Study on energy efficiency improvement of frequency converter speed control system under weak control strong structure
弱控强架构下变频器调速系统的能效提升方法研究

摘要

在弱控强架构条件下，变频器调速系统面临控制灵活性不足与能效利用率偏低的矛盾。本文通过对系统运行特性与结构约束的分析，提出了一种兼顾能效优化与结构适配的调速方法。研究从电机负载特性、调速策略及能量传递路径入手，结合弱控制策略的容错优势和强架构条件下的稳定性，构建多维度能效提升模型。实验结果表明，该方法能够有效降低系统损耗，提升整体能量利用效率，并在保持运行稳定性的前提下实现功率与效率的协调优化。该研究为弱控强架构环境中的变频器节能控制提供了可行的技术途径。

Abstract

Under weak control with strong architecture conditions, frequency converter speed regulation systems face the contradiction between insufficient control flexibility and low energy efficiency utilization. This paper proposes a speed regulation method that balances energy efficiency optimization with structural adaptability through analysis of system operating characteristics and structural constraints. Starting from motor load characteristics, speed regulation strategies, and energy transfer paths, the study integrates the fault-tolerant advantages of weak control strategies with the stability under strong architecture conditions to construct a multi-dimensional energy efficiency improvement model. Experimental results demonstrate that this method effectively reduces system losses, enhances overall energy utilization efficiency, and achieves coordinated optimization of power and efficiency while maintaining operational stability. This research provides a feasible technical approach for energy-saving control of frequency converters in weak control with strong architecture environments.