Our Work

Microgrid with inverter-based resources

Our team's microgrid experience is related to a project that incorporated inverter-based Distributed Energy Resources (DERs). The project encompassed meticulous planning, comprehensive design, proficient installation, and seamless commissioning of a microgrid that operated autonomously 24/7, islanded from the main grid. All microgrid controlled were internally developed, commissioned and implemented within the microgrid controller. Microgrid had the capability to seamlessly island from the grid and seamlessly transition back to the grid. The microgrid effectively utilized inverter-based resources to sustain its independent power supply, ensuring uninterrupted power supply.

Microgrid Grounding Transformer Sizing

Sizing of grounding transformers entails a meticulous process that demands careful consideration. These transformers are purposefully designed to ensure the reliable and effective grounding of electrical systems, safeguarding both equipment and personnel from potential hazards. In the case of microgrids with inverter-based Distributed Energy Resources (DER), the need for a simulations-based sizing approach becomes apparent. This is because the current methods and standards lack coverage for this specific use case. By incorporating internally developed simulations-based approach, our engineers accountd for the unique characteristics of inverter-based DER, such as their dynamic behavior and interaction with the microgrid in order to provide effective grouding for microgrid with inverter-based DERs. This approach filled the gap in existing methods and standards, ensuring the appropriate selection and integration of grounding transformers within microgrid systems, thereby enhancing their overall performance and reliability. This innovative method has been outlined in a comprehensive publication spanning 120 pages, which not only introduces the new approach but also provides a thorough comparison with existing standards.