PROCESS OF OPERATION FOR A LOCAL ELECTRIC POWER SOURCE

The invention relates to a process of operation of a local electric power source (1) connected to a branch of an electric power system (2) in which at least one local user (3) is present. According to the invention, the process aims to enable the priority use of the local source (1) for satisfying the needs of users (3), to the detriment of the electric power system (2), and it consists of the following steps: determining the consumption characteristics of the users (3), expressed as absorbed current harmonics, establishing, based on a logic which takes into account the characteristics of the source (1) and of an inverter (4) connected to the source (1) and to the electric power system (2), which consumption components can be supported locally, and injecting current into a branch point (5), according to the components established during the previous step, thereby relieving the electric power system (1) of the supply of a part of the active, reactive and deformed power requested by the users (3). Invenţia se referă la un procedeu de operare a unei surse (1) locale de energie electrică, conectată la o derivaţie a unei reţele (2) electrice în care este prezent cel puţin un consumator (3) local. Procedeul conform invenţiei urmăreşte folosirea cu prioritate a sursei (1) locale faţă de reţeaua (2) electrică, pentru asigurarea nevoilor de consum ale consumatorilor (3), şi cuprinde următorii paşi: se determină caracteristicile de consum ale consumatorilor (3), exprimate în termenii armonicilor curentului absorbit, se stabileşte, pe baza unei logici care ţine seama de caracteristicile sursei (1) şi ale unui invertor (4) conectat la sursă (1), cât şi la reţeaua (2) electrică, ce componente ale acestui consum pot fi suportate local, şi se injectează curent într-un nod de conexiune (5), conform componentelor stabilite la pasul anterior, degrevând astfel reţeaua (1) electrică de furnizarea unei părţi din puterea activă, reactivă şi deformantă solicitată de consumatori (3).