Control method and device for non-stop switching of local ventilator

• Main Authors: SHANG XINMANG, GUO WENFANG, LEI GUISHENG, GUO CHENPING, HUANG WEIMING, LI BO
• Format: Patent
• Language: Chinese; English
• Published: 23.11.2021
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

The invention discloses a control method and device for non-stop switching of a local ventilator. The control method comprises the steps that a switching instruction of a main fan and a standby fan is received, the operation states of a main fan frequency converter and a standby fan frequency converter is judged, and the normal operation states of the main fan frequency converter and the standby fan frequency converter are responded; a first working state of a local ventilation system is acquired, a target parameter of a fuzzy self-adaptive PID control method is generated, a real-time working state of the local ventilation system is acquired, and each regulating variable is calculated and sent out by adopting the fuzzy self-adaptive PID control method until the switching between the main fan and the standby fan is completed. According to the control method and device for non-stop switching of the local ventilator, the working state of the local ventilation system serves as the target parameter, the main fan a