A New Method to Control Dynamic Stability of Power System through Wave Variables and Signal Prediction via Internet
نویسنده
چکیده
the purpose of this article is to improve dynamic stability of power network by using a new method. In this method the entire stability of the network creates from one point and all the stabilizers of power network collect in a PSS bank. The connecting channel between network generators and PSS bank is internet. Expansion and vastness of internet make it easily accessible every where. In the next part, two limitations of internet for the network will be discussed. Then, using two methods of wave variables and signal prediction, these limitations will be improved. The results of simulation prove effectiveness of these methods. Keywordsdynamic stability of power system; wave variables method; signals prediction.
منابع مشابه
Neuro-Fuzzy Based Algorithm for Online Dynamic Voltage Stability Status Prediction Using Wide-Area Phasor Measurements
In this paper, a novel neuro-fuzzy based method combined with a feature selection technique is proposed for online dynamic voltage stability status prediction of power system. This technique uses synchronized phasors measured by phasor measurement units (PMUs) in a wide-area measurement system. In order to minimize the number of neuro-fuzzy inputs, training time and complication of neuro-fuzzy ...
متن کاملModelling and Simulation of Low-Head Hydro Turbine for Small Signal Stability Analysis in Power System
The hydro turbine dynamics have a considerable influence on the dynamic stability of power system. In the study of dynamic stability, the system is modeled by the linear differential equations (small signal analysis). Small signal stability of power systems is needed in all conditions and only is dependent on the conditions of power system performance before commotion occurrence. This paper pr...
متن کاملA Nonlinear Voltage Stability Index based on Vector Analysis Method and Measurements of Active and Reactive Powers of Power System
This paper proposes a new voltage stability assessment method based on vector analysis method. This index extraction process relies on measurements of active and reactive powers from connected buses to the generator buses. Therefore, a limit for beginning of voltage collapse is determined based on the maximum power transfer theory. On the other hand, when the system requires load shedding, a ne...
متن کاملA New Control Method for Single-Phase Grid-Connected Inverter Using Instantaneous Power Theory
Because of installation for local consumers and since it is free of all contaminations, connecting photovoltaic cells to the grid via single-phase inverter is significantly on the rise. In this paper, a new simple current control is proposed for a single-phase grid-connected voltage source inverter. Using the PQ theory and modelling a single-phase system as an unbalanced three-phase system, a m...
متن کاملA new control strategy for SSSC to improve low-frequency oscillations damping
When power systems are expanded and connected together with weak tie lines, the low-frequency oscillations are increased and the stability margin of the power system decreases. Therefore, when designing the transmission system to be used, it is necessary to maintain the dynamic stability of the power system, and to make sure to have the most possible stability margin. SSSC is a FACTS device con...
متن کامل