CAJ | 학술논문

将backstepping方法与直接模糊方法相结合来研究多机电力系统汽门开度控制的稳定性问题。控制器设计过程中未对系统进行任何的线性化，所以保留了系统原有的非线性特性，而且用模糊逻辑系统逼近系统中未知的参数以及耦合项部分，最后基于 Lyapunov 理论证明系统的状态变量都是有界的，从而达到整个系统的稳定。用MATLAB对两机系统进行仿真，仿真结果表明，所设计的控制器最终能使系统达到稳定。
장backstepping방법여직접모호방법상결합래연구다궤전력계통기문개도공제적은정성문제。공제기설계과정중미대계통진행임하적선성화，소이보류료계통원유적비선성특성，이차용모호라집계통핍근계통중미지적삼수이급우합항부분，최후기우 Lyapunov 이론증명계통적상태변량도시유계적，종이체도정개계통적은정。용MATLAB대량궤계통진행방진，방진결과표명，소설계적공제기최종능사계통체도은정。
The transient stability problem on multi-machine power system was studied by the means of backstepping control and direct fuzzy logic method. Since the process of the controller design has been without any linearization, the nonlinear property of the dynamic is preserved. And fuzzy logic system was used to approximate the unknown function. For the system state variables were verified to be all bounded based on Lyapunov theory, the complete system was of stability. Both systems were simulated with MATLAB. The simulated result shows that the controller designed hereby is able to cause the system to reach stability.