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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
技術領域
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

The foregoing and/or other aspects will become apparent from the following detailed description when considered in conjunction with the accompanying drawing figures.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of this specification, exemplify embodiments of the present invention and, together with the description, serve to explain and illustrate principles of the invention. The drawings are intended to illustrate various features of the illustrated embodiments in a diagrammatic manner. The drawings are not intended to depict every feature of actual embodiments nor relative dimensions of the depicted elements, and are not necessarily drawn to scale.

The invention is herein described, by way of example only, with reference to the accompanying drawings, wherein:

FIG. 1 is a block diagram of a conventional power harvesting system using photovoltaic panels as DC power sources;

FIG. 1B illustrates current versus voltage characteristic curves for one serial string the DC power sources of FIG. 1;

FIG. 2 is a simplified block diagram illustrating a distributed power harvesting circuit, based on the disclosure in U.S. application Ser. No. 11/950,271, according to an aspect of the present invention;

FIG. 2A is a simplified block diagram of a DC-to-DC converter, including a feature of the present invention;

權利要求

1
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