Invention Grant
US08395919B2 Photovoltaic inverter system and method of starting same at high open-circuit voltage
有权
光伏逆变器系统及其在高开路电压下启动的方法
- Patent Title: Photovoltaic inverter system and method of starting same at high open-circuit voltage
- Patent Title (中): 光伏逆变器系统及其在高开路电压下启动的方法
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Application No.: US12845802Application Date: 2010-07-29
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Publication No.: US08395919B2Publication Date: 2013-03-12
- Inventor: Stefan Schroeder , Jie Shen , Said Farouk Said El-Barbari , Robert Roesner
- Applicant: Stefan Schroeder , Jie Shen , Said Farouk Said El-Barbari , Robert Roesner
- Applicant Address: US NY Niskayuna
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Niskayuna
- Agent Ann M. Agosti
- Main IPC: H02M7/537
- IPC: H02M7/537
Abstract:
A power inverter system includes a DC to AC inverter configured to convert DC voltage from a DC power source to AC voltage. A DC link couples the DC power source and the inverter. An inverter pre-charger operates to pre-charge the inverter to achieve a desired DC link voltage prior to connecting the power inverter system to an AC power grid. A phased lock loop synchronizes the pre-charged inverter to the AC power grid prior to connecting the power inverter system to the AC power grid. The pre-charged inverter regulates the DC link voltage to about the minimum voltage level that allows control of AC grid currents via the inverter subsequent to connecting the power inverter system to the AC grid. The inverter operates in a maximum power point tracking control mode only subsequent to a first voltage transient caused by connecting the DC power source to energize the power inverter system.
Public/Granted literature
- US20120026769A1 PHOTOVOLTAIC INVERTER SYSTEM AND METHOD OF STARTING SAME AT HIGH OPEN-CIRCUIT VOLTAGE Public/Granted day:2012-02-02
Information query
IPC分类:
