Automatic control system of power supply of active consumers

Abstract

Power industry development and availability of the Smart Grig concept presuppose intellectualization of power supply systems, Microgrid development and emerging of active consumers' class, which stipulates the development of automatic control of active consumers' power supply. The system will be a technical basis for a universal customer-grid interface. The paper proposes an architecture for such a control system based on typical intellectual electronic devices (IED) and connection channels in accordance with IEC 61850. It proposes a principle for determining active consumers based on search for optimal variants of short-time partial customers' disconnection (restrictions). Availability of production reserves and various types of customer excess potentially enable a short time disconnection without process interruption nor production suspension. Each customer is analyzed with a simulation aggregative model of the process system. This paper presents an example of current enterprise analysis: effective variants of disconnections without serious consequences for a customer are found. The method for determining the optimal control action during disconnection of a number of customers is proposed. All the proposed methods can be implemented with the automatic system controlling active consumers' power-supply, which will improve reliability of their power supply and mitigate disconnection consequences.