Paper Details

Conventional VAR compensation devices such as capacitor banks and synchronous condensers, after longperiods of service, have become aged and less effective to satisfy stringent requirement of short-term voltage stability inhigh-level wind power penetrated power systems.STATCOMs with a rapid and dynamic reactive power supportcapability can be an ideal alternative, when combined with a proper equipment retirement and upgrades scheme.Thiswork proposes a systematic approach for optimal dynamic VAR resource planning and upgrading for a power systemwith increased wind power penetration and equipment retirement.The problem is constituted by two parts which areaged equipment retirement and new equipment placement.A multi-objective optimization model is proposed to minimizethree objectives:1) the cost of retirement and upgrades, 2) the index of proximity to steady state voltage collapse, and 3)the index of transient voltage unaccepted performance. To simulate real-world operating situation, multiplecontingencies and uncertain dynamic load models are taken into account. Furthermore, Low and High Voltage RideThrough abilities for wind farms are modeled. The proposed model is tested on the New England 39-bus test system.

Mallikharjuna, P Amrutha, “ACO based Retirement-Driven Dynamic VAR Planning for Voltage Stability Enhancement of Power Systems with High-Level Wind Power”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 7, Issue 7, pp. 128-137, July 2020.