公开(公告)号：US20130223113A1

公开(公告)日：2013-08-29

申请号：US13860993

申请日：2013-04-11

Applicant: Xantrex Technology, Inc.

Inventor： Richard T. West

IPC: H02M7/44

CPC classification number: H02M7/44 ,  H02H3/16 ,  H02H7/1222 ,  H02H7/20 ,  H02J3/38 ,  H02J3/383 ,  Y02E10/56 ,  Y02E10/563

Abstract: An electrical power converter for converting power from a bipolar DC source to supply an AC load is disclosed. For one such embodiment the bipolar DC source is a photovoltaic array and the AC power is sourced into an electric power grid. The bipolar photovoltaic array has positive and negative voltage potentials with respect to earth ground. The converter is a utility interactive inverter which does not require an isolation transformer at the electric power grid interface. Embodiments of the invention include methods of detecting and interrupting DC ground faults in the photovoltaic array.

Abstract translation: 公开了一种用于将来自双极型直流电源的电力转换为提供交流负载的电力转换器。 对于一个这样的实施例，双极性直流电源是光伏阵列，并且AC电力来源于电力网。 双极光伏阵列相对于地面具有正和负电压电位。 该转换器是一种实用的交互式逆变器，在电力电网接口上不需要隔离变压器。 本发明的实施例包括检测和中断光伏阵列中的DC接地故障的方法。

公开(公告)号：US08760826B2

公开(公告)日：2014-06-24

申请号：US13860993

申请日：2013-04-11

Applicant: Xantrex Technology, Inc.

Inventor： Richard T. West

IPC: H02H3/00

CPC classification number: H02M7/44 ,  H02H3/16 ,  H02H7/1222 ,  H02H7/20 ,  H02J3/38 ,  H02J3/383 ,  Y02E10/56 ,  Y02E10/563

Abstract: An electrical power converter for converting power from a bipolar DC source to supply an AC load is disclosed. For one such embodiment the bipolar DC source is a photovoltaic array and the AC power is sourced into an electric power grid. The bipolar photovoltaic array has positive and negative voltage potentials with respect to earth ground. The converter is a utility interactive inverter which does not require an isolation transformer at the electric power grid interface. Embodiments of the invention include methods of detecting and interrupting DC ground faults in the photovoltaic array.

Abstract translation: 公开了一种用于将来自双极型直流电源的电力转换为提供交流负载的电力转换器。 对于一个这样的实施例，双极性直流电源是光伏阵列，并且AC电力来源于电力网。 双极光伏阵列相对于地面具有正和负电压电位。 该转换器是一种实用的交互式逆变器，在电力电网接口上不需要隔离变压器。 本发明的实施例包括在光伏阵列中检测和中断DC接地故障的方法。