Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/217178
Title: ANALYSIS AND PREDICTIVE CONTROL OF POWER DISTRIBUTION SYSTEM WITH HIGH PENETRATION OF PV RESOURCES
Authors: MAHARJAN SALISH
ORCID iD:   orcid.org/0000-0003-1721-9087
Keywords: voltage stability, voltage sensitivity, distribution network modeling, robust model predictive control, voltage control, volt-var optimization
Issue Date: 22-Jan-2020
Citation: MAHARJAN SALISH (2020-01-22). ANALYSIS AND PREDICTIVE CONTROL OF POWER DISTRIBUTION SYSTEM WITH HIGH PENETRATION OF PV RESOURCES. ScholarBank@NUS Repository.
Abstract: Real-time control is projected as the future of the active distribution networks for hosting extensive integration of renewables and achieving its techno-economic operation. The thesis enhances the four major challenges in the distribution network control at high PV penetration, viz., (a) averting short-term voltage instability caused by severe PV ramps, (b) developing accurate linear model, and achieving (c) voltage control and (d) techno-economic operation, under uncertainty of PV generations and load demands. The thesis shows the first challenge can be resolved by replacing Induction Motor (IM) loads with a suitable variable-speed-drive penetration policy, as the IM load response is found to aggravate the instability. The linear model is enhanced with accurate and efficient computation of voltage sensitivity to tap-position of tap changers. Utilizing the developed linear model, the third and fourth problems are solved with robust constrained model predictive control. The proposed approaches are verified using DigSILENT PowerFactory.
URI: https://scholarbank.nus.edu.sg/handle/10635/217178
Appears in Collections:Ph.D Theses (Open)

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