CN202837421U - DSP and CPLD-based wind-power electrical-network electric-energy parameter detection apparatus - Google Patents
DSP and CPLD-based wind-power electrical-network electric-energy parameter detection apparatus Download PDFInfo
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- CN202837421U CN202837421U CN 201220402376 CN201220402376U CN202837421U CN 202837421 U CN202837421 U CN 202837421U CN 201220402376 CN201220402376 CN 201220402376 CN 201220402376 U CN201220402376 U CN 201220402376U CN 202837421 U CN202837421 U CN 202837421U
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Abstract
The utility model provides a DSP and CPLD-based wind-power electrical-network electric-energy parameter detection apparatus, comprising a voltage transformer module and a current transformer module connected with an anti-aliasing filter. The anti-aliasing filter is connected with a phase-locking frequency multiplication module and an A/D converter. The A/D converter is connected with a FIFO module. The FIFO module is connected with a DSP. The DSP is connected with a FLASH memory and a double-interface RAM. A CPLD is connected with the double-interface RAM, a display module, a keyboard module and a GPRS module. The wind-power electrical-network electric-energy parameter detection apparatus provided by the utility model can detect an electric-energy quality condition of each point of the electrical network in real time and transmit collected data to a host computer by the GPRS wireless network. If faults appear in the electrical network, work personnel carry out determination and fault clearance to electrical-network fault points based on the uploading data.
Description
Technical field
The utility model relates to electronic technology field, and a kind of wind-powered electricity generation electrical network electrical energy parameter pick-up unit based on DSP and CPLD is provided.
Background technology
Along with energy crisis becomes increasingly conspicuous, the development and use new forms of energy have become the focus of whole world research, and wind-power electricity generation more and more receives people's concern as a kind of important regenerative resource form.Along with the progress of manufacturing technology, modern control technology, Power Electronic Technique and computer technology, wind generating technology develops rapidly with the speed above 30%, and wind energy becomes a kind of cleaning, regenerative resource with fastest developing speed in the world wide.But, the operation characteristic of the uncertainty of wind-resources and wind-powered electricity generation unit itself fluctuates the output power of wind-powered electricity generation unit, may affect the quality of power supply of electrical network, such as voltage deviation, voltage fluctuation and flickering, harmonic wave etc., can the security and stability of light current electrical network be worked the mischief when serious, therefore, wind power plant can not be ignored the impact of access electrical network.The quality of power supply to the wind-powered electricity generation incoming end is carried out for a long time, continuously monitoring, thereby grasps the situation of the wind energy turbine set quality of power supply comprehensively, provides according to very important meaning is arranged for further studying and improving the wind-powered electricity generation quality of power supply.
And wind-powered electricity generation electrical network output power quality problem mainly contains: voltage waveform distortion, voltage fluctuation, flickering, three-phase imbalance etc., they cause the generation of many harmfulness accidents the most at last.For example, higher hamonic wave and three-phase imbalance problem can cause that the rotor of medium and small generator suffers damage, and relay protection and aut.eq. are produced severe jamming, cause the generation of its maloperation event.Higher hamonic wave more may produce the harmonic wave amplification by produce resonance in electrical network, further other power equipments in the electrical network is worked the mischief.In China, a lot of harmfulness accidents that produce owing to the deterioration of electrical network quality of power supply situation have occured.For example, certain electrical network 220KV circuit causes the large-area power outage in this area once because the mains by harmonics problem trips.And for example, certain power plant because of harmonic wave, the problems such as three-phase imbalance and flickering cause the overheated impaired accident of parts setting-in face to the 10MW turbo-generator rotor of electric railway and electric arc furnaces power supply.In order to solve these ubiquitous accidents that causes because of power quality problem, must be paid attention to and standard the quality of power supply, formulate relevant rules and regulations, give strict monitoring and implement.Improve the quality of power supply of electrical network, top priority is exactly various kinds of equipment and the instrument that Devoting Major Efforts To Developing can be monitored the electrical network quality of power supply.
Summary of the invention
The purpose of this utility model is to provide a kind of a kind of wind-powered electricity generation electrical network electrical energy parameter pick-up unit based on DSP and CPLD that power grid quality is detected.
The utility model is for achieving the above object by the following technical solutions:
A kind of wind-powered electricity generation electrical network electrical energy parameter pick-up unit based on DSP and CPLD is characterized in that comprising:
Voltage transformer (VT) module: finish the forceful electric power signal to the conversion of weak electric signal;
Current transformer module: finish the forceful electric power signal to the conversion of weak electric signal;
Frequency overlapped-resistable filter: elimination high fdrequency component;
Phase locking frequency multiplying module: finish two automatic controls that signal phase is synchronous, and the integral multiple of frequency increases;
A/D converter: simulating signal is converted into digital signal;
Fifo module: the high-speed cache passage between A/D converter and dsp processor;
Dsp processor: digital signal is processed, controlled the operation of whole electric energy quality monitor;
FLASH storer: storage start-up routine, start-up parameter, operating system, file system and hardware drive program and application code;
Dual port RAM: the transmission data buffer of the data that temporary collection is come and dsp processor and CPLD control module;
CPLD Logic control module: for interface and other peripheral circuit control device, carry out address decoding and logic control;
Display module: show job information;
Keysheet module: duty is set;
SD storer: the signal that storage of collected arrives and corresponding result of calculation;
GPRS module: be used for carrying out data communication by GPRS wireless network and control center;
Described voltage transformer (VT) module summation current transformer module becomes line voltage gives A/D converter with current conversion after giving frequency overlapped-resistable filter elimination high fdrequency component after the light current simulating signal, and the phase locking frequency multiplying module triggers A/D converter simultaneously, realize that A/D converter is to the synchronized sampling of voltage and current, A/D converter is to give fifo module after the digital signal to carry out speed buffering with analog signal conversion, fifo module is given dsp processor with the signal of buffering, dsp processor reads the result of conversion, and take quality of power supply performance index as the basis, finish voltage, electric current, the corresponding data operation such as power, CPLD sends order to dsp processor, data and operation result that the dsp processor loopback is measured, the CPLD Logic control module carries out this locality storage or passes to host computer by GPRS according to the program of prior setting again, and realizes local the demonstration by the operation of Keysheet module and the cooperation of display module;
Described voltage transformer (VT) module summation current transformer module is connected with frequency overlapped-resistable filter, frequency overlapped-resistable filter is connected with A/D converter with the phase locking frequency multiplying module, A/D converter is connected with fifo module, fifo module connects and is connected with DSP, DSP is connected with dual port RAM with the FLASH storer, and CPLD is connected display module, Keysheet module GPRS module and is connected with dual port RAM.
Described voltage transformer (VT) module adopts the SPT204V model, and current transformer module adopts the SCT254FK model.
Described A/D converter adopts the ADS7864 chip.
Described dsp processor adopts the TMS320F2812 chip.
Described CPLD Logic control module adopts the XC9572 chip.
Described GPRS module adopts the MC35i model.
Described dual port RAM adopts the Y7C025AV-15AI chip.
The utlity model has following beneficial effect:
The utlity model has the GPRS radio communication function, can learn the real time data of each monitoring point whenever and wherever possible, and can accomplish to be made amendment in any monitoring point at any time to arrange and special detection by remote control technology, time checks the electric energy quality detection device recorded data and carries out careful deep analysis at host computer anywhere, if there is unusual electric power event generation electric energy quality detection device Anywhere to carry out alarm with the fastest speed, and can check out device number and the equipment location that goes wrong on computers by source book, so that the staff carries out fault handling timely, improve the stability of whole electrical network.
Description of drawings
Fig. 1 is system block diagram of the present utility model.
Embodiment
A kind of wind-powered electricity generation electrical network electrical energy parameter pick-up unit based on DSP and CPLD is characterized in that comprising:
Voltage transformer (VT) module: finish the forceful electric power signal to the conversion of weak electric signal;
Current transformer module: finish the forceful electric power signal to the conversion of weak electric signal;
Frequency overlapped-resistable filter: elimination high fdrequency component;
Phase locking frequency multiplying module: finish two automatic controls that signal phase is synchronous, and the integral multiple of frequency increases;
A/D converter: simulating signal is converted into digital signal;
Fifo module: the high-speed cache passage between A/D converter and dsp processor;
Dsp processor: digital signal is processed, controlled the operation of whole electric energy quality monitor;
FLASH storer: storage start-up routine, start-up parameter, operating system, file system and hardware drive program and application code;
Dual port RAM: the data that operation system program, file system and temporary collection are come and the transmission data buffer of dsp processor and CPLD control module;
CPLD Logic control module: for interface and other peripheral circuit control device, carry out address decoding and logic control;
Display module: show job information;
Keysheet module: duty is set;
SD storer: the signal that storage of collected arrives and corresponding result of calculation;
GPRS module: be used for carrying out data communication by GPRS wireless network and control center;
Described voltage transformer (VT) module summation current transformer module becomes line voltage gives A/D converter with current conversion after giving frequency overlapped-resistable filter elimination high fdrequency component after the light current simulating signal, and the phase locking frequency multiplying module triggers A/D converter simultaneously, realize that A/D converter is to the synchronized sampling of voltage and current, A/D converter is to give fifo module after the digital signal to carry out speed buffering with analog signal conversion, fifo module is given dsp processor with the signal of buffering, dsp processor reads the result of conversion, and take quality of power supply performance index as the basis, finish voltage, electric current, the corresponding data operation such as power, CPLD sends order to dsp processor, data and operation result that the dsp processor loopback is measured, the CPLD Logic control module carries out this locality storage or passes to host computer by GPRS according to the program of prior setting again, and realizes local the demonstration by the operation of Keysheet module and the cooperation of display module;
Described voltage transformer (VT) module summation current transformer module is connected with frequency overlapped-resistable filter, frequency overlapped-resistable filter is connected with A/D converter with the phase locking frequency multiplying module, A/D converter is connected with fifo module, fifo module connects and is connected with DSP, DSP is connected with dual port RAM with the FLASH storer, and CPLD is connected display module, Keysheet module GPRS module and is connected with dual port RAM.
Described voltage transformer (VT) module adopts the SPT204V model, and current transformer module adopts the SCT254FK model.
Described A/D converter adopts the ADS7864 chip.
Described dsp processor adopts the TMS320F2812 chip.
Described CPLD Logic control module adopts the XC9572 chip.
Described GPRS module adopts the MC35i model.
Described dual port RAM adopts the Y7C025AV-15AI chip.
The utlity model has the GPRS radio communication function, can learn the real time data of each monitoring point whenever and wherever possible, and can accomplish to be made amendment in any monitoring point at any time to arrange and special detection by remote control technology, time checks the electric energy quality detection device recorded data and carries out careful deep analysis at host computer anywhere, if there is unusual electric power event generation electric energy quality detection device Anywhere to carry out alarm with the fastest speed, and can check out device number and the equipment location that goes wrong on computers by source book, so that the staff carries out fault handling timely, improve the stability of whole electrical network.
Claims (7)
1. wind-powered electricity generation electrical network electrical energy parameter pick-up unit based on DSP and CPLD is characterized in that comprising:
Voltage transformer (VT) module: finish the forceful electric power signal to the conversion of weak electric signal;
Current transformer module: finish the forceful electric power signal to the conversion of weak electric signal;
Frequency overlapped-resistable filter: elimination high fdrequency component;
Phase locking frequency multiplying module: finish two automatic controls that signal phase is synchronous, and the integral multiple of frequency increases;
A/D converter: simulating signal is converted into digital signal;
Fifo module: the high-speed cache passage between A/D converter and dsp processor;
Dsp processor: digital signal is processed, controlled the operation of whole electric energy quality monitor;
The FLASH storer;
Dual port RAM: the transmission data buffer of the data that temporary collection is come and dsp processor and CPLD control module;
CPLD Logic control module: for interface and other peripheral circuit control device, carry out address decoding and logic control;
Display module: show job information;
Keysheet module: duty is set;
SD storer: the signal that storage of collected arrives and corresponding result of calculation;
GPRS module: be used for carrying out data communication by GPRS wireless network and control center;
Described voltage transformer (VT) module summation current transformer module becomes line voltage gives A/D converter with current conversion after giving frequency overlapped-resistable filter elimination high fdrequency component after the light current simulating signal, and the phase locking frequency multiplying module triggers A/D converter simultaneously, realize that A/D converter is to the synchronized sampling of voltage and current, A/D converter is to give fifo module after the digital signal to carry out speed buffering with analog signal conversion, fifo module is given dsp processor with the signal of buffering, dsp processor reads the result of conversion, and take quality of power supply performance index as the basis, finish voltage, electric current, the corresponding data operation of power, CPLD sends order to dsp processor, the result that the dsp processor loopback is measured, the CPLD Logic control module carries out this locality storage or passes to host computer by GPRS, and realizes local the demonstration by the operation of Keysheet module and the cooperation of display module;
Described voltage transformer (VT) module summation current transformer module is connected with frequency overlapped-resistable filter, frequency overlapped-resistable filter is connected with A/D converter with the phase locking frequency multiplying module, A/D converter is connected with fifo module, fifo module connects and is connected with DSP, DSP is connected with dual port RAM with the FLASH storer, and CPLD is connected display module, Keysheet module GPRS module and is connected with dual port RAM.
2. a kind of wind-powered electricity generation electrical network electrical energy parameter pick-up unit based on DSP and CPLD according to claim 1 is characterized in that: described voltage transformer (VT) module employing SPT204V model, current transformer module employing SCT254FK model.
3. a kind of wind-powered electricity generation electrical network electrical energy parameter pick-up unit based on DSP and CPLD according to claim 1 is characterized in that: described A/D converter employing chip ADS7864.
4. a kind of wind-powered electricity generation electrical network electrical energy parameter pick-up unit based on DSP and CPLD according to claim 1 is characterized in that: described dsp processor employing TMS320F2812 chip.
5. a kind of wind-powered electricity generation electrical network electrical energy parameter pick-up unit based on DSP and CPLD according to claim 1 is characterized in that: described CPLD Logic control module employing XC9572 chip.
6. a kind of wind-powered electricity generation electrical network electrical energy parameter pick-up unit based on DSP and CPLD according to claim 1 is characterized in that: described GPRS module employing MC35i model.
7. a kind of wind-powered electricity generation electrical network electrical energy parameter pick-up unit based on DSP and CPLD according to claim 1 is characterized in that: described dual port RAM employing Y7C025AV-15AI chip.
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| CN 201220402376 CN202837421U (en) | 2012-08-15 | 2012-08-15 | DSP and CPLD-based wind-power electrical-network electric-energy parameter detection apparatus |
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| CN 201220402376 CN202837421U (en) | 2012-08-15 | 2012-08-15 | DSP and CPLD-based wind-power electrical-network electric-energy parameter detection apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198872A (en) * | 2014-09-29 | 2014-12-10 | 徐雪松 | On-line type power quality monitoring device and method |
| CN105116269A (en) * | 2015-10-16 | 2015-12-02 | 苏州华源电气有限公司 | Power quality detection and optimization structure for high-low-voltage power distribution cabinet |
| CN107085157A (en) * | 2017-06-07 | 2017-08-22 | 国网山西省电力公司电力科学研究院 | Wind power plant power quality data acquisition system and real-time comparison method |
| CN108387801A (en) * | 2018-03-28 | 2018-08-10 | 华电电力科学研究院有限公司 | A kind of wind power station electric energy quality test device and test method |
| CN112417361A (en) * | 2020-10-29 | 2021-02-26 | 国网内蒙古东部电力有限公司经济技术研究院 | Integrative show processing apparatus of big data acquisition |
-
2012
- 2012-08-15 CN CN 201220402376 patent/CN202837421U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198872A (en) * | 2014-09-29 | 2014-12-10 | 徐雪松 | On-line type power quality monitoring device and method |
| CN105116269A (en) * | 2015-10-16 | 2015-12-02 | 苏州华源电气有限公司 | Power quality detection and optimization structure for high-low-voltage power distribution cabinet |
| CN107085157A (en) * | 2017-06-07 | 2017-08-22 | 国网山西省电力公司电力科学研究院 | Wind power plant power quality data acquisition system and real-time comparison method |
| CN108387801A (en) * | 2018-03-28 | 2018-08-10 | 华电电力科学研究院有限公司 | A kind of wind power station electric energy quality test device and test method |
| CN108387801B (en) * | 2018-03-28 | 2024-05-17 | 华电电力科学研究院有限公司 | Wind power station electric energy quality testing device and testing method |
| CN112417361A (en) * | 2020-10-29 | 2021-02-26 | 国网内蒙古东部电力有限公司经济技术研究院 | Integrative show processing apparatus of big data acquisition |
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Granted publication date: 20130327 Termination date: 20130815 |