Modelling and Simulation Design of Power System Protection Laboratory

This thesis work represents the simulation modelling of laboratory environment equipped with all the major power system equipment including generator, motor, transformer and load. The whole system is divided into two separate networks, the power system network and the protection network. The power system network is developed on simulation software and protection network system is designed using the protection relays in hardware. The protection system is designed to protect every equipment individually and in a complex network system. All the equipment of power system such as motor, generator, transformer and loads developed using simulations are analysed in normal condition and abnormal conditions. Abnormal conditions are produced intentionally on the simulated network to get the disturbances data. The disturbance data obtained from simulation networks are stored and later used for testing. The disturbances produced in modelling are converted to the format of real disturbance data and loaded in the testing device (Omicron). A real laboratory module is made using all important protection relays to provide every equipment with a fully protected environment. The protection relays are configured with setting according to the simulated network parameters and then the disturbances are injected to see the relays operation time, speed, sensitivity, selectivity, reliability and operational behaviours. This laboratory module will be used for training the customers and partners, its major application is to test a variety of future application which can be created on software and analysed on protection module. During the thesis time period, two real cases were analysed on the protection module and used a similar methodology of thesis work to validate the results. Creating disturbances on a real system is quite difficult and hazardous for equipment to perform in a controllable manner without any damage or wear tear of life expectancy. Secondly, the applications of the network system are so large in number that it’s impossible to build every separate hardware system for testing. But it’s easy to make systems model with software as the equipment parameters can be changed easily without any cost. For designing the protection system, the modelled network and disturbance data is enough to produce more productive solutions