Accession Number:

ADA155477

Title:

Microprocessor Control Design for a Low-Head Crossflow Turbine.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1985-03-01

Pagination or Media Count:

343.0

Abstract:

A microprocessor based controller is designed for use on a low-head crossflow turbine, The design contains a model of the turbine, an algorithm for maximizing output power, software design, and software testing. Modelling of the turbine is performed using tabular data in order to avoid the complexity of deriving an equation model. Linear interpolation of the tabular data is used to obtain a continuous model of the turbine. Based upon turbine hardware, turbine characteristics, and economic feasibility, a search design is selected as most appropriate for the crossflow turbine. Specifically, a gradient search algorithm is chosen to maximum the turbines output power. Software is designed for the gradient search and other modes of the controller. The software design contains flow diagrams, pseudo-code, and a data dictionary, Testing the software with the linear interpolation model, shows the gradient search adequately maximizes the output power of the modelled crossflow turbine. Theses.

Subject Categories:

  • Theoretical Mathematics
  • Computer Programming and Software
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE