Managing Power Quality in this scenario the DSO is responsible for defining production limits and energy quality parameters for the MV DER. When deviations from these limits are detected, the DSO will react – either by switching off the production unit entirely or adjusting the power production set points – to make sure that the injected power will not have a negative impact on the grid stability.
Managing Power Quality. (Voltage Control) 1. The DSO responsible for defining (‘Load Forecast Data’ and possibly ‘Configuration Data’) and controlling (actual ‘Sensor Data’, current ‘Set Points’ and other ‘Monitoring Data’) the generation power and the Power Quality parameters for the producer. The generated power (‘Set Points’) may be dynamic to limit the feed-in power. 2. The producer should be able to access the information of its facility by means of the HMI of its DER RTU, to know the current status of its operation (actual ‘Sensor Data’, current ‘Set Points’ and ‘Monitoring Data’) and the defined Power Quality parameters as well as the energy production limits (Set Points’). 3. The parameters of the energy and power generated by the producers are monitored (actual ‘Sensor Data’, current ‘Set Points’ and other ‘Monitoring Data’) by the DSO. In case the quality parameters do not fit into the defined frame (‘Load Forecast Data’ and possibly ‘Configuration Data’) the reactions according to the strategy are applied (‘Set Points’); In case the generated power limit (‘Load Forecast Data’ and possibly ‘Configuration Data’) is exceeded (by ‘Sensor Data’), or the Power Quality parameters are not within the limits, the DSO reacts by adjusting the generation power (‘Set Points’) to bring the feed-in power or the Power Quality parameters according to the limit (‘Load Forecast Data’ and possibly ‘Configuration Data’) or by disconnecting the generation unit from the grid. Scenario 2: Balancing MV renewable generation centrally 1. The DSO monitors (actual ‘Sensor Data’, current ‘Set Points’ and other ‘Monitoring Data’) the power generation and consumption of all the customers. This information is aggregated in the DSO SCADA system. 2. The SCADA system has information (‘Load Forecast Data’) about the forecast of the energy consumption and production for a specific period of time. 3. The SCADA system is constantly gathering information from the field (actual ‘Sensor Data’, current ‘Set Points’ and other ‘Monitoring Data’) and comparing it with the forecast (‘Load Forecast Data’). The objective is to guarantee an as much as possible balanced system, by controlling both the demand and generation, to prevent destabilization of the grid. a) Consumption lower than generation 4. According to the result of the analysis, almost in real time, if there is a technical constraint (difference between actual ‘Sensor Data’ and ‘Load Forecast Data’), the DSO will send a new set point (‘Set Points’) to a set...
