CN104319821A - Parallel and synchronous control system for unit busbars - Google Patents
Parallel and synchronous control system for unit busbars Download PDFInfo
- Publication number
- CN104319821A CN104319821A CN201410639084.3A CN201410639084A CN104319821A CN 104319821 A CN104319821 A CN 104319821A CN 201410639084 A CN201410639084 A CN 201410639084A CN 104319821 A CN104319821 A CN 104319821A
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- China
- Prior art keywords
- parallel
- controller
- busbar
- unit
- generator set
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention provides a parallel and synchronous control system for unit busbars. The parallel and synchronous control system for the unit busbars comprises a parallel controller, the two parallel busbars connected with the input end of the parallel controller, and a master switch controlled by the parallel controller and connected between the two busbars. Each busbar comprises multiple parallel units; each unit is provided with a unit controller, a speed regulator, a voltage regulator, a motor and a closing relay, wherein the unit controller is connected with the output end of the parallel controller, and the speed regulator, the voltage regulator, the motor and the closing relay are controlled by the unit controller. The parallel and synchronous control system for the unit busbars has the advantages of being scientific in design, simple in structure, high in reliability and low in synchronous closing control difficulty.
Description
Technical field
The present invention relates to a kind of busbar control system, specifically, relate to a kind of unit busbar synchronous control system in parallel.
Background technology
Existing wiring bus bar mode generally has two kinds, (1) single wiring bus bar, each loop of this mode of connection is received on this group bus by a circuit breaker and one group of bus isolating switch, its advantage be wiring simple, easy to operate, easily extend, but because all circuits are all on one group of bus, once need maintenance or break down, whole circuit all can be made out of service, poor reliability, moves dumb.(2) segmentation wiring bus bar, with circuit breaker, one section of bus is divided into multistage exactly, the impact between each section of bus diminishes, can ensure when a certain section of busbar fault that all the other each section is continued power supply, reliability is high, but when busbar is charged, the control difficulty of two sections of busbar synchroswitchings is large.
In order to solve above Problems existing, people are seeking a kind of desirable technical solution always.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, thus provide the unit busbar that a kind of design science, structure are simple, reliability is high, synchroswitching controls simple advantage synchronous control system in parallel.
To achieve these goals, the technical solution adopted in the present invention is: a kind of unit busbar synchronous control system in parallel, comprise two groups of busbars parallel with one another that parallel controller is connected with this parallel controller input and controlled by this parallel controller and be connected to the master switch between two busbars, described busbar comprises many groups unit in parallel, and each unit is equipped with the generator set controller connecting described parallel controller output and the speed regulator, voltage regulator, motor and the closing relay that are controlled by this generator set controller.
Described on base, described parallel controller is by each generator set controller of two core ribbon shielding Parallel Control line traffic controls.
Hinge structure of the present invention has outstanding substantive distinguishing features and significant progress, specifically, the present invention uses parallel controller and the busbar of generator set controller to parallel connection to control, two sections of busbars all connect the input of parallel controller, the output of parallel controller connects each generator set controller to control and to coordinate target voltage and the target frequency of unit, by two groups of busbar called after busbar A and busbar B, parallel controller calculates target frequency and the target voltage of busbar B by the electric voltage frequency gathering busbar A, then instruction is sent to each generator set controller in busbar B group, allocating task, Negotiation speed adjuster (GOV) makes the generating frequency of unit reach target frequency, the generating voltage of unit is made to reach target voltage by voltage regulator (AVR), when parallel controller detects that busbar A and busbar B reaches synchronous condition, send order of closing a floodgate, control master switch closes a floodgate.After combined floodgate, parallel controller is according to the power of busbar A and busbar B, calculate target active power and the target reactive power of busbar A and busbar B respectively, carry out task matching again, target active power and target reactive power is sent respectively to each generator set controller in busbar A and in busbar B, generator set controller Negotiation speed adjuster (GOV) makes the active power of unit reach target active power, make the reactive power of unit reach target reactive power by control voltage adjuster (AVR), realize power division.
Further, adopt two core ribbon shielding Parallel Control lines to connect, ensure that the stability of signal transmission.
It has design science, structure is simple, reliability is high, synchroswitching controls simple advantage.
A kind of unit busbar synchronous control system in parallel, comprise parallel controller, the busbar parallel with one another be connected with this parallel controller input and civil power input module and control two switches of described busbar and described civil power input module respectively, described busbar comprises many groups unit in parallel, and each unit is equipped with the generator set controller connecting described parallel controller output and the speed regulator, voltage regulator and the closing relay that are controlled by this generator set controller.
Described on base, described parallel controller is by each generator set controller of two core ribbon shielding Parallel Control line traffic controls.
Hinge structure of the present invention has outstanding substantive distinguishing features and significant progress, specifically, busbar and civil power are all connected the input of parallel controller, when needs are synchronous, the electric voltage frequency of parallel controller collection civil power calculates target frequency and the target voltage of busbar, then the generator set controller in each group of unit is controlled, each generator set controller Negotiation speed adjuster (GOV) makes the generating frequency of unit reach target frequency, the generating voltage of unit is made to reach target voltage by voltage regulator (AVR), after parallel controller detects that busbar and civil power reach synchronous condition, send order of closing a floodgate, control breaker closing.
After combined floodgate, parallel controller sends target active power signal and target reactive power signals to each generator set controller, after generator set controller receives this control signal, generator set controller makes the active power of unit reach target active power by control rate adjuster (GOV), make the reactive power of unit reach target reactive power by control voltage adjuster (AVR), realize power division.
It has design science, practical, production efficiency is high, production cost is low, the reliable advantage of the quality of production.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1 in the present invention.
Fig. 2 is the structural representation of embodiment 2 in the present invention.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of unit busbar synchronous control system in parallel, comprise parallel controller, two groups of busbars parallel with one another be connected with this parallel controller input and controlled by this parallel controller and be connected to the master switch Q between two busbars, described busbar comprises many groups unit in parallel, each unit is equipped with the generator set controller connecting described parallel controller output and the speed regulator (GOV) controlled by this generator set controller, voltage regulator (AVR), motor and closing relay, described parallel controller is by each generator set controller of two core ribbon shielding Parallel Control line traffic controls.The closing relay of each unit is controlled by the generator set controller of correspondence, coordinates the distribution of parallel controller to the target voltage of each unit and target frequency to judge to disconnect or close.
During use, press master switch Q, now, if parallel controller only collects one group of busbar electric voltage frequency information, namely only have one group of busbar voltage effective, then main switch relay exports, and master switch closes, busbar and busbar parallel running; If collect two groups of busbar electric voltage frequency information, parallel controller will be the target voltage frequency of another group busbar of benchmark with wherein one group of busbar electric voltage frequency, then each generator set controller in another group busbar is sent a signal to, corresponding target voltage and target frequency is reached to control each unit, parallel controller detects that the electric voltage frequency information of two groups of busbars reaches combined floodgate when requiring, send instruction and control the output of busbar closing relay, master switch closes, and carries out the distribution of each unit active power and reactive power afterwards.
If disconnected by master switch, busbar and busbar off-the-line are run, and do not interfere with each other.
Embodiment 2
The present embodiment is as different from Example 1: unit busbar synchronous control system in parallel comprises parallel controller, the busbar parallel with one another be connected with this parallel controller input and civil power input module and controls two switches of described busbar and described civil power input module respectively, described busbar comprises many groups unit in parallel, and each unit is equipped with the generator set controller connecting described parallel controller output and the speed regulator (GOV) controlled by this generator set controller, voltage regulator (AVR) and closing relay.
During use, press urban electric power switch Q2 control button, if busbar switch Q1 is in off-state, urban electric power switch relay obtains electric, and civil power exports.If busbar switch Q1 is closed, parallel controller coordinates generator set controller, with line voltage frequency for the electric voltage frequency of benchmark to busbar adjusts, condition meets parallel connection when requiring, urban electric power switch Q2 closes, civil power is in parallel with busbar, the soft transfer of controller control load, carries out normal load distribution after load transfer terminates.
If first press busbar switch Q1 control button, if urban electric power switch Q2 disconnects, busbar switch relay obtains electric, and busbar switch Q1 closes; If urban electric power switch Q2 is closed, the voltage of the electric voltage frequency adjustment busbar of the civil power that parallel controller foundation collects and frequency, when synchronous condition meets, busbar switch relay obtains electric, busbar switch Q1 closes, busbar and commercial power parallel, the soft transfer of control load before airplane crash, carries out normal load distribution after load turns.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (4)
1. a unit busbar synchronous control system in parallel, it is characterized in that: it comprises two groups of busbars parallel with one another that parallel controller is connected with this parallel controller input and is controlled by this parallel controller and be connected to the master switch between two busbars, described busbar comprises many groups unit in parallel, and each unit is equipped with the generator set controller connecting described parallel controller output and the speed regulator, voltage regulator, motor and the closing relay that are controlled by this generator set controller.
2. unit busbar according to claim 1 synchronous control system in parallel, is characterized in that: described parallel controller is by each generator set controller of two core ribbon shielding Parallel Control line traffic controls.
3. a unit busbar synchronous control system in parallel, it is characterized in that: it comprises parallel controller, the busbar parallel with one another be connected with this parallel controller input and civil power input module and controls two switches of described busbar and described civil power input module respectively, described busbar comprises many groups unit in parallel, and each unit is equipped with the generator set controller connecting described parallel controller output and the speed regulator, voltage regulator and the closing relay that are controlled by this generator set controller.
4. unit busbar according to claim 3 synchronous control system in parallel, is characterized in that: described parallel controller is by each generator set controller of two core ribbon shielding Parallel Control line traffic controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410639084.3A CN104319821A (en) | 2014-11-13 | 2014-11-13 | Parallel and synchronous control system for unit busbars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410639084.3A CN104319821A (en) | 2014-11-13 | 2014-11-13 | Parallel and synchronous control system for unit busbars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104319821A true CN104319821A (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410639084.3A Pending CN104319821A (en) | 2014-11-13 | 2014-11-13 | Parallel and synchronous control system for unit busbars |
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| Country | Link |
|---|---|
| CN (1) | CN104319821A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5745356A (en) * | 1996-06-25 | 1998-04-28 | Exide Electronics Corporation | Independent load sharing of AC power systems connected in parallel |
| CN201556969U (en) * | 2009-07-17 | 2010-08-18 | 深圳市沃尔奔达新能源股份有限公司 | Power supply system |
| CN203589744U (en) * | 2013-12-06 | 2014-05-07 | 湖北鹰牌动力科技有限公司 | Emergency system applied to generator set parallel operation local control |
-
2014
- 2014-11-13 CN CN201410639084.3A patent/CN104319821A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5745356A (en) * | 1996-06-25 | 1998-04-28 | Exide Electronics Corporation | Independent load sharing of AC power systems connected in parallel |
| CN201556969U (en) * | 2009-07-17 | 2010-08-18 | 深圳市沃尔奔达新能源股份有限公司 | Power supply system |
| CN203589744U (en) * | 2013-12-06 | 2014-05-07 | 湖北鹰牌动力科技有限公司 | Emergency system applied to generator set parallel operation local control |
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Application publication date: 20150128 |
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| RJ01 | Rejection of invention patent application after publication |