A Rule-based Power Management Controller using Stateflow for Grid-Connected PV-Battery Energy System supplying Household load

摘要

This paper discusses the implementation of an energy management controller (EMC) for grid-connected PV system using the Stateflow approach. This approach provides a rapid design of the controller and efficient code generation for target hardware implementation. A typical micro-grid is considered in this study includes a PV generator, an energy storage system composed of lit-ion battery and the EMC to balance the power flow between the different components of the system. Initially, the different components of the system are simulated under Matlab/Simulink environment. Thereafter, the different operation modes of this controller and its development using the State-flow tool are detailed. Simulation is carried out using a 20 second weather profile to prove the effectiveness of the proposed EMC. It also demonstrated the simplicity of the controller development using the Stateflow tool.