火电厂节能改造中高压变频调速技术的应用
屈永强
（晋控电力大唐热电山西有限公司，山西 大同 037000）
摘要： 电力行业是国民经济发展的重要支柱，电厂企业生产消耗大量能源。国家绿色生态可持续发展战略的推进，
对电厂企业节能改造提出了更高的要求。火电企业存在大功率辅机电动机耗电高的问题，采用变频技术可实现高压电机
软启动。高压变频技术在中国电厂得到广泛应用，在动态响应等方面具有很大优势，高压变频技术节能可取得巨大经济
效益。介绍了高压电动机变频调速技术，阐述了火电厂高压变频调速方案设计，分析了火电厂高压变频调速技术节能改
造，探讨了火电厂高压变频器改造应用。
关键词： 火电厂；节能改造；高压变频；环保技术
中图分类号： TM621     文献标识码： A     文章编号： 2095-0802-(2022)01-0076-03
Application of High-voltage Variable-frequency Regulating Speed Technology in Energy Saving
Transformation of Thermal Power Plants
QU Yongqiang
(Jinneng Holding Electric Power Datang Thermal Power Shanxi Co., Ltd., Datong 037000, Shanxi, China)
Abstract: The power industry is an important pillar of national economic development. Power plant enterprises consume a lot of
energy. With the promotion of the national green ecological sustainable development strategy, higher requirements are put forward
for the energy-saving transformation of power plant enterprises. Thermal power enterprises have the problem of high power
consumption of high-power auxiliary motor. The soft start of high-voltage motor can be realized by using frequency conversion
technology. High voltage frequency conversion technology is widely used in power plants in China and has great advantages in
dynamic response. High voltage frequency conversion technology can achieve great economic benefits in energy saving. This paper
introduced the high -voltage motor variable -frequency regulating speed technology, expounded the design of high voltage
variable-frequency regulating speed scheme in the thermal power plant, analyzed the energy-saving transformation of high voltage
variable-frequency regulating speed technology in the thermal power plant, and discussed the transformation and application of
high-voltage frequency converter in the thermal power plant.

Key words: thermal power plant; energy -saving transformation; high -voltage variable -frequency; environmental protection
technology