Water turbine governor PID parameter optimization method based on NSGA-III and TOPSIS

• Main Authors: WU CHUNWANG, XIN ZHIBO, FU HAILONG, WU ZHENGYI, ZHANG WEI, HE ZHEN, ZHAI PENG, LI JUNHENG, XI FAGANG, RONG HONG, HE LINBO, HE XINLIN
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2024
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

The invention discloses a water turbine governor PID parameter optimization method based on NSGA-III and TOPSIS. The water turbine governor PID parameter optimization method comprises the steps that S1, a hydroelectric refined water turbine regulation system model is obtained; s2, selecting rotating speed overshoot and rotating speed stabilization time in the hydroelectric refined water turbine regulation system model during load increasing and load reducing as objective functions, and performing optimization by using an NSGA-III optimization algorithm to obtain a Pareto solution set; and S3, performing further decision making on the Pareto solution set meeting the optimal rotating speed characteristic according to the hydraulic fluctuation index and the power fluctuation index by using a TOPSIS decision making method, and screening out PID parameters with the same good hydraulic fluctuation and power fluctuation. By obtaining the PID parameters enabling the hydraulic fluctuation, the power fluctuation and th