Connection Study of Wind Power Plant (102,3MW) to the Transmission Network of Serbia - Power System Analysis

Main objective of the study is to analyze compliance of the wind turbines SWT-3.3 (3.3 MW) to Serbian grid code, for the point of common coupling suggested by the Investor. In order to examine compliance of the wind power plant (102,3MW) with Serbian grid code, following activities have been performed:

• Integration of simulation model of wind power plant into regional SEE dynamic model in software PSSE and DIgSILENT
• Load flow analyses – network element loadings, security N-1 assessment, power losses, voltage and reactive power control
• Short circuit contribution assessment
• Transient stability – Checking the capability of wind generators to maintain stability and provide the required voltage support in cases of simulated voltage dips in the network (caused by close and remote electrical faults)
• Mid-term stability - Stability assessment after large disturbances in the power system of Serbia
• Short-term and long-term voltage stability assessment
• Small signal stability assessment
• Assessment of power quality indices in connection point – Voltage flickers (normal and switching operation), harmonic distortion
• EMT simulations - Switching transient overvoltage assessment.

Type of services provided:

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