基于无量纲时域状态误差准则的最佳阻尼控制系统及设计

Optimal-damping control system based on criterion of state errors in non-dimensional time domain and their design

在无量纲时域中,把状态误差的广义二次型性能指标转换成结构参数(阻尼向量)的优化问题,从而得到一种稳定裕度大、振荡次数少、超调小、调节时间短的最佳参数系统———最佳阻尼控制系统。其二阶系统的设计极为简单 ,三阶系统须采用伴随因子法设计 ,当应用于同步电机的励磁调节设计时 。

In the non_dimensional time domain,the generalized quadratic performance criterion of error state is transited into the optimal problem of structural parameters (damping vector),thus to get an optimal parameter system_optimal damping control system with big margin for stability,little number for oscillation,small overshoot and small setting time.The design of the two order system is very simple and the three order systems have to use the adjoin factor method.Based on models of these control systems,the small signal performance indexes of excitation control systems for synchronous machines may satisfy the demands recommended in international standards.