Intelligent control system of impulse water turbines

• Main Authors: ZHAO HONGHONG, XIAO PENG, CHEN QIMING, ZHANG QIANG, WANG HUAJUN, LYU ZAISHENG
• Format: Patent
• Language: English
• Published: 09.09.2015
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The invention discloses an intelligent control system of impulse water turbines. The intelligent control system comprises a speed controller PLC and a stacked hydraulic servo device. The stacked hydraulic servo device comprises needle control units connected with needles correspondingly and deflector control units connected with deflectors correspondingly. The needle control units and the deflector control units are connected with the speed controller PLC. The output end of the speed controller PLC is connected with an opening side electromagnetic valve and a closing side electromagnetic valve of each needle switching valve through a power amplifier. Each needle switching valve controls an opening cavity and a closing cavity of a needle servomotor through a needle electrohydraulic converter. The invention provides the control system characterized by simple structure and high reliability and suitable for multi-needle and multi-deflector impulse units; with the unit type structural design, the digital water turbine speed adjusting system is characterized in that the hydraulic control systems of the needles and the deflectors are designed as completely identical and independently-controlled digital hydraulic units, so that intelligent hydropower station establishment is realized.