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以原物理系统(调速器- 喷油泵- 柴油机)为基础,增加一个能功转换环节来考虑燃料经燃烧、膨胀作功过程的影响,建立了一个四元调速系统功能模型,能够更加精确地描述机械式调速系统的工作机理;利用自动控制理论对调速系统的稳定性进行判断,以一典型的柴油发电机组(装配RSV型调速器)标定工况“突卸”试验为对象,对调速系统的动态调节过程进行了计算机仿真,计算结果与瞬时转速实测曲线较为一致,表明理论分析方法是正确、有效的;另外,在模拟计算基础上,运用质量向量法对调速系统的动态调节过程进行了参数优化,以揭示设计参数对系统性能的影响,从而获得最佳的设计方案。
Based on the original physical system (governor - injection pump - diesel engine), an energy transformation step was added to consider the influence of fuel combustion and expansion process. A four-element speed control system functional model was established, which could be more accurate Describe the working mechanism of the mechanical governor system; use the automatic control theory to judge the stability of the governor system, take a typical diesel generator (equipped RSV governor) calibration condition “dump” test as the object , The dynamic adjustment process of speed control system was simulated by computer. The calculation results are in good agreement with the actual measured curves of instantaneous speed, indicating that the theoretical analysis method is correct and effective. In addition, based on the simulation calculation, The dynamic adjustment process parameters were optimized to reveal the impact of design parameters on system performance, so as to obtain the best design.