涡轴发动机多发功率匹配控制研究

Research on Power Matching Control of Multiple Turbo-shaft Engines

为解决涡轴发动机多发匹配控制问题,通过分析恒转速控制条件下多发匹配控制机理,以串级控制方案为基础,提出了1种适用于装有多台涡轴发动机的直升机的功率匹配控制策略。该策略通过飞行员手动切换匹配模式,兼顾直升机传动系统、发动机的寿命均衡和单发性能退化等因素,实现发动机间的功率匹配。桌面、半实物试验及配装直升机试飞试验的结果表明,提出的多发功率匹配控制策略简单、有效,能够实现多台发动机之间的功率匹配,并具有较强的工程应用价值。

In order to solve the problem of power matching control of multiple turbo-shaft engines,based on the analysis of the multiple power matching control mechanism under the constant rotational speed control condition,a kind of matching control strategy for helicopters fitted with multiple turbo-shaft engines was proposed on the basis of cascade control scheme.The strategy can realize the power matching by switching the matching mode manually,taking into account the factors such as the helicopter transmission system,the life balance and the single performance degradation.The results of desktop test,hardware-in-the-loop test and helicopter flight test show that the proposed multiple power matching control strategy is simple and effective,it can realize power matching between multiple engines,and has strong engineering application value.