DESIGN AND IMPLEMENTATION OF MODERN COMPUTER INFORMATION-COMMUNICATION SYSTEM FOR REMOTE MONITORING, PROTECTING AND CONTROL OF TRANSFORMER SUBSTATION

Ta diplomska naloga opisuje principe zasnove in izvedbe sodobnega računalniškega, informacijsko-komunikacijsko podprtega sistema za daljinski nadzor, meritve, diagnostiko in zaščito ter vodenje oziroma upravljanje razdelilne transformatorske postaje (RTP), z namenom zamenjave sekundarne opreme ter modernizacije sistema vodenja in zaščite RTP. Zastarel in nezanesljiv sistem daljinskega vodenja ne omogoča avtomatizacije RTP 110/20/21kV Mokronog in uvajanja koncepta pametnih omrežij. Nov sistem daljinskega vodenja, nadzora in zaščite je zasnovan na sistemu ABB COM 600 z vgrajenimi zaščitnimi releji ABB REF 54x, ki so komunikacijsko povezani in komunicirajo po protokolu IEC 61850. Opisana je zasnova in izvedba telekomunikacijske povezave z dielektričnim prostozračnim kablom z optičnimi vlakni, obešenim na oporišča srednje napetostnih (SN) daljnovodov med sosednjimi RTP, ki tvori lastno optično omrežje (IP/Ethernet). Diplomsko delo opisuje zagon sistema, funkcionalne preizkuse in vzpostavitev brezhibnega delovanja srednje napetostne celice s stikalom in napravo za zaščito, nadzor in krmiljenje z vključevanjem v nadzorni sistem PSI Control-EE in SCADA aplikacijo ter kasnejše periodično preizkušanje in meritve.The thesis describes the design principles and concepts of the modern computing, information-communication support system for remote control, measurements, diagnostic, protection and management or governance the Substation Control System, with a view to the replacement of secondary equipment, modernization of the management system and protection of Substation Control System. Outdated and unreliable remote control system does not allow for automation the Substation Control System 110/20/21 kV Mokronog and the introduction of the concept of smart grids. The new remote control system, control and protection is based on system of ABB COM 600 with built-in protection relays ABB REF 54x, which are communication related and communicate using a protocol IEC 61850. It is described the design and construction for the monitoring with the dielectric overhead cable with optical fibbers, hanging on base of the middle voltage power lines between adjacent Substation Control Systems, forming the own optical network (IP/Ethernet). Thesis describes the system startup, functional tests of reliability of middle voltage switch panels and protection device, control and monitoring by integrating in the control system PSI Control – EE in SCADA application and periodically testing and measurements