Power system virtual inertia implemented by grid-connected solar photovoltaic inverters
Solar photovoltaic (PV) generation systems are increasingly deployed in modern power systems. However, in comparison with conventional power generation, as the capacity of PV generation systems increases, the inertia of power system will be reduced. In this way, system frequency deviations would sur...
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sg-ntu-dr.10356-747872023-07-07T16:05:50Z Power system virtual inertia implemented by grid-connected solar photovoltaic inverters Wang, Chuan Tang Yi School of Electrical and Electronic Engineering DRNTU::Engineering Solar photovoltaic (PV) generation systems are increasingly deployed in modern power systems. However, in comparison with conventional power generation, as the capacity of PV generation systems increases, the inertia of power system will be reduced. In this way, system frequency deviations would surpass the permissible scope under frequency contingencies, leading to undesirable consequences. This is considered to be one of the major scientific challenges faced by those countries which have committed to raising the share of renewable generation. To address this problem, a method of emulating the inertia by the energy stored in a capacitor is proposed in this paper. Such capacitor is contained in a grid-connected power converter. Without modifying the original inertia coefficient in the system, the capacitance of capacitors and dc-link voltages can be changed to control the virtual inertia. Moreover, simulations can show that this proposed method is useful in regulating frequency deviation. Bachelor of Engineering 2018-05-24T02:30:11Z 2018-05-24T02:30:11Z 2018 Final Year Project (FYP) http://hdl.handle.net/10356/74787 en Nanyang Technological University 55 p. application/pdf |
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DRNTU::Engineering Wang, Chuan Power system virtual inertia implemented by grid-connected solar photovoltaic inverters |
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Solar photovoltaic (PV) generation systems are increasingly deployed in modern power systems. However, in comparison with conventional power generation, as the capacity of PV generation systems increases, the inertia of power system will be reduced. In this way, system frequency deviations would surpass the permissible scope under frequency contingencies, leading to undesirable consequences. This is considered to be one of the major scientific challenges faced by those countries which have committed to raising the share of renewable generation.
To address this problem, a method of emulating the inertia by the energy stored in a capacitor is proposed in this paper. Such capacitor is contained in a grid-connected power converter. Without modifying the original inertia coefficient in the system, the capacitance of capacitors and dc-link voltages can be changed to control the virtual inertia.
Moreover, simulations can show that this proposed method is useful in regulating frequency deviation. |
author2 |
Tang Yi |
author_facet |
Tang Yi Wang, Chuan |
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Final Year Project |
author |
Wang, Chuan |
author_sort |
Wang, Chuan |
title |
Power system virtual inertia implemented by grid-connected solar photovoltaic inverters |
title_short |
Power system virtual inertia implemented by grid-connected solar photovoltaic inverters |
title_full |
Power system virtual inertia implemented by grid-connected solar photovoltaic inverters |
title_fullStr |
Power system virtual inertia implemented by grid-connected solar photovoltaic inverters |
title_full_unstemmed |
Power system virtual inertia implemented by grid-connected solar photovoltaic inverters |
title_sort |
power system virtual inertia implemented by grid-connected solar photovoltaic inverters |
publishDate |
2018 |
url |
http://hdl.handle.net/10356/74787 |
_version_ |
1772828901509169152 |