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With ever increasing energy generation diversity and energy storage becoming affordable, distribution networks are becoming more complex than ever before. This complexity can be utilized to benefit the distribution networks as well as end consumers in the form of controlled Microgrids. Microgrids are not simply distributed generation and energy storage systems; solar systems and battery banks, rather a complete design of hardware and software for specific uses and users. All the different elements need to be designed to work together to provide stable, efficient and sustainable power delivery to the end user. An experimental Hybrid-Microgrid testing facility is presented in this paper that implements highefficiency distribution architectures combining both AC and DC networks. This testing facility provides a research testbed for investigating different aspects of Microgrid systems, employing a total of 15.5 kW of reconfigurable Solar PV and 80 kWh of lithium energy storage on a 145 kVA commercial building load located at Griffith University. Implementation results along with control system simulation results are presented in this paper for distributed renewable generation, Static Synchronous Compensators, advanced control methodologies and forecasting methods for energy management purposes.

Abstract. This paper aims to investigate a method of peak load shaving through the utilization of solar PV and battery energy storage whilst creating a cost effective Energy Management System (EMS). This is achieved by utilizing a rule-sets to manage and optimize a scheduling system with a forecasting algorithm. As Time of Use (ToU) tariffs change throughout the day, a cost benefit can be achieved when a smart energy storage system is appropriately employed. The EMS operation is tested on an experimental microgrid with commercial load considering payback period calculation.

This paper analyses the effect of a smart voltage source inverter (VSI) embedded in a photovoltaic (PV) unit on the voltage stability/reactive power balancing of a microgrid. The conventional unity power factor PV-VSI is modified to operate for both active and reactive power management operations. The PV integrated AC/DC microgrid system is designed with a central smart VSI in PSCAD/EMTDC software environment and implemented in the Energex 11 kV distribution network, Australia. The results show superior dynamic performance and robust transient recovery from the smart VSI integrated microgrid for real life radiation variations, random loads variations, faults and intentional external disturbances. Index Terms--PV microgrid, AC/DC microgrid, smart VSI, VAR compensation, PV-STATCOM.I.

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