RESILIENT POWER SUPPLY OF A MICROGRID

The study analyses the operating scenarios of the equipment that make up a designed microgrid system. The aim of the study is to highlight the resilience of the power supply to user receivers. Thus, a system was designed and configured to manage the equipment operating sequence according to the desired priority in order to enhance resilience. To this end, power supply solutions from the public grid, from a Diesel generator, from energy storage batteries and from fuel cell were explored. The software developed ensures the supply of microgrid receivers by programming the existing sources appropriately. The basic scheme is to supply from a Diesel generator given that, because of the distance to the public grid it becomes uneconomical and does not ensure the quality of the supply service. The microgrid receiver power supply scheme takes into account the specific operating conditions for critical receivers, priority receivers and common receivers (non-priority). The management of the equipment power system is done with a PLC (programmable logic controller) and the measurement of the microgrid parameters will be provided by the Grid Analyzer and HMI (human machine interface).