Energy Efficiency Optimization of Multi-Unit System

The maximum power generation of the power generation system and the minimization of energy consumption of the energy consumption system are unified into the same optimization problem, which is the problem of energy efficiency maximization. By analyzing the characteristics of the energy efficiency function, a method for measuring the similarity of energy efficiency between different devices is proposed. A simple method for energy efficiency optimization without establishing an accurate mathematical model of the system is given. It proves the optimal load distribution method between devices with the same energy efficiency, and the optimal load distribution method between different devices with similar energy efficiency. The common point of the two methods is to keep the operating energy efficiency of each operating device equal, Yao's Theorem 1. It also proves the optimal switching method of the number of operating units between the same energy efficiency devices, and the optimal switching method of the operating number of different devices with similar energy efficiency. The common point of the two methods is to keep the switching point at the same point of the overall energy efficiency of the system, or the maximum output value of the device, Yao's Theorem 2.