Competitive procurement of ancillary services by an independent system operator

Singh, Harry; Papalexopoulos, A.

doi:10.1109/59.761872

Cited by 210 publications

(87 citation statements)

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“…An increasing body of literature studies design issues of reserve capacity markets. One line of research investigates settlement rules (see Singh and Papalexopoulos, 1999;Kamat and Oren 2002). Others explore the issue of scoring the two-dimensional bids (see Bushnell and Oren, 1994;Chao and Wilson, 2002;Swider, 2007b).…”

Section: Introductionmentioning

confidence: 99%

Appropriate contract durations in the German markets for on-line reserve capacity

Just

2011

J Regul Econ

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Standard-Nutzungsbedingungen:Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden.Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen.Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. (2008) for reserve markets. It reveals the implicit trade-off for the bidders and interdependencies between the reserve and the spot markets. The results clearly show that shorter periods (with resulting lower variations in overall electricity demand) lead to more efficient dispatch and market results. Not only prices in the reserve capacity markets are expected to be lower, but also spot market prices. As these benefits can be partially reaped by owners of large generation portfolios also under longer contract durations, it discriminates smaller generation companies and can potentially deter market participation. Further, the paper discusses security concerns against shorter contract durations. It is shown that the opportunity costs character of the reserve market implies sufficient incentives for supplying online reserve capacity. The concerns do not appear to be predominant and it should be possible to manage them appropriately. Terms of use: Documents in

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Section: Introductionmentioning

confidence: 99%

Appropriate contract durations in the German markets for on-line reserve capacity

Just

2011

J Regul Econ

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“…The system operators conduct frequency regulation or secondary reserve to reduce the fluctuations and thereby provide stable and reliable system operation. Frequency regulation involves the injection or withdrawal of as much active power as the assigned regulation capacity of the resource [18]. Two types of frequency regulation market exist.…”

Section: Frequency Regulation Marketmentioning

confidence: 99%

Optimal Scheduling and Real-Time State-of-Charge Management of Energy Storage System for Frequency Regulation

Yang

Choi

et al. 2016

Energies

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An energy storage system (ESS) in a power system facilitates tasks such as renewable integration, peak shaving, and the use of ancillary services. Among the various functions of an ESS, this study focused on frequency regulation (or secondary reserve). This paper presents an optimal scheduling algorithm for frequency regulation by an ESS. This algorithm determines the bidding capacity and base point of an ESS in each operational period to achieve the maximum profit within a stable state-of-charge (SOC) range. However, the charging/discharging efficiency of an ESS causes SOC errors whenever the ESS performs frequency regulation. With an increase in SOC errors, the ESS cannot respond to an automatic generation control (AGC) signal. This situation results in low ESS performance scores, and finally, the ESS is disqualified from performing frequency regulation. This paper also presents a real-time SOC management algorithm aimed at solving the SOC error problem in real-time operations. This algorithm compensates for SOC errors by changing the base point of the ESS. The optimal scheduling algorithm is implemented in MATLAB by using the particle swarm optimization (PSO) method. In addition, changes in the SOC when the ESS performs frequency regulation in a real-time operation are confirmed using the PSCAD/EMTDC tool. The simulation results show that the optimal scheduling algorithm manages the SOC more efficiently than a commonly employed planning method. In addition, the proposed real-time SOC management algorithm is confirmed to be capable of performing SOC recovery.

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“…The supply, dependent on the price, is the aggregate curve of the single offers of the bidders. Since the capacity is reserved and procured in advance, and the energy is dispatched in response to real time imbalances, any bid is characterized by two different prices: the first one (E/MW) for reserved capacity and the second one (E/MWh) for dispatched energy [2,6,7,8].…”

Section: Introductionmentioning

confidence: 99%

Bidding strategy of a micro grid for the day-ahead energy and spinning reserve markets: the problem formulation

Ferruzzi¹,

Rossi²,

Bracale³

2017

IJHT

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The paper is addressed to the construction of an optimally bidding for a Micro Grid (MG) that takes part to both day-ahead energy and spinning reserve markets. The work shows that the decision about the amount of power to offer, related to the expected prices and different risk tolerances, must be taken contextually through a joint approach. For that purpose, an optimization problem is formulated. In order to help the decision maker to understand the potential impact of different sub-optimal choices, the model evaluates also the risk associated with the uncertainty of variable power to offer in the both markets. The risk associated is evaluated by the expected utility theory that takes into account the attitude of individuals with regard to risk (adversion, neutrality or propensity) to make decision that minimize negative returns. The effectiveness of the proposed model is assessed through the analysis of a MG composed by traditional power plants, combined heat and power (CHP) plants, and heat production plants (boilers). The presence of storages systems is also accounted for. Moreover, it is considered that both generators and loads can take part in the reserve market and the demand participation happens through both shiftable and curtailable loads.

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Competitive procurement of ancillary services by an independent system operator

Cited by 210 publications

References 1 publication

Appropriate contract durations in the German markets for on-line reserve capacity

Appropriate contract durations in the German markets for on-line reserve capacity

Optimal Scheduling and Real-Time State-of-Charge Management of Energy Storage System for Frequency Regulation

Bidding strategy of a micro grid for the day-ahead energy and spinning reserve markets: the problem formulation

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