Invention Grant
- Patent Title: Voltage-sensed system and method for anti-islanding protection of grid-connected inverters
- Patent Title (中): 并网逆变器防孤岛保护电压检测系统及方法
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Application No.: US13050592Application Date: 2011-03-17
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Publication No.: US08423312B2Publication Date: 2013-04-16
- Inventor: Philip T. Krein
- Applicant: Philip T. Krein
- Applicant Address: US TX Austin
- Assignee: SolarBridge Technologies, Inc.
- Current Assignee: SolarBridge Technologies, Inc.
- Current Assignee Address: US TX Austin
- Agency: Barnes & Thornburg LLP
- Main IPC: G06F13/20
- IPC: G06F13/20
Abstract:
A method is provided for preventing islanding of a power source connected to an electric AC grid via an interface. The method senses an output voltage waveform of the interface, controls an output current waveform of the interface to track a reference current waveform having a mathematical relationship with the sensed output voltage waveform, and discontinues the output current waveform when the output voltage waveform is sensed to be outside a predetermined waveform range.
Public/Granted literature
- US20110164440A1 VOLTAGE-SENSED SYSTEM AND METHOD FOR ANTI-ISLANDING PROTECTION OF GRID-CONNECTED INVERTERS Public/Granted day:2011-07-07
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