Abstract
An example of a two-area interconnected system is simulated on a digital computer. A linear optimal stochastic control strategy is used. Initially the local control strategy is adopted. The feedback of the states, namely governor valve position, the acceleration of the synchronous machines, the frequency and the integral of the area control error is used. The load is modelled as a uniformly distributed random variable with constant mean by simulating a first-order system excited by a white uniform random variable. The uniform random variable is chosen since it represents the worst-case probability distribution function. The curves for the frequency deviations, the power tranfer, and the control input are obtained. The feedback gains are tuned by interactive computation. Finally cross feedback of the states is introduced. The feedback of the acceleration of the synchronous machine of one area was feedback to the other area and vice versa. The two-area co-ordinating control is proved to be superior.
Original language | English |
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State | Published - 1977 |
ASJC Scopus subject areas
- General Engineering