Energy Comes Together in Denmark: The Key to a Future Fossil-Free Danish Power System

Meibom, Peter; Hilger, Klaus Baggesen; Madsen, Henrik; Vinther, Dorthe

doi:10.1109/mpe.2013.2268751

Cited by 97 publications

(43 citation statements)

References 2 publications

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“…The gas turbine is limited in the production of electricity. Since this is linearly dependent on the input of gas, the capacity constraints can be written as (2) where and are the capacity limits and is the fraction of energy in input gas resulting in output electricity. The fraction of heat produced from the gas turbine flowing directly into the accumulator tank (see Fig.…”

Section: ) Incineratorsmentioning

confidence: 99%

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Operational Strategies for a Portfolio of Wind Farms and CHP Plants in a Two-Price Balancing Market

Hellmers

Zugno

Skajaa

et al. 2016

IEEE Trans. Power Syst.

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In this paper, we explore the portfolio effect of a system consisting of a combined heat and power (CHP) plant and a wind farm. The goal is to increase the overall profit of the portfolio by reducing imbalances and, consequently, their implicit penalty in a two-price balancing market for electricity. We investigate two different operational strategies, which differ in whether the CHP plant and the wind farm are operated jointly or independently, and we evaluate their economic performance on a real case study based on a CHP-wind system located in the western part of Denmark. We present a comprehensive mathematical model for describing the different heat and power production units of the CHP plant and suggest different ways of determining its operation in a setup with two trading floors: a day-ahead market and a balancing market. We build a simulation framework that runs in a rolling-horizon fashion, so that forecasts for heat demand, wind power production, and market prices are updated at each iteration. We conclude that the portfolio strategy is the most profitable due to the two-price structure of the balancing market. This encourages producers to handle their imbalances outside the market.Index Terms-Balancing market, combined heat and power (CHP), electricity market, optimal portfolio operation, wind power.

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Section: ) Incineratorsmentioning

confidence: 99%

“…Furthermore, ramp-up and -down times of CHP systems are short. As a result, these systems are flexible, and can thus be used to ensure balance and stability in the electric grid [2].…”

Section: Introductionmentioning

confidence: 99%

Operational Strategies for a Portfolio of Wind Farms and CHP Plants in a Two-Price Balancing Market

Hellmers

Zugno

Skajaa

et al. 2016

IEEE Trans. Power Syst.

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“…power, heat and transport, are required to be managed in an integrated way. The connection among the energy systems could enhance the system flexibility and enable a higher penetration of renewables [6], [7].…”

Section: Introductionmentioning

confidence: 99%

Energylab Nordhavn: An integrated community energy system towards green heating and e-mobility

Wang

You

Traholt

2017

2017 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific)

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Abstract-This paper analyzes the green potential of a newly developed urban community, i.e., Nordhavn, in Copenhagen, Denmark from a planning perspective, wherein the energy sector of power, heat and transportation will be developed as an integrated energy system solution. Based on an hour-by-hour analysis wherein the generation and demand in each energy sector are balanced, the analysis explains how different levels of penetration of centralized heat pumps (HPs) and electric vehicles (EVs) would influence the energy performance of this integrated community energy system. The performance of the integrated energy system is evaluated from the perspectives of annual fuel consumption, electricity import, system cost and CO2 emission, etc.

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“…The penetration level of renewable energy sources in both Norway and Sweden has already exceeded 30% since 2012 and in the case of the US, the generation capacity of photovoltaic (PV) systems has exceeded 10 GW since 2013 [1,2]. In the case of Denmark, wind power's share of total power consumption is expected to be approximately 50% by 2020 and the Danish government has proposed a goal of 100% renewable energy sources in 2050 [3].…”

Section: Introductionmentioning

confidence: 99%

New Requirements of the Voltage/VAR Function for Smart Inverter in Distributed Generation Control

Kim

Lee

et al. 2016

Energies

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International Electronical Committee (IEC) 61850-90-7 is a part of the IEC 61850 series which specifies the advanced functions and object models for power converter based Distributed Energy Resources (DERs). One of its functions, the Voltage/VAR (V/V) control function, is used to enhance the stability and the reliability of the voltage in the distribution system. The conventional V/V function acts mainly for flattening the voltage profile as for a basic grid support function. Currently, other objectives such as the minimization of line loss and the operational costs reduction are coming into the spotlight. In order to attain these objectives, the V/V function and hence the DER units shall actively respond to the change of distribution system conditions. In this paper, the modification of V/V function and new requirements are proposed. To derive new requirements of V/V function, loss minimization is applied to a particle swarm optimization (PSO) algorithm where the condition of voltage constraint is considered not to deteriorate the voltage stability of the distribution system.

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Energy Comes Together in Denmark: The Key to a Future Fossil-Free Danish Power System

Cited by 97 publications

References 2 publications

Operational Strategies for a Portfolio of Wind Farms and CHP Plants in a Two-Price Balancing Market

Operational Strategies for a Portfolio of Wind Farms and CHP Plants in a Two-Price Balancing Market

Energylab Nordhavn: An integrated community energy system towards green heating and e-mobility

New Requirements of the Voltage/VAR Function for Smart Inverter in Distributed Generation Control

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