The Green Elevator Electrical System Design And Implementation

The elevator is an integral part of modern life elevator vertical transport,appeared in high-rise residential, shopping malls and airports, and many other places. The elevator is an important part of modern architecture. With the continuous development of semiconductor and motor manufacturing technology, elevator technology also experienced many leaps and bounds. Based on the current progress of the elevator at the forefront of technology and special equipment safety analysis, design a new type of green elevator traction machine drive and control system.In this paper, the basic principle of the elevator design departure, the elevator control system is divided into control systems, drive systems, traction systems and electrical safety protection system of four modules. Depending on the needs of each module, analyze their different roles in the whole system, and that a full design and technical parameters based on the design of the theoretical analysis of the key components to complete the selection of such control chips and sensors and other components. Among them, the control system uses MCF54415 control chip, handle a variety of interactive instruction, fault detection and control specific functions, and coordinate the various subsystems. DSP TMS320F28335 drive system as the core control chip, by analyzing the various sensor signals to control the traction machine to work in accordance with the set mode. Traction system uses a permanent magnet synchronous motor drive strip. Permanent magnet synchronous motor with a small size, excellent performance and high efficiency control and so have the advantage. Composite steel has a higher traction force and flexibility than traditional steel wire rope, and let permanent magnet gearless machine greatly reduced volume. Electrical safety protection system and real-time monitoring of each module fault feedback information, failure to respond timely to prevent accidents.Finally, a comprehensive analysis of the needs of each system, the control circuit and system design software architecture. Systematically expounded the elevator door protection, power supply phase sequence protection, elevator overspeed protection and broken rope and lift overcurrent and overload protection design.Test results show that the elevator control system, drive system, traction systems and electrical safety protection system can function properly, to achieve the desired requirements.