Modelling and analysis of shunt-connected voltage source converter for voltage dip mitigation
dc.contributor.author | Cilona, Paolo | |
dc.contributor.department | Chalmers tekniska högskola / Institutionen för energi och miljö | sv |
dc.contributor.department | Chalmers University of Technology / Department of Energy and Environment | en |
dc.date.accessioned | 2019-07-03T13:07:35Z | |
dc.date.available | 2019-07-03T13:07:35Z | |
dc.date.issued | 2010 | |
dc.description.abstract | Distribution Static Synchronous Compensator (D-STATCOM) is a Custom Power Device based on a Voltage Source Converter (VSC) shunt connected to the grid. By injecting a controllable current, it can improve the quality of the load current, e.g. compensating harmonic currents or °uctuating currents. If a D-STATCOM is equipped with an energy storage, the system is also called Energy Storage Equip- ment STATCOM (E-STATCOM). This thesis focuses on the E-STATCOM for mitigating voltage dips. A short descrip- tion of power quality problems has been done, with particular attention a in-depth study on voltage dip problem and its solution has been conducted. Afterwards the control system for the E-STATCOM has been derived. The vector current- and voltage-controllers have been designed and their behaviour has been studied. The impact of controller bandwidths and of model parameters has been investigated. The dual vector current- voltage-controllers (DVCC DVVC) have been designed in order to improve the performance con the control system also under unbalanced conditions. All results are veri¯ed in MATLAB and simulated in PSCAD/EMTDC. The system has been tested to mitigate both balanced and unbalanced voltage dips, with several types of loads. | |
dc.identifier.uri | https://hdl.handle.net/20.500.12380/173965 | |
dc.language.iso | eng | |
dc.setspec.uppsok | LifeEarthScience | |
dc.subject | Elkraftteknik | |
dc.subject | Electric power engineering | |
dc.title | Modelling and analysis of shunt-connected voltage source converter for voltage dip mitigation | |
dc.type.degree | Examensarbete för masterexamen | sv |
dc.type.degree | Master Thesis | en |
dc.type.uppsok | H |
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