CN103001233A - Wireless remote monitoring system and wireless remote monitoring method for reactive compensation device - Google Patents
Wireless remote monitoring system and wireless remote monitoring method for reactive compensation device Download PDFInfo
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- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
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- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
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- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
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- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
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Abstract
The invention discloses a wireless remote monitoring system and a wireless remote monitoring method for a reactive compensation device. The system comprises a CAN (controller area network) bus communication circuit and a wireless transceiving module which form a monitoring node of the wireless remote monitoring system. The CAN bus communication circuit comprises a microcontroller and a CAN bus transceiver. The microcontroller acquires data on reactive compensation device nodes and transmits the acquired data to the CAN bus transceiver through an eCAN controller, the wireless transceiving module transmits the data to a sever through GPRS (general packet radio service) and Internet, a database is built at the server for storing and managing data of different nodes, and the sever transmits a actuating signal to the reactive compensation device along the same path through power grid power quality information acquired by the server. The wireless remote monitoring system and the wireless remote monitoring method guarantees data acquisition, data processing, data calculation and data safety, satisfies local monitoring of the reactive compensation device, and realizes remote monitoring.
Description
Technical field
The present invention relates to a kind of electric power monitoring system and method thereof, especially relate to a kind of wireless remote control system and method thereof that is applicable to automatic reactive compensator.
Background technology
Reactive power compensator is in one's power power industry capital equipment of power transformation, is mainly used in compensates electric System Reactive Power power, improves the power prestige of system, improves the power supply quality, reduces the reactive loss of circuit, improves the ability that electrical network is carried electricity.Mainly contain SVC(thuristor throw-in and throw-off reactor), the SVG(static reacance generator), the TSC(thyristor series capacitor), FC.Be mainly used in iron and steel, chemical industry, smelting, electrical network industry reactive power compensation and harmonic wave control.Along with the continuous increase of high-power non-linear, impact load, the application of high-pressure reactive compensation device is also more and more, and particularly in the important events such as metallurgical, mining and electric railway, reactive power compensator is all being played the part of important role.In the design and running of these large capacity, practical power factor compensator, design and the realization of supervisory control system are very important, and it plays a part operation information administrative center.
In the prior art, have following five pieces of documents relevant with the present invention:
(2) prior art 2 is China Electric Power Research Institute, in application on 09 13rd, 2005, and open on 03 29th, 2006, publication number is the Chinese invention patent application " a kind of stationary reactive compensation monitoring platform of layered distribution type structure " of CN1753269A.It specifically discloses a kind of layered distribution type structure Static Var Compensator (SVC; Static Var Compensator; static passive compensation device) monitor supervision platform; this SVC monitor supervision platform has comprised bottom; three levels in middle level and upper strata; communication manager wherein; SVC branch road Microcomputer Protection unit; the auxiliary protection unit; the water-cooling system monitoring; valve base electronic device (VBE) is in the bottom of monitor supervision platform; they pass through RS232; the RS485 serial line interface is connected with the monitor supervision platform middle level and realizes bottom distribution communication with serial mode; the monitor supervision platform middle level comprises on the spot control; the control of standing; regulon; main monitoring unit; they interconnect by serial communication bus CAN and realize the middle level communication in point-to-point mode; the upper strata of monitor supervision platform is higher level's automated system, and it carries out communication according to the middle level of CDT communication protocol and monitor supervision platform.Adopt this layered distribution type structure system architecture clear, each layer be isolation mutually, can greatly simplify system, increases system reliability and extensibility.The layered distribution type monitor mode that prior art 2 adopts only provide a kind of on the spot monitor mode, and the SVC monitor supervision platform has comprised bottom, three levels in middle level and upper strata.Bottom adopts RS232, the communication of RS485 serial mode, and the point-to-point mode communication of CAN bus is adopted in the middle level of monitor supervision platform, and the upper strata is according to CDT communication protocol and middle level communication.Although adopt layered distribution type communication system framework clear, each layer be isolation mutually, has increased transmission delay, the error rate of communication, the interface compatibility problem.
(3) prior art 3 is China Electric Power Research Institute, in application on 09 13rd, 2005, and in announcement on 03 29th, 2006, publication No. was the Chinese invention patent application " software configuration of stationary reactive compensator monitoring system and method for supervising thereof " of CN1753270A.It specifically discloses software configuration and the method for supervising thereof of the supervisory control system host computer of a kind of Static Var Compensator (SVC).The monitoring program structure is comprised of core and the outer housing parts of core, and the core comprises scheduling, core data processing and telecommunication three parts; Separate between each program of housing parts, avoided a part of code error of program to cause overall collapse.In whole supervisory control system the Work in Place station receive non-standard stipulations water system data, CDT stipulations communication processor data and automatically be converted into the data of CAN fieldbus, the backstage host computer is forwarded to distant place machine with the CAN bus data that receives by Modem.The present invention has realized the configuration of SVC host computer monitoring software, makes it can be for the SVC system engineering, configures quickly and easily the host computer monitoring software that can satisfy different SVC system greatest differences.3 of prior aries provide the structure of SVC host computer monitoring software, mainly are the designs of man-machine interface, and application is fully different.And this device mainly is the design of upper computer software, move this host computer, all running statuses that can show SVC, the variation tendency of the record of field accident and analysis and system loading are carried out the remote operation that this software configuration of function such as historical record is printed, in real time demonstration and method for supervising can be realized field apparatus.But remote operation is just carried out communication with the backstage.Transmission range is near, and by the easy packet loss of Modem the transmission of data.
(4) prior art 4 is that the bright safe Electric Applicance Co., Ltd in Hangzhou applied on 06 22nd, 2011, and announces on 02 22nd, 2012, and publication No. is the Chinese utility model patent " remote monitoring system for reactive power compensator " of CN202150738U.This utility model patent provides on-site terminal to comprise several intelligent power capacitors and several power transformer detecting terminals, the power transformer detecting terminal connects at least one intelligent power capacitor, and distribution transformer monitoring terminal is by communication channel and master station communication.Mainly finish metering, electric energy quality monitoring, distribution transforming monitoring of working condition, four functions of reactive power compensation in the one integral monitoring.
(5) prior art 5 is that Liaoning electric energy Development stock Co., Ltd applied on 06 15th, 2011, and announces on November 30th, 2011, and publication No. is the Chinese utility model patent " a kind of long-distance monitorng device of reactive power compensator " of CN202059228U.This patent provides the distribution substation remote monitoring, mainly adopts infrared viewing device to communicate.Infrared viewing device is arranged in the casing of reactive power compensator, and infrared viewing device links to each other with the display main frame by transmission cable, realizes communication.The utility model patent adopts 3 infrared viewing devices, two infrared viewing devices are aimed at respectively a group capacitor and two group capacitors of on-the-spot operation, the another one infrared viewing device is aimed at reactor, current transformer and capacitance and reactance modulation switch, and present the picture of the capacitor group of operation by the master-control room display, be convenient to the ruuning situation that the operation personnel in time understand and grasp the capacitor group.
Supervisory control system and usually adopt the text language programming development for certain concrete application in the past, user interface is not attractive in appearance, the construction cycle is long, transplant and change difficult.In addition, existing supervisory control system function is relatively simple, and what generally adopt all is to monitor on the spot, and man-machine interface is arranged on the equipment, and the operation information of equipment all is presented on the man-machine interface, and is very inconvenient for places such as remote electric substation, colliery, metallurgy.
Summary of the invention
The purpose of this invention is to provide a kind of reactive power compensator wireless remote control system and method thereof, this system and method thereof can satisfy on the spot monitoring and the demonstration of reactive power compensator, can realize again wireless transmission and the remote operation of status data, and telemonitoring and the control of device, solved data acquisition, processing and calculating, and the safety in the transmission course and stability problem.
In order to realize the foregoing invention purpose, the present invention specifically provides a kind of technic relization scheme of reactive power compensator wireless remote control system, a kind of reactive power compensator wireless remote control system, comprise: CAN bus communication circuit and radio receiving transmitting module, CAN bus communication circuit and radio receiving transmitting module form a monitor node of wireless remote control system, CAN bus communication circuit comprises microcontroller and CAN bus transceiver, microcontroller comprises the eCAN controller, microcontroller gathers the information data on the reactive power compensator monitor node, by the eCAN controller image data is sent to the CAN bus transceiver, be sent to server by radio receiving transmitting module by GPRS and Internet network again, at the server end building database, the data of the different nodes of storage administration, and obtain electrical network quality of power supply information by database.The control information that is produced by server is sent to radio receiving transmitting module through GPRS and Internet network, passes through successively CAN bus transceiver and microcontroller again, sends the action executing order by microcontroller to the corresponding monitor node of reactive power compensator.
Further improvement as a kind of reactive power compensator wireless remote control system of the present invention technical scheme, wireless remote control system also comprises data acquisition process unit and action execution unit, and data acquisition process unit and action execution unit all are connected between microcontroller and the reactive power compensator.The data acquisition process unit comprises A/D converting unit and signal isolation and converting unit, digital quantity on the reactive power compensator monitor node is sent to microcontroller by the data acquisition process unit, analog quantity on the reactive power compensator monitor node is sent to microcontroller by signal isolation and converting unit and A/D converting unit successively, and the data acquisition process unit is sent to microcontroller with the information data on the reactive power compensator monitor node; Action execution unit is responsible for carrying out the control action of the reactive power compensator monitor node that microcontroller sends.
Further improvement as a kind of reactive power compensator wireless remote control system of the present invention technical scheme, radio receiving transmitting module comprises processor, power supply is processed and battery management module, the GPRS/GSM integration module, the GPRS/GSM Anneta module, the antenna connection detection module, watchdog module and memory module, power supply is processed and battery management module, the GPRS/GSM integration module, the antenna connection detection module, watchdog module all links to each other with processor with memory module, the power supply processing links to each other with outside input power with battery management module, and for processor and GPRS/GSM integration module provide working power, the GPRS/GSM Anneta module links to each other with the GPRS/GSM integration module.
Further improvement as a kind of reactive power compensator wireless remote control system of the present invention technical scheme, radio receiving transmitting module also comprises battery module and ISP download module, battery module all links to each other with processor with the ISP download module, and battery module also links to each other with battery management module.
As the further improvement of a kind of reactive power compensator wireless remote control system of the present invention technical scheme, the GPRS/GSM integration module all links to each other with processor by the UART interface with the ISP download module.The ISP download module links to each other with processor by the SPI interface.
As the further improvement of a kind of reactive power compensator wireless remote control system of the present invention technical scheme, microcontroller adopts the TMS320F2812 dsp processor.
Further improvement as a kind of reactive power compensator wireless remote control system of the present invention technical scheme, processor adopting ARM7 microprocessor, the GPRS/GSM integration module adopts the GPRS module of embedded ICP/IP protocol, storage, the GPRS network that processor is responsible for system's power-up initializing, transformation parameter connects, the buffer memory of user's swap data, and condition managing is in interior task, and the GPRS/GSM integration module is responsible for the processing of ICP/IP protocol.
As the further improvement of a kind of reactive power compensator wireless remote control system of the present invention technical scheme, reactive power compensator is thuristor throw-in and throw-off reactor type static reacance generator.
Further improvement as a kind of reactive power compensator wireless remote control system of the present invention technical scheme, the A/D converting unit adopts the AD7865 conversion chip, the A/D converting unit gathers the data that reactive power compensator comprises electrical network three-phase line voltage and three-phase current, and the voltage and current data that collect are sent to microcontroller calculate the active power that comprises three-phase voltage effective value, three-phase current effective value, three-phase, three phase reactive power, total meritorious, total reactive power, apparent power and power factor and harmonic number are in interior data.
The present invention also specifically provides a kind of technic relization scheme of reactive power compensator wireless remote control system method in addition, and a kind of reactive power compensator wireless remote monitering method may further comprise the steps:
S100: microcontroller gathers the information data on the monitor node of reactive power compensator, and by the eCAN controller image data is sent to the CAN bus transceiver;
S101: will cross GPRS and the Internet network is sent to server from the data communication device of CAN bus transceiver by radio receiving transmitting module;
S102: at the server end building database, the data of the different nodes of storage administration, and obtain electrical network quality of power supply information and report by database, thus grasp the operation conditions of reactive power compensator and whole electrical network;
S103: the control information that is produced by server is sent to radio receiving transmitting module through GPRS and Internet network, passes through successively CAN bus transceiver and microcontroller again, sends the action executing order by microcontroller to the corresponding monitor node of reactive power compensator.
As the further improvement of a kind of reactive power compensator wireless remote monitering of the present invention method and technology scheme, the wireless data transmission flow of radio receiving transmitting module also further may further comprise the steps among the step S101:
S1011: the serial ports of intiating radio transceiver module, SPI interface and wireless remote control system parameter;
S1012: whether the antenna condition that checks wireless sending module has signal;
S1013: the system clock of intiating radio remote monitoring receives the CAN bus data from the CAN bus transceiver;
S1014: initialization GPRS/GSM integration module, carry out communication with server, radio receiving transmitting module enters running status, sends packet.
As the further improvement of a kind of reactive power compensator wireless remote monitering of the present invention method and technology scheme, the A/D converting unit gathers reactive power compensator and comprises electrical network three-phase line voltage U
AB, U
BC, U
CAWith three-phase current I
A, I
B, I
CIn interior data, and the voltage and current data that collect are sent to microcontroller calculate and comprise three-phase voltage effective value U
_ AB, U
_ BC, U
_ CA, three-phase current effective value I
_ A, I
_ B, I
_ C, the active-power P of three-phase
A, P
B, P
C, three phase reactive power Q
A, Q
B, Q
C, total active-power P
_ ABC, total reactive power Q
_ ABC, apparent power S
_ ABC, power-factor cos phi and harmonic number are in interior data.Then these data are shown in the main interface of server monitoring that data are drawn out in the real-time curve interface, simultaneously data communication device is crossed the CAN bus and sent to radio receiving transmitting module, and be sent to server by GPRS and Internet network.
As the further improvement of a kind of reactive power compensator wireless remote monitering of the present invention method and technology scheme, the data of reactive power compensator wireless remote control system comprise 70 bytes altogether.
As the further improvement of a kind of reactive power compensator wireless remote monitering of the present invention method and technology scheme, the CAN agreement of CAN bus communication circuit adopts standard frame ID, and the length in frame ID territory is 11.
As the further improvement of a kind of reactive power compensator wireless remote monitering of the present invention method and technology scheme, the CAN agreement of CAN bus communication circuit adopts the 250K baud rate.
Further improvement as a kind of reactive power compensator wireless remote monitering of the present invention method and technology scheme, the CAN agreement of CAN bus communication circuit adopts successive frame ID to organize to define this 70 bytes, and all data that comprise a byte and check byte etc. in the wireless remote control system serial port protocol are all wrapped in the CAN data.
By implementing the technical scheme of a kind of reactive power compensator wireless remote control system of the invention described above and method thereof, have following technique effect:
(1) the present invention is with the running state information of reactive power compensator, and the quality of power supply information exchange of Access Network is crossed the wireless GPRS network and sent on the server, can realize remote monitoring by access server;
(2) the present invention can be to the running state data of reactive power compensator, and fault data detects in real time, both can realize the on the spot monitoring of reactive power compensator, can realize wireless remote monitering again;
(3) the present invention adopts wireless mode data to be sent to the server in a distant place, can easily by wireless transmission field data be sent to server for places such as remote electric substation, colliery, metallurgy, access server just can be realized the Real Time Monitoring to field data.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the system architecture diagram of the supervisory control system of prior art 1 high-pressure static reactive power compensation device;
Fig. 2 is the system architecture diagram of the stationary reactive compensation monitoring platform of 2 one kinds of layered distribution type structures of prior art;
Fig. 3 is that the software configuration of prior art 3 stationary reactive compensator monitoring systems and the system of method for supervising thereof form structural representation;
Fig. 4 is the system architecture diagram of a kind of embodiment of reactive power compensator wireless remote control system of the present invention;
Fig. 5 is the structure composition frame chart of a kind of embodiment data acquisition process of reactive power compensator wireless remote control system of the present invention unit;
Fig. 6 is the structure composition frame chart of a kind of embodiment wireless sending module of reactive power compensator wireless remote control system of the present invention;
Fig. 7 is the program flow diagram of a kind of embodiment wireless transmission of reactive power compensator wireless remote monitering method of the present invention process;
Fig. 8 is the main circuit structure schematic diagram of a kind of embodiment reactive power compensator of reactive power compensator wireless remote control system of the present invention;
Fig. 9 is the monitor terminal interface schematic diagram of a kind of embodiment of reactive power compensator wireless remote control system of the present invention;
Among the figure: the 1-microcontroller, the 2-CAN bus transceiver, the 3-radio receiving transmitting module, 4-reactive power compensator, 5-data acquisition process unit, the 6-action execution unit, the 7-server, 8-A/D converting unit, the isolation of 9-signal and converting unit, the 10-eCAN controller, the 31-processor, the 32-power supply is processed and battery management module, the 33-GPRS/GSM integration module, the 34-GPRS/GSM Anneta module, 35-antenna connection detection module, 36-watchdog module, 37-battery module, the 38-memory module, the 39-ISP download module.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
To as shown in the accompanying drawing 9, provided the specific embodiment of a kind of reactive power compensator wireless remote control system of the present invention and method thereof such as accompanying drawing 4, the invention will be further described below in conjunction with the drawings and specific embodiments.
The reactive power compensator wireless remote control system that the present invention proposes, it is a control system take DSP as core, by the CAN bus data are sent to wireless sending module, a minimum system node that belongs to supervisory control system, structural design has guaranteed to have the characteristics such as versatility, practicality and extensibility in the situation of stable performance.
The embodiment of a kind of reactive power compensator wireless remote control system as shown in Figure 4, comprise: CAN(Controller Area Network, controller area net) bus communication circuit and radio receiving transmitting module 3, CAN bus communication circuit and radio receiving transmitting module 3 form a monitor node of wireless remote control system, such structural design has guaranteed that in the situation of stable performance, surveillance has the characteristics such as versatility, practicality and extensibility.CAN bus communication circuit comprises microcontroller 1 and CAN bus transceiver 2, microcontroller 1 comprises eCAN controller 10, the information data that microcontroller 1 gathers on reactive power compensator 4 monitor nodes, by eCAN controller 10 image data is sent to CAN bus transceiver 2, be sent to server 7 by radio receiving transmitting module 3 by GPRS and Internet network again, at server 7 end building databases, the data of the different nodes of storage administration, and obtain electrical network quality of power supply information and report by database, thereby grasp the operation conditions of reactive power compensator and whole electrical network.The control information that is produced by server 7 is sent to radio receiving transmitting module 3 through GPRS and Internet network, passes through successively CAN bus transceiver 2 and microcontroller 1 again, sends the action executing order by microcontroller 1 to the corresponding monitor node of reactive power compensator 4.Microcontroller 1 wherein further adopts TMS320F2812 DSP(Digital Signal Processing, digital signal processor) processor.As shown in Figure 8, as a kind of typical execution mode, reactive power compensator 4 among the present invention further is TSC(Thyristor Switched Capacitor, the thuristor throw-in and throw-off reactor)+and SVG(Static Var Generator, static reacance generator) thuristor throw-in and throw-off reactor type static reacance generator.Shown in Figure 4 only is the remote monitoring mode, and monitor mode namely is to carry out local monitor at reactive power compensator on the spot.
The present invention adopts CAN bus communication mode, and the CAN bus adopts serial multi host control communication protocol, and this agreement can be supported distributed real-time control effectively, the fail safe with higher level, and traffic rate reaches as high as 1Mbps.The major advantage of CAN bus is that noise resisting ability is strong, can be operated in reliably the large adverse circumstances of noise.Therefore, the CAN bus has obtained using widely at automation field with to the higher field of reliability requirement.The eCAN controller 10 of TMS320F2812 dsp processor provides the CPU of the complete function with CAN2.0B agreement regulation, the burden of CPU when eCAN controller 10 has minimized communication, and by providing some other characteristic to strengthen the standard feature of CAN.
The CAN bus communication main circuit of system will be comprised of microcontroller DSP and CAN bus transceiver.Its overall system block diagram is realized the collection of analog signals, data processing and control actuator, the data transmission of CAN bus and the operation of response near-end or far-end of DSP as shown in Figure 4.Use the high-speed dsp processor and analyze data, obtain multiple power quality parameter, the data communication device that uses wireless GPRS data communication module that Measurement and analysis is obtained is crossed the wireless GPRS network and is sent to server, at the server end building database, come the data of the different nodes of storage administration, can obtain than more comprehensive electrical network quality of power supply report by database, thus the operation conditions of grasp equipment and whole electrical network.
Wherein, the data of reactive power compensator wireless remote control system comprise 70 bytes (comprising a byte and check byte) altogether, and data communication protocol is as shown in table 1 below.According to the characteristics of actual conditions and CAN data frame structure, the reactive power compensator wireless remote control system adopts following CAN agreement:
(1) adopting standard frame ID, also is that frame ID length of field is 11;
(2) the CAN baud rate adopts 250K;
(3) adopt successive frame ID to organize to define these 70 bytes (also being about to comprise that all data such as a byte and check byte all wrap in the CAN data in the wireless remote control system serial port protocol).
| The CAN mailbox | Frame ID | The definition of | Explanation | |
| Mailbox | ||||
| 8 | | Data | 1 ~ |
|
| Mailbox | ||||
| 7 | 0X284 | Data 9 ~ data 16 | Data 9 are positioned at | |
| Mailbox | ||||
| 6 | 0X384 | Data 17 ~ data 24 | Data 17 are positioned at | |
| Mailbox | ||||
| 5 | 0X484 | Data 25 ~ |
Data 25 are positioned at low byte | |
| Mailbox 4 | | Data | 33 ~ data 40 | |
| Mailbox | ||||
| 3 | 0X285 | Data 41 ~ data 48 | Data 41 are positioned at | |
| Mailbox | ||||
| 2 | 0X385 | Data 49 ~ data 56 | Data 49 are positioned at | |
| Mailbox | ||||
| 1 | 0X485 | Data 57 ~ data 64 | Data 57 are positioned at | |
| Mailbox | ||||
| 0 | 0X186 | Data 65 ~ data 72 | Data 65 are positioned at low byte, data 67,68, and 69,70,71,72 fill out 0 |
Table 1 data communication protocol
Wireless remote control system as shown in Figure 5 also further comprises data acquisition process unit 5 and action execution unit 6, and data acquisition process unit 5 and action execution unit 6 all are connected between microcontroller 1 and the reactive power compensator 4.Data acquisition process unit 5 comprises A/D converting unit 8 and signal isolation and converting unit 9, digital quantity on reactive power compensator 4 monitor nodes is sent to microcontroller 1 by data acquisition process unit 5, analog quantity on reactive power compensator 4 monitor nodes is sent to microcontroller 1 by signal isolation and converting unit 9 and A/D converting unit 8 successively, and data acquisition process unit 5 is sent to microcontroller 1 with the information data on reactive power compensator 4 monitor nodes.The control action of reactive power compensator 4 monitor nodes that action execution unit 6 responsible execution microcontrollers 1 send.
Radio receiving transmitting module 3 as shown in Figure 6 further comprises processor 31, power supply processes and battery management module 32, GPRS/GSM integration module 33, GPRS/GSM Anneta module 34, antenna connection detection module 35, watchdog module 36 and memory module 38.In radio receiving transmitting module 3, be integrated with serial ports, SPI(Serial Peripheral Interface, Serial Peripheral Interface (SPI)) etc. interface.Power supply is processed and is all linked to each other with processor 31 with battery management module 32, GPRS/GSM integration module 33, antenna connection detection module 35, watchdog module 36 and memory module 38, power supply is processed and is linked to each other with outside input power with battery management module 32, and for processor 31 and GPRS/GSM integration module 33 provide working power, GPRS/GSM Anneta module 34 links to each other with GPRS/GSM integration module 33.Radio receiving transmitting module 3 also further comprises battery module 37 and ISP(In System Programming, in-system programming) download module 39, battery module 37 all links to each other with processor 31 with ISP download module 39, and battery module 37 also links to each other with battery management module 32.GPRS/GSM integration module 33 all links to each other with processor 31 by the UART interface with ISP download module 39; ISP download module 39 links to each other with processor 31 by the SPI interface.Processor 31 adopts the ARM7 microprocessor, GPRS/GSM integration module 33 adopts the GPRS module of embedded ICP/IP protocol, processor 31 is responsible for system's power-up initializing, the storage of transformation parameter, GPRS network connects, the buffer memory of user's swap data, and condition managing is in interior task, and GPRS/GSM integration module 33 is responsible for the processing of ICP/IP protocol.
GPRS(General Packet Radio Servic, GPRS) be a cover Wireless Data Transmission mode of utilizing " packet switch " (Packet Switched) concept to develop.Adopt the frequency range identical with GSM, frequency bandwidth, burst structure, wireless-modulated standard, frequency hopping rule and identical tdma frame structure, this new Packet Data Channel is extremely similar to current Circuit-switched voice service channel.GPRS network is at existing GSM(Global System of Mobile communication, what global system for mobile communications) increase GGSN and SGSN realized in the network, so that the user can transmit and receive data under end-to-end packet mode, do not need to use any Internet resources under the circuit switched mode, thereby can independently run.
Radio receiving transmitting module in the accompanying drawing 6 adopts based on the GPRS/GSM integration module 33 of the processor 31 of ARM7 microprocessor and embedded ICP/IP protocol and realizes.Wherein, processor 31 does not carry out ICP/IP protocol to be processed, responsible system power-up initializing only, and the storage of transformation parameter, GPRS network connects, buffer memory and the relevant condition managing of user's swap data.And the TCP/IP of actual user data flow packing is all finished by GPRS/GSM integration module 33, has given full play to the managerial ability of processor 31 and the protocol processes ability of GPRS/GSM integration module 33, respectively gets the chief.Processor 31 adopts Philip ARM7 chip LPC2119, and LPC2119 is based on 16/32 ARM7TDMI-STM CPU that supports real-time simulation and tracking, and the high speed Flash memory that embeds with 128/256K byte (KB).The memory interface of 128 bit widths and unique accelerating structure can move 32 codes under maximum clock speed.The circuit of GPRS/GSM integration module 33 is realized following functions: transfer of data (GPRS), network state indication, short message service, call service, phone book service and character management.Wherein, GPRS/GSM integration module 33 adopts GM862 as acp chip, and the inside of GM862 is integrated TCP/IP stack by carrying out network development, and need not to carry out transplanting and the conversion of agreement.Set up Socket by the AT order and be connected with server, carry out the transmission of data.GM862 adopts the standard serial mouth to communicate, and AT Command Set is controlled, and drives the various functions that (based on the AT command program of serial ports) just can realize this module as long as realize serial port drive and GPRS.GPRS network is to increase GGSN(Gateway GPRS Support Node in existing GSM network, Gateway GPRS Support Node) and SGSN(Service GPRS Support Node, Serving GPRS Support Node) realizes, so that the user can transmit and receive data under end-to-end packet mode, do not need to use any Internet resources under the circuit switched mode, thereby can independently run.
The GSM/GPS module interface circuit is realized following functions:
(1) transfer of data (GPRS);
(2) network state indication;
(3) short message service;
(4) call service;
(5) phone book service;
(6) character management.
The inner integrated TCP/IP stack of GM862 by carrying out network development, and need not to carry out transplanting and the conversion of agreement.Set up Socket by the AT order and be connected with server, carry out the transmission of data.GM862 adopts the standard serial mouth to communicate, and AT Command Set is controlled, as long as we realize, and serial port drive and GPRS drive the various functions that (based on the AT command program of serial ports) just can realize this module.
The specific design scheme of the GPRS wireless transport module that the present invention adopts is to adopt the GPRS module of the embedded ICP/IP protocol of microprocessor ARM7+ to realize, as shown in Figure 6.The microprocessor does not here carry out ICP/IP protocol to be processed, responsible system power-up initializing only, and the storage of transformation parameter, GPRS network connects, buffer memory and the relevant condition managing of user's swap data.And the TCP/IP of actual user data flow packing is all finished by module, has given full play to the protocol processes ability of microprocessor management ability and module, respectively gets the chief.
A/D converting unit 8 further adopts the AD7865 conversion chip, and A/D converting unit 8 gathers reactive power compensator 4 and comprises electrical network three-phase line voltage U
AB, U
BC, U
CAWith three-phase current I
A, I
B, I
CIn interior data, and the voltage and current data that collect are sent to microcontroller 1 calculate and comprise three-phase voltage effective value U
_ AB, U
_ BC, U
_ CA, three-phase current effective value I
_ A, I
_ B, I
_ C, the active-power P of three-phase
A, P
B, P
C, three phase reactive power Q
A, Q
B, Q
C, total active-power P
_ ABC, total reactive power Q
_ ABC, apparent power S
_ ABC, power-factor cos phi and harmonic number are in interior data.Then these data are shown that data are drawn out in the main interface of server 7 monitoring in the real-time curve interface, simultaneously data communication device is crossed the CAN bus and sent to radio receiving transmitting module 3, and be sent to server 7 by GPRS and Internet network.
As shown in Figure 7, the sending module program circuit comprises: the initialization serial ports, the parameter of SPI interface and system, check that the wireless sending module antenna condition has signal, the initialization system clock receives the CAN bus data, initialization GM862 module, with the ground-based server communication, wireless base station apparatus enters running status, sends packet.
As shown in Figure 9, the running state information of on-the-spot reactive-load compensation equipment sends on the remote server by GPRS network, and by Internet network access server, real-time watch device voltage, electric current, active power, reactive power, apparent power, power factor and equipment running status information.
A kind of embodiment of reactive power compensator wireless remote monitering method may further comprise the steps:
S100: microcontroller 1 gathers the information data on the monitor node of reactive power compensator 4, and by eCAN controller 10 image data is sent to CAN bus transceiver 2;
S101: will cross GPRS and the Internet network is sent to server 7 from the data communication device of CAN bus transceiver 2 by radio receiving transmitting module 3;
S102: at server 7 end building databases, the data of the different nodes of storage administration, and obtain electrical network quality of power supply information and report by database, thus grasp the operation conditions of reactive power compensator and whole electrical network;
S103: the control information that is produced by server 7 is sent to radio receiving transmitting module 3 through GPRS and Internet network, pass through successively again CAN bus transceiver 2 and microcontroller 1, send the action executing order by microcontroller 1 to the corresponding monitor node of reactive power compensator 4.
The wireless data transmission flow of radio receiving transmitting module 3 also further may further comprise the steps among the step S101:
S1011: the serial ports of intiating radio transceiver module 3, SPI interface and wireless remote control system parameter;
S1012: whether the antenna condition that checks wireless sending module 3 has signal;
S1013: the system clock of intiating radio remote monitoring receives the CAN bus data from CAN bus transceiver 2;
S1014: initialization GPRS/GSM integration module 33, carry out communication with server 7, radio receiving transmitting module 3 enters running status, sends packet.
A/D converting unit 8 gathers reactive power compensator 4 and comprises electrical network three-phase line voltage U
AB, U
BC, U
CAWith three-phase current I
A, I
B, I
CIn interior data, and the voltage and current data that collect are sent to microcontroller 1 calculate and comprise three-phase voltage effective value U
_ AB, U
_ BC, U
_ CA, three-phase current effective value I
_ A, I
_ B, I
_ C, the active-power P of three-phase
A, P
B, P
C, three phase reactive power Q
A, Q
B, Q
C, total active-power P
_ ABC, total reactive power Q
_ ABC, apparent power S
_ ABC, power-factor cos phi and harmonic number are in interior data; Then these data are shown that data are drawn out in the main interface of server 7 monitoring in the real-time curve interface, simultaneously data communication device is crossed the CAN bus and sent to radio receiving transmitting module 3, and be sent to server 7 by GPRS and Internet network.
As a kind of execution mode that is more preferably, the data of reactive power compensator wireless remote control system comprise 70 bytes altogether.The CAN agreement of CAN bus communication circuit further adopts standard frame ID, and the length in frame ID territory is 11.The CAN agreement of CAN bus communication circuit further adopts the 250K baud rate.The CAN agreement of CAN bus communication circuit further adopts successive frame ID to organize to define this 70 bytes, and all data that comprise a byte and check byte in the wireless remote control system serial port protocol are all wrapped in the CAN data.
Data among the present invention can also adopt cable network, for example adopt the Modem dial mode data to be sent to the server 7 in a distant place.Simultaneously, along with the develop rapidly of wireless technology, existing GPRS+GSM network technology is very ripe, also can realize of the present invention field data being sent to the function of server 7, and the Real Time Monitoring realized field data of access server 7.
The present invention is applied to CAN mechanics of communication and wireless transmission technology on the state-detection and Long-distance Control of TSC+SVG device, the on the spot demonstration of implement device information and send on the remote server by wireless network on the basis of existing TSC+SVG device control platform realizes Real Time Monitoring to field data by accessing local and long-range server.Adopt the CAN bus, serial multi host control communication protocol, this agreement are supported distributed real-time control effectively, the fail safe with higher level, and traffic rate is up to 1Mbps.The major advantage of CAN bus is that noise resisting ability is strong, can be operated in reliably the large adverse circumstances of noise.
The monitor mode that existing reactive power compensator adopts mainly is to monitor on the spot, on the main interface that exactly operation information and the electric network information of device is presented at equipment.Native system is with the running state information of reactive power compensator, the quality of power supply information exchange of Access Network is crossed the wireless GPRS network and is sent on the server, running state data and fault data to equipment detect in real time, and can realize remote monitoring by access server, both can realize the on the spot monitoring of reactive power compensator, can realize wireless remote monitering again.Be highly suitable for the application scenarios such as remote electric substation, colliery, metallurgy field data is carried out Real Time Monitoring.The present invention not only can be applied to scene and the remote monitoring of reactive power compensator, can also be applied to scene and the remote monitoring of other electric power or electric energy equipment.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Although the present invention discloses as above with preferred embodiment, yet is not to limit the present invention.Any those of ordinary skill in the art, do not breaking away from the technical solution of the present invention scope situation, all can utilize method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, be equal to replacements, equivalence changes and modify, all still belong in the scope that technical solution of the present invention protects.
Claims (16)
1. reactive power compensator wireless remote control system, it is characterized in that, comprise: CAN bus communication circuit and radio receiving transmitting module (3), described CAN bus communication circuit and radio receiving transmitting module (3) form a monitor node of wireless remote control system, CAN bus communication circuit comprises microcontroller (1) and CAN bus transceiver (2), described microcontroller (1) comprises eCAN controller (10), microcontroller (1) gathers the information data on reactive power compensator (4) monitor node, by eCAN controller (10) image data is sent to CAN bus transceiver (2), be sent to server (7) by radio receiving transmitting module (3) by GPRS and Internet network again, at server (7) end building database, the data of the different nodes of storage administration, and obtain electrical network quality of power supply information by database; The control information that is produced by server (7) is sent to radio receiving transmitting module (3) through GPRS and Internet network, pass through successively again CAN bus transceiver (2) and microcontroller (1), send the action executing order by microcontroller (1) to the corresponding monitor node of reactive power compensator (4).
2. a kind of reactive power compensator wireless remote control system according to claim 1, it is characterized in that: described wireless remote control system also comprises data acquisition process unit (5) and action execution unit (6), and described data acquisition process unit (5) and action execution unit (6) all are connected between microcontroller (1) and the reactive power compensator (4); Data acquisition process unit (5) comprises A/D converting unit (8) and signal isolation and converting unit (9), digital quantity on reactive power compensator (4) monitor node is sent to microcontroller (1) by data acquisition process unit (5), analog quantity on reactive power compensator (4) monitor node is sent to microcontroller (1) by signal isolation and converting unit (9) and A/D converting unit (8) successively, and data acquisition process unit (5) are sent to microcontroller (1) with the information data on reactive power compensator (4) monitor node; The control action of reactive power compensator (4) monitor node that action execution unit (6) responsible execution microcontroller (1) sends.
3. a kind of reactive power compensator wireless remote control system according to claim 1 and 2, it is characterized in that: described radio receiving transmitting module (3) comprises processor (31), power supply is processed and battery management module (32), GPRS/GSM integration module (33), GPRS/GSM Anneta module (34), antenna connection detection module (35), watchdog module (36) and memory module (38), described power supply is processed and battery management module (32), GPRS/GSM integration module (33), antenna connection detection module (35), watchdog module (36) all links to each other with processor (31) with memory module (38), power supply is processed and is linked to each other with outside input power with battery management module (32), and for processor (31) and GPRS/GSM integration module (33) provide working power, described GPRS/GSM Anneta module (34) links to each other with GPRS/GSM integration module (33).
4. a kind of reactive power compensator wireless remote control system according to claim 3, it is characterized in that: described radio receiving transmitting module (3) also comprises battery module (37) and ISP download module (39), described battery module (37) all links to each other with processor (31) with ISP download module (39), and battery module (37) also links to each other with battery management module (32).
5. a kind of reactive power compensator wireless remote control system according to claim 4, it is characterized in that: described GPRS/GSM integration module (33) all links to each other with processor (31) by the UART interface with ISP download module (39); Described ISP download module (39) links to each other with processor (31) by the SPI interface.
6. a kind of reactive power compensator wireless remote control system according to claim 5 is characterized in that: described microcontroller (1) employing TMS320F2812 dsp processor.
7. a kind of reactive power compensator wireless remote control system according to claim 6, it is characterized in that: described processor (31) adopts the ARM7 microprocessor, described GPRS/GSM integration module (33) adopts the GPRS module of embedded ICP/IP protocol, storage, the GPRS network that processor (31) is responsible for system's power-up initializing, transformation parameter connects, the buffer memory of user's swap data, and condition managing is in interior task; GPRS/GSM integration module (33) is responsible for the processing of ICP/IP protocol.
8. according to claim 1, the described a kind of reactive power compensator wireless remote control system of arbitrary claim in 2,4 to 7, it is characterized in that: described reactive power compensator (4) is thuristor throw-in and throw-off reactor type static reacance generator.
9. a kind of reactive power compensator wireless remote control system according to claim 8, it is characterized in that: described A/D converting unit (8) adopts the AD7865 conversion chip, A/D converting unit (8) gathers the data that reactive power compensator (4) comprises electrical network three-phase line voltage and three-phase current, and the voltage and current data that collect are sent to microcontroller (1) calculate and comprise the three-phase voltage effective value, the three-phase current effective value, the active power of three-phase, three phase reactive power, total active power, total reactive power, apparent power, power factor and harmonic number are in interior data.
10. a reactive power compensator wireless remote monitering method is characterized in that, said method comprising the steps of:
S100: microcontroller (1) gathers the information data on the monitor node of reactive power compensator (4), and by eCAN controller (10) image data is sent to CAN bus transceiver (2);
S101: will cross GPRS and the Internet network is sent to server (7) from the data communication device of CAN bus transceiver (2) by radio receiving transmitting module (3);
S102: at server (7) end building database, the data of the different nodes of storage administration, and obtain electrical network quality of power supply information and report by database, thus grasp the operation conditions of reactive power compensator and whole electrical network;
S103: the control information that is produced by server (7) is sent to radio receiving transmitting module (3) through GPRS and Internet network, pass through successively again CAN bus transceiver (2) and microcontroller (1), send the action executing order by microcontroller (1) to the corresponding monitor node of reactive power compensator (4).
11. a kind of reactive power compensator wireless remote monitering method according to claim 10 is characterized in that the wireless data transmission flow of radio receiving transmitting module among the described step S101 (3) also further may further comprise the steps:
S1011: the serial ports of intiating radio transceiver module (3), SPI interface and wireless remote control system parameter;
S1012: whether the antenna condition that checks wireless sending module (3) has signal;
S1013: the system clock of intiating radio remote monitoring receives the CAN bus data from CAN bus transceiver (2);
S1014: initialization GPRS/GSM integration module (33), carry out communication with server (7), radio receiving transmitting module (3) enters running status, sends packet.
12. a kind of reactive power compensator wireless remote monitering method according to claim 11 is characterized in that: described A/D converting unit (8) gathers reactive power compensator (4) and comprises electrical network three-phase line voltage U
AB, U
BC, U
CAWith three-phase current I
A, I
B, I
CIn interior data, and the voltage and current data that collect are sent to microcontroller (1) calculate and comprise three-phase voltage effective value U
_ AB, U
_ BC, U
_ CA, three-phase current effective value I
_ A, I
_ B, I
_ C, the active-power P of three-phase
A, P
B, P
C, three phase reactive power Q
A, Q
B, Q
C, total active-power P
_ ABC, total reactive power Q
_ ABC, apparent power S
_ ABC, power-factor cos phi and harmonic number are in interior data; Then these data are shown in the main interface of server (7) monitoring, data are drawn out in the real-time curve interface, simultaneously data communication device is crossed the CAN bus and sent to radio receiving transmitting module (3), and be sent to server (7) by GPRS and Internet network.
13. the described a kind of reactive power compensator wireless remote monitering method of arbitrary claim according to claim 10-12, it is characterized in that: the data of described reactive power compensator wireless remote control system comprise 70 bytes altogether.
14. the described a kind of reactive power compensator wireless remote monitering method of arbitrary claim according to claim 10-12 is characterized in that: the CAN agreement of described CAN bus communication circuit adopts standard frame ID, and the length in frame ID territory is 11.
15. the described a kind of reactive power compensator wireless remote monitering method of arbitrary claim according to claim 10-12 is characterized in that: the CAN agreement of described CAN bus communication circuit adopts the 250K baud rate.
16. a kind of reactive power compensator wireless remote monitering method according to claim 13, it is characterized in that: the CAN agreement of described CAN bus communication circuit adopts successive frame ID to organize to define this 70 bytes, and all data that comprise a byte and check byte in the wireless remote control system serial port protocol are all wrapped in the CAN data.
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| CN104502741B (en) * | 2014-11-26 | 2018-05-04 | 河北旭辉电气股份有限公司 | Static reactive generator remote online monitoring system |
| CN104597880A (en) * | 2015-01-05 | 2015-05-06 | 四川双众科技有限公司 | Remote real-time monitoring system for reactive power of power grid user |
| CN105207230A (en) * | 2015-09-23 | 2015-12-30 | 国家电网公司 | Reactive power and harmonic protection automatic control switch |
| CN107230987A (en) * | 2017-07-27 | 2017-10-03 | 广东电网有限责任公司惠州供电局 | A kind of distribution network var compensation Regional Synergetic control system based on mixing reactive power compensator |
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| CN108649588A (en) * | 2018-06-25 | 2018-10-12 | 湖北工业大学 | A kind of communication-type intelligent powerless compensation comprehensive treatment device |
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| CN109510316A (en) * | 2019-01-10 | 2019-03-22 | 瑞通阿西亚(天津)科技有限公司 | Power quality intelligence platform |
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