Improvement of Corrective Agents Dispensing Control Systems for Thermal Power Plants

The paper is devoted to corrective agents dispensing control systems for thermal power plants, namely, hydrazine dispensing control system and phosphates dispensing control system. The systems mentioned are single-loop systems with PI-algorithms and they do not work efficiently enough now. Traditional variants of these system and their improvements earlier offered are described. Some new improvements, are offered and analyzed. They are prediction module using and control algorithm tuning parameters optimization. The prediction module uses the linear prediction algorithm. The transient processes and Nyquist curves for the control systems are given and analyzed. The quality indexes for the control systems are calculated. All the calculations are based on experimental data given in the papers already published.