Distributed Peer-to-Peer Energy Trading for Residential Fuel Cell Combined Heat and Power Systems
Distributed Peer-to-Peer Energy Trading for Residential Fuel Cell Combined Heat and Power Systems
复制标题
DOI：
10.1016/j.ijepes.2020.106533
复制
发表时间：
2020-09
期刊：
影响因子：
--
通讯作者：
D. H. Nguyen;T. Ishihara
中科院分区：
文献类型：
--
作者：
D. H. Nguyen;T. Ishihara
研究了一组微型燃料电池热电联产住宅的最优能源管理问题。为了提高这些地方社区的自给自足和弹性，提出了住宅之间的P2P能源交易系统，在该系统中，燃料电池在额定功率下工作的输出功率可以出售给已经达到额定输出但仍然缺乏电力的家庭。由于功率和热效率对燃料电池输出功率的非线性依赖，该最优P2P能源交易系统的优化问题是非凸的。因此，提出了一种线性化方法来对问题进行凸化。在此基础上，提出了一种分布式ADMM方法来并行求解各住宅的凸优化问题。然后提出了一个基于现实电力消耗数据的六组住宅的案例研究，以证明所提出的方法的性能和P2P能源交易系统的积极影响。更具体地说，所提出的分布式ADMM方法具有相当快的收敛速度，并且可以很好地随系统大小进行扩展。此外，P2P电力交易系统有助于提高燃料电池的效率，并增加此类住宅的自给自足。
This paper studies the optimal energy management in a group of dwellings having micro fuel cell combined heat and power systems. To increase the self-sufficiency and resilience of such local community, a P2P energy trading system between dwellings is proposed in which output powers from fuel cells working under their rated powers can be sold to those already reach their rated outputs but still lack powers. The arising optimization problem from this optimal P2P energy trading system is non-convex due to the nonlinear dependence of power and heat efficiencies on fuel cell output power. Therefore, a linearization method is proposed to convexify the problem. Consequently, a distributed ADMM approach is introduced to solve the convexified optimization problem in parallel at each dwelling. A case study for a group of six dwellings based on realistic electric consumption data is then presented to demonstrate the proposed approach performance and positive impacts of the P2P energy trading system. More specifically, the proposed distributed ADMM approach is reasonably fast in convergence and is scalable well with system size. In addition, P2P electricity trading system helps operate fuel cells at a higher efficiency and increase the self-sufficiency of such dwellings.