A Flexible AC Transmission System (FACTS) device which is Static Synchronous Compensator (STATCOM) is commonly use to overcome voltage instability issue. However, the implementation of the STATCOM may cause a voltage increasement within the allowable limits in all areas and maintain the voltage stability of interconnected system. Therefore, this paper proposes an optimum placement of STATCOM to maintain the voltage profile of 150 kV subsystem during the loss of the transmission lines. The proposed methodology is verified by using a 150 kV interconnected system where the loss of two 150 kV transmission lines may lead to a voltage instability in the entire interconnected subsystem. The results show that the proposed method can maintain the voltage stability in the subsystem within the allowable limits in all period.
In electric power systems, it will started from the generation phase until the distribution phase through transmission lines must take place well. The purpose of study is to analyze the implementation in optimizing the power flow and improving stability in Z Power System. Therefore, it is necessary to have sufficient electricity distribution so that the electricity sent can be as efficient as possible. In the Z electric power system, there are many problems in electric power transmission, namely loading on uneven channels and the threat of extinguishing in the event of a disturbance. Uneven load is caused by differences in impedance on the channel. Blackouts occur because the channel on the Z is a generator evacuation route where the area is crucial if a disturbance occurs. Therefore, a tool is needed to prevent it. One solution to this problem is to use a power electronics device called UPFC. The simulation results show an even distribution on the all transmission lines connected to substation of Generators will be decrease up more than 3% of the normal loading. In addition, the UPFC can also improve stability by compensating for the active power and reactive power needed by the system.
In the generator set (genset), the voltage stability system is affected by the excitation system controlled by control circuit called AVR (Automatic Voltage Regulator). One of the important components in the AVR system is the algorithm of the controller. The application of the PID control method has been widely used in the design of AVR controllers. This study applies the GWO-GA (Grey Wolf Optimization - Genetic Algorithm) hybrid method on PID parameters setting. The best transient automatic voltage regulator (AVR) response results were obtained when using the hybrid genetic algorithm - grey wolf optimization (HGAGW) method with a fitness score of 4.3039, the Grey wolf optimization (GWO) method with a fitness score of 4.5059, and the genetic algorithm (GA) method with a fitness score of 6.0214.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.