公开(公告)号：US09450479B2

公开(公告)日：2016-09-20

申请号：US14627041

申请日：2015-02-20

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Duro Basic ,  Mathieu Giroux

IPC: H02M1/12 ,  H02M1/14 ,  H02M7/5387 ,  H02M7/539

CPC classification number: H02M1/12 ,  H02M7/493 ,  H02M7/539 ,  H02M2001/0025 ,  H02M2001/123

Abstract: Provided is an approach for active control of cross currents flowing among multiple paralleled converters. Control of cross currents is achieved by using at least one proportional-integral (PI) controller and at least one resonant controller to target several selected dominant harmonics with infinite gains to ensure elimination of targeted harmonic cross currents in steady state. The cross currents are decomposed by into (1) common mode and differential mode components or (2) current phase domain components and each component is suppressed to a value approximately near zero using the controller. Also provided is a device comprises instructions, that, when executed by a processor, cause the processor to perform operations, which regulate and suppress cross current within a power system.

Abstract translation: 提供了一种用于主动控制在多个并联转换器之间流动的交叉电流的方法。 通过使用至少一个比例积分（PI）控制器和至少一个谐振控制器来实现交叉电流的控制，以无限增益来对多个选定的主谐波，以确保在稳态下消除目标谐波交叉电流。 交叉电流分为（1）共模和差模分量，或者（2）电流相位分量，并且使用控制器将每个分量抑制到接近零的值。 还提供了一种装置，其包括指令，当由处理器执行时，使处理器执行调节和抑制电力系统内的交叉电流的操作。

公开(公告)号：US20160248315A1

公开(公告)日：2016-08-25

申请号：US14627041

申请日：2015-02-20

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Duro Basic ,  Mathieu Giroux

IPC: H02M1/12 ,  H02M7/539

CPC classification number: H02M1/12 ,  H02M7/493 ,  H02M7/539 ,  H02M2001/0025 ,  H02M2001/123

Abstract: Provided is an approach for active control of cross currents flowing among multiple paralleled converters. Control of cross currents is achieved by using at least one proportional-integral (PI) controller and at least one resonant controller to target several selected dominant harmonics with infinite gains to ensure elimination of targeted harmonic cross currents in steady state. The cross currents are decomposed by into (1) common mode and differential mode components or (2) current phase domain components and each component is suppressed to a value approximately near zero using the controller. Also provided is a device comprises instructions, that, when executed by a processor, cause the processor to perform operations, which regulate and suppress cross current within a power system.

Abstract translation: 提供了一种用于主动控制在多个并联转换器之间流动的交叉电流的方法。 通过使用至少一个比例积分（PI）控制器和至少一个谐振控制器来实现交叉电流的控制，以无限增益来对多个选定的主谐波，以确保在稳态下消除目标谐波交叉电流。 交叉电流分为（1）共模和差分模式分量，或（2）电流相位分量，并且使用控制器将每个分量抑制到接近零的值。 还提供了一种装置，其包括指令，当由处理器执行时，使处理器执行调节和抑制电力系统内的交叉电流的操作。

公开(公告)号：US10090776B2

公开(公告)日：2018-10-02

申请号：US15408443

申请日：2017-01-18

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Duro Basic ,  Kai Alexander Rothenhagen

IPC: H02M7/48 ,  H02M1/32 ,  H02M1/084 ,  H02M7/5387 ,  H02M1/00

Abstract: A method is disclosed to protect a power converter arrangement with a power converter that has a DC side that is connected to a DC intermediate circuit, an AC side, and controllable switches that can be controllably switched at a high frequency to invert the DC voltage of the DC intermediate circuit into an AC voltage. A protective device that can be activated and deactivated is provided to protect the power converter from overload by connecting an external thyristor rectifier bridge with a brake resistor (Rb ext) to the AC side of the power converter. If a predetermined error situation is detected, the external thyristors are triggered to turn on, to activate the protective device. If it is detected that the predetermined error situation has disappeared, the external thyristors are turned off. A power converter arrangement with a device to protect against overload is also disclosed.

公开(公告)号：US09590483B1

公开(公告)日：2017-03-07

申请号：US14883915

申请日：2015-10-15

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Duro Basic

IPC: H02M5/22 ,  H02M1/088 ,  G01R29/18 ,  H02M1/00

CPC classification number: H02M1/088 ,  G01R29/18 ,  H02J3/1842 ,  H02J3/1857 ,  H02M1/4233 ,  H02M5/22 ,  H02M7/483 ,  H02M2001/0003 ,  H02M2001/0009 ,  H02M2001/0016 ,  H02M2007/4835 ,  Y02E40/16 ,  Y02E40/22 ,  Y02E40/26

Abstract: An optimized structure of an arm capacitor voltage balance controller based on chain links of the H-bridge module that achieves enhanced performance of an arm capacitor voltage balance control in all operational conditions, even with highly dynamic loads. Such a controller has application in three-phase STATCOM converters, and may be structured so as to seamlessly integrate feedforward and feedback controls with inverse maps used for calculation of the zero sequence reference voltage injection(s) (for star and delta STATCOM topologies).

Abstract translation: 基于H桥模块链路的臂电容电压平衡控制器的优化结构，即使在高动态负载下，在所有操作条件下也能实现臂电容器电压平衡控制的性能提升。 这种控制器具有应用于三相STATCOM转换器中，并且可以被构造成将前馈和反馈控制与用于计算零序参考电压注入（用于星型和三角洲STATCOM拓扑）的逆映射无缝集成。