Optimum Spacing at Precise Magnetic field Among Power Lines in Egyptian Utility Applying Efficient Optimization Techniques

This research aims to calculate the optimal dimension between adjacent EHV lines in Egyptian grid. The paper presents three EHV power lines. The primary two lines have an identical dimension with a potential of 220 kV, a double circuit, and two bundles while the secondary line is single circuit of five hundred kilo voltages and three bundles. The magnetic field at the datum level for the presented lines is calculated by utilizing the current simulation technique (CST). Three different optimization techniques are utilized to acquire the optimum dimension between the presented power lines; these are the Harmony Search Technique (HST), the Particulate Swarm Optimization (PSO), and the Firefly Technique (FT). Varying the sequence of every line and the spacing between them influences the final field values of the presented lines. The consequences show that the harmony search technique is the best comparing the other techniques.