Using natural gas reserves to mitigate intermittence of renewables in the day ahead market

Zeinalzadeh, Ashkan; Aguiar, Nayara; Baros, Stefanos; Annaswamy, Anuradha M.; Chakraborty, Indraneel; Gupta, Vijay

doi:10.1109/cdc.2017.8264232

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…[14]) to measure the risks of dispatch strategies. Several works that are representative of the direction of this study include [1,15,16,17,18,19], which analyze the problem under different market settings. The studies most relevant to our work are [15] and [16].…”

Section: A Related Literaturementioning

confidence: 99%

Reliability and Market Price of Energy in the Presence of Intermittent and Non-Dispatchable Renewable Energies

Zeinalzadeh¹,

Ghavidel²,

Gupta³

2018

Preprint

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The intermittent nature of the renewable energies increases the operation costs of conventional generators. As the share of energy supplied by renewable sources increases, these costs also increase. In this paper, we quantify these costs by developing a market clearing price of energy in the presence of renewable energy and congestion constraints. We consider an electricity market where generators propose their asking price per unit of energy to an independent system operator (ISO). The ISO solve an optimization problem to dispatch energy from each generator to minimize the total cost of energy purchased on behalf of the consumers.To ensure that the generators are able to meet the load within a desired confidence level, we incorporate the notion of load variance using the Conditional Value-at-Risk (CVAR) measure in an electricity market and we derive the amount of committed power and market clearing price of energy as a function of CVAR. It is shown that a higher penetration of renewable energies may increase the committed power, market clearing price of energy and consumer cost of energy due to renewable generation uncertainties. We also obtain an upperbound on the amount that congestion constraints can affect the committed power. We present descriptive simulations to illustrate the impact of renewable energy penetration and reliability levels on committed power by the non-renewable generators, difference between the dispatched and committed power, market price of energy and profit of renewable and non-renewable generators.

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Section: A Related Literaturementioning

confidence: 99%

Reliability and Market Price of Energy in the Presence of Intermittent and Non-Dispatchable Renewable Energies

Zeinalzadeh¹,

Ghavidel²,

Gupta³

2018

Preprint

Self Cite

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“…He et al (2017) examine the effect of uncertain renewable power production to the coupled energy system in a robust co-optimization framework, while Alabdulwahab et al (2015) utilize a model based on stochastic programming to dispatch the power system with feasible fuel supply from the natural gas network. Moreover, Zeinalzadeh et al (2017) consider a joint optimization framework that utilizes GFPPs to firm up uncertain power supply from renewables.Taking a market perspective, Wang et al (2018) propose an equilibrium model for the interdependent electricity and natural gas markets that allows for short-term energy trading based on locational marginal prices. In a similar context, this paper explores the short-term coupled operation of electricity and natural gas systems in a market framework where these energy commodities are traded based on their marginal prices.…”

Section: Introductionmentioning

confidence: 99%

Market-based coordination of integrated electricity and natural gas systems under uncertain supply

Ordoudis

Delikaraoglou

Kazempour

2020

European Journal of Operational Research

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“…Enviromental and economic reasons together with recent technological advances are the primary drivers for high penetration of renewable energy resources (RERs) in power systems [1], [2], [3], [4]. Today, renewable energy is mainly generated in distribution grids closer to the end-users by small distributed energy resources (DERs) that are interfaced with the main grid through alternating current (AC) inverters [5].…”

Section: Introductionmentioning

confidence: 99%

Stability Analysis of Droop-Controlled Inverter-Based Power Grids via Timescale Separation

Baros¹,

Hadjicostis²,

O’Sullivan³

2020

Preprint

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We consider the problem of stability analysis for distribution grids with droop-controlled inverters and dynamic distribution power lines. The inverters are modeled as voltage sources with controllable frequency and amplitude. This problem is very challenging for large networks as numerical simulations and detailed eigenvalue analysis are impactical. Motivated by the above limitations, we present in this paper a systematic and computationally efficient framework for stability analysis of inverter-based distribution grids. To design our framework, we use tools from singular perturbation and Lyapunov theories. Interestingly, we show that stability of the fast dynamics of the power grid depends only on the voltage droop gains of the inverters while, stability of the slow dynamics, depends on both voltage and frequency droop gains. Finally, by leveraging these timescale separation properties, we derive sufficient conditions on the frequency and voltage droop gains of the inverters that warrant stability of the full system. We illustrate our theoretical results through a numerical example on the IEEE 13-bus distribution grid.

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Using natural gas reserves to mitigate intermittence of renewables in the day ahead market

Cited by 8 publications

References 8 publications

Reliability and Market Price of Energy in the Presence of Intermittent and Non-Dispatchable Renewable Energies

Reliability and Market Price of Energy in the Presence of Intermittent and Non-Dispatchable Renewable Energies

Market-based coordination of integrated electricity and natural gas systems under uncertain supply

Stability Analysis of Droop-Controlled Inverter-Based Power Grids via Timescale Separation

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