This Simulation and Fault analysis of HVDC on MATLAB report has clearly demonstrated the methodology for modeling steady state operation of HVDC transmission system rectifier using universally available software Mat lab/Simulink. Functioning of complex HVDC transmission system converter can be obtained by analytical modeling. Further easy to comprehend analytical model in universally available software like Matlab/Simulink can help in fast spread of complex HVDC system.
Advancements in power electronics are making high Voltage Direct Current Transmission Systems (HVDC) more and more attractive and reliable. Developing countries like India and China with their ambitious power capacity enhancement program are installing more HVDC systems for long distance transmission. More can be obtained from huge investments in complex HVDC systems if operation and maintenance personnel have deeper understanding about the functioning of these systems. Further commissioning/maintenance errors may be minimized if the consequences of such errors are known and appreciated by the concerned personnel. Easy to comprehend, simple analytical HVDC converter model as developed in universal software Matlab/Similink in this report can prove to be very useful for operation and maintenance personnel. The model illustrates steady state operation of HVDC system converter and can be used to comprehend commutation and overlap, valve firing sequence, AC current and voltage waveforms in converter transformer & the source, and DC current including ripple. The model also helps in understanding the role and importance of AC filters.
ADVANTAGES: System stability. loss of corona is less and radio interferences. Great reliability. Bulk power long distance transmission .Tower size and cost.
Disadvantages : Cost of converting station. Reactive power requirement. Less overload capacity.
Loss in cooling system. Absence of suitable circuit breaker.
Simulation and Fault analysis of HVDC on MATLAB Conclusion:
This report has clearly demonstrated the methodology for modeling steady state operation of HVDC transmission system rectifier using universally available software Matlab/Simulink. Further the model as developed is very useful in plotting the converter system firing angle verses direct current characteristics and determining the corresponding overlap angle in an easy and iterative manner.
Download Simulation and Fault analysis of HVDC on MATLAB.