OLTC-Driven Network Reconfiguration for Enhanced Renewable Hosting Capacity

A time-sequenced consumption model is developed in this paper, to coordinate load profiles with IRE generation patterns, formulated as an annual IRE utilization maximization problem. Multiple active management mechanisms are systematically integrated, including controlled IRE curtailment, dynamic on-load tap changer (OLTC) adjustments, and adaptive network reconfiguration. Model optimization is implemented through a primal-dual interior point algorithm, complemented by scenario analysis to evaluate operational boundaries under different management schemes. Validation is conducted using an enhanced IEEE 33-node test system, demonstrating 18.7-32.4% increases in IRE penetration capacity compared to passive operation modes.