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Comision Federal de Electricidad (CFE), is the Mexican Power Utility, with several thousand kilometers of 230 and 400 kV transmission lines built along the country: 26,915 km and 23,627 km, respectively as per June 2013, which are considered as the main transmission line voltages. These lines, seriously affected by lightning and whose performance has been very poor, were chosen to be protected with...
An approach for the simultaneous tuning of fuzzy power system stabilizers (FPSSs) using the recently introduced Bat Algorithm (BA) optimization technique is presented. FPSSs used in the study are based on a simple fuzzy control algorithm, where a minimum number of controller tuning parameters are required. The FPSSs design problem is formulated as a constrained optimization problem, with a time domain...
Inter-area oscillations are inherent to power systems. This type of oscillations is characterized by a group of generators in one are of the system oscillating against other group located in another area. Since power systems are subjected to a wide range of disturbances, the damping associated with those oscillations may be drastically modified and the system security may be compromised. Thus, identifying...
The application of simple fuzzy power systems stabilizers (SFPSSs) to enhance the damping of inter-area oscillations of the Mexican Interconnected System (MIS) is presented. In particular, the work is focused on improving the damping of one of the most critical oscillation modes of the MIS: the north-south inter-area mode. The SFPSSs used in this work are characterized by a significantly reduced fuzzy...
A simplified fuzzy logic controller (SFLC) with a significantly reduced set of fuzzy rules, small number of tuning parameters and simple control algorithm and structure is presented. The SFLC is derived from a two-dimensional and symmetrical rule table commonly used in fuzzy control applications. In the phase-plane, the required control action magnitude is proportional to the distance from the state...
A neurofuzzy controller (NFC) with adaptive input link weights (ILWs) and working as an adaptive power system stabilizer is presented. The control structure of the proposed adaptive neurofuzzy power system stabilizers (ANFPSSs) consists of a neuroidentifier to track the dynamic behavior of the plant and an NFC to damp the low-frequency power system oscillations. Usually, the input membership functions...
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