Comparative study on impacts of wind profiles on thermal units scheduling costs

Albadi, Mohammed; El-Saadany, Ehab F.

doi:10.1049/iet-rpg.2009.0101

Cited by 54 publications

(58 citation statements)

References 26 publications

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“…First, most of these results are based on specific case studies [12], [13] and do not allow generalization [14]. Moreover, most of the studies are limited to a single control function of balancing operations; often either unit commitment or economic dispatch.…”

Section: Introductionmentioning

confidence: 99%

“…sThis restricts the scope of the results to the time scale of the chosen function, and neglects the fact that VERs introduce variability at all timescales [16], [17]. Furthermore, most of the studies are limited to statistical calculations, which are yet to be validated by simulations [4], [14]. Of these, some are limited to considering either only variability of the net load [18]- [20] or only its forecast error [21]- [24].…”

Section: Introductionmentioning

confidence: 99%

“…Those wind power integration studies that do use simulation usually do so for a particular study area [25]. References [14], [19] implement only unit commitment models, according to the assumption that wind integration has the biggest impact on unit commitment. Finally, many of the calculations are based upon the experience of system operators which may not necessarily remain valid as the power system continues to evolve.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Enterprise Control Assessment Method for Variable Energy Resource-Induced Power System Imbalances—Part II: Methodology

Muzhikyan

Farid

2015

IEEE Trans. Ind. Electron.

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Abstract-In recent years, an extensive academic and industrial literature has developed to determine how much such variable energy resources (VER) may be integrated and how to best mitigate their impacts. While certainly insightful within the context of their application, many integration studies have methodological limitations in that they are case specific, address a single control function of power grid balancing operations, and are often not validated by simulation. This paper presents a holistic method for the assessment of power grid imbalances induced by variable energy resources based upon the concept of enterprise control. It consists within a single package a three layer enterprise control simulator which includes most of the balancing operation functionality found in traditional power systems. The control layers include a resource scheduling layer composed of a security-constrained unit commitment, a balancing layer composed of a security-constrained economic dispatch, and a regulation layer. The proposed method is validated by a set of numerical simulations. The sequel to this paper submitted to the same issue provides a set of extensive results that demonstrate how power grid balancing operations systematically address variable energy resource integration.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Enterprise Control Assessment Method for Variable Energy Resource-Induced Power System Imbalances—Part II: Methodology

Muzhikyan

Farid

2015

IEEE Trans. Ind. Electron.

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“…Considering the uncertainties of actual FWPG, p A,w , the probabilistic constraints in (36) and (37) are replaced by the chance-constrained formulations [30,31], shown as below:…”

Section: Chance-constrained Economic Dispatch Model In the Wind-thermmentioning

confidence: 99%

A Chance-Constrained Economic Dispatch Model in Wind-Thermal-Energy Storage System

Yang

et al. 2017

Energies

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Abstract:As a type of renewable energy, wind energy is integrated into the power system with more and more penetration levels. It is challenging for the power system operators (PSOs) to cope with the uncertainty and variation of the wind power and its forecasts. A chance-constrained economic dispatch (ED) model for the wind-thermal-energy storage system (WTESS) is developed in this paper. An optimization model with the wind power and the energy storage system (ESS) is first established with the consideration of both the economic benefits of the system and less wind curtailments. The original wind power generation is processed by the ESS to obtain the final wind power output generation (FWPG). A Gaussian mixture model (GMM) distribution is adopted to characterize the probabilistic and cumulative distribution functions with an analytical expression. Then, a chance-constrained ED model integrated by the wind-energy storage system (W-ESS) is developed by considering both the overestimation costs and the underestimation costs of the system and solved by the sequential linear programming method. Numerical simulation results using the wind power data in four wind farms are performed on the developed ED model with the IEEE 30-bus system. It is verified that the developed ED model is effective to integrate the uncertain and variable wind power. The GMM distribution could accurately fit the actual distribution of the final wind power output, and the ESS could help effectively decrease the operation costs.

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“…When the net generation is higher than the net demand, the system frequency increases and vice versa (Zhu 2015). The total loads in power systems experience different chronological variations: seasonally, on weekends and weekdays, and within each day (during peak and off-peak hours) (Albadi and El-Saadany 2011). Variations in demand occur even on a second-by-second basis.…”

Section: Introductionmentioning

confidence: 99%

Effect of Considering Transmission Losses in Economic Dispatch – A Case Study of Oman’s Main Interconnected System

et al. 2018

Self Cite

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Economic dispatch is an important optimization problem in power system planning. This article presents an overview of the economic dispatch formulation, its objective, loss coefficient determination, and a case study. In the case study, different scenarios of the economic dispatch in the main interconnected system (MIS) of Oman were considered to highlight the importance of considering losses in the optimization process.

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Comparative study on impacts of wind profiles on thermal units scheduling costs

Cited by 54 publications

References 26 publications

An Enterprise Control Assessment Method for Variable Energy Resource-Induced Power System Imbalances—Part II: Methodology

An Enterprise Control Assessment Method for Variable Energy Resource-Induced Power System Imbalances—Part II: Methodology

A Chance-Constrained Economic Dispatch Model in Wind-Thermal-Energy Storage System

Effect of Considering Transmission Losses in Economic Dispatch – A Case Study of Oman’s Main Interconnected System

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