Abstract

This chapter demonstrates how a controller can be designed to attain control system goals once the plant has been chosen and the system specified. The process of designing a control system and getting it to work is probably the most rewarding part of embedded control system work. The chapter describes controllers, filters, and compensators—the elements of a control system. Three compensation topologies are described: cascade compensation, feedforward compensation, and feedback compensation. The chapter focuses on various types of compensators that are popular in industry and their implementation and use in increasing system performance. Each control problem is unique, and sometimes unique compensators are demanded to get a system to behave correctly.

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