Elevator energy-saving system and control method thereof
An energy-saving system and control method technology, which is applied to collectors, electric vehicles, electrical components, etc., can solve the problems that the energy storage device cannot timely and flexibly respond to changes in the environment in which the elevator is used, and the cost increases, so as to achieve energy-saving and high-efficiency elevators. The effect of the elevator's ability to continuously regenerate
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0086] see figure 1 , in the first embodiment of the elevator energy-saving system, the external power supply 1 is connected to the three-phase AC side of the rectifier 2, and the DC side of the rectifier 2 is connected to the DC side input end of the inverter 7 through the first DC bus 6, smooth The DC capacitor 3 and the energy consumption circuit 5 are respectively connected across the two ends of the first DC bus 6, the bus voltage detector 4 is arranged at both ends of the smoothing DC capacitor 3, and the three-phase AC side of the inverter 7 passes through the current detector 8 is connected with the elevator motor 9, the elevator motor 9 is connected with the traction wheel 10 through a specific structure, the car 13 and the counterweight 12 are suspended on both sides of the traction wheel 10 and the guide wheel 11 by ropes. The elevator drive controller 15 generates a pair of inverters 7 according to the landing call, the car command or the deployment command of the ...
Embodiment 2
[0120] see Figure 4 , the second embodiment of the elevator energy-saving system is similar to the first embodiment, so only the differences will be described below.
[0121] The elevator motor state recognizer 31 is connected with the elevator driving controller 15, the charging and discharging controller 18 and the switch controller 21 through signal lines. The charging and discharging controller 18 for controlling the energy flow between the first DC bus 6 and the energy storage device 20 communicates with the energy storage device state detector 17, the bus voltage detector 4, and the elevator motor state recognizer 31 through signal lines It is connected to the charging and discharging circuit 19. The switch controller 21 for controlling the on and off of the power switch 23 is connected with the bus voltage detector 4, the current detector 30, the elevator motor state recognizer 31 and the power switch 23 through signal lines.
[0122] The elevator motor state recogni...
Embodiment 3
[0137] The overall structure of this embodiment is as Figure 6 as shown, with figure 1 The only difference in the overall structure of the first embodiment shown is that a power failure and recovery detector 33 for detecting the power supply state of the external power supply 1 (ie whether it is normal power supply or power supply stopped) is added.
[0138] The charging and discharging controller 18 controls the charging and discharging circuit 19 by the charging and discharging controller control method described in the first embodiment;
[0139] The switch controller 21 has two control modes according to the detection result of the power failure recovery detector 33:
[0140] Normal control mode: when the power failure and recovery detector 33 detects that the external power supply 1 is normally powered, the switch controller 21 detects the bus voltage V at both ends of the first DC bus 6 detected by the bus voltage detector 4 dc and its command value V dcref 1. The DC ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com