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- W2612920108 abstract "Power systems are making a transition from purely technical, centrally planned systems to market based, decentralized systems. The need for balancing power and frequency control reserves are increasing, partially due to variable renewable production, which gives an opportunity for new incomes but also a challenge in terms of changed modes of operation with risk for reduced lifetime for controllable power plants. This paper investigates how the allocation of a sold volume of frequency control reserves within a large hydropower production fleet can affect the costs of providing primary and secondary reserves, in terms of its impact on wear and fatigue, production losses, and the quality of the delivered frequency control. The results show that for primary control, low static gain in the governors results in poor quality and a large amount of load cycles of the units. High static gain, on the other hand, increases the production losses. The control work of the fleet can be reduced by using a proper balance of primary and secondary control gain on each unit, although the intuitive results from linear models exaggerate this effect. Automatic secondary control improves the system frequency quality but also increases the wear." @default.
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- W2612920108 date "2018-01-01" @default.
- W2612920108 modified "2023-10-16" @default.
- W2612920108 title "Allocation of Frequency Control Reserves and Its Impact on Wear and Tear on a Hydropower Fleet" @default.
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- W2612920108 doi "https://doi.org/10.1109/tpwrs.2017.2702280" @default.
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