Kanstantsin Paulau, Philip Vee, Kevin Vo
Advisor: Dr. Prawat Nagvajara
The United States has one of, if not, the largest military budgets in the world. Criticisms of the high spending has led to the Department of Defense (DoD) cutting costs. Some of the strategies in reducing costs are downsizing personnel and modernizing older equipment with newer technology. This modernization agenda includes unmanned aerial systems. Drones would fall under this category and have seen increasing usage with both the military and civilian population in the past decade. What is a way in which the DoD can modernize equipment and use fewer personnel to be more efficient? Our team has identified the mortar system as equipment that the DoD has been trying to improve on for a significant period. In particular, the accuracy of mortars has been seen as unsatisfactory as GPS-guided rounds were one of the proposed solutions by the military. Our team has been making a system that integrates a projectile launcher and a commercial drone to make the firing process more accurate. The use of a drone is to reduce costs over the long term as guided rounds are expensive and have limited use. Microcontrollers have been attached to the projectile launcher so the drone can go to where the predicted landing will be. The drone provides visual confirmation and maps out a line of its flight path. After the first shot, we want to calculate the error and figure out the best adjustments to make for the subsequent projectiles.
Omar Gomaa, Cody Tran, Modibo Fomba, Henry Nguyen, Fatimata Dia
Advisor: Dr. Fei Lu
In the past 40 years, solar energy has grown and expanded from just powering satellites in space to a technology that powers homes and businesses. Inverters are an essential part of the installation with their main function being converting the DC electricity from the solar panel to AC electricity that can both feed the load, and/or be integrated again in the grid and supplied to the utility. Before the 1960s, solar systems were only 6% efficient and cost $300/Watt. With the advancement in both PV technology and more economical solar inverters, the average solar system performs at an efficiency that ranges from 14 to 18 percent efficiency and could cost as low as $3/Watt. As more PV solar systems get integrated into the electric grid, energy efficiency and installation costs became a concern to residents and businesses. The objective of Smart, Efficient, and Light Solar Microgrid Inverter (SELSMI) is to provide grid support functions, such as frequency support, voltage regulation, and ride-through capabilities. The design aims to reduce heat sink losses, weight, and system’s size, hence reducing the overall installation cost for the customer. This is done by optimizing the capacitor and inductor values for the LCL filter, the most convenient Full-bridge for the DC-DC converter, an STM32 based controller, and isolators.