METHOD OF ADAPTIVE CORRECTION OF COMBINATORIAL DEPENDENCE OF ROTARY-VANE HYDRAULIC TURBINE

摘要

FIELD: mechanical engineering; rotary-vane hydraulic turbines.;SUBSTANCE: according to proposed method, first discrepancy of parameters, obtained by combinatorial dependence, from optimum turbine control parameters is revealed. Then combinatory is switched off, direction of correction is determined and optimum parameters are searched at which increment of consumption of water at change of position of wheel blades should be equal to increment of water flow rate at change of opening of guide vane assembly. For this purpose test pulse actions are formed simultaneously but in opposite directions, are grouped in pairs and are delivered by steps to wheel blade and guide vane assembly control drives measuring increment of electric power of set of successive step and fixing signs of change of electric power of set. Positive increment of electric power is used as index for choosing correcting pair of pulses. Correction is carried out till moment when increment of set power becomes zero. Resulting parameters are stored in memory unit for subsequent use as optimum ones at conditions of set of corresponding head and power.;EFFECT: provision of maximum efficiency of set.;4 dwg