Impact of Generation Flexibility on the Operating Costs of the Taiwan Power System Under a High Penetration of Renewable Power

Wu, Yuan‐Kang; Tan, Wen; Huang, Si-Ru; Chiang, Yu-Shuang; Chiu, Chui-Pin; Su, Chun‐Lien

doi:10.1109/tia.2020.2974435

Cited by 24 publications

(14 citation statements)

References 37 publications

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“…Also, it can eliminate the negative impacts of the high penetration of PVGUs in LVDNs 84 . Many technologies can enhance system flexibility, such as flexible generators, demand response, energy storage system, network reconfiguration, and optimal, efficient system operations 85 …”

Section: Impact Of Excessive Penetration Of Pv Systems In Lvdnsmentioning

confidence: 99%

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Hamza

Sedhom

Badran

2021

Int Trans Electr Energ Syst

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This paper presents an overview of the impact of high penetration of photovoltaic (PV) systems in low-voltage distribution networks (LVDNs). High integration of solar PVs in the LVDNs has severe implications on the system parameters, efficiency, and stability. This paper also introduces the methods that have been driven to overcome these effects to preserve the steady-state conditions in the system during excessive penetration of PV generation units. A comparison between the contributions and shortcomings of the most recent researches for overvoltage mitigation strategies has been driven. Also, it includes comparing different overvoltage mitigation methods to handle the impact of the overvoltage under high penetration of PV units in the LVDNs. Besides, it presents a comparison between overvoltage mitigation methods based on their pros and cons.

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Section: Impact Of Excessive Penetration Of Pv Systems In Lvdnsmentioning

confidence: 99%

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Hamza

Sedhom

Badran

2021

Int Trans Electr Energ Syst

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“…Oree and Hassen [42] extended this idea, with an index combining 8 metrics mentioned in the previous paragraph, weighted using an analytic hierarchy process. This approach was also employed by Wu et al [43]. A different way of condensing this information was suggested by Nosair and Bouffard [5]: for individual time steps, they maximised a FS's upward and downward deviation from a scheduled output, subject to maximum and minimum power output, ramping and energy constraints.…”

Section: How Flexible Is My Flexibility Solution?mentioning

confidence: 99%

“…One option is simply to aggregate flexibility indices of individual FS's. This has been performed in various ways by several aforementioned studies [5,6,18,42,43].…”

Section: How Flexible Is My Power System?mentioning

confidence: 99%

Quantifying power system flexibility provision

Heggarty

Bourmaud²,

Girard

et al. 2020

Applied Energy

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In power systems, flexibility can be defined as the ability to cope with variability and uncertainty in generation and demand. The ongoing energy transition is affecting how much flexibility is required, but also who should provide it: some existing solutions are being phased out, while new solutions' entire business models are based on providing flexibility (e.g. storage or demand response). With the intention of condensing information and rationalising debates, a significant number of methods have been proposed to quantify various facets of flexibility; this paper reviews and classifies them depending on the question they attempt to address. We propose a pair of novel tools to quantify a comparatively unexplored aspect of flexibility: who is providing it. These frequency spectrum analysis based tools separately quantify flexibility provision on the annual, weekly and daily timescales. The tools' effectiveness and versatility is demonstrated through several example applications, analysing both historical and prospective power systems, in several geographical locations with contrasting characteristics. The proposed tools are of particular value to the capacity expansion planner, allowing them to quantify changes in flexibility provision as new solutions are introduced, or as carbon taxes, generation and interconnector capacities evolve.

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“…B. Mohandes et al [1] reviewed various indices that are commonly used in the literature to express power system flexibility, which covers ramping limit, power capacity, and energy capacity. Furthermore, Y. K. Wu et al [2] quantified the flexibility of a power system with analytic hierarchy process method and considered flexible generation units in unit scheduling problems. F. Pourahmadi et al [3] studied the impact of wind generation temporal correlation on power system flexibility and the uncertainty interval of wind generation.…”

Section: Introductionmentioning

confidence: 99%

Planning of Flexible Generators and Energy Storages under High Penetration of Renewable Power in Taiwan Power System

Tan

Chiang

et al. 2022

Energies

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The proportion of renewable power generation in the world has been increasing in recent years. However, the fluctuations and uncertainties of renewable power generation bring a considerable challenge to future unit scheduling. Therefore, the generation flexibility in power systems becomes more critical as a large amount of renewable generation is integrated into power systems. The use of flexible generators with energy storage systems is one of the most efficient methods of improving power system flexibility. The primary purpose of this study is to explore the effect of generation flexibility on the cost of unit scheduling. A flexibility index is used to evaluate the generation flexibility in the Taiwan power system, and a multi-scenario analysis for renewable power integration is considered. This study also considers various system constraints, such as the unit commitment of actual hydro and thermal units, the scheduling of flexible internal combustion engines (ICEs) and energy storage systems, and possible curtailments of renewable power generation. According to the seasonable characteristics of renewable power generation, this study provides a suitable capacity for flexible ICE units and energy storage systems. Furthermore, this study demonstrates that the cost of unit scheduling is effectively reduced by increasing flexible ICE units and energy storage systems. The results of this study can be used as a reference for power systems in preparing flexible generating units and energy storage systems under the integration of a large amount of renewable power generation in the future.

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Impact of Generation Flexibility on the Operating Costs of the Taiwan Power System Under a High Penetration of Renewable Power

Cited by 24 publications

References 37 publications

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Quantifying power system flexibility provision

Planning of Flexible Generators and Energy Storages under High Penetration of Renewable Power in Taiwan Power System

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