公开(公告)号：US09837931B2

公开(公告)日：2017-12-05

申请号：US15307809

申请日：2014-09-15

申请人： Hunan University ,  Changsha Boli Electric Corporation

发明人： An Luo ,  Yandong Chen ,  Mingyue Wang ,  Qingchang Zhong ,  Leming Zhou ,  Yuan Huang ,  Zhiyong Chen ,  Xiaoping Zhou ,  Huimin Kuang ,  Mingshen Li

IPC分类号： H02J3/48 ,  H02M7/5387 ,  H02J3/38 ,  H02M7/5395 ,  H02M1/12 ,  H02M7/48

CPC分类号： H02M7/53871 ,  H02J3/38 ,  H02J3/48 ,  H02M1/126 ,  H02M7/5395 ,  H02M2007/4815 ,  Y02B70/1441

摘要： A steady state control method for a three-phase double-mode inverter. Off-grid steady state control is composed of outer loop power droop control, voltage feed-forward quasi-resonant control, and inner current loop dead-beat control. Therefore, the response speed of the inverter is raised, and the influence caused by the load fluctuation of a micro-grid is inhibited. Based on the off-grid steady state control, grid-connected steady state control introduces phase lead control to the power droop control. Therefore, the output voltage of the inverter is always slightly ahead of the power grid voltage, which avoids the energy pour backward phenomenon of the inverter due to a phase error, and realizes stable and reliable running in the grid-connected mode.

公开(公告)号：US20170047862A1

公开(公告)日：2017-02-16

申请号：US15307809

申请日：2014-09-15

申请人： Hunan University ,  Changsha Boli Electric Corporation

发明人： An Luo ,  Yandong Chen ,  Mingyue Wang ,  Qingchang Zhong ,  Leming Zhou ,  Yuan Huang ,  Zhiyong Chen ,  Xiaoping Zhou ,  Huimin Kuang ,  Mingshen Li

IPC分类号： H02M7/537 ,  H02M1/12

CPC分类号： H02M7/53871 ,  H02J3/38 ,  H02J3/48 ,  H02M1/126 ,  H02M7/5395 ,  H02M2007/4815 ,  Y02B70/1441

摘要： A steady state control method for a three-phase double-mode inverter. Off-grid steady state control is composed of outer loop power droop control, voltage feed-forward quasi-resonant control, and inner current loop dead-beat control. Therefore, the response speed of the inverter is raised, and the influence caused by the load fluctuation of a micro-grid is inhibited. Based on the off-grid steady state control, grid-connected steady state control introduces phase lead control to the power droop control. Therefore, the output voltage of the inverter is always slightly ahead of the power grid voltage, which avoids the energy pour backward phenomenon of the inverter due to a phase error, and realizes stable and reliable running in the grid-connected mode.

摘要翻译： 一种三相双模逆变器的稳态控制方法。 离网稳态控制由外环功率下垂控制，电压前馈准谐振控制和内部电流环路死区控制组成。 因此，逆变器的响应速度提高，并且微小电网的负载波动引起的影响被抑制。 基于离网稳态控制，并网稳态控制将相位牵引控制引入功率下降控制。 因此，逆变器的输出电压总是略高于电网电压，避免了由于相位误差引起的逆变器的能量倒退现象，实现了并网模式下稳定可靠的运行。