DESIGN AND DEVELOPMENT OF A ROBUST CONTROL ADJUSTABLE

Electrical drives lie at the heart of most industrial processes and make a major contribution to the comfort and high quality products we all take for granted. Electrical drives involving different types of electrical motors turn the wheels of industry. In an industrialized country, more than 60 % of the generated electrical energy is used in motor drives. The application of electrical drives spread from low fractional horse power applications in instruments to the industrial applications. Wide power, torque and speed ranges, adaptability to almost every operating condition, high efficiency, fast response, control simplicity, ability to operate as a generator in braking mode and various mechanical design types make the electrical drive very competitive among the other drive types. This work is based on the Robust Control Adjustable Electrical DC Drive System using PI (Proportional Integrator) controller. It encompasses the development of the DC drive. It also includes the design and fabrication of the mechanical load wheel structure. Thus the work finally gave a product in the form of a test jig for checking the wear and tear of a small metallic material after being spring pressed and scrubbed on the edged copper face of the aluminum disk wheel. The integrity of the system is based on keeping the wheel speed constant. In nullifying the steady state error the PI control algorithm was eventually used with root locus design method that could enable finding the PI coefficients. It turns out to be a robust and resilient drive that keeps the load wheel spee