公开(公告)号：US09614364B2

公开(公告)日：2017-04-04

申请号：US13885686

申请日：2011-10-31

申请人： Biyao Huang ,  Jianqi Li ,  Guojun Liu ,  Zhihui Wang ,  Nan Quan ,  Xiaofeng Qu ,  Tao Zhao ,  Licheng Wang

发明人： Biyao Huang ,  Jianqi Li ,  Guojun Liu ,  Zhihui Wang ,  Nan Quan ,  Xiaofeng Qu ,  Tao Zhao ,  Licheng Wang

IPC分类号： H02J3/08 ,  H02H3/38 ,  H02H1/00 ,  H02H7/28 ,  H02J3/38 ,  H02J13/00

CPC分类号： H02H3/38 ,  H02H1/0061 ,  H02H7/28 ,  H02J3/38 ,  H02J13/0051 ,  H02J2003/388 ,  Y02B90/263 ,  Y02E40/72 ,  Y02E60/723 ,  Y02E60/725 ,  Y02E60/783 ,  Y02P80/14 ,  Y04S10/12 ,  Y04S10/16 ,  Y04S10/20 ,  Y04S40/123

摘要： A detection system of distributed generation islanding based on power frequency carrier, the detection system comprising: a power frequency carrier signal generating device; a power frequency carrier signal detection device; a signal coupling transformer; a substation bus; a distribution power generator (DG); and a safety isolation breaker, wherein the power frequency carrier signal generating device comprises a voltage and current monitor circuit, the power frequency carrier signal generating device is connected with the signal coupling transformer through four three phase four line power cables, and the signal coupling transformer is connected with substation bus through 3 power cables.

公开(公告)号：US20140146427A1

公开(公告)日：2014-05-29

申请号：US13885686

申请日：2011-10-31

申请人： Biyao Huang ,  Jianqi Li ,  Guojun Liu ,  Zhihui Wang ,  Nan Quan ,  Xiaofeng Qu ,  Tao Zhao ,  Licheng Wang

发明人： Biyao Huang ,  Jianqi Li ,  Guojun Liu ,  Zhihui Wang ,  Nan Quan ,  Xiaofeng Qu ,  Tao Zhao ,  Licheng Wang

IPC分类号： H02H3/38

CPC分类号： H02H3/38 ,  H02H1/0061 ,  H02H7/28 ,  H02J3/38 ,  H02J13/0051 ,  H02J2003/388 ,  Y02B90/263 ,  Y02E40/72 ,  Y02E60/723 ,  Y02E60/725 ,  Y02E60/783 ,  Y02P80/14 ,  Y04S10/12 ,  Y04S10/16 ,  Y04S10/20 ,  Y04S40/123

摘要： This present inversion relates to a detection system and detection method of distributed generation islanding based on power frequency carrier. The system includes a power frequency carrier signal generating device near the terminal power distribution substation, a power frequency carrier signal detection device in distributed power grid; the power frequency carrier signal generating device is connected to the substation bus through a signal coupling transformer; the power frequency carrier signal generating device is connected with signal coupling transformer though phase A, B C live wires and the N middle wire, that results in the signal can be send by anyone signal phase, any two phases parallel way or three phases parallel way. The power frequency carrier signal detection device is connected with the low voltage power network though phase A, B and C live wires and the N middle wire. The system of distributed generation islanding detection based on power frequency carrier has low cost of implementation advantage and the test methods to meet the requirements of relevant standards. The present invention provides an effective method for islanding signal detection of distributed generation and micro-grid signal, anti-islanding protection. There is very high technical and economic performance applying the distribution network under high permeability condition.

摘要翻译： 本反演涉及基于功率载波的分布式发电孤岛的检测系统和检测方法。 该系统包括终端配电站附近的功率载频信号发生装置，分布式电网中的工频载波信号检测装置， 电力载波信号发生装置通过信号耦合变压器连接到变电站总线; 电力载波信号发生装置通过A相，B C线和N线连接信号耦合变压器，使信号可以由任何信号相，任意两相并联或三相并联发送。 工频载波信号检测装置通过A，B，C线和N线连接低压电网。 基于电力载波的分布式孤岛检测系统具有较低的实施成本优势和符合相关标准要求的测试方法。 本发明提供了分散式发电和微电网信号孤岛信号检测的有效方法，防孤岛保护。 在高渗透条件下应用配送网络具有非常高的技术和经济性能。