电液式交流电动机无级调速装置的研究

本文介绍了电液式交流电动机在工频供电条件下，采用液压技术实现无级调速的原理与方法。论述了液压系统的设计，给出了原理性样机的初步实验结果。该调速装置解决了交流变频无级调速装置造价高、控制部分结构复杂、高速运行时转矩特性变软及工作时对电网有谐波污染等问题。

Research on stepless speed-regulation device for electrohydraulic alternating-current motor

This paper introduces the principle and method of implementing stepless speed regulation by using hydraulic technique under the condition of electric power supply with power frequency in electrohydraulic alternating-current motor. It describes the design of hydraulic system and gives out elementary experimental results of the basic prototype. The speed-regulation device solves such problems of alternating-current frequency-changing stepless speed regulation device as high cost, structure-complicated control,torque softening at high speed run and harmonic interference to electric network in operation.