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Optimal Scheduling of Power System Incorporating the Flexibility of Thermal Units

1
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071003, China
2
Department of Electrical Engineering, North China Electric Power University, Baoding 071003, China
*
Authors to whom correspondence should be addressed.
Energies 2018, 11(9), 2195; https://doi.org/10.3390/en11092195
Received: 25 July 2018 / Revised: 15 August 2018 / Accepted: 17 August 2018 / Published: 22 August 2018
(This article belongs to the Section Electrical Power and Energy System)
Due to the randomness, volatility and intermittent nature of wind power, power systems with significant wind penetration face serious “curtailment” problems. The flexibility of a power system is an important factor that affects the large-scale consumption of wind power. Based on this fact, this paper takes into account the economics and flexibility of the system, and proposes an optimal scheduling method that takes the flexibility of each thermal power unit into account. Firstly, a comprehensive evaluation index system of thermal power unit flexibility is designed by an analytic hierarchy process and entropy method. The system covers the technical indexes and economic characteristics of thermal power units and is able to quantitatively evaluate the different types of thermal power units in the system. Secondly, a multi-objective optimization scheduling model involving the overall flexibility of the unit and the total power generation cost is established. Finally, the correctness and effectiveness of the proposed indicators and models are verified by a case study. View Full-Text
Keywords: high penetration wind power; comprehensive evaluation; flexibility evaluation; multi-objective optimization high penetration wind power; comprehensive evaluation; flexibility evaluation; multi-objective optimization
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MDPI and ACS Style

Guo, T.; Gao, Y.; Zhou, X.; Li, Y.; Liu, J. Optimal Scheduling of Power System Incorporating the Flexibility of Thermal Units. Energies 2018, 11, 2195. https://doi.org/10.3390/en11092195

AMA Style

Guo T, Gao Y, Zhou X, Li Y, Liu J. Optimal Scheduling of Power System Incorporating the Flexibility of Thermal Units. Energies. 2018; 11(9):2195. https://doi.org/10.3390/en11092195

Chicago/Turabian Style

Guo, Tong; Gao, Yajing; Zhou, Xiaojie; Li, Yonggang; Liu, Jiaomin. 2018. "Optimal Scheduling of Power System Incorporating the Flexibility of Thermal Units" Energies 11, no. 9: 2195. https://doi.org/10.3390/en11092195

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