The problem of stabilization and control of power systems re-presents an important field for power systems control engi-neers. Several techniques have been developed in the literature, to solve this problem. Integrated single-level techniques and hierarchical techniques are considered the two main categories. In this paper, a survey of these methods is presented. Advant-ages and drawbacks of each are given. A recently developed method of decomposition-coordination which leads to a partial feedback control laws is also included. An application to a power system, for comparing the computa-tional time of each method, shows the effectiveness of hierarchical techniques over the single level techniques.