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Safety mechanisms, wake up and shutdown methods in distributed power installations

專利號
US11888387B2
公開日期
2024-01-30
申請人
Solaredge Technologies, Ltd（IL Herzeliya）
發(fā)明人
Meir Adest; Guy Sella; Lior Handelsman; Yoav Galin; Amir Fishelov; Meir Gazit; Yaron Binder
IPC分類
H02J1/00; H02M1/32; H02M3/158; G01S3/786; H01L31/02; H02H3/20; H02J1/10; H02J3/46; H02M7/493; H04B3/54; H02J3/38; H02J7/35; H02M1/00
技術(shù)領(lǐng)域
inverter,power,string,voltage,islanding,grid,converter,in,signal,output
地域： Herzliya Pituah

摘要

A distributed power system including multiple DC power sources and multiple power modules. The power modules include inputs coupled respectively to the DC power sources and outputs coupled in series to form a serial string. An inverter is coupled to the serial string. The inverter converts power input from the serial string to output power. A signaling mechanism between the inverter and the power module is adapted for controlling operation of the power modules. Also, for a protection method in the distributed power system, when the inverter stops production of the output power, each of the power modules is shut down and thereby the power input to the inverter is ceased.

說明書

System 20 includes converters 205 which are connected in series and carry the current from string 203. If a failure in one of the serially connected converters 205 causes an open circuit in failed converter 205, current ceases to flow through the entire string 203 of converters 205, thereby causing system 20 to stop functioning. Aspects of the present invention provide a converter circuit 205 in which electrical components have one or more bypass routes associated with them that carry the current in case of an electrical component failing within one of converters 205. For example, each switching transistor of either the buck or the boost portion of the converter has its own diode bypass. Also, upon failure of inductor 308, the current bypasses the failed inductor 308 through parasitic diodes 344,346.

In FIG. 3, detector/receiver block 207 is shown which is configured to provide an enable signal 209 to microcontroller 306 when the communications signal originating in inverter 104,204 is detected.

權(quán)利要求

1
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