Combined heat and power systems (CHPs) have received much attention in recent years due to increasing use of bio-fuels and distributed generation (DG). Conventionally, they are connected to the power grid to balance electrical demands and supplies. This research investigated an off-grid (stand-alone) biofuel micro CHP system with hybrid energy storage (HES) (including battery banks and super-capacitors) by developing an energy management strategy based on dynamic programming (DP). DP is an optimization strategy which has been applied to energy systems in recent years. However, they suffer from dimension problems when the number of variables increases. This work is the first attempt to apply the decision tree (DT) to multi-dimension DP solutions in energy systems. The energy efficiency is improved from 45.77% to 57.97% using diesel-biofuels and the system has a potential for commercial applications. The experimental test results validate its feasibility and effectiveness.

近年来，由于越来越多地使用生物燃料和分布式发电（DG），热电联产系统（CHP）受到了广泛关注。通常，它们连接到电网以平衡电力需求和供电。这项研究通过开发基于动态规划（DP）的能源管理策略，研究了具有混合能源存储（HES）（包括电池组和超级电容器）的离网（独立）生物燃料微型CHP系统。DP是一种优化策略，近年来已应用于能源系统。但是，当变量数量增加时，它们会遇到尺寸问题。这项工作是将决策树（DT）应用于能源系统中多维DP解决方案的首次尝试。能源效率从45.77％提高到57。97％的人使用柴油生物燃料，该系统具有商业应用潜力。实验测试结果验证了其可行性和有效性。