CN206193068U - Novel portable zero -pressure raises device - Google Patents

Abstract

The utility model relates to a transformer fortune dimension equipment and technical field especially relate to portable zero -pressure and raise the device, portable zero -pressure rise device, including the equipment box body, set up display module and output port on the body, output port connects signal generating unit, the display module with signal generating unit is connected with the controller respectively, the controller sets up inside the body, the controller includes the MCU module and distinguishes connected detection module, filter module, body upper portion sets up foldable handle, the body bottom sets up moving mechanism, moving mechanism is flexible adjustable, and its lower part sets up the gyro wheel, the universal wheel of gyro wheel for having braking element. The utility model discloses an adjustable rated voltage can satisfy the demand of pressurization experiment, and rated current is very little, can not produce very big short -circuit current impact systems's stability, convenient to carry, flexible operation, swift.

Description

Novel portable zero-pressure lifting device

Technical field

The utility model is related to power transformation O＆M equipment and technical field, more particularly to portable zero-pressure lifting device.

Background technology

It is general using the side for adding rated voltage when the completion of newly-built or reorganization and expansion power transmission and transforming equipment puts into operation in power system Method is tested.Scheduling, the operation sequence for adjusting system operation mode are numerous and diverse, waste time and energy.When new equipment is faulty, can also produce The very big short circuit current of life, the stability influence to system is larger.

The patent applied as 200810005156.3 provides a kind of booster circuit (12) generation and will be provided as boosting object Low-voltage output boosted boosting output, while will as the output of itself boosting output a part as work Energy back gives oneself.On the other hand, the startup energy that auxiliary boost circuit (13) will be generated according to low-voltage output is used as liter Volt circuit (12) starts the startup energy for needing and booster circuit (12) is exported.

The patent applied as 201510107874.1 is related to voltage conversion device.The utility model is intended to not stop converter Boost operations in the case of, carry out area for abnormal between battery voltage sensor and the input voltage sensor of converter Point.Voltage conversion device is equipped with battery, converter, battery voltage sensor, input voltage VL for detecting converter Voltage sensor, the current sensor for detecting reactor current and control unit.Control unit is not stopping converter Boost operations in the case of, based on the VL presumed values, the input voltage VL of converter and the electricity that are calculated according to reactor current Cell voltage VB, judgement is battery voltage sensor or input voltage sensor exception.

The patent applied as 201610671948.9 discloses a kind of device of voltage of transformation.The change that the utility model is provided The device for changing voltage is formed by reduction voltage circuit and booster circuit cascade, and the device of the voltage of transformation provided using the utility model was both Can be depressured, it is also possible to boosted, buck can also be carried out, input voltage is identical with the polarity of output voltage, keeps away Switch tube voltage stress is exempted from too high, while reducing number of electronic components.

Utility model content

The purpose of this utility model is a kind of portable zero-pressure lifting device of design, and its adjustable rated voltage disclosure satisfy that Pressurize the demand of experiment, rated current very little will not produce very big short circuit current to influence the stability of system, easy to carry, Operation is flexibly, fast.

To realize that the technical scheme that the purpose of this utility model is used is：Portable zero-pressure lifting device, including equipment Case body, sets display module and output port on the body, the output port connects signal generating unit, the display Module and the signal generating unit are connected with controller respectively；The controller is arranged on the body interior, the control Device includes MCU module and respectively connected detection module, filtration module；The body upper part sets folding-type handle, The body bottom portion sets travel mechanism；The travel mechanism is flexible adjustable, and its underpart sets roller, and the roller is Universal wheel with braking element.

Further, the signal generating unit includes voltage regulation unit and adjustable with what the voltage regulation unit was connected respectively Formula current signal generator, adjustable voltage signal generator and pulse voltage source.

Further, the voltage regulation unit includes bridge-type shaping circuit and two-stage amplifying circuit.

Further, the MCU module includes singlechip chip and respectively connected modulus conversion chip, data Deposit unit.

Further, the detection module includes voltage transformer and current transformer, and the current transformer is zero sequence Current transformer, the core magnetism performance material of the current transformer uses permalloy.

Further, the filtration module includes arm processor and active low-pass filter.

Further, the display module includes digital-scroll technique unit, and the digital-scroll technique unit connects serial logical respectively Letter interface, human-machine interface unit and memory, the digital-scroll technique unit include data setting panel and LED display module, institute Stating data setting panel includes several data input buttons and order button.

Further, power module is set on the body, the power module respectively with the controller, the display Module, signal generating unit connection.

Further, the power module includes photovoltaic array plate, and the photovoltaic array plate connects battery, the photovoltaic Array version is arranged at the body surface.

The beneficial effects of the utility model are：

1st, the utility model device is with portable design, combines detection and two big functions of output, wherein, zero-pressure rise according to What is leaned on is output function, and the adjustable treatment of voltage stabilizing is carried out to voltage and current generating apparatus by signal generating unit, is realized undetermined The output of signal, and voltage separated with the output source of electric current, when rated voltage demand is met, will not be produced larger Rated current.

The abnormal conditions such as the 2nd, detection module that the present apparatus is connected using controller, real-time monitoring short circuit, open circuit, using control Chip carries out Treatment Analysis in time, carries out voltage stabilizing treatment, it is ensured that the stability of system.

3rd, the present apparatus has been also compatible with display function, is capable of the voltage and current signal and the present apparatus of real-time detection test body Output signal, and intuitively shown by digital-scroll technique unit, the data setting panel on digital-scroll technique unit can be connected Signal generating unit, and instruction transmission is carried out to generating unit, thus when operation it is more directly perceived.

4th, the present apparatus is by setting handle and travel mechanism, it is possible to achieve quick locomotive function, and whole device is light to be used, Rationally distributed, operation is flexible, should be widely promoted and uses.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Specific embodiment

Embodiment one

As shown in figure 1, novel portable zero-pressure lifting device, including equipment box body, the He of display module 1 is set on body Output port 2, the connection signal generating unit 3 of output port 2, display module 1 and signal generating unit 3 connect with controller 4 respectively Connect；Controller 4 is arranged on body interior, and controller 4 includes MCU module 5 and respectively connected detection module 6, filtering Module 7.Signal generating unit 3 includes voltage regulation unit 8 and the adjustable current signal generator being connected with voltage regulation unit 8 respectively 9th, adjustable voltage signal generator 10 and pulse voltage source 11.Voltage regulation unit 8 includes that bridge-type shaping circuit and two-stage amplify electricity Road.MCU module 5 includes singlechip chip 12 and respectively connected modulus conversion chip 13, data registration unit 14.Inspection Surveying module 6 includes voltage transformer 15 and current transformer 16, and current transformer is zero sequence current mutual inductor, current transformer Core magnetism performance material uses permalloy.Filtration module 7 includes arm processor 17 and active low-pass filter 18.Display module 1 Including digital-scroll technique unit 19, digital-scroll technique unit 19 connects serial communication interface 20, human-machine interface unit 21 and storage respectively Device 22, digital-scroll technique unit includes data setting panel and LED display module, and data setting panel includes several data inputs Button and order button.Power module is set on body, power module respectively with controller, display module, signal generating unit Connection.Power module includes photovoltaic array plate, and photovoltaic array plate connection battery, photovoltaic array version is arranged at body surface.This Body top sets folding-type handle, and body bottom portion sets travel mechanism.

Control core of the present utility model is the singlechip chip and arm processor that controller includes, they are mainly used To carry out detection process to voltage and current signal, it is easy to display module to be shown, while defeated to the signal of signal generating unit Offer is provided and instructs foundation.Controller includes MCU module and respectively connected detection module, filtration module；MCU module bag Include singlechip chip and respectively connected modulus conversion chip, data registration unit.

In concrete operations, device gathers the voltage and current signal of testing equipment, obtains analog signal device after filtering Treatment is input to A/D converter, by analog-to-digital conversion, analog signal is converted into data signal, and single-chip microcomputer reads the knot of conversion Really, and based on electrical performance index, the corresponding computing such as voltage, electric current, power is completed；Serial communication is passed through by ARM again Sent to single-chip microcomputer and ordered, the data and operation result of single-chip microcomputer loopback measurement；Meanwhile, can also be realized by single-chip microcomputer equivalent In over-current detection function, the detection of over-current signal is completed by zero sequence current mutual inductor, the protected circuit that it will can be detected Overload current, and be converted into the ac voltage signal of millivolt level, then by signal rectification, amplify and filtering obtains a direct current Voltage, coordinates corresponding control circuit to perform loop to drive, to realize that timely tripping protection circuit reaches the mesh of overcurrent protection 's；Embedded real-time operating system is transplanted on arm processor, multi-task scheduling is realized, host computer is uploaded to by Ethernet, and And by touch-screen human-computer interaction interface being locally displayed, such bi-processor architecture can by 32 arm processors and Singlechip chip constitutes Slave Parallel processing system, and the management and communication to various peripheral hardwares, single-chip microcomputer are completed by arm processor Data acquisition computing, two kinds of advantages of chip can be not fully exerted, high working efficiency.For the electricity of sensing detection Current transformer uses high performance permalloy as the magnetic material of iron core, and feature is that have magnetic conduction higher under low-intensity magnetic field Rate, this characteristic exceedes common ferrosilicon iron core even FERRITE CORE, to ensure current transformer output in certain scope With good linear.The factor of system reliability is influenceed to be mainly circuit power frequency odd-multiple harmonic current, therefore filtration module is adopted With one group of active low-pass filter, the wave filter mainly filters off odd harmonic AC compounent, then carries out ac-dc conversion treatment, To ensure the correct operation of device.

MCU module as controller core component, including single-chip microcomputer, modulus conversion chip and data registration unit, mould Number conversion chip is that the current signal after sampling by signal transacting is digitally converted, and is needed with the treatment for adapting to single-chip microcomputer Will；Data registration unit is primarily referred to as FLASHROM, the subprogram code for storage enclosure in single-chip microcomputer, in running In can not change.Display module includes digital-scroll technique unit, serial communication interface, human-machine interface unit and memory, and number is aobvious Show unit for showing real-time voltage current data, be mainly made up of digital drive circuit and LED digital displays, serial communication interface is Serial communication port is expanded using the MAX422 of MAXIM companies, data-transformation facility is realized；Man-machine interface circuit mainly completes defeated Go out the setting of test voltage or test current, be the control panel for relying on single-chip microcomputer and connecting extension, it is possible to achieve to MCU module The data pacing of module data register, memory uses band EEPROM EEPROM, for preserving use User data, can change in running, it is possible to achieve the effect for voluntarily recording, it is possible to externally carry out data biography by port It is defeated.Photovoltaic array plate is set on power module, and photovoltaic array plate connection battery can be by solar energy supply source, so as to increase The continuation of system and environmental protection.

In order to realize the rapidity of data processing, technical grade singlechip chip is selected as the core processing of detection module Device, the crystal oscillator of chip up to 40MHz, using 3.3V low supply voltages, the flash with 32K words, the RAM of 2.5K, 64K word journey Sequence area, data field；With 40 independently programmable general purpose I/O；Serial communication modular（SCI）, 2 task manager EVA and EVB；With 5 external interrupts, respectively power drives protection interruption, reset interrupt, non-maskable interrupts etc..Because its is built-in 10 A/D modular converters cannot meet power quality analysis the need for, it is necessary to external modulus conversion chip, expand 16 in outside 6 Channel Synchronous ADS8364 chips of position precision are simulated digital conversion, lift sampling precision.The data of singlechip chip Register, can be connected by man-machine interface with display, data setting panel, and what reception data setting panel was input into adjusts Value Data, and be put into MCU module, facilitate the data processing subprogram of MCU module called when algorithm is sampled.Wherein, MCU Modular program includes main program, interrupt service subroutine, Interruption service subprogram, data processing subprogram, can adopt It is designed with C language, and is packaged in the data storage of MCU module and conveniently directly invokes.Wherein, system main program is main The initial work of completing port, timer, constant, variable and other amounts；Interrupt service subroutine is main according to data register The overflow position state of device, judges whether data overflow, and interruption entrance subprogram is transferred to if overflowing；Interruption service subprogram Main completion timing interrupts sampling task, and 1 ms carries out 1 treatment, and every time continuous 6 sampling, sampled result is stored in specified memory Unit；Data processing subprogram mainly completes to seek statistical average, carries out data comparing, so that it is determined that accurate measurements；Data Data input button in setting panel, including ' 0 ' to ' 9 ' ten Arabic numerals enter key, order button include confirmation, Terminal profile, return, machine open/close, automatic detection etc..

Arm processor can use S3C1440 chips, and this is a processor based on ARM920T cores, using 16/32 Position risc processor, with external memory controller, lcd controller, 4 channel DMA controllers, triple channel UART, 2 passages SPI, 2 tunnel full speed USB main equipment chips can transplant LINUX system and set up WEB server.Software development can be in monolithic Realized using compilation and C language hybrid programming on machine IDE CCS；ARM performs the management and control of whole system, to Single-chip microcomputer sends control command, it is desirable to pass various data and information back, and man-machine interaction part is used to realize intelligentized menu mode Man-machine interface, facilitates administrative staff to inquire about Monitoring Data, with embedded Linux as Software Development Platform, using C and C Plus Plus The application programs such as WEB server and QT are completed to develop.

Present apparatus zero-pressure rise realization be to rely on signal generating unit, including voltage regulation unit and respectively with the voltage stabilizing Adjustable current signal generator, adjustable voltage signal generator and pulse voltage source that unit is connected, voltage regulation unit include Bridge-type shaping circuit and two-stage amplifying circuit, wherein, it is resistance to by taking the pressure test performed by adjustable voltage signal generator as an example Pressure experiment should meet requirement in GB/T 17215.211-2006, and test voltage answers approximate sine wave, frequency in 45Hz and Between 65Hz, apply 1min.Generator capacity at least should be 500VA；Flashover, spark discharge should not occur in experiment and puncture existing As.Flashover, spark discharge and punch-through should not occur in experiment.Voltage regulation unit can provide the stabilization of signal and amplify work( Can, the adjustment of output test voltage is carried out in real time, increase adjustable extent and tuned sensitivities, it is optimal test effect.

Embodiment two

Novel portable zero-pressure lifting device, including equipment box body, set display module and output port on body, defeated Exit port connects signal generating unit, and display module and signal generating unit are connected with controller respectively；Controller is arranged on this Internal portion, controller includes MCU module and respectively connected detection module, filtration module.Signal generating unit includes Voltage regulation unit and the adjustable current signal generator, adjustable voltage signal generator and the arteries and veins that are connected with voltage regulation unit respectively Rush voltage source.Voltage regulation unit includes bridge-type shaping circuit and two-stage amplifying circuit.MCU module includes singlechip chip and difference Connected modulus conversion chip, data registration unit.Detection module includes voltage transformer and current transformer, and electric current is mutual Sensor is zero sequence current mutual inductor, and the core magnetism performance material of current transformer uses permalloy.Filtration module includes ARM treatment Device and active low-pass filter display module include digital-scroll technique unit, digital-scroll technique unit connect respectively serial communication interface, Human-machine interface unit and memory, digital-scroll technique unit include data setting panel and LED display module, data setting panel bag Include several data input buttons and order button.Power module is set on body, power module respectively with controller, display mould Block, signal generating unit connection.Power module includes photovoltaic array plate, and photovoltaic array plate connection battery, photovoltaic array version sets It is placed in body surface.Body upper part sets folding-type handle, and body bottom portion sets travel mechanism.With the difference of embodiment one It is：The travel mechanism of the present apparatus is flexible adjustable, and its underpart sets roller, and roller is with the universal of braking element Wheel.Travel mechanism is flexible adjustable, suitable height can be configured according to condition of work in use, under it Portion sets roller, and roller is the universal wheel with braking element, and casing can be conveniently shifted such that it is able to pass through roller-coaster Position, and noiseless, other people are not interfered with when mobile, and braking element can select adjustable block rubber, notable by its Rubbing action fix wheel.

Embodiment three

Novel portable zero-pressure lifting device, including equipment box body, set display module and output port on body, defeated Exit port connects signal generating unit, and display module and signal generating unit are connected with controller respectively；Controller is arranged on this Internal portion, controller includes MCU module and respectively connected detection module, filtration module.Signal generating unit includes Voltage regulation unit and the adjustable current signal generator, adjustable voltage signal generator and the arteries and veins that are connected with voltage regulation unit respectively Rush voltage source.Voltage regulation unit includes bridge-type shaping circuit and two-stage amplifying circuit.MCU module includes singlechip chip and difference Connected modulus conversion chip, data registration unit.Detection module includes voltage transformer and current transformer, and electric current is mutual Sensor is zero sequence current mutual inductor, and the core magnetism performance material of current transformer uses permalloy.Filtration module includes ARM treatment Device and active low-pass filter display module include digital-scroll technique unit, digital-scroll technique unit connect respectively serial communication interface, Human-machine interface unit and memory, digital-scroll technique unit include data setting panel and LED display module, data setting panel bag Include several data input buttons and order button.Power module is set on body, power module respectively with controller, display mould Block, signal generating unit connection.Power module includes photovoltaic array plate, and photovoltaic array plate connection battery, photovoltaic array version sets It is placed in body surface.Difference with embodiment one or two is：The present apparatus can also set long range radio transmissions unit, can It is connected with the database of power control center with by long distance wireless GPRS communication modules, reading database code test parameter, And test parameters is compared with canonical parameter, and according to the size of relative error, detection check form is drawn, and by even It is informed of a case table generation unit, generates final experimental report.Form conclusion can be divided into contrast scheme and analytical plan two parts, contrast The related data that scheme draws according to testing standard, carries out standard analysis comparison, see whether Pass Test requirement；Analytical plan is then Analysis result is provided, corresponding error compensation scheme is given, for follow-up test operation provides feasibility reference.

Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, the one of this area As it will be recognized that many optional embodiments can also be realized using scheme of the present utility model.It is all in this practicality Any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model Within the scope of shield.

Claims (9)

1. novel portable zero-pressure lifting device, it is characterised in that：Including equipment box body, display module is set on the body And output port, the output port connects signal generating unit, the display module and the signal generating unit respectively with Controller is connected；The controller is arranged on the body interior, and the controller includes MCU module and is connected thereto respectively Detection module, filtration module；The body upper part sets folding-type handle, and the body bottom portion sets travel mechanism；It is described Travel mechanism is flexible adjustable, and its underpart sets roller, and the roller is the universal wheel with braking element.

2. novel portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：The signal generating unit includes Voltage regulation unit and the adjustable current signal generator, the adjustable voltage signal generator that are connected with the voltage regulation unit respectively And pulse voltage source.

3. novel portable zero-pressure lifting device as claimed in claim 2, it is characterised in that：The voltage regulation unit includes bridge-type Shaping circuit and two-stage amplifying circuit.

4. novel portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：The MCU module includes monolithic Movement piece and respectively connected modulus conversion chip, data registration unit.

5. novel portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：The detection module includes voltage Transformer and current transformer, the current transformer are zero sequence current mutual inductor, the core magnetism performance material of the current transformer Material uses permalloy.

6. novel portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：The filtration module includes ARM Processor and active low-pass filter.

7. novel portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：The display module includes number Display unit, the digital-scroll technique unit connects serial communication interface, human-machine interface unit and memory respectively, described digital aobvious Show unit include data setting panel and LED display module, the data setting panel include several data input buttons and Order button.

8. novel portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：Power supply mould is set on the body Block, the power module is connected with the controller, the display module, the signal generating unit respectively.

9. novel portable zero-pressure lifting device as claimed in claim 8, it is characterised in that：The power module includes photovoltaic Array board, the photovoltaic array plate connects battery, and the photovoltaic array version is arranged at the body surface.