• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

ELECTRIC POWER CONSTRUCTION ›› 2019, Vol. 40 ›› Issue (12): 11-21.doi: 10.3969/j.issn.1000-7229.2019.12.002

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An Organic Rankine Cycle Based Decentralized Transaction Mechanism for Multiple Kinds of Energy

YANG Wentao1, WEN Fushuan1, ZHANG Xian2, CHEN Hao3, GAO Bo3, LI Xuesong3   

  1. 1. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China;2.Beijng Power Exchange Center, Beijing 100031, China;3.Jiangsu Power Exchange Center, Nanjing 210008, China
  • Online:2019-12-01
  • Supported by:
    This work is supported by State Grid Corporation of China Research Program “Research on Electricity Market Interaction Mechanism of Centralized and Decentralized Decision-making in Energy Internet Background and Blockchain Based Distributed Transaction Support Technology” (No. 5108201918043A0000).

Abstract: The development of distributed renewable energy generation could make an electricity user act as an electric power provider as well, i.e. the so-called prosumer. A prosumer can benefit through energy trading. Apart from electricity, natural gas and heat are also widely used as major energy resources in the demand side. With the fast development and commercialization of energy conversion technologies, e.g., the organic Rankine cycle (ORC) and power-to-gas, energy conversion among multiple kinds of energy and decentralized transaction become feasible solutions for improving energy consumption efficiency and promoting social welfare. Given this background, a decentralized transaction mechanism for multiple kinds of energy at the demand side is presented by employing an ORC system. An energy hub framework with an ORC system embedded is firstly presented, and the steady-state mathematical model of the ORC system is developed. The conventional centralized transaction model is then briefly described, and two kinds of decentralized trading mechanisms are presented with respect to the cases with and without a trusted third party involved in the trading process. Trading optimization models are presented on the basis of the developed decentralized trading mechanisms, and the well-established optimization method namely alternating direction method of multipliers (ADMM) is employed to solve the optimization models. Finally, the IEEE 123-node distribution system is employed to demonstrate the presented decentralized trading mechanisms, the economic benefits and technical requirements of energy conversion among multiple kinds of energy through the ORC system are investigated, and comparisons between two decentralized trading mechanisms are carried out.

Key words: distribution system, multiple energy transaction, decentralized optimization, organic Rankine cycle (ORC), alternating direction method of multipliers (ADMM)

CLC Number: