Investigating flexibility and stability boosting transmission expansion planning(TEP)methods can increase the renewable energy(RE)consumption of the power *** this study,we propose a bi-level TEP method for voltage-so...
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Investigating flexibility and stability boosting transmission expansion planning(TEP)methods can increase the renewable energy(RE)consumption of the power *** this study,we propose a bi-level TEP method for voltage-source-converter-based direct current(VSC-DC),focusing on flexibility and stability ***,we established the TEP framework of VSC-DC,by introducing the evaluation indices to quantify the power system flexibility and ***,we propose a bi-level VSC-DC TEP model:the upper-level model acquires the optimal VSC-DC planning scheme by using the improvedmothflameoptimization(IMFO)algorithm,and the lower-level model evaluates the flexibility through time-series production ***,we applied the proposedVSC-DC TEPmethod to the modified IEEE-24 and IEEE-39 test systems,and obtained the optimalVSCDC planning *** results verified that the proposed method can achieve excellent RE curtailment with high flexibility and ***,the well-designed IMFO algorithm outperformed the traditional particle swarm optimization(PSO)and mothflameoptimization(MFO)algorithms,confirming the effectiveness of the proposed approach.
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