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前言互联系统频率及联络线功率的控制不仅应考虑稳态的经济运行,同时也应考虑这一系统的动态响应以及在功率调整中的经济性即燃料的最低消耗。所以互联系统频率及联络线功率如何控制得更为有效,以便获得满意的性能指标,的确是一个非常重要的课题。六十年代以来发展起来的现代控制理论以及计算机的广泛应用,为最佳控制的实现提供了必要和充分的条件。最佳控制系统设计应包括性能指标的选择以及获得受条件约束的最佳控制设计两个部分。性能指标是控制系统中衡量某物理量偏离理想状态的尺度。如果我们所选定的控制决策
Preface The control of the interconnected system frequency and tie line power should take into account not only the steady-state economic operation, but also the dynamic response of the system and the economy in power adjustment, ie the minimum fuel consumption. Therefore, how to control the frequency of the interconnection system and the power of the tie line to be more effective so as to obtain the satisfactory performance index is indeed a very important issue. The modern control theory developed since the 1960s and the extensive application of computers have provided the necessary and sufficient conditions for the realization of optimal control. The best control system design should include the selection of performance indicators and the optimal control design subject to constraints. The performance index is a measure of the deviation of a physical quantity from the ideal in a control system. If we choose the control decision