Analysis of the Power System of Montenegro with SVC in Niksic Alloyed Engineering Steel

Main objective of the Study is to examine the impact of the electric arc furnaces (Niksic Alloyed Engineering Steel) to the power system of Montenegro, with connected 110kV buses in SS Nikšić, and possible reflections to the electric power system of Montenegro, with maintaining the current level of stability, security and reliability of the system, with minimal harmonic impact in transmission and distribution network. Results of the analysis should point out possible difficulties in the period in which the 220/110kV Perućica out of service, as well as the reduced generation of HPP Perućica.

Following activities have been performed:

• Integration of simulation model of electric arc furnance into regional SEE dynamic model in software PSS/E and DIgSILENT
• Load flow analyses – network element loadings, voltage and reactive power control
• Short circuit contribution assessment
• Analysis of electric arc furnance operation (in time domain) for full and enervater transmission network
• Transient stability - Checking the capability of generators in HPP Perućica to maintain stability and provide the required voltage support in cases of simulated voltage dips in the network (caused by close electrical faults)
• Short-term and long-term voltage stability assessment
• Assessment of power quality indices in connection point - Voltage flickers and harmonic distortion

Type of services provided:

• Load flow analyses
• Network security assessment
• Voltage stability and reactive power control analyses
• Short circuit analyses
• Transient stability analyses
• Mid-term stability analyses
• Power quality analyses