CN206313449U - A kind of voltage sag compensation device for single-phase equipment - Google Patents
A kind of voltage sag compensation device for single-phase equipment Download PDFInfo
- Publication number
- CN206313449U CN206313449U CN201720002195.2U CN201720002195U CN206313449U CN 206313449 U CN206313449 U CN 206313449U CN 201720002195 U CN201720002195 U CN 201720002195U CN 206313449 U CN206313449 U CN 206313449U
- Authority
- CN
- China
- Prior art keywords
- voltage
- way
- module
- compensation device
- voltage sag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model discloses a kind of voltage sag compensation device for single-phase equipment, including power network detection module, super energy-storage capacitor, inversion IGBT, step-up transformer, all the way systematic microprocessor, RS485 communication modules, all the way ALARM alarm modules, display module, SCR through swtiches, emergency by-pass switch, it is outside set switch, relay indicating light, all the way exchange input, all the way exchange output, all the way direct current input constitute.Detection power network module is spaced 67 μ S using MCU single chip computer AT MGA88PA AU real-time samplings record line voltage, electric current, frequency data, sample record, and the sine wave to line voltage carries out phase locked track；When detecting power network and voltage dip and excessive electric current occur, compensating module temporarily drops in trigger voltage.Compensating module carries out voltage dip compensation using the scheme of super storage capacitor combination inversion IGBT, step-up transformer.The utility model device has depth voltage dip compensation function, is that market today is administered without battery system industry voltage dip, voltage dip protection, voltage sag compensation, power network flash protection innovative, creativeness, the product of leading type.
Description
Technical field
The utility model is related to a kind of emergency circuit protection device, the protection of more particularly to a kind of under-voltage or no-voltage
Device.
Background technology
In the last few years, the extensive use with the sensitive power electronic equipment of modernization and the rapid hair of novel electric power load
Exhibition, dynamic power quality problem is of increasing concern, wherein one of maximum problem of the most prominent, cost is exactly voltage dip.
International Electrical and Institution of Electronics（IEEE）Voltage dip is defined as supply voltage virtual value and rapidly drops to rated value（Un）'s
90% ~ 10%, then go back up near normal value, and International Electrotechnical Commission（IEC）Then it is defined as dropping to rated value
90% ~ 1%, the duration is 10ms ~ 1min.
With becoming stronger day by day for power network, the major accident such as appearance in the past has a power failure, the under-voltage, phase shortage of long-time is fewer and feweri, and
Voltage dip becomes the matter of utmost importance of the influence quality of power supply, according to EPRI（U.S.'s DianKeYuan）AUTHORITATIVE DATA shows more than 92%
Quality of power supply event for voltage dip or temporarily rise, other quality of power supply proportions are less than 8%.LPQI（Leonardo electric energy
Quality work group）Issue report display voltage dip（Including short time voltage interruption）The quality of power supply accident for causing is accounted for be owned
The 60% of the quality of power supply.
Most of electronic equipments are very sensitive to dynamic voltage disturbance, voltage dip can cause equipment downtime and damage, with
And software reset and restart, product rejection brings huge economic loss, different industries and equipment to user, voltage dip can be produced
The different influence of life：
The cooling high capacity motor of voltage dip occurs for the producer of cooling device opposite product electronic equipment processed may
Can trip and be stopped；
Direct current generator：During there is voltage dip in printing and plastics-production, the controller and up- coiler of DC driven
May all power off, cause huge economic loss；
PLC：In the industrial production, some parts of PLC are very sensitive to voltage dip；
Mechanical device：Any fluctuation of voltage, particularly voltage dip are likely to cause automatics or complicated machine
The dangerous operation of tool；
Speed adjustable device：Voltage dip may cause arrangements for speed regulation to trip.
Current voltage dip is mainly installation and suppresses or the temporary falling unit of offset voltage in the control of user terminal and Improving Measurements,
Such product in the market mainly has the devices such as UPS, VSC, solid-state switch, DVR, but such device has electricity at present
Net detection rates are slow, and compensation response speed is slow, compensation depth is low, the compensation time is short, battery life is short, battery needs often to safeguard
Etc. the compensation ability that serious problems constrain voltage sag compensation device, it is impossible to enough meet sensitive electron electric equipment temporary to voltage
The demand of compensation drops.
The content of the invention
The technical problems to be solved in the utility model be to provide it is a kind of have without battery, lightweight, small volume, noiseless,
Non-maintaining feature, can be used for quick detection power network, quick compensation, compensation depth up to 0V voltage sag compensation device.
The utility model is achieved through the following technical solutions：A kind of device suitable for voltage dip compensation, bag
Include power network detection module, super energy-storage capacitor, inversion IGBT, step-up transformer, all the way systematic microprocessor, RS485 communications
Interface, all the way ALARM alarm modules, display module, SCR through swtiches, emergency by-pass switch, outside setting switch, work
Make indicator lamp, all the way exchange input, all the way exchange output, all the way direct current input composition；
The background client terminal is by data wire respectively at RS485 communication interfaces all the way, all the way ALARM alarm modules company
Connect.
Used as optimal technical scheme, the power network detection module is remembered using MCU single chip computer AT MGA88PA-AU real-time samplings
Record line voltage, electric current, frequency data, sample record are spaced 67 μ S, and the sine wave to line voltage carries out phase locked track.
Used as optimal technical scheme, the super energy-storage capacitor, inversion IGBT, step-up transformer composition voltage dip are mended
Module is repaid, ultracapacitor is responsible for storing energy, and inversion IGBT is responsible for generating pure sine wave.
As optimal technical scheme, the SCR through swtiches, electric current sets by the way that SCR is straight-through during electric power system normal work
Standby electricity, while being charged to energy-storage capacitor.When electric power system temporarily drops generation, SCR disconnects cut-out civil power and protection equipment contact
Prevent down power transmission.
As optimal technical scheme, the SCR through swtiches, electric current sets by the way that SCR is straight-through during electric power system normal work
Standby electricity, while being charged to energy-storage capacitor.When electric power system temporarily drops generation, SCR disconnects cut-out civil power and protection equipment contact
Prevent down power transmission.
Used as optimal technical scheme, direct current input all the way is parallel to super energy-storage capacitor, belongs to the external energy storage of selectivity
Module, for increasing compensation capacity and compensation time.
The beneficial effects of the utility model are：
Quick detection power network：Sine wave to line voltage carries out phase locked track, 67 μ s of sample record interval, in time detection
Whether line voltage there is temporarily drop；
Quick compensation：The fast output voltage in 0.8 ~ 2ms when voltage dip is detected；
It is not required to battery and non-maintaining：Energy-storage travelling wave tube is in the case of using super storage capacitor, and the equipment overwhelming majority
Bypass condition, does not consume electric energy, and projected life was up to 20 years；
Compensation depth is high, the compensation time is long：Compensation depth maximum can be to 0V, and compensating the time entirely without external energy-storage module can be extremely
1s, it is maximum up to 30s that external energy-storage module compensates the time entirely.
Brief description of the drawings
For clearer explanation the utility model embodiment and technical scheme of the prior art, below will be to implementation case
The accompanying drawing used in example or description of the prior art is briefly described, it should be apparent that, the accompanying drawing in figure below description is only this reality
With some new embodiments, for one of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is operating diagram of the present utility model；
Fig. 3 is SPWM control algolithm equivalent area schematic diagrames；
Fig. 4 is the schematic diagram of voltage dip compensating module.
Specific embodiment
In this specification announce all features disclosed all methods or during the step of, except mutually exclusive
Beyond feature/or step, can combine by any way.
This specification（Including any accessory claim, make a summary and accompanying drawing）Any feature of middle announcement, except non-specifically
Narration, can be replaced by other equivalence values or with similar purpose alternative features.I.e., unless specifically stated otherwise, each feature
A simply example in a series of equivalent or similar characteristics.
As shown in figure 1, a kind of voltage sag compensation device for single-phase equipment of the present utility model is detected including power network
Module, super energy-storage capacitor, inversion IGBT, step-up transformer, all the way systematic microprocessor, RS485 communication interfaces, all the way
ALARM alarm modules, display module, SCR through swtiches, emergency by-pass switch, it is outside set switch, relay indicating light,
Exchange all the way is input into, exchanges output, all the way direct current input composition all the way；
The background client terminal is by data wire respectively at RS485 communication interfaces all the way, all the way ALARM alarm modules company
Connect.
The power network detection module is using MCU single chip computer AT MGA88PA-AU real-time samplings record line voltage, electric current, frequency
Rate data, sample record is spaced 67 μ S, and the sine wave to line voltage carries out phase locked track.
The systematic microprocessor, display module, the outside display control that switch and relay indicating light component devices are set
Module, systematic microprocessor, display module and relay indicating light display running status and warning information, outside sets switch, is
System microprocessor, display module settable electrical network parameter, inversion parameter, capacitance parameter and systematic parameter.
The input of direct current all the way is parallel to super energy-storage capacitor, belongs to the external energy-storage module of selectivity, for increasing
Compensation capacity and compensation time.
As shown in Fig. 2 the super energy-storage capacitor, inversion IGBT, step-up transformer, composition voltage dip compensation mould
Block.Ultracapacitor is responsible for storing energy, and inversion IGBT is responsible for generating pure sine wave alternating current；
As shown in figure 3, the control algolithm of the inversion IGBT outputs pure sinusoid alternating current is based on the algorithm of area equivalent principle
The SPWM control algolithms calculated.SPWM control algolithms：Using sine wave fritter area S1 and pulse area S2 equal principles,
The positive half cycle of sine wave is divided into N deciles, then the width of each decile is π/N radians, is calculated half using the algorithm of area equivalent
N number of different pwm value in cycle, is stored in MCU single chip computer ATs MEGA88PA-AU's by the pulsewidth ordered series of numbers of generation with tabular form
In ROM, for routine call：
Sine wave area formula：
Pulse area formula：
Ton formula are drawn by area equivalent hair
In formula：
M is modulation degree
U is the electricity of super energy-storage capacitor group
N is carrier wave ratio, i.e. pulse number in a cycle, and N takes 300 here
K values are 0-299.
As shown in figure 4, the SCR through swtiches, electric current leads directly to equipment electricity consumption by SCR during electric power system normal work,
Work together and charged to energy-storage capacitor, when electric power system temporarily drops generation, SCR disconnects, cut-out civil power and protection equipment contact are prevented down
Power transmission.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any change or replacement obtained without creative work, should all cover protection domain of the present utility model it
It is interior, therefore, protection domain of the present utility model should be determined by the scope of protection defined in the claims.
Claims (6)
1. a kind of voltage sag compensation device for single-phase equipment, it is characterised in that：Power network detection module, super storage capacitor
Device, inversion IGBT, step-up transformer, all the way systematic microprocessor, RS485 communication interfaces, all the way ALARM alarm modules, display
Module, SCR through swtiches, it is outside set switch, relay indicating light, all the way exchange input, all the way exchange export, all the way direct current it is defeated
Enter, background client terminal is constituted；
Background client terminal is by data wire respectively at RS485 communication interfaces all the way, all the way connection of ALARM alarm modules.
2. a kind of voltage sag compensation device for single-phase equipment according to claim 1, it is characterised in that：Detection electricity
Net module is recorded between line voltage, electric current, frequency data, sample record using MCU single chip computer AT MGA88PA-AU real-time samplings
Every 67 μ S, the sine wave to line voltage carries out phase locked track.
3. a kind of voltage sag compensation device for single-phase equipment according to claim 1, it is characterised in that：Super storage
Energy capacitor, inversion IGBT, step-up transformer composition voltage dip compensating module, ultracapacitor are responsible for storing energy, inversion
IGBT is responsible for generating pure sine wave.
4. a kind of voltage sag compensation device for single-phase equipment according to claim 1, it is characterised in that：SCR is straight
Pass is opened up, electric current is worked together and charged to energy-storage capacitor by the straight-through equipment electricity consumptions of SCR during electric power system normal work, power supply system
During system temporarily drop generation, SCR disconnects, and cut-out civil power and protection equipment contact prevent down power transmission.
5. a kind of voltage sag compensation device for single-phase equipment according to claim 1, it is characterised in that：System is micro-
Processor, display module, the outside display control module that switch and relay indicating light component devices are set, systematic microprocessor,
Display module and relay indicating light display running status and warning information, outside sets switch, systematic microprocessor, display module
Settable electrical network parameter, inversion parameter, capacitance parameter and systematic parameter.
6. a kind of voltage sag compensation device for single-phase equipment according to claim 1, it is characterised in that：It is straight all the way
Stream input is parallel to super energy-storage capacitor, belongs to the external energy-storage module of selectivity, for increasing compensation capacity and compensation time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720002195.2U CN206313449U (en) | 2017-01-03 | 2017-01-03 | A kind of voltage sag compensation device for single-phase equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720002195.2U CN206313449U (en) | 2017-01-03 | 2017-01-03 | A kind of voltage sag compensation device for single-phase equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313449U true CN206313449U (en) | 2017-07-07 |
Family
ID=59247852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720002195.2U Active CN206313449U (en) | 2017-01-03 | 2017-01-03 | A kind of voltage sag compensation device for single-phase equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206313449U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546753A (en) * | 2017-09-29 | 2018-01-05 | 常州安凯特电缆有限公司 | A kind of Intelligent power quality apparatus for correcting and antidote |
| CN109995040A (en) * | 2017-12-29 | 2019-07-09 | 国网冀北电力有限公司张家口供电公司 | The method for solving network voltage and temporarily dropping is dispatched under a kind of micro-capacitance sensor by energy storage |
| CN110198026A (en) * | 2019-04-19 | 2019-09-03 | 中国电力科学研究院有限公司 | A kind of the voltage dip governing system and its control method of impedance isolated form |
| CN112310960A (en) * | 2020-10-16 | 2021-02-02 | 广东电网有限责任公司广州供电局 | Voltage sag compensation circuit and apparatus |
| CN112653162A (en) * | 2020-12-17 | 2021-04-13 | 广东电网有限责任公司广州供电局 | Voltage sag compensation apparatus and method |
| CN112701693A (en) * | 2020-12-18 | 2021-04-23 | 广东电网有限责任公司电力科学研究院 | Voltage sag treatment system, method, equipment and storage medium |
| CN113363975A (en) * | 2021-06-18 | 2021-09-07 | 国网四川省电力公司技能培训中心 | Shared voltage sag compensation system and method considering process immunity time |
-
2017
- 2017-01-03 CN CN201720002195.2U patent/CN206313449U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546753A (en) * | 2017-09-29 | 2018-01-05 | 常州安凯特电缆有限公司 | A kind of Intelligent power quality apparatus for correcting and antidote |
| CN109995040A (en) * | 2017-12-29 | 2019-07-09 | 国网冀北电力有限公司张家口供电公司 | The method for solving network voltage and temporarily dropping is dispatched under a kind of micro-capacitance sensor by energy storage |
| CN110198026A (en) * | 2019-04-19 | 2019-09-03 | 中国电力科学研究院有限公司 | A kind of the voltage dip governing system and its control method of impedance isolated form |
| CN110198026B (en) * | 2019-04-19 | 2024-05-14 | 中国电力科学研究院有限公司 | Impedance isolation type voltage sag management system and control method thereof |
| CN112310960A (en) * | 2020-10-16 | 2021-02-02 | 广东电网有限责任公司广州供电局 | Voltage sag compensation circuit and apparatus |
| CN112653162A (en) * | 2020-12-17 | 2021-04-13 | 广东电网有限责任公司广州供电局 | Voltage sag compensation apparatus and method |
| CN112701693A (en) * | 2020-12-18 | 2021-04-23 | 广东电网有限责任公司电力科学研究院 | Voltage sag treatment system, method, equipment and storage medium |
| CN113363975A (en) * | 2021-06-18 | 2021-09-07 | 国网四川省电力公司技能培训中心 | Shared voltage sag compensation system and method considering process immunity time |
| CN113363975B (en) * | 2021-06-18 | 2022-09-13 | 国网四川省电力公司技能培训中心 | Shared voltage sag compensation system and method considering process immunity time |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206313449U (en) | A kind of voltage sag compensation device for single-phase equipment | |
| KR100743560B1 (en) | The hi-efficiency uninterruptible inverter | |
| CN103472317B (en) | The lack detection circuit of three phase variable frequency motor | |
| CN103457283B (en) | A kind of super capacitor dynamic voltage recovery system and power-supply system | |
| CN103023344B (en) | A kind of general intelligent grid power electronic equipment | |
| CN103986173B (en) | The control method of a kind of electric power electric transformer and system | |
| CN205248805U (en) | Novel DVR voltage compensation device | |
| CN103326366A (en) | Three-single-phase-three-wire-system parallel APF/SVG device | |
| CN208433754U (en) | A kind of voltage sag compensation device for three-phase equipment | |
| CN203027153U (en) | Universal smart power grid power electronic device | |
| CN109378887B (en) | Charging pile control system | |
| CN109347182B (en) | Charging pile control unit | |
| CN104104084A (en) | Dual-core processor based active power filter controller | |
| CN202550614U (en) | Off-line discharge device of storage battery | |
| CN203481839U (en) | Super capacitor dynamic voltage recovery system and power supply system | |
| CN203104085U (en) | High-voltage direct-current power supply system | |
| CN204696691U (en) | A kind of modular harmonic wave control and reactive power compensator | |
| CN204578096U (en) | Low-voltage active electric power filter control system | |
| CN203423492U (en) | Electric energy quality series compensation control system based on solar photovoltaic power generation | |
| CN102769295A (en) | Static reactive compensation system and method of wind power converter | |
| CN204046172U (en) | A kind of active electric power filtering controller based on dual core processor | |
| CN201479046U (en) | Dynamic voltage recovery system based on solar power generation and energy storage | |
| CN203968055U (en) | A kind of modularization, centralized photovoltaic generation interface arrangement | |
| CN201674227U (en) | Flexible reactive power flow control device | |
| CN204361687U (en) | Many combined parallels static reacance generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |