This paper analyzes the challenges in developing elevator group control systems and employs Siemens S7-1200 PLC and TIA Portal for modular programming.For the control characteristics of three ten-story elevators,judgment programs for upward peak,downward peak,lunch peak,inter-floor commuting,and idle modes are established.Comprehensive control is achieved through the shortest distance,shortest time,and comprehensive evaluation algorithms.Utilizing WinCC,a human-machine interface is designed to implement system control and monitoring.The algorithm is validated using Siemens S7-1200 PLC and the EET simulation platform.Results show that in peak modes,the average elevator travel time is reduced by approximately 14.38%,and the average waiting time is reduced by approximately 29.85%,demonstrating that the group control algorithm is more efficient and energy-saving compared to traditional methods.
关键词
PLC/综合评价函数/电梯群控
Key words
PLC/comprehensive evaluation function/group control elevator