CN203104121U - Device for performing primary frequency modulation of generator set by use of PMU frequency information - Google Patents
Device for performing primary frequency modulation of generator set by use of PMU frequency information Download PDFInfo
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- CN203104121U CN203104121U CN2013200943834U CN201320094383U CN203104121U CN 203104121 U CN203104121 U CN 203104121U CN 2013200943834 U CN2013200943834 U CN 2013200943834U CN 201320094383 U CN201320094383 U CN 201320094383U CN 203104121 U CN203104121 U CN 203104121U
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- pmu
- generating set
- frequency data
- dcs
- frequency
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- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
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Abstract
The utility model discloses a device for performing primary frequency modulation of a generator set by use of PMU frequency information, which comprises a PMU device and a frequency data capturing and sending device, wherein the frequency data capturing and sending device is used for analyzing the frequency data of the PMU device and sending the frequency data to the DCS or DEH of the generator set, so that the generator set performs primary frequency modulation according to the received frequency data; an input end of the frequency data capturing and sending device is connected with the PMU device or a communication network between the PMU device and a scheduling center; and an output end of the frequency data capturing and sending device is connected with the DCS or DEH of the generator set. According to the device disclosed by the utility model, the frequency data capturing and sending device captures the required frequency data for the PMU device by use of the frequency data detected by the PMU device, and sends the frequency data to the DCS or DEH of the generator set; and the DCS or DEH of the generator set takes the data as a standard of primary frequency modulation, so that the primary frequency modulation is more accurate.
Description
Technical field
The utility model relates to the generating set primary frequency regulation technical field, relates in particular to the device that a kind of PMU of employing frequency information carries out generating set primary frequency regulation.
Background technology
Mains frequency is an important indicator of weighing the quality of power supply, and it is the important channel of keeping mains frequency that the unit that generates electricity by way of merging two or more grid systems participates in primary frequency modulation, and the primary frequency modulation function is one of indispensable function of generating set.Generating set primary frequency regulation is mainly realized by Logical Configuration in the DCS of generating set or DEH, when logic determines goes out speed discrepancy above the primary frequency modulation dead band, start corresponding control strategy, according to the frequency change size, ratio rapid adjustment generating set is exerted oneself as requested, keep and send out the power supply equilibrium,transient, reach the purpose of primary frequency modulation.
All use rotational speed probe or frequency transmitter to detect frequency when generating set carries out primary frequency modulation mostly at present, as the frequency modulation standard.And existing rotational speed probe and frequency transmitter certainty of measurement are often not enough, thus when the detection error is excessive, will cause the primary frequency modulation performance of a different dive to close requirement or misoperation, thus cause the problem of primary frequency modulation tripping, malfunction or exercise amplitude not enough.
The utility model content
The purpose of this utility model provides a kind of device that can improve the primary frequency modulation precision.
The utility model adopts following technical proposals:
Adopt the PMU frequency information to carry out the device of generating set primary frequency regulation, comprise the PMU device, comprise that also frequency data grasp dispensing device, described frequency data grasp DCS or the DEH that dispensing device is used for the frequency data of PMU device are resolved and are sent to generating set, make generating set carry out primary frequency modulation according to the described frequency data that receive, described frequency data grasp the input connection PMU device of dispensing device or the communication network between PMU device and control centre, and described frequency data grasp the DCS or the DEH of the output connection generating set of dispensing device.
Described frequency data grasp dispensing device and are the simulation main website, and the input of described simulation main website connects the communication network between PMU device or PMU device and control centre, and the output of simulation main website connects the DCS or the DEH of generating set.
Described frequency data grasp dispensing device and comprise the mirror image switch and monitor main frame, described mirror image switch connected the PMU device by mirror port, mirror port connects monitors main frame, the output of monitoring main frame connects the DCS or the DEH of generating set.
Described frequency data grasp dispensing device and comprise communication processing module and communication interface, and the input of described communication processing module connects the output of PMU device, and the output of communication processing module connects the DCS or the DEH of generating set by communication interface.
Use the MODBUS communications protocol between the DCS of described frequency data extracting dispensing device and generating set or the DEH.
The frequency data that the utility model utilizes the PMU device to detect, grasp dispensing device by frequency data and the PMU device is carried out the parsing of required frequency data, and frequency data are sent to the DCS or the DEH of generating set, the DCS of generating set or DEH are the primary frequency modulation standard with these data, thereby make primary frequency modulation more accurate.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2 is that the structure of embodiment 1 described in the utility model connects block diagram;
Fig. 3 is that the structure of embodiment 2 described in the utility model connects block diagram;
Fig. 4 is that the structure of embodiment 3 described in the utility model connects block diagram.
Embodiment
As shown in Figure 1, adopt the PMU frequency information to carry out the device of generating set primary frequency regulation, comprise the PMU device, described PMU device and control centre carry out communication by Ethernet, comprise that also frequency data grasp dispensing device, described frequency data grasp DCS or the DEH that dispensing device is used for the frequency data of PMU device are resolved and are sent to generating set, make generating set carry out primary frequency modulation according to this data value that receives, described frequency data grasp the input connection PMU device of dispensing device or the communication network of PMU device and control centre, and described frequency data grasp the DCS or the DEH of the output connection generating set of dispensing device.
Embodiment 1: as shown in Figure 2, described frequency data grasp dispensing device and are the simulation main website, and the input of described simulation main website connects the output of PMU device, and the output of simulation main website connects the DCS or the DEH of generating set.According to the standard-required of PMU, the PMU device all possesses the function of communicating by letter with a plurality of main websites (being described control centre) simultaneously.The utility model is provided with an industrial computer and is the simulation main website, communicates by letter with PMU by simulation main website operation simulation center.After the simulation main website obtains frequency information, by communication mode frequency numerical value is sent into DCS or DEH again.Calculate the primary frequency modulation actuating quantity by Logical Configuration in DCS or the DEH, the adjustment generating set is exerted oneself and is reached the primary frequency modulation purpose.
Embodiment 2: as shown in Figure 3, described frequency data grasp dispensing device and comprise the mirror image switch and monitor main frame, described mirror image switch connected the PMU device by mirror port, mirror port connects monitors main frame, the output of monitoring main frame connect generating set DCS or DEH.Present embodiment adopts the data image mode that PMU device and master station communication are monitored, the data of the PMU device being issued main website copy to the monitoring main frame, monitoring main frame resolves the data of duplicating by stipulations, find wherein required frequency data, by communication modes frequency is delivered to DCS or DEH again.Not needing does not so need to carry out alternate acknowledge with the PMU device to the change of PMU device internal processes, can not increase the weight of the burden of PMU device.
Embodiment 3: as shown in Figure 4, described frequency data grasp dispensing device and comprise communication processing module and communication interface, the input of described communication processing module connects the output of PMU device, the output of communication processing module connects the DCS or the DEH of generating set by communication interface, the communication processing module that the described communication processing module of present embodiment can use the PMU device itself to have, also can increase a new communication processing module, communication processing module so directly is transferred to generating set DCS or DEH by communication port with the frequency data that measurement calculates.The installation cost of present embodiment is minimum.
Use the MODBUS communications protocol between the DCS of described frequency data extracting dispensing device and generating set or the DEH.Present main flow generating set DCS and DEH support MODBUS communications protocol mode, therefore can be by setting up the MODBUS communication, and the frequency signal that the frequency data grabbing device is obtained is transferred to generating set DCS or DEH.The MODBUS communication can adopt modes such as RS485, RS232, Ethernet to carry out physical connection.
For the generating set DCS and the DEH that do not support the MODBUS communications protocol, can adopt other communications protocol and generating set DCS and DEH to carry out communication.For DCS that does not support communication and DEH, also can adopt 8421 modes, be about to frequency signal and be converted to 16 tunnel switching value signal, by 16 way switch amount input signals, frequency signal is sent to generating set DCS.Because with communication modes or 8421 modes frequency data are transferred to DCS, and analog quantity 4 ~ 20mA transmission means of unconventional employing, data precision can not be affected.
The utility model frequency of utilization data grasp dispensing device and grasp the standard of the frequency data of PMU device as generating set primary frequency regulation, described frequency data grasp dispensing device and are not limited to above-mentioned three kinds of embodiment, can realize that the DCS or the DEH that resolve the frequency data of PMU device and be sent to generating set get final product.Solve the problem of the primary frequency modulation tripping, malfunction or the exercise amplitude not enough that cause inadequately owing to turbine speed probe and frequency transmitter certainty of measurement among the DCS by said method, and then improved the action qualification rate and the accuracy of generating set primary frequency regulation.
Claims (5)
1. adopt the PMU frequency information to carry out the device of generating set primary frequency regulation, comprise the PMU device, it is characterized in that: comprise that also frequency data grasp dispensing device, described frequency data grasp DCS or the DEH that dispensing device is used for the frequency data of PMU device are resolved and are sent to generating set, make generating set carry out primary frequency modulation according to the described frequency data that receive, described frequency data grasp the input connection PMU device of dispensing device or the communication network between PMU device and control centre, and described frequency data grasp the DCS or the DEH of the output connection generating set of dispensing device.
2. employing PMU frequency information according to claim 1 carries out the device of generating set primary frequency regulation, it is characterized in that: described frequency data grasp dispensing device and are the simulation main website, the input of described simulation main website connects the communication network between PMU device or PMU device and control centre, and the output of simulation main website connects the DCS or the DEH of generating set.
3. employing PMU frequency information according to claim 1 carries out the device of generating set primary frequency regulation, it is characterized in that: described frequency data grasp dispensing device and comprise the mirror image switch and monitor main frame, described mirror image switch connected the PMU device by mirror port, mirror port connects monitors main frame, and the output of monitoring main frame connects the DCS or the DEH of generating set.
4. employing PMU frequency information according to claim 1 carries out the device of generating set primary frequency regulation, it is characterized in that: described frequency data grasp dispensing device and comprise communication processing module and communication interface, the input of described communication processing module connects the output of PMU device, and the output of communication processing module connects the DCS or the DEH of generating set by communication interface.
5. carry out the device of generating set primary frequency regulation according to the described employing of the arbitrary claim of claim 2-4 PMU frequency information, it is characterized in that: use the MODBUS communications protocol between the DCS of described frequency data extracting dispensing device and generating set or the DEH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200943834U CN203104121U (en) | 2013-03-01 | 2013-03-01 | Device for performing primary frequency modulation of generator set by use of PMU frequency information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200943834U CN203104121U (en) | 2013-03-01 | 2013-03-01 | Device for performing primary frequency modulation of generator set by use of PMU frequency information |
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| Publication Number | Publication Date |
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| CN203104121U true CN203104121U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013200943834U Expired - Lifetime CN203104121U (en) | 2013-03-01 | 2013-03-01 | Device for performing primary frequency modulation of generator set by use of PMU frequency information |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138401A (en) * | 2013-03-01 | 2013-06-05 | 河南省电力公司电力科学研究院 | Device and method for carrying out primary frequency modulation on generator unit by applying of power management unit (PMU) frequency information |
| CN108767905A (en) * | 2018-05-31 | 2018-11-06 | 西安热工研究院有限公司 | Primary frequency modulation Commissioning Analysis method is carried out based on synchronized phase measurement device data |
-
2013
- 2013-03-01 CN CN2013200943834U patent/CN203104121U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138401A (en) * | 2013-03-01 | 2013-06-05 | 河南省电力公司电力科学研究院 | Device and method for carrying out primary frequency modulation on generator unit by applying of power management unit (PMU) frequency information |
| CN108767905A (en) * | 2018-05-31 | 2018-11-06 | 西安热工研究院有限公司 | Primary frequency modulation Commissioning Analysis method is carried out based on synchronized phase measurement device data |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450008 Songshan South Road, Henan, No. 85, No. Patentee after: STATE GRID HENAN ELECTRIC POWER CORPORATION ELECTRIC POWER SCIENCE Research Institute Patentee after: State Grid Corporation of China Address before: 450008 Songshan South Road, Henan, No. 85, No. Patentee before: Henan Electric Power Corporation Electric Power Science Research Institute Patentee before: State Grid Corporation of China |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20151009 Address after: 450008 Songshan South Road, Henan, No. 85, No. Patentee after: STATE GRID HENAN ELECTRIC POWER CORPORATION ELECTRIC POWER SCIENCE Research Institute Patentee after: State Grid Corporation of China Patentee after: HENAN ENPAI HIGH-TECH GROUP Co.,Ltd. Address before: 450008 Songshan South Road, Henan, No. 85, No. Patentee before: STATE GRID HENAN ELECTRIC POWER CORPORATION ELECTRIC POWER SCIENCE Research Institute Patentee before: State Grid Corporation of China |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |