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- Title
Enhancing the economic benefit of fair PV curtailment with an improved remuneration mechanism.
- Authors
Medved, Tomi; Prislan, Blaž; Gubina, Andrej
- Abstract
With the increase in the distributed renewable energy sources (DRES) in the energy system the problems connected with them have become a major factor. The paper focuses on the voltage control in the distribution network (DN) and on resolving the problem of DRES curtailment in the fairest possible way for the photovoltaic generation plant (PV) owners. Curtailment schemes - uniform and non-uniform implemented for using various PV control strategies (simple, local and overlaying control) are presented. An improved approach to fair economic remuneration for the PV operators for the curtailed energy is proposed. The energy difference between the local control (non-uniform curtailment) and overlaying control (uniform curtailment) is calculated. To increase the efficiency of curtailment and maximise the PV profits, the energy difference between the uniform and non-uniform curtailment can be sold on the balancing market, thus making an additional profit for the PV owners. Trading of this energy should be done by an independent external party with an access to the inverter control. In most cases that would be distribution system operator (DSO) or a third-party aggregator. Money gained by selling that energy on the short-term market would then be distributed to the PV owners using the proposed improved remuneration mechanism. Technical and administrative barriers as well as their solutions are discussed. At the end, simulation results for a typical distribution network are presented and the energy-economic potential of the proposed mechanism is analysed.
- Subjects
RENEWABLE energy sources; DISTRIBUTED network protocols; ENERGY auditing; ENERGY conservation; ENERGY consumption &; economics; TOTAL energy systems (On-site electric power production); ECONOMICS
- Publication
Electrotechnical Review / Elektrotehniski Vestnik, 2015, Vol 82, Issue 5, p287
- ISSN
0013-5852
- Publication type
Article