Wind Turbine Simulation (Phase IV) SDMAY 12-24 Advisor: Dr. Venkataramana Ajjarapu

Group Members Brian Alexander (Computer Engineering) SDMAY 12-24 Group Members Brian Alexander (Computer Engineering) Lon Bromolson (Electrical Engineering) Jarid Strike (Electrical Engineering) Chase Schaben (Electrical Engineering) Anthony Swope (Electrical Engineering)

SDMAY 12-24 Project Description Computer controlled motor is coupled with wind turbine Wind turbine -> batteries -> inverter -> AC load Measurements are taken using DAQ USB-6008, and imported into LabVIEW

Problem Statement Existing system: Model for new system: SDMAY 12-24 Problem Statement Existing system: Load primarily uses batteries. Turbine charges batteries when needed. System does not efficiently use wind energy Model for new system: Wind turbine primarily powers load Batteries are used as backup PC provides user-friendly interface

SDMAY 12-24

SDMAY 12-24 Current System

SDMAY 12-24

SDMAY 12-24

Functional Requirements SDMAY 12-24 Functional Requirements The turbine will generate a 24V DC output. The turbine will generate a 400W peak output. The motor will simulate outdoor wind speed. The anemometer and wind vane will transmit wind profiles from locations on campus The turbine output current will be accurate for the input wind speed The turbine will divert power to the load or a dump when excess power is produced

Non-Functional Requirements SDMAY 12-24 Non-Functional Requirements The project will comply with all state and federal electrical regulations. The project will be documented through technical manual and in-depth schematics. Technology Requirements LabVIEW interface must accurately calculate multiple variables throughout the system and display them for the user to see. Wind profiles must be read and input into LabVIEW in real-time. All sensor equipment must be compatible with DAQ module.

LabVIEW Interface Control wind speed simulation motor SDMAY 12-24 LabVIEW Interface Control wind speed simulation motor Read measurements while running motor Provide rich user interface for real-time operation Obtain plots that can be analyzed using Excel. Power (W) vs Wind(mph), Power (W) vs time(s), etc

LabVIEW Interface Available Outputs: Available Inputs: SDMAY 12-24 LabVIEW Interface Available Outputs: Motor voltage/frequency (controlled by DSP) Available Inputs: Wind speed measured by anemometer Motor RPM measured by Hall sensor Turbine current measured by current transducer and USB-6008 Inverter current measured by current transducer and USB-6008 Battery voltage measured by USB-6008

SDMAY 12-24

SDMAY 12-24

SDMAY 12-24 Motor Control Issues Previous design team used standard 3-phase power supply rather than programmable DSP variable-frequency drive Motor was overheating when 3-phase power supply was used Figure from Wikipedia “File:VFD System.png”

MATLAB PLECS MATLAB PLECS Used to simulate the current circuit. SDMAY 12-24 MATLAB PLECS MATLAB PLECS Used to simulate the current circuit. Show how possible solutions will affect the system

SDMAY 12-24 PLECS Schematic

Load/Battery/Turbine Solutions SDMAY 12-24 Load/Battery/Turbine Solutions PLECS software Different Circuit Ideas Boost Converter Charge Controller Logic Controller

SDMAY 12-24 Test Plan Run system for a long period (few days or few weeks) while simulating actual wind speed conditions Measure power generation of wind turbine over time Measure battery voltage over time

SDMAY 12-24 Accomplished Tasks All signals coming from sensors are available to access in LabVIEW, and a initial user-interface has been developed. Power management circuit ideas have been discussed, existing circuit has been modeled in MATLAB. Measurements have been taken using 3-phase power supply, but motor was overheating.

Planned Tasks Develop control/measurement software in LabVIEW SDMAY 12-24 Planned Tasks Develop control/measurement software in LabVIEW Develop accurate motor control using DSP and variable-frequency drive Develop power management circuitry Perform analysis Compare systems and optimize solution Draft new schematics

SDMAY 12-24 Any Questions??