Importance

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Abstract

A DC power-generation array system (30) is made up of an array (32) of power-generation cells (36) arranged as N strings (38) of M cells (36) each. The system (30) incorporates an integral control apparatus (34) having N string units (52) and a single process unit (54). Each string unit (52) is coupled to one of the strings (38), and is made up of monitor module (72) to measure a string current (I.sub.S(X)) through that string (38), and a switching module (74) to switch that string (38) into and out of the array (32). The process unit (54) is made up of a processor (90) to evaluate the string currents (I.sub.S(X), and a data I/O module (98) to provide a remote monitoring and control of the system (30). The system (30) also has an interface unit (92) to provide local monitoring and control of the system (30). The processor (90) causes the switching modules (74) to couple or decouple strings (38) from array (32) under automatic, remote, and/or local control.

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First Claim