across the RC circuit. When excitation current in the free-wheeling path (216) is not to be absorbed by the RC circuit, the by-pass switch (222) is ON, thereby providing a low-impedance path for the excitation current. A by-pass driver (230) controls the by-pass switch (222) to change the by-pass switch (222) from ON to OFF based on one or more detection signals, e.g., indicating a load transition or power-up, thereby introducing the impedance circuit (220) into the free-wheeling path (216) to effect decay of the excitation current from the generator (20).

Abstract translation: 发电机控制单元（200）包括励磁电流调制器（212），其在ON状态和OFF状态之间重复地切换以控制到发电机（20）的励磁电流的流动;馈送路径（216） 当场电流调制器（212）处于截止状态时，从发生器（20）返回到发电机（20）的励磁电流作为励磁电流分量;以及阻抗电路（220），其选择性地暂时地吸收励磁电流 续流路径（216），以在发生诸如从高负载到低负载的晶体管的操作转变时减小发电机（20）的电压过冲。 在一个实现中，电路（220）是RC电路，并且跨RC电路提供旁路开关（222）。 当再循环路径（216）中的励磁电流不被RC电路吸收时，旁路开关（222）导通，从而为励磁电流提供低阻抗路径。 旁路驱动器（230）控制旁路开关（222），以基于一个或多个检测信号（例如，指示负载转换或上电）来将旁路开关（222）从ON切换到OFF， 从而将阻抗电路（220）引入续流路径（216）以实现来自发电机（20）的激励电流的衰减。