CN104113246A - Automatic control system of hydroelectric generator - Google Patents
Automatic control system of hydroelectric generator Download PDFInfo
- Publication number
- CN104113246A CN104113246A CN201410244406.4A CN201410244406A CN104113246A CN 104113246 A CN104113246 A CN 104113246A CN 201410244406 A CN201410244406 A CN 201410244406A CN 104113246 A CN104113246 A CN 104113246A
- Authority
- CN
- China
- Prior art keywords
- generator
- unit
- control unit
- hydraulic turbine
- automatic control
- 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.)
- Pending
Links
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 239000010703 silicon Substances 0.000 claims abstract description 12
- 238000004458 analytical method Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000004088 simulation Methods 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 230000005284 excitation Effects 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses an automatic control system of a hydroelectric generator. The system comprises a water turbine, a generator and a network power three-phase voltage data analog quantity conversion detection analysis control unit. The input end of the water turbine is connected with a water turbine driving system; the output end of the generator is connected with a generator voltage frequency detection unit and a generator voltage data analog quantity conversion output unit; the generator voltage data analog quantity conversion output unit is connected with a controlled silicon driving unit; the controlled silicon driving unit is connected with the excitation coil of the generator; the excitation coil of the generator is also connected with a relay control unit; the relay control unit is connected with a storage battery; and the network power three-phase voltage data analog quantity conversion detection analysis control unit is connected with the water turbine driving system. The automatic control system of a hydroelectric generator has the advantage of enabling the frequency of the generator and network power frequency to maintain synchronous by automatically adjusting the water turbine driving system according to a proportion.
Description
Technical field
The present invention relates to a kind of automatic control technology of hydroelectric generator, particularly a kind of hydroelectric generator control system.
Background technology
In hydroelectric power generation unit control appliance, have at present much and also adopting simple mechanical type control, failure rate high stability is poor, the power factor fluctuation of generator output is larger, during generating electricity, often to adjust manually exciting voltage, power factor is during higher than national standard 0.85-0.90, operating personnel manually turn down exciting voltage, and power factor is heightened exciting voltage during lower than national standard again; Therefore in the electric unsettled situation of net, power factor also, all the time in fluctuation, need to be adjusted the exciting voltage of generator manually, and guarantee power factor meets national standard, and labor intensity of operating staff greatly, easily go wrong like this.
Summary of the invention
The shortcoming of prior art in view of the above, the invention provides a kind of automatic control system of hydroelectric generator, can, by netting electric three-phase voltage data analysis and judgement, automatically adjust in proportion hydraulic turbine drive system, make the frequency of generator and the electric frequency of net keep synchronous.
The object of the invention is to be achieved through the following technical solutions: a kind of automatic control system of hydroelectric generator, comprise the hydraulic turbine, generator and the electric three-phase voltage digital simulation amount transition detection analysis controlling unit of net, the input that it is characterized in that the described hydraulic turbine is connected with hydraulic turbine drive system, the output of telling generator is connected with generator voltage frequency detecting unit and generator voltage digital simulation amount conversion output unit, described generator voltage digital simulation amount transforms output unit and is connected with controllable silicon driver element, described controllable silicon driver element is connected on the magnet exciting coil of generator, on the magnet exciting coil of described generator, be also connected with relay control unit, described relay control unit is connected with storage battery, the electric three-phase voltage digital simulation of described net amount transition detection analysis controlling unit is connected with hydraulic turbine drive system.
Preferred: hydraulic turbine drive system comprises step motor control unit, stepping motor and water turbine governing mechanism, described in enter motor control unit output connect stepping motor, the output of described stepping motor connects water turbine governing mechanism.
Preferred: the automatic control system of hydroelectric generator also comprises system information display unit and system failure alarm unit.
The present invention compared with prior art has the following advantages, and adopts the automatic control system of hydroelectric generator, has improved control precision and reliability, greatly reduces failure rate, reduces manually-operated labour intensity.
Brief description of the drawings
Fig. 1 is shown as the schematic diagram of the automatic control system of a kind of hydroelectric generator of the present invention
Fig. 2 is shown as the schematic diagram of the hydraulic turbine drive system of the automatic control system of a kind of hydroelectric generator of the present invention
Embodiment
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this specification.The present invention can also be implemented or be applied by other different embodiment, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
Step motor control unit starting stepping motor, the valve of stepping motor open water turbine speed adjusting gear, system starts water inlet, the hydraulic turbine also raises along with current increase speed, the hydraulic turbine drives generator work, generator voltage frequency detecting unit starts to detect the frequency of generator, in the time that the frequency of generator reaches 45-55HZ, the adhesive of relay control unit control relay, the voltage of storage battery is added on dynamo field coil, now generator is with regard to output AC voltage, generator voltage digital simulation amount conversion output unit gathers generator output voltage, after modulus (A/D) conversion process, real-time voltage reading is presented in LCDs, carry out again digital-to-analogue (D/A) conversion simultaneously, data transaction is become to 0-5V analog voltage, the analog voltage of output removes to control controllable silicon plate driver element, drive controllable silicon, controllable silicon drives the field circuit of generator, drive the field circuit of generator through controllable silicon, 300 peaces after conversion, are produced, the exciting voltage of 0-110 volt direct current, exciting voltage is along with analog voltage changes and changes, generator is set up the exciting voltage of confession, relay control unit disconnects relay from generator, storage battery stops generator storage battery coil power supply.
Net the collection of electric three-phase voltage digital simulation amount transition detection analysis controlling unit and net electric three-phase voltage, analog voltage is converted to data, carry out data analysis and judgement simultaneously, netting afterwards by analysis electricity does not have after phase shortage problem, just start to carry out net electricity (voltage 380V, frequency 50HZ) and generator voltage, frequency synchronously contrasts, when when contrast, generator frequency is lower than the electric frequency of net, net electric three-phase voltage digital simulation amount transition detection analysis controlling unit control step motor control unit and accurately heighten in proportion the rotating speed of the hydraulic turbine, generator frequency is higher than net when electric frequency, net electric three-phase voltage digital simulation amount transition detection analysis controlling unit control step motor and accurately turn down in proportion the rotating speed of the hydraulic turbine, the frequency and the electric frequency of net that ensure generator complete synchronously, the real-time control simulation voltage of voltage of tracking network electricity so simultaneously, when when both voltage-contrast, generator voltage is lower than net piezoelectric voltage, system raises analog voltage, generator voltage is during higher than net piezoelectric voltage, just reduce analog voltage, analog voltage is being controlled in real time controllable silicon and is being sent out unit tactile, controllable silicon is sent out tactile unit can control exciting voltage height, generator excitation voltage is along with analog voltage changes and changes, the voltage of exciting voltage variation generator output and power are being followed and are being changed, ensure that like this generator voltage and net piezoelectric voltage are consistent.After a series of precision control, generator voltage and net piezoelectric voltage and Frequency Synchronization are, net electric three-phase voltage digital simulation amount transition detection analysis controlling unit and send instruction, by the high-power AC contactor adhesive being connected with net electricity, at this moment input national grid with regard to the electric energy of generator output.
Claims (3)
1. the automatic control system of a hydroelectric generator, comprise the hydraulic turbine, generator and the electric three-phase voltage digital simulation amount transition detection analysis controlling unit of net, the input that it is characterized in that the described hydraulic turbine is connected with hydraulic turbine drive system, the output of described generator is connected with generator voltage frequency detecting unit and generator voltage digital simulation amount transforms output unit, described generator voltage digital simulation amount transforms output unit and is connected with controllable silicon driver element, described controllable silicon driver element is connected on the magnet exciting coil of generator, on the magnet exciting coil of described generator, be also connected with relay control unit, described relay control unit is connected with storage battery, the electric three-phase voltage digital simulation of described net amount transition detection analysis controlling unit is connected with hydraulic turbine drive system.
2. the automatic control system of hydroelectric generator according to claim 1, it is characterized in that, described hydraulic turbine drive system comprises step motor control unit, stepping motor and water turbine governing mechanism, described enter the output of motor control unit connect stepping motor, the output of described stepping motor connects water turbine governing mechanism.
3. the automatic control system of hydroelectric generator according to claim 1 and 2, is characterized in that, also comprises system information display unit and system failure alarm unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410244406.4A CN104113246A (en) | 2014-06-04 | 2014-06-04 | Automatic control system of hydroelectric generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410244406.4A CN104113246A (en) | 2014-06-04 | 2014-06-04 | Automatic control system of hydroelectric generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104113246A true CN104113246A (en) | 2014-10-22 |
Family
ID=51709909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410244406.4A Pending CN104113246A (en) | 2014-06-04 | 2014-06-04 | Automatic control system of hydroelectric generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104113246A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109716642A (en) * | 2016-09-20 | 2019-05-03 | 大金工业株式会社 | Hydroelectric power system |
-
2014
- 2014-06-04 CN CN201410244406.4A patent/CN104113246A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109716642A (en) * | 2016-09-20 | 2019-05-03 | 大金工业株式会社 | Hydroelectric power system |
| US11041476B2 (en) | 2016-09-20 | 2021-06-22 | Daikin Industries, Ltd. | Hydroelectric power generation system |
| CN113381561A (en) * | 2016-09-20 | 2021-09-10 | 大金工业株式会社 | Hydroelectric power generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: WUXI BEIJIASITE AUTOMATION TECHNOLOGY CO., LTD. Document name: Notification that Application Deemed to be Withdrawn |
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| DD01 | Delivery of document by public notice | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141022 |
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| WD01 | Invention patent application deemed withdrawn after publication |