公开(公告)号：WO2014031401A2

公开(公告)日：2014-02-27

申请号：PCT/US2013054856

申请日：2013-08-14

Applicant: CARRIER CORP

Inventor： PERDIKAKIS WILLIAM ,  ZHANG DA ,  GIETZOLD THOMAS

IPC: H02M7/537

CPC classification number: H02M7/5395 ,  H02M2001/0006 ,  H02M2007/53876 ,  H02P6/14 ,  H02P27/08

Abstract: Embodiments relate to systems and methods for space vector pulse width modulation switching using bootstrap charging circuits. Platforms and techniques are provided for controlling a power inverter using space vector pulse width modulation (PWM) operation. The inverter converts a direct voltage (DC) power source to alternating voltage (AC) output by controlling a set of three phase switches. A bootstrap capacitor is coupled to each switch. When each switch in the set of three phase switches is in a zero state, the coupled bootstrap capacitor can charge from the current delivered in a corresponding pulse width modulation (PWM) signal. The bootstrap capacitor can deliver stored power when a one (high) switch state is entered. Each switch can be maintained at a zero state, and thus charge the bootstrap capacitor, for at least two consecutive segments of the PWM cycle. Pre-charging of the bootstrap capacitor is ensured before power delivery is required.

Abstract translation: 实施例涉及使用自举充电电路的空间矢量脉宽调制切换的系统和方法。 提供了使用空间矢量脉宽调制（PWM）操作来控制功率逆变器的平台和技术。 逆变器通过控制一组三相开关将直流（DC）电源转换为交流电压（AC）输出。 自举电容器耦合到每个开关。 当三相开关组中的每个开关处于零状态时，耦合的自举电容器可以从相应的脉冲宽度调制（PWM）信号中传送的电流充电。 当输入一个（高）开关状态时，自举电容器可以传送存储的电力。 每个开关可以保持在零状态，并且因此为自举电容充电至少两个PWM周期的连续段。 在需要供电之前确保自举电容器的预充电。

公开(公告)号：WO2014182679A2

公开(公告)日：2014-11-13

申请号：PCT/US2014036938

申请日：2014-05-06

Applicant: CARRIER CORP

Inventor： ZHANG DA ,  PANDZIK RICHARD T ,  PERDIKAKIS WILLIAM ,  ROLLINS MARK E

IPC: F04C18/02

CPC classification number: F04C18/0223 ,  F04B49/06 ,  F04B49/10 ,  F04C18/0215 ,  F04C23/008 ,  F04C23/02 ,  F04C28/06 ,  F04C28/08 ,  F04C28/28 ,  F04C2270/0525 ,  F04C2270/701

Abstract: A method for expulsion of a fluid inside a compressor at start-up including the steps: applying a first signal to the motor rotor windings for a first duration of time to align the motor rotor to the initial position; applying a second signal to the motor rotor windings to start rotation of the compressor shaft; applying a third signal to the motor rotor windings for a second duration of time to hold the compressor shaft in place; and applying a fourth signal to the motor rotor windings to accelerate the motor to an operational speed.

Abstract translation: 一种在启动时排出压缩机内的流体的方法，包括以下步骤：将第一信号施加到电动机转子绕组一段时间以将电动机转子对准到初始位置; 向所述电动机转子绕组施加第二信号以开始所述压缩机轴的旋转; 将第三信号施加到电动机转子绕组第二持续时间以将压缩机轴保持在适当位置; 以及将第四信号施加到所述电动机转子绕组以将所述电动机加速到操作速度。

公开(公告)号：WO2013016505A2

公开(公告)日：2013-01-31

申请号：PCT/US2012048284

申请日：2012-07-26

Applicant: CARRIER CORP ,  ZHANG DA ,  GIETZOLD THOMAS ,  VARIGONDA SUBBARAO ,  OZTURK SALIH BARIS

Inventor： ZHANG DA ,  GIETZOLD THOMAS ,  VARIGONDA SUBBARAO ,  OZTURK SALIH BARIS

IPC: B60W10/08

CPC classification number: H02P6/205 ,  H02P1/46 ,  H02P6/21 ,  H02P21/18 ,  H02P21/26 ,  H02P21/32 ,  H02P21/34

Abstract: A method of conducting smooth motor startup is provided and includes operating a motor in an open loop control scheme at startup, operating the motor in a closed loop sensorless control scheme at a time after startup and transitioning between the open loop control scheme and the closed loop control scheme by reducing a difference between an estimated rotor angle of the motor and a commanded ramping angle of the motor.

Abstract translation: 提供了一种进行平稳电机启动的方法，并且包括在启动时以开环控制方案操作电机，在启动之后的时间以闭环无传感器控制方案操作电机，并且在开环控制方案和闭环之间转换 通过减小电动机的估计转子角度与电动机的命令斜坡角度之间的差异来控制电动机控制方案。