One of the issues of reliable performance in the power grid is the existence of electromechanical oscillations between interconnected generators. The number of generators participating in each electromechanical oscillation mode and the frequency oscillation depends on the structure and function of the power grid. In this paper, to improve the transient nature of the network and damping electromechanical fluctuations, a decentralized robust adaptive control method based on dynamic programming has been used to design a stabilizing power system and a Complementary static var compensator (SVC) controller. By applying a single line to ground fault in the network, the robustness of the designed control systems is demonstrated. Also, the simulation results of the method used in this paper are compared with controllers whose parameters are adjusted using the PSO algorithm. The simulation results show the superiority of the decentralized robust adaptive control method based on dynamic programming for the stabilizing design of the power system and the Complementary SVC controller. The performance of the control method is tested using the IEEE 16-machine, 68-bus, 5-area is verified with time domain simulation.

In this article, the Zariski topology is extended as the Zariski-countable topology. This imposes a new kind of manifolds using the countable-Complement topology that the algebraic varieties are the analytic case of them. The advantage of this work is to convert any non-countable field to a topological field by Zariski-countable topology. This conversion is not possible by the usual Zariski topology.

Object Complement construction as one of the most important and challenging categories of grammar has been noticed by linguists and grammarians from past to present. The present study investigates the Object Complement construction based on three basic hypotheses: Small Clause Theory, Predication Theory, and Complex Predicate Theory. Most of the linguists and grammarians who have studied Object Complement construction in the Persian language have presented a similar view of the Predication theory. The findings of this study revealed that the analysis of the Object Complement construction within the framework of Predication Theory is incompatible with the principles of the Government and Binding theory and Minimalist Program, such as the Theta criterion, Projection principle, and Uniformity of Theta Assignment Hypothesis (UTAH). The analysis of the mentioned construction based on the complex predicate theory on the one hand ignores the principle of linguistic economy and productivity process by increasing the number of compound verbs in Persian, and on the other hand, it ignores the propositional relationship between the Object Complement construction and the preceding noun phrase. In the following, based on small clause theory and arguments such as argument alternation, selection restriction, the ambiguity of the interrogative complex sentences, occurrence in different syntactic contexts, idiom chunk, agreement, paraphrasing, sentence fragment, scrambling, gapping pronominalization,  and the distribution of NP-types as subjects of small clause construction was shown Object Complement together with the preceding noun phrase should be considered a single constituent as a small clause.