This paper presents an evaluation of two control schemes for virtual inertia support from the converter terminals of an HVDC interconnection. A point-to-point interconnection between asynchronous power systems is assumed, where one terminal controls the dc-side voltage while the other controls the...
This report elaborates on the toolchains applied for generation scheduling in the two countries Norway and Brazil. Both countries have vast hydropower resources, with numerous geographically widespread and complex reservoir systems. Although the underlying objective of the scheduling is essentially...
Hydrogen storage and purification processes represent two key steps in hydrogen fuel production and supply chain, and for this reason they have a critical role in the development of the hydrogen economy. On one hand, the use of carbon membranes can help to overcome some disadvantages of the already...
This work presents a dynamic model of the reactive side of large-scale fluidized bed (FB) boilers that describes the in-furnace transient operation of both bubbling and circulating FB boilers (BFB and CFB, respectively). The model solves the dynamic mass and energy balances accounting for the bulk...
Grunnet flom i Nysetelva på senhøsten 2018 gjorde representanter fra grunneierne, Østfold Energi (ØE) og NVE en befaring i 2019 for å vurdere konsekvensene med hensyn til endringer/gjengroing i elveløpet og terskler i nedre del av elva. Med dette som bakgrunn ønsker ØE en oppdatert kartlegging og...
I denne rapporten gis anbefalinger for tiltak som kan gjøres i det norske kraftnettet for å håndtere risiko og for å unngå havari og/eller utfall som følge av solstormer. Anbefalingene i rapporten bygger i stor grad på anbefalinger utstedt av institusjonene Electric Power Research Institute (EPRI...
This work studies the impact of Wireless Sensor Networks (WSNs) for oil spill detection and localization in Subsea Production Systems. The case study is the Goliat FPSO, with a realistic assumption about the presence of a WSN built upon the existing passive acoustic sensors installed on each subsea...
The unfolding of Circular Economy principles will have consequences on the generation rate, amount, and composition of Municipal Solid Waste (MSW) as well as the preferred methods to treat them. In this work, four plausible scenarios on the future of MSW for the period 2020 – 2035 have been...