从功率因数提高的角度研究变频器的节能原理

摘要

Power factor is a key indicator of corporation in electricity-using targets. It will improve power factor effectively by rational allocation of the inverter in power system, so the work will have great theoretical and practical significance, which study- ing with the relationship between power factor and the energy-saving principle of the inverter. This article which combines with the mechanical features of AC asynchronous motor will make a study of the inverter’s energy-saving principle through the increase- ing of power factor. There will have some specialties theoretic direction on using inve- rter better and achieving more effect in energy-saving.%功率因数是考核企业用电情况的一个主要指标。合理配置变频器将有效提高用电系统功率因数，因此研究功率因数与变频器节能原理之间的内在关系，就有着重大的理论和现实意义。本文将结合交流异步电动机机械特性，以提高功率因数为切入点，研究变频器的节能原理，为科学使用变频器，更好实现节能工作，做出相应的理论指导。