Device and control method for elevator energy saving reverse control technology
A technology of inverter control and technical devices, which is applied in multidisciplinary energy, electronics, and information fields, can solve problems such as waste, system reliability, adverse effects on stability, and damage to motor insulation, and achieve simple and effective control
Inactive Publication Date: 2008-02-13
SHANGHAI NORMAL UNIVERSITY
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, fully-controlled devices represented by IGBT (Insulated Gate Bipolar Transistor) have low withstand voltage; excessive pumping voltage may damage switching devices, electrolytic capacitors, and even damage the insulation of the motor, thereby threatening The system works safely. At present, this part of the energy can only be wasted in the form of heat energy through the energy consumption resistor. At the same time, the reliability and stability of the system are adversely affected due to the serious heating of the resistor.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0079] Please refer to accompanying drawing 1, shown in 2, the present invention is made up of parts such as filter, rectifier, frequency converter, motor, power supply and single-chip microcomputer, and this device at least includes:
[0080] An inverter controller 10 module and an IGBT inverter bridge 20 module are combined into an inverter control technology device; the inverter synchronous signal is sent to the input end of the inverter controller 10 module, and the output end of the inverter controller 10 module is connected to the The input ends of the IGBT inverter bridge 20 modules are connected, and the output ends of the IGBT inverter bridge 20 modules are respectively connected to the input ends of the AC line voltage of the three-phase grid; wherein:
[0081] An inverter controller 10 modules are mainly composed of single-chip microcomputers;
[0082] An IGBT inverter bridge 20 module is mainly composed of three bridge arms and six IGBT insulated gate bipolar trans...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to the multidisciplinary technical field of electronics, information and energy source, in particular to a high-tech elevator energy-saving inversion control technical device making use of a modern technical and scientific instrument to save energy of elevators. The device consists of a filter, a rectifier, a transducer, a motor, a power supply and an SCM and so on, and at least comprises an inversion control module and an IGBT inversion bridge module of a bipolar transistor of an isolated gate which are assembled into an inversion control technical device. The IGBT inversion bridge primarily consists of three bridge arms and six IGBT isolated gate bipolar transistors, and is primarily to solve the technical problems how to control inversion of regenerated energy of elevators in inversion feedback power-saving technology. The invention has the advantages that the device directly controls line voltage of the grid, and the time of the 60-degree phase of voltage of wires of the grid is taken as the time to control inversion; inversion line voltage and line voltage of the grid can be connected in the grid, and by adopting the invention, control can be effective and quick as well as simple.
Description
technical field [0001] The invention relates to a multi-disciplinary technical field of electronics, information and energy, especially a high-tech product and method for realizing energy saving of elevators by utilizing modern scientific and technological means. Background technique [0002] At present, almost all AC-DC-AC inverters are used as speed control tools for driving motors in elevator operation control systems. This type of inverter has high power factor, high efficiency, high precision and wide speed range, so it is widely used. [0003] Most general-purpose inverters are voltage-type AC-DC-AC inverters. The principle of this type of frequency converter is that the three-phase alternating current first passes through the diode uncontrolled rectifier bridge to obtain pulsating direct current, then filters and stabilizes the voltage through electrolytic capacitors, and finally supplies power to the motor through active inverter output voltage and adjustable freque...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02P27/06H02M7/48H02M7/5387H02J3/38
Inventor 张自强徐素莉李传江
Owner SHANGHAI NORMAL UNIVERSITY