Abstract
Pseudo medium/low voltage (MV/LV) transformer loads are usually used as partial inputs to the distribution system state estimation (DSSE) in MV systems. Such pseudo load can be represented by the aggregation of smart metering (SM) data. This follows the government restriction that distribution network operators (DNOs) can only use aggregated SM data. Therefore, we assess the subsequent performance of the DSSE, which shows the impact of this restriction - it affects the voltage angle estimation significantly. The possibilities for improving the DSSE accuracy under this restriction are further studied. First, two strategies that can potentially relax this restriction's impact are studied. First, the correlations among pseudo loads' errors are taken into account in the DSSE process and a power loss estimation method is proposed. Second, the investments (i.e., either adding measurement devices or increasing the original devices' accuracy) for the satisfactory DSSE results are assessed. All these are for addressing DNOs' concerns on this restriction.
Original language | English |
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Pages (from-to) | 1426-1437 |
Number of pages | 12 |
Journal | IEEE Transactions on Industrial Informatics |
Volume | 12 |
Issue number | 4 |
Early online date | 26 May 2016 |
DOIs | |
Publication status | Published - Aug 2016 |
Keywords
- Smart meter
- Distribution system state estimation
- DSSE
- Medium voltage power system
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Dr Simon M D Armour
- School of Electrical, Electronic and Mechanical Engineering - Senior Lecturer in Software Radio
- Communication Systems and Networks
Person: Academic , Member