高效智能变频控制器简介

Brief Introduction of High Efficiency Intelligent Inverter Controller

变频器是使电动机通过调速达到节能的专用设备,应用非常广泛,然而其有一个劣势一直无法克服,即变频器在工作时会产生一种谐波,将电能转换成热能,从而烧毁电机,给工程造成难以挽回的损失。现在国际通用的是脉宽调制原理变频技术,即“SPWM”技术,不过却大大消耗了能量。为了解决这一问题,原哈工大电器教研室主任徐会明教授发明了“SHET”特定消谐式变频技术,可以很好的解决变频器谐波烧毁电机问题,且技术先进、节能效率高、造价低、性能优良,经测验可以替代“SPWM”技术。

Inverter is the special equipment to achieve energy saving through speed regulation motor, application is very extensive, but it has a disadvantage has been unable to overcome, when work, namely the inverter produces a kind of harmonic, converts electrical energy into heat energy, thus burning motor, irreparable damage to engineering. Now international is a principle of pulse width modulation frequency conversion technology, namely the SPWM technique, but it consumes energy greatly. To solve this problem, the former director of the teaching and research office of Harbin institute of electrical hui-ming xu professor invented the "SHET" selective harmonic elimination type frequency conversion technology, can well solve the problem of inverter harmonic burning motor, also advanced technology, energy-saving high efficiency, low cost, good performance, the test can replace the SPWM technology.