一种新的数字调速器的设计及实验

Design and Experiment Study of a New Type of Digital Governor

目的研制用于柴油发电机组的数字调速系统．方法采用单片机技术，用直流永磁伺服电机作为执行器组成新的调速系统。使用变速积分ＰＩＤ算法，合理选择控制周期，达到了稳速控制，可在７００～１５００ｒ．ｍｉｎ－１范围内取得较好的调速指标．结果在北京内燃机总厂生产的Ｘ４１１５Ｔ１柴油机上的试验表明该数字调速器稳态调速率达到０％；瞬态调速率达到２．５％；转速稳定时间为２ｓ．已经达到或超过国标ＧＢ３７４５－８３的指标要求．结论数字调速系统采用位置和转速双闭环控制，动态特性良好，调速精度高，应用灵活。

Aim\ To research a new type of the digital governor for diesel engine generator Methods The new governor system consisted of a single chip computer and servemotor It adopted the PID algorithm with change velocity integral and chose rational control period So this system could reach good governing target within 700～1500r min -1 and achieved constant speed control of governor Results Experiments on X4115T1 diesel showed that the digital governor reached or exceeded the index of GB3745 83 The steady governing efficiency was 0%, instantaneous governing efficiency was 2 5%, and the poise time was 2s Conclusion The digital governor adopting close ring control system with the position and speed feedback takes on the following properties: good dynamic characteristic, high precision and agile application