CN201494980U

CN201494980U - Super capacitor energy storage based elevator safe protection device

Info

Publication number: CN201494980U
Application number: CN200920312032XU
Authority: CN
Inventors: 文方; 陈湘萍; 杨盛毅; 陈进军; 张梅; 姜孝华
Original assignee: Guizhou University
Current assignee: Guizhou University
Priority date: 2009-10-09
Filing date: 2009-10-09
Publication date: 2010-06-02
Anticipated expiration: 2019-10-09

Abstract

The utility model discloses a super capacitor energy storage based elevator safe protection device, comprising an elevator motor (5), a frequency converter (4) connected with the motor (5), a power supply connected with the frequency converter (4), a super capacitor module set (1) which is connected with an inverter circuit module (2) and a power supply switch module (3) in order to supply power to the frequency converter (4). The frequency converter (4) is connected with an energy storage control module (6) and the super capacitor module set (1). A microprocessor module (7) is respectively connected with the modules. The super capacitor module set of the utility model is an energy storage part. When the elevator runs normally, the super capacitor module set can store energy. When the elevator is out of order, the energy stored via the super capacitor module set can be used as backup support. The microprocessor module controls the charging and discharging process of the super capacitor module set. The utility model has high reliability and low system cost and can be applied to various elevator systems.

Description

Elevator loss protecting device based on the ultracapacitor accumulation of energy

Technical field

The utility model relates to a kind of elevator loss protecting device based on the ultracapacitor accumulation of energy, belongs to elevator loss protecting technical field.

Background technology

At present, elevator in operational process meets with the electric power system fault and suddenly during dead electricity, and its Machine guarding action is fixed on position when having a power failure with elevator, prevents lift slide.But can not carry out the contraposition of car and open railway carriage or compartment door because power supply loses, and elevator can not be pressed preset program work again this moment, takes advantage of personnel's safety to be subjected to serious threat in making.Still can normal operation when guaranteeing the elevator dead electricity, or under the emergency state, carry out the car contraposition, open the railway carriage or compartment door, take advantage of personnel in the evacuation, generally acknowledged way is to take storage battery to make back-up source, but this back-up source maintenance workload is big, fragile, the cost height switches complicated, cause most of elevators or do not have the emergency backup power supply, though or have and standbyly can not start work immediately.

Summary of the invention

The purpose of this utility model is: a kind of reliable backup power that has is provided, guarantees the elevator loss protecting device of the ultracapacitor accumulation of energy of elevator and passenger safety, to overcome the deficiencies in the prior art.

The utility model is to constitute like this: structure comprises the electrical motor of elevator, electrical motor connects frequency converter, frequency converter connects power supply, also comprise the ultracapacitor module, the ultracapacitor module connects the inverter circuit module, the inverter circuit module is by the electric motor frequency converter power supply of power supply handover module to elevator, and frequency converter connects the accumulation of energy control module, and the accumulation of energy control module connects the ultracapacitor module; Microprocessor module is connected with ultracapacitor module, inverter circuit module, power supply handover module, accumulation of energy control module respectively.

The high discharge power advantage of the existing electrostatic condenser of ultracapacitor that the utility model adopts has than the large charge storage power as storage battery again, and its charge and discharge circulation life is long, and power density is big, and high-temperature behavior is good, and capacity configuration is flexible.When elevator normally moves, can utilize the energy in the ultracapacitor absorption elevator decline process, and finish the charging deposit; When the supply regular power system unexpected et out of order of elevator, utilize the electric energy that stores in the ultracapacitor to support in support, provide back-up source to elevator rapidly.By microprocessor module the ultracapacitor charge and discharge process is controlled, the reliability height, system cost is also lower, can be suitable for various elevator devices.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model;

The specific embodiment

Embodiment of the present utility model: as shown in Figure 1, elevator drive motor 5 is an AC asynchronous motor, and the driving of electrical motor 5 is by frequency converter 4 controls, and frequency converter 4 connects power supply.Obtain ultracapacitor module 1 by a plurality of ultracapacitor series connection, the capacity of its single ultracapacitor, voltage class, and single ultracapacitor series connection quantity is calculated and is determined according to the ultracapacitor module required back-up source energy that releases energy when being not less than the elevator dead electricity.Ultracapacitor module 1 connects inverter circuit module 2, and inverter circuit module 2 is by electric motor frequency converter 4 power supplies of power supply handover module 3 to elevator, and frequency converter 4 connects accumulation of energy control module 6, and accumulation of energy control module 6 connects ultracapacitor module 1; Microprocessor module 7 is connected with ultracapacitor module 1, inverter circuit module 2, power supply handover module 3, accumulation of energy control module 6 respectively.

Accumulation of energy control module 6 adopts the DC chopped-wave principle, descend at elevator, when being in the energy consumption feedback, electrical motor 5 obtains direct current energy from frequency converter 4 dc buss, by the 7 control DC chopped-wave cycles of microprocessor module, to 1 charging of ultracapacitor module, finish the deposit of electric energy with the vdc identical with ultracapacitor module 1 rated voltage.

Inverter circuit module 2 links to each other with ultracapacitor module 1, under the control of microprocessor module 7, the dc back-up power supply of ultracapacitor module 1 output is converted to the interchange back-up source of three-phase 380V.

The switching that power supply handover module 3 is realized between externally fed system and the back-up source, externally fed system contactless switch 8 is connected with external power supply, backup power contactless switch 9 is connected with inverter circuit module 2, under the Monitoring and Controlling of microprocessor module 7, when externally fed system et out of order, by the switching of externally fed system contactless switch 8 and backup power contactless switch 9, excise the externally fed system of elevator rapidly, the back-up source that provides by ultracapacitor module 1 is provided.

Frequency converter 4 is the necessary speed regulation devices of former elevator drive, and in the elevator loss protecting system based on the ultracapacitor accumulation of energy, frequency changer direct current bus provides the charging energy for ultracapacitor module 1.

Microprocessor module 7 monitorings and control are to the electrical power storage and the release of ultracapacitor module 1, when detecting electrical motor 5, microprocessor module 7 is in the energy regenerating condition, when the voltage of ultracapacitor module 1 is lower than the setting voltage of ultracapacitor module 1, control realizes electrical power storage to 1 charging of ultracapacitor module; When microprocessor module 7 detected the externally fed system failure, the back-up source that is provided by ultracapacitor module 1 was provided in excision externally fed loop, sends alerting signal and the order of dead electricity emergency treatment simultaneously.

In elevator control main program, write dead electricity emergency treatment subprogram, the dead electricity emergency treatment order that microprocessor module 7 sends is introduced electric life controller with the form of switching value, when electric life controller receives the order of dead electricity emergency treatment, call dead electricity emergency treatment subprogram, the control elevator moves to nearest floor, opens elevator car door.

Claims

1. elevator loss protecting device based on the ultracapacitor accumulation of energy, structure comprises the electrical motor (5) of elevator, electrical motor (5) connects frequency converter (4), frequency converter (4) connects power supply, it is characterized in that: also comprise ultracapacitor module (1), ultracapacitor module (1) connects inverter circuit module (2), inverter circuit module (2) is by electric motor frequency converter (4) power supply of power supply handover module (3) to elevator, frequency converter (4) connects accumulation of energy control module (6), and accumulation of energy control module (6) connects ultracapacitor module (1); Microprocessor module (7) is connected with ultracapacitor module (1), inverter circuit module (2), power supply handover module (3), accumulation of energy control module (6) respectively.