CN2659007Y - Master-slave-less adaptive UPS parallel system - Google Patents
Master-slave-less adaptive UPS parallel system Download PDFInfo
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- CN2659007Y CN2659007Y CN 200320116839 CN200320116839U CN2659007Y CN 2659007 Y CN2659007 Y CN 2659007Y CN 200320116839 CN200320116839 CN 200320116839 CN 200320116839 U CN200320116839 U CN 200320116839U CN 2659007 Y CN2659007 Y CN 2659007Y
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Abstract
The utility model discloses a non master-slave self-adaptive UPS parallel system which consists of a parallel communication line, a network communication line and a plurality of self-adaptive UPS parallel devices. Because the utility model is connected with the parallel communication line by a network communication interface circuit arranged herein to achieve an information exchange with other self-adaptive UPS parallel device, bring a completely same output voltage and realize a real parallel redundant power backup. The self-adaptive UPS parallel device is connected with a network communication line by an auxiliary control board arranged herein to feed the parallel information to a LCD and a remote communication interface all arranged at the UPS. The user can perform an on-line power upgrade. The utility model has the advantages of simple installation and convenient maintenance.
Description
Technical field
The utility model relates to a kind of power electronic technology and automatic control technology field, particularly relates to a kind of dereliction from self adaptation UPS parallel system.
Background technology
Multimode is in parallel to realize that high reliability, AC power that can redundant dilatation are acknowledged as one of important directions of current power technology development.Research and development process with main circuit and control circuit is the same, and high power UPS parallel running Study on Technology also is to deepen continuously on the basis of using for reference DC/DC parallel technology and the parallel extended control of AC transformer.High power UPS parallel technology was at home just becoming the focus of researcher and the concern of UPS manufacturer in recent years.Present domestic high power UPS backup mode only adopts series connection Hot Spare mode or adopts relay to carry out simple load transfer and switches backup, fail the dereliction of UPS is proposed system, complete, reliable technique scheme from parallel connection, the dereliction of visible development of new is instant from self adaptation UPS (same power, different capacity) parallel control technology.
Several backup modes that UPS proof load at present runs without interruption:
1, series connection backup mode: this mode adopts slave to be connected on working method on the main frame bypass delivery outlet, and automatically by the slave powering load, this martingale is simple, convenient, but has following shortcoming when hostdown is switched bypass:
The work of main frame bringing onto load, slave belong to no-load running when A, operate as normal; When the rear end load is big, cause main frame, slave rate of ageing difference, often need artificial outage to adjust main frame, slave position, system maintenance inconvenience.User load run without interruption cause difficulty.
B, because main frame, slave connect by electrical cable, when main frame broke down, off line needed artificial power failure that the fault machine is peeled off operational system fully.
2, redundantly switch backup: the controller switching equipment that this mode adopts Redundanter schalter to back up mutually as two-shipper, also there is the branch of principal and subordinate's machine, generally all the main frame band carries work, the slave backup; Automatically switch to the slave band by Redundanter schalter when host work is unusual and carry work; This mode principle is simple, and easy switching is easy to safeguard, but has following shortcoming equally:
The work of main frame bringing onto load, slave belong to no-load running when A, operate as normal; When the rear end load is big, cause main frame, slave rate of ageing difference, long-time running has harmful effect to equipment.
B, carry out the conversion of main frame, slave,, also just limit to its power and can't do very greatly because Redundanter schalter adopts the relay mode by the redundant switch.This redundant fashion only appears at 3KVA type once on the market now.
Summary of the invention
The purpose of this utility model be to provide a kind of dereliction from self adaptation, can be real the parallel redundancy backup, can and dereliction simple, easy to maintenance be installed in the linear heat generation rate upgrading from self adaptation UPS parallel system.
For achieving the above object, solution of the present utility model is:
The utility model be a kind of dereliction from self adaptation UPS parallel system, it is made up of order wire in parallel, network service line and Duo Tai self adaptation UPS shunting means.The communication interface in parallel of self adaptation UPS shunting means is connected with order wire in parallel, realizes the information interchange with other self adaptation UPS shunting means; Self adaptation UPS shunting means is connected with the network service line by the network communication interface on it, and the LCD to UPS upward reaches on the remote communication interface with feed information in parallel.
Described self adaptation UPS shunting means mainly distributes control circuit, network communication interface, communication interface in parallel, on line type UPS main line to form by MCU master board, assist control plate, LCD, output voltage phase-control circuit, output voltage amplitude control circuit, output current; The MCU master board is connected with LCD by the assist control plate; The output of MCU master board with distribute control circuit with output voltage phase-control circuit, output voltage amplitude control circuit, output current respectively; The MCU master board is connected with network communication interface respectively, communication interface in parallel is connected with the on line type UPS main line, realize network control and with other unit UPS information interchange.
Described output voltage phase-control circuit mainly is made of chip IC 1A, IC2A, IC3A, IC4A, IC5A, the baseline sinusoidal wave signal of formation standard after the baseline sinusoidal wave pulse drive signal that single-chip microcomputer IC2A AT89C2051 produces transforms through IC1A number～mould, single-chip microcomputer IC3A, IC4A, IC5A finish input genlock function jointly.
Described output current distributes control circuit mainly to be made of transport and placing device IC30B, IC30A, IC30D; Output load current is delivered to transport and placing device IC30D through after the sampling processing, delivers to the input of Current Feedback Control amplifier by transport and placing device IC30A and R139, and the output load current signal delivers to order wire in parallel by R137 and system carries out information exchange.
Described output voltage amplitude control circuit mainly is made of comparator IC29D, IC28 and storbing gate IC15C; The benchmark sinusoidal signal is by after handling, through synchronously, homophase, deliver to dynamic sinusoidal control bus with width of cloth storbing gate IC15C, comparator IC29D and IC28 handle the benchmark sine of output, form and the synchronous phase signal of the common sinusoidal signal of output, feed back to the synchronous pin of single-chip microcomputer IC2A.
Because self adaptation UPS shunting means of the present utility model is connected with order wire in parallel by the network communication interface circuit on it, realize information interchange with other self adaptation UPS shunting means, make output voltage identical, realized the real parallel redundancy backup of power, not only realize direct mean allocation load in parallel, and realize the function of different capacity UPS pro-rata load directly in parallel with power UPS.Self adaptation UPS shunting means is connected with the network service line by the assist control plate on it, and the LCD to UPS upward reaches on the remote communication interface with feed information in parallel, and the user can upgrade at linear heat generation rate, has advantage simple, easy to maintenance is installed.
In addition, the utility model also has following characteristics:
1, dereliction is from self adaptation UPS parallel redundancy control model: native system adopts micro-control technology (MCU) that UPS is carried out intelligentized control and management, after MCU sampling input line voltage, output voltage, output load current are handled, to each unit in the parallel system carry out the same frequency, homophase of alternating voltage, with width of cloth control, the sharing control of output current.Make the alternating current of UPS output directly in parallelly to export, and load-sharing.
Press rated power coefficient distribution load current when 2, different capacity UPS is in parallel: by to the sampling of output current with to the judgement of the rated power of UPS own, make that output load current and the rated power coefficient of itself of unit UPS is proportional in the parallel system, parallel system pro-rata load current.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is a system block diagram of the present utility model;
Fig. 2 is the structured flowchart of the utility model unit;
Fig. 3 is output voltage phase-control circuit figure of the present utility model;
Fig. 4 is that output current of the present utility model distributes control circuit figure;
Fig. 5 is that output current of the present utility model distributes control circuit figure;
Fig. 6 is another kind of output voltage phase sampling circuit figure of the present utility model
Fig. 7 is a line formula UPS main line block diagram of the present utility model.
Embodiment
As shown in Figure 1, the utility model dereliction is made up of order wire in parallel, network service line and Duo Tai self adaptation UPS shunting means from self adaptation UPS parallel system.The communication interface in parallel of self adaptation UPS shunting means is connected with order wire in parallel, realizes the information interchange with other self adaptation UPS shunting means; Self adaptation UPS shunting means is connected with the network service line by the network communication interface on it, and the LCD to UPS upward reaches on the remote communication interface with feed information in parallel.
As shown in Figure 2, described self adaptation UPS shunting means mainly distributes control circuit 6, network communication interface 7, communication interface in parallel 8, on line type UPS main line 9 to form by MCU master board 1, assist control plate 2, LCD3, output voltage phase-control circuit 4, output voltage amplitude control circuit 5, output current.MCU master board 1 is connected with LCD3 by assist control plate 2; The output of MCU master board 1 with distribute control circuit 6 with output voltage phase-control circuit 4, output voltage amplitude control circuit 5, output current respectively; MCU master board 1 is connected with network communication interface 7 respectively, communication interface in parallel 8 is connected with on line type UPS main line 9 tunnel.MCU master board 1 one side is controlled on line type UPS main line 9 and is carried out unit inversion output control, carries out information interchange by other units UPS in communication interface 8 in parallel and the parallel system on the other hand, guarantees the identical and load current distribution of output voltage; The third aspect by assist control plate 2 with feed information in parallel on UPS Chinese LCD3 and remote communication interface, make control hommization and network controlization.
As shown in Figure 3, described output voltage phase-control circuit 4 mainly is made of single-chip microcomputer IC1A, IC2A, IC3A, IC4A, IC5A.1., utilize single-chip microcomputer IC2A (adopt model be the single-chip microcomputer of AT89C2051) to carry out inversion circuit fundamental sine wave shape to take place its course of work is:, single-chip microcomputer IC2A handles through internal processes, produces the digit pulse drive signal of sinusoidal wave Vrem=Vm*sin (ω t+ φ).2., the baseline sinusoidal wave pulse drive signal that produces by single-chip microcomputer IC2A through single-chip microcomputer IC1A (DAC0832) count～mould transforms the baseline sinusoidal wave signal Vrem=Vm*sin (ω t+ φ) that the back forms standard, as the sinusoidal waveform benchmark of control inverter.Guarantee that the inverter output voltage waveform can satisfactory sine wave.3., single-chip microcomputer IC3A, IC4A, IC5A finish input genlock function jointly, is provided at the genlock under the civil power normal condition.4., single-chip microcomputer IC2A2051 also comprises Voltage Feedback, current feedback, input synchronously, the processing of Parallel Control etc., it is the main control part of whole UPS parallel connection, by being handled, voltage feedback signal make output voltage keep the 220Vac of requirement, by to current feedback then proof load size change can not influence the UPS output voltage and each unit in the parallel system is divided equally (or coefficient distributes in proportion) load current control, the input Synchronization Control then is to guarantee that the frequency of output voltage when the civil power input is arranged and angle phi and frequency of input voltage and starting phase angle φ are consistent.
As shown in Figure 4, described output current distributes control circuit 6 mainly to be made of transport and placing device IC30B, IC30A, IC30D.1., output load current is through delivering to transport and placing device IC30D after the sampling processing, delivers to the input of Current Feedback Control amplifier by transport and placing device IC30A and R139 its course of work is:.2., the output load current signal is delivered to order wire in parallel by R137 and system carries out information exchange, after treatment, can obtain several parallel UPS unit the mean allocation current signal (I is total/n), or different capacity UPS and connect the current reference signal that power coefficient distributes (Ki * I is total/n).3., by comparison, the amplification of single blocks current signal in parallel and reference signal, draw relevant error signal, this error signal guarantees the current-sharing or the pro rate load of unit in parallel as the error adjustment amount of inversion ring in unit in parallel.
As shown in Figure 5, described output voltage amplitude control circuit 5 mainly is made of comparator IC29D, IC28 and storbing gate IC15C.Its course of work is: 1. unit benchmark sinusoidal signal is by after handling, through synchronously, homophase, deliver to dynamic sinusoidal control bus with width of cloth storbing gate IC15C, and after information exchange and handling, reference signal amplitude and phase place that the adjustment of feedback error is intact.2. the benchmark sine by order wire in parallel and other UPS compares mutually, control, guarantee benchmark in the parallel system sinusoidal keep one to, make the output voltage of parallel operation can reach the same width of cloth, with the control of frequency, identical starting phase angle.3. by comparator IC29D and IC28 the benchmark sine of output is handled, formed and the synchronous phase signal of the common sinusoidal signal of output, feed back to the synchronous pin of single-chip microcomputer IC2A (2051), realize the Synchronization Control of multimachine.
Fig. 6 is an output voltage sampling circuit.Exchange the input city signal of telecommunication through the step-down of sampling transformer after, through R49, R50, the R51 dividing potential drop range of decrease meets the sine wave signal of chip input to amplitude, and through after the C13A filtering at IC6A-7P formation frequency and the synchronous square wave of civil power sinusoidal waveform zero crossing; This square wave is sent into the AC synchronous pin of MCU chip, behind the register and software inhouse processing through MCU, guarantees the synchronous constantly of output reference sine wave and input AC waveform.
As shown in Figure 7, on line type UPS main line 9 adopts pure online inversion control pattern, civil power by rectification after and battery form the DC parallel redundancy backup, offer inverter and carry out the DC/AC inversion control, output is stablized alternating voltage 220Vac and is offered load, and main line inside comprises controllable silicon auto by pass circuit and MMBM multi-mode charging control circuit; No matter input AC and DC voltage, output loading change, output all keeps stable 220Vac effective voltage, and the output AC voltage frequency is stable 50Hz.
Communication interface 8 in parallel is to adopt the DB9 Interface Terminal to connect, and is the contact tie that mutual information exchanges between unit in the parallel system, realizes the information exchange of the dereliction of unit UPS from the self adaptation parallel connection by communication interface in parallel.In the work of UPS unit, this parallel connection communication interface can be directly unsettled, need not take over what connecting line.
By network communication interface 7, host computer can carry out centralized monitor to parallel redundant system by communication modes such as RS232, RS485 or SNMP cards, make the monitor staff a long way off or network can monitor from self adaptation UPS parallel redundant system dereliction.
MCU control board 1 is except finishing the interface 8,7 and information interchange with above-mentioned in parallel, telecommunication circuit; also be responsible for carrying out the interface of signals such as logic, driving with assist control plate 2, Chinese LCD3 display panel; finish other function of UPS jointly with assist control plate 2, Chinese LCD3 display panel; comprising inverter control, driving, protection, logic etc., also is the building block of parallel UPS unit.
The utility model dereliction is from the principle of self adaptation UPS Parallel Control
Parallel connection for AC power, the output voltage of each power subsystem is V=Vm*sin (ω t+ φ), for the effectively current-sharing power supply of output that guarantees a plurality of unit in parallel, must take effective control strategy, make the output voltage amplitude of each UPS voltage source, frequency, the phase angle guarantees to equate constantly, therefore, at the dereliction of this programme from adaptive parallel connection, adopt the MCU digital device to finish to each parallel UPS unit output amplitude, frequency, the control of the fast closed-loop at phase angle, the dereliction of having realized exchanging ups power from, the any N+1 redundant parallel of self adaptation.It is as follows that concrete PID mathematics is regulated algorithm:
1) UPS exchanges frequency modulation in parallel, phase modulation principle:
Frequency, the phase place adjustment just often of a, civil power
Dynamic synchronization: f
1→ f
LINE, f
2→ f
LINEφ
1→ φ
LINE, φ
2→ φ
LINE
Stable state is synchronous:
Frequency when b, city's electrical anomaly, phase place adjustment
Dynamic synchronization: f
1→ f
SIN, f
2→ f
SINφ
1→ φ
SIN, φ
2→ φ
SIN
Stable state is synchronous:
2) amplitude modulation principle in parallel
A, output voltage initialization: U
1=U
2=U
0, U
0Be rated voltage
B, stable state amplitude are adjusted:
3) Error Feedback of electric current is adjusted principle
Claims (6)
1, a kind of dereliction is characterized in that from self adaptation UPS parallel system: it is made up of order wire in parallel, network service line and Duo Tai self adaptation UPS shunting means; The communication interface in parallel of self adaptation UPS shunting means is connected with order wire in parallel, realizes the information interchange with other self adaptation UPS shunting means; Self adaptation UPS shunting means is connected with the network service line by the network communication interface on it, and the LCD to UPS upward reaches on the remote communication interface with feed information in parallel.
2, dereliction according to claim 1 is characterized in that from self adaptation UPS parallel system: described self adaptation UPS shunting means mainly distributes control circuit, network communication interface, communication interface in parallel, on line type UPS main line to form by MCU master board, assist control plate, LCD, output voltage phase-control circuit, output voltage amplitude control circuit, output current; The MCU master board is connected with LCD by the assist control plate; The output of MCU master board with distribute control circuit with output voltage phase-control circuit, output voltage amplitude control circuit, output current respectively; The MCU master board is connected with network communication interface respectively, communication interface in parallel is connected with the on line type UPS main line, realize network control and with other unit UPS information interchange.
3, dereliction according to claim 2 is from self adaptation UPS parallel system, it is characterized in that: the main single-chip microcomputer IC1A of described output voltage phase-control circuit, IC2A, IC3A, IC4A, IC5A constitute, the baseline sinusoidal wave signal of formation standard after the baseline sinusoidal wave pulse drive signal that single-chip microcomputer IC2A produces transforms through IC1A number～mould, single-chip microcomputer IC3A, IC4A, IC5AG finish input genlock function jointly.
4, dereliction according to claim 3 is characterized in that from self adaptation UPS parallel system: described single-chip microcomputer is AT89C2051.
5, dereliction according to claim 2 is characterized in that from self adaptation UPS parallel system: described output current distributes control circuit mainly to be made of transport and placing device IC30B, IC30A, IC30D; Output load current is delivered to amplifier IC30D through after the sampling processing, delivers to the input of Current Feedback Control amplifier by transport and placing device IC30A and R139, and the output load current signal delivers to order wire in parallel by R137 and system carries out information exchange.
6, dereliction according to claim 2 is characterized in that from self adaptation UPS parallel system: described output voltage amplitude control circuit mainly is made of comparator IC29D, IC28 and storbing gate IC15C; The benchmark sinusoidal signal is by after handling, through synchronously, homophase, deliver to dynamic sinusoidal control bus with width of cloth storbing gate IC15C, comparator IC29D and IC28 handle the benchmark sine of output, form and the synchronous phase signal of the common sinusoidal signal of output, feed back to the synchronous pin of single-chip microcomputer IC2A.
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|---|---|---|---|
| CN 200320116839 CN2659007Y (en) | 2003-10-01 | 2003-10-01 | Master-slave-less adaptive UPS parallel system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200320116839 CN2659007Y (en) | 2003-10-01 | 2003-10-01 | Master-slave-less adaptive UPS parallel system |
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| CN2659007Y true CN2659007Y (en) | 2004-11-24 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611587A (en) * | 2011-12-21 | 2012-07-25 | 华为技术有限公司 | Monitoring method and system of uninterruptible power supply parallel computer system |
| CN102890461A (en) * | 2012-10-12 | 2013-01-23 | 广东易事特电源股份有限公司 | Synchronous control system for parallel operation of multiple UPSs (uninterrupted power supply) |
| CN103345404A (en) * | 2013-06-09 | 2013-10-09 | 深圳市晶福源电子技术有限公司 | UPS system updating method and system |
| CN105743634A (en) * | 2016-03-28 | 2016-07-06 | 阳光电源股份有限公司 | Parallel equipment system and carrier synchronization control method thereof |
| CN107765585A (en) * | 2016-08-23 | 2018-03-06 | 南京中兴新软件有限责任公司 | The upgrade method of digital power, apparatus and system |
| CN109617221A (en) * | 2018-11-19 | 2019-04-12 | 浙江德塔森特数据技术有限公司 | The uninterruptible power system and its network-building method of adjustable power configuration |
| CN113541187A (en) * | 2021-07-13 | 2021-10-22 | 湖南普莱思迈电子科技有限公司 | Intermediate frequency sine wave alternating current power supply parallel operation system and control system thereof |
| CN117439277A (en) * | 2023-12-21 | 2024-01-23 | 天津航空机电有限公司 | Communication network structure and communication method of secondary power distribution system |
-
2003
- 2003-10-01 CN CN 200320116839 patent/CN2659007Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611587A (en) * | 2011-12-21 | 2012-07-25 | 华为技术有限公司 | Monitoring method and system of uninterruptible power supply parallel computer system |
| CN102890461A (en) * | 2012-10-12 | 2013-01-23 | 广东易事特电源股份有限公司 | Synchronous control system for parallel operation of multiple UPSs (uninterrupted power supply) |
| CN102890461B (en) * | 2012-10-12 | 2014-07-16 | 广东易事特电源股份有限公司 | Synchronous control system for parallel operation of multiple UPSs (uninterrupted power supply) |
| CN103345404A (en) * | 2013-06-09 | 2013-10-09 | 深圳市晶福源电子技术有限公司 | UPS system updating method and system |
| CN103345404B (en) * | 2013-06-09 | 2016-08-17 | 深圳晶福源科技股份有限公司 | The upgrade method of a kind of ups system and system |
| CN105743634B (en) * | 2016-03-28 | 2019-02-01 | 阳光电源股份有限公司 | A kind of parallel connection device systems and its carrier synchronization control method |
| CN105743634A (en) * | 2016-03-28 | 2016-07-06 | 阳光电源股份有限公司 | Parallel equipment system and carrier synchronization control method thereof |
| CN107765585A (en) * | 2016-08-23 | 2018-03-06 | 南京中兴新软件有限责任公司 | The upgrade method of digital power, apparatus and system |
| CN109617221A (en) * | 2018-11-19 | 2019-04-12 | 浙江德塔森特数据技术有限公司 | The uninterruptible power system and its network-building method of adjustable power configuration |
| CN113541187A (en) * | 2021-07-13 | 2021-10-22 | 湖南普莱思迈电子科技有限公司 | Intermediate frequency sine wave alternating current power supply parallel operation system and control system thereof |
| CN113541187B (en) * | 2021-07-13 | 2022-09-02 | 湖南普莱思迈电子科技有限公司 | Intermediate frequency sine wave alternating current power supply parallel operation system and control system thereof |
| CN117439277A (en) * | 2023-12-21 | 2024-01-23 | 天津航空机电有限公司 | Communication network structure and communication method of secondary power distribution system |
| CN117439277B (en) * | 2023-12-21 | 2024-04-09 | 天津航空机电有限公司 | Communication network structure and communication method of secondary power distribution system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131001 Granted publication date: 20041124 |