Expansion of Transmission Networks Considering Large Wind Power Penetration and Demand Uncertainty

Flórez, Carlos Adrián Correa; Garcia, Geovanny Alberto Marulanda; Salcedo, Alejandro Sánchez

doi:10.1109/tla.2016.7459604

Cited by 9 publications

(2 citation statements)

References 14 publications

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“…Consequently, countries that had relied on hydro power face the random variable associated with the river's inflows and, while implementing VRE generation, their power systems become even more attached to stochastic resource availability like wind and solar. Historically, most of South American countries expanded their generation capacity throughout large hydro projects with reservoirs, to help manage the seasonal water availability [1] [2] [3].…”

Section: Introductionmentioning

confidence: 99%

Economic Dispatch Considering Hourly Capacity Allocation with a Variable Renewable and Hydro-Based Generation Portfolio

Vitorino¹,

Ramos²,

Tapia-Ahumada³

et al. 2022

EPE

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The objective of this paper is to assess an economic dispatch considering a power system portfolio, which includes predominant amount of hydro power and increasing quantities of intermittent renewables in relation to the total electric capacity. With growing importance of intermittent wind and solar generation taking part into power systems worldwide, there is need for greater chronological resolution to estimate the flexibility of the power system to offer firm capacity. In this way, a linear optimization model operating hourly is developed to calculate the minimum power system cost, while stablishing the capacity allocation to meet the projected load throughout one-year simulation, as an estimation of how the hourly economic dispatch impacts the scheduling of generators belonging to a power system with this portfolio composition. A central focus is how to operate the available hydro capacity to back up intermittent renewables, evaluating the physical hydro operating constraints, monthly energy balance and maximum power availability. A case study was simulated based on the Brazil's power system configuration, showing that existing hydro capacity provide hourly flexibility to back-up intermittent renewables, potentially saving 1.2 Billion R$, about 3.6% of total system cost referred to 2019. It is worthwhile to realize that the developed methodology can be employed to other power systems with similar capacity portfolio structure for the purpose of calculating its optimum allocation for a specified region and target year.

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Section: Introductionmentioning

confidence: 99%

Economic Dispatch Considering Hourly Capacity Allocation with a Variable Renewable and Hydro-Based Generation Portfolio

Vitorino¹,

Ramos²,

Tapia-Ahumada³

et al. 2022

EPE

View full text Add to dashboard Cite

show abstract

“…Although the problem of wind abandonment has been alleviated to a certain extent, there will still be wind curtailment caused by transmission congestion. Similarly, if only the transmission network expansion planning has carried out (Correa et al, 2016;Gan et al, 2016;Zhang et al, 2019), although the transmission congestion problem is solved, the wind curtailment caused by the lack of system flexibility still exists. Moreover, the downward regulation capacity of the system can be increased through the configuration of energy storage or flexible transformation of thermal power units at the power supply side.…”

Section: Introductionmentioning

confidence: 99%

Storage-Transmission Joint Planning Method to Deal with Insufficient Flexibility and Transmission Congestion

et al. 2021

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The insufficient power system flexibility and transmission congestion are two fundamental reasons for wind power curtailment. As the scale of the wind power in the power system is growing rapidly, the two factors of wind power curtailment events coexist and have a certain coupling relationship. The configuration of the energy storage system can not only increase the flexibility of the system but also alleviate transmission congestion. Therefore, the joint planning of energy storage and transmission grid that takes into account the flexibility of the system and the transmission congestion is of great significance to solve the wind curtailment. Hence, this paper first decouples the insufficient flexibility and transmission congestion wind power curtailment, and quantitatively analyzes the impact of transmission capacity on the coupling relationship between the two; second, reveals the principle of joint planning of energy storage system and transmission congestion, and constructs an optimization model, and proposes to set up the capacity of the wind power which connects the power network. The solution procedure, which deals with grid planning and the energy storage system optimization in turn, not only ensures the accuracy of the model, but also significantly reduces the calculation cost. Finally, a case study of a wind power base in Northeast China and an improved Garver-6 system are carried out to verify the effectiveness of the proposed method.

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A Hybrid Bat-Inspired Algorithm for Power Transmission Expansion Planning on a Practical Brazilian Network

Moraes

Oliveira

Khosravy

et al. 2019

Applied Nature-Inspired Computing: Algorithms and Case Studies

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Expansion of Transmission Networks Considering Large Wind Power Penetration and Demand Uncertainty

Cited by 9 publications

References 14 publications

Economic Dispatch Considering Hourly Capacity Allocation with a Variable Renewable and Hydro-Based Generation Portfolio

Economic Dispatch Considering Hourly Capacity Allocation with a Variable Renewable and Hydro-Based Generation Portfolio

Storage-Transmission Joint Planning Method to Deal with Insufficient Flexibility and Transmission Congestion

A Hybrid Bat-Inspired Algorithm for Power Transmission Expansion Planning on a Practical Brazilian Network

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