Tham khảo tài liệu 'electrical generation and distribution systems and power quality disturbances part 4', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Optimal Location and Control of _ Multi Hybrid Model Based Wind-Shunt FACTS to Enhance Power Quality 47 Fig. 14. Convergence characteristic of the 6 generating units with consideration of wind source and STATCOM Fig. 15. Active power transit Pij with and without wind and STATCOM Case1 Normal Condition IEeE 30-Bus 48 Electrical Generation and Distribution Systems and Power Quality Disturbances Table 1 shows the results based on the flexible integration of the hybrid model the goal is to have a stable voltage at the candidate buses by exchanging the reactive power with the network the active power losses reduced to MW compared to the base case MW without integration of the hybrid controllers the total cost also reduced to h compared to the base case h Fig. 14 shows the convergence characteristic of fuel cost for the IEEE 30-Bus with consideration of the hybrid models Fig. 15 shows the distribution of power transit in the different branches at normal condition Fig. 17 shows the distribution of power transit in the different branches at contingency situation without line 1-2 . The active power transit reduced clearly compared to the case without integration of wind source which enhance the system security. Fig. 16 shows the improvement of voltage profiles based hybrid model. Results at abnormal conditions contingency are also encouragement. Fig. 16. Voltage profiles with and without hybrid model wind and STATCOM IEEE 30-Bus Case2 Under Contingency Situation The effeciency of the integrated hybrid model installed at different critical location is tested under contingency situation caused by fault in power system so it is important to maintain the voltage magnitudes and power flow in branches within admissible values. In this case a contingency condition is simulated as outage at different candidate lines. Table 2 shows sample results related to the optimal power flow solution under contingency conditions Fault at line 1-2 . Optimal .
