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Applied energy v.189, 2017년, pp.534 - 554   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Risk-aware short term hydro-wind-thermal scheduling using a probability interval optimization model

Chen, J.J. (School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255000, China ) ; Zhuang, Y.B. (Bussiness School, Shandong University of Technology, Zibo 255000, China ) ; Li, Y.Z. (School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang, 639798 Singapore, Singapore ) ; Wang, P. (School of Computer Engineering, Nanyang Technological University, Nanyang, 639798 Singapore, Singapore ) ; Zhao, Y.L. (School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255000, China ) ; Zhang, C.S. (School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255000, China ) ;
  • 초록  

    Abstract Due to the uncertainty of wind power and complex constraints of available hydro, short term hydro-wind-thermal scheduling (HWTS) is one of the most difficult optimization problems in the operational planning of power systems. This paper presents a risk-aware optimization model, named probability interval optimization (PIO), to reliably evaluate the HWTS from the perspective of risk and profit. In PIO, the uncertain wind power is deemed as a probability interval variable, the risk of wind power is assessed by its probability distribution, and the profit is manifested by the decrease of generation cost between the same system with and without wind power integrated. For solving the PIO model, an evolutionary predator and prey strategy (EPPS) is proposed in this paper. The EPPS focuses on dynamically adjusting the algorithm’s exploration and exploitation abilities by introducing an escaping mechanism and a classification mechanism. In addition, a heuristic repair mechanism, instead of penalty function approach, is applied to handle the complex equality and inequality constraints of HWTS. Simulation studies based on three HWTS systems demonstrate that the risk-aware PIO model is well reliable and applicable to solve HWTS considering the uncertain wind power integrated, the EPPS algorithm can obtain superior solutions in comparison with other recently developed algorithms, and the heuristic repair mechanism is efficient for dealing with complex constraints of HWTS. Highlights A probability interval optimization (PIO) model for short term hydro-wind-thermal scheduling (HWTS) is developed. An evolutionary predator and prey strategy (EPPS) is presented for solving the PIO model. A heuristic repair mechanism is developed to handle the complex constraints of HWTS. The reliability and applicability of the PIO and EPPS are examined respectively.


  • 주제어

    Hydro-wind-thermal scheduling (HWTS) .   Risk-aware .   Probability interval optimization (PIO) .   Evolutionary predator and prey strategy (EPPS) .   Distribution probability.  

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