Optimal Integration of High-speed Traction Load Considering Mutual Power Quality Constraints

Due to ignore the impact and the supply requirements of the high-speed traction load at the planning stage, many engineering projects have to increase investment for power quality mitigation. This paper proposes a preliminary planning method for better integration of high-speed traction load. Considering the uncertainty of high-speed traction load, the probabilistic flow analysis model is built to establish the procedure for prediction of system status. Combined with power quality constraints, a chance-constrained model whose objective function is the minimum of investment and loss is established and solved by LDIW-PSO algorithmic. A practical high-speed railway construction project in southwest China is introduced to testify the validity and applicability of the method. According to the simulation results, different toll collection in line with varied supply requirement can be taken into consideration.