Abstract
This paper presents the impact of feeder reconfiguration and network topology on voltage stability margin in distribution sytems. This work includes: (i) voltage stability margin analysis in mesh network and reconfigured distribution system, (ii) a new stability index is established for mesh networks, (iii) voltage stability margin is determined for various voltage-dependent load models, (iv) voltage stability margin enhancement is studied with PV penetration and OLTC, (v) probabilistic load model and uncertainty of PV power output are also taken care in the evaluation of voltage stability margin. The analysis has been conducted on IEEE 33-bus distribution network.
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