Energy Efficiency Optimization of Multi-unit System with Different Devices

TL;DR

This paper presents a unified approach to optimize energy efficiency in multi-unit systems with various devices, using theoretical proofs to determine optimal load distribution and switching strategies without requiring detailed system models.

Contribution

It introduces a novel unified optimization framework and proves optimal load distribution and switching strategies for systems with similar or different device efficiencies.

Findings

Optimal load distribution equalizes device efficiencies.

Optimal switching occurs at maximum load points.

The method applies to systems with similar and different efficiencies.

Abstract

The energy efficiency optimization of the power generation system and the energy efficiency optimization of the energy consumption system are unified into the same optimization problem, and a simple method to achieve energy efficiency optimization without establishing an accurate mathematical model of the system is proposed. For systems with similar energy efficiency, it is proved that the best load distribution method between equipment is to keep the operating energy efficiency of each operating device equal, Yao's theorem 1. It is proved that the optimal switching method for the number of operating units between equipment with different energy efficiency is to keep the energy efficiency of the switching point equal, or at the maximum load point of the equipment, Yao's Theorem 2. This article gives two cases, a system composed of equipment with similar efficiency and a system composed of equipment with different efficiency.