Abstract
The electrical components of a power system network take advantage to supply, transmission and service electrical power. Abnormal flow of voltage through the transmission lines might lead to big causes. Thyristor controlled series compensator (TCSC) devices are most frequently used device in the power to maintain the voltage stability. However, this device is costlier and cannot be fixed on every transmission line which would lead to more processing cost. Thus, the maintaining voltage stability of transmission lines with reduced production cost attracts a various researcher to find the novel approaches. In the existing system, to improve the stability of power system and minimize the losses by include the reactive power through TCSC device at applicable location by the algorithm of particle swarm optimization is available with the help of line stability index value. The PSO is constrained to poor exploitation problem which might generate inaccurate results. In the proposed research work, Biogeography Based Krill Herd (BBKH) method is used for optimal identification of TCSC's, STATCOM and UPFC size and location. Voltage collapse proximity indicator (VCPI) value is used in this work for the finding of the voltage instability measurement by finding the critical lines among the entire transmission lines. The proposed research effort is implemented in IEEE 39 test bus system using MATLAB software and verified, it furnishes improved outcome than other investigation methodologies.
Highlights
In the modern power system network, power system is operating nearby to the limit of stability
This comparison evaluation is done against various performance metrics, for example, a) Cost – Total cost consumed for setting up overall device configuration and the processing cost consumed. b) Voltage collapse proximity indicator – This method is depending on reactiveness of the load variation in any particular bus is indicated by varying the reactive demand
Voltage collapse proximity indicator (VCPI) value is based on maximum power transferred. c) Voltage level – it is referring as maintain the voltage level after it subject to disturbance
Summary
In the modern power system network, power system is operating nearby to the limit of stability. Voltage instability occurs majorly due to inadequacy of the power system accommodated the expanding need of the reactive power [1]. In this research work novel approach is introduced which focus on controlling the voltage stability which occurs due to various contingent effects. By controlling the voltage stability, homes and industries can be supplied with their voltage. This is done by using the TCSC devices by fixing it across the transmission lines in which more fluctuation is happening. The overall analysis of the work is shown below: The first part is general introduction about the power system and the need of voltage stability maintenance is given. Various related research work which has been conducted in terms of maintenance of voltage stability is shown. Overall research of the work is concluded
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