CN105246051A - Monitoring method for implementing photovoltaic power generation system through broadcast - Google Patents
Monitoring method for implementing photovoltaic power generation system through broadcast Download PDFInfo
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- CN105246051A CN105246051A CN201510597013.6A CN201510597013A CN105246051A CN 105246051 A CN105246051 A CN 105246051A CN 201510597013 A CN201510597013 A CN 201510597013A CN 105246051 A CN105246051 A CN 105246051A
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- power generation
- photovoltaic power
- generation system
- distributed photovoltaic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a monitoring method for implementing a photovoltaic power generation system through broadcast. Central monitoring scheduling and distributed photovoltaic power generation systems are respectively provided with wireless broadcast transmission and receiving equipment shown in figure 1. The exterior of a control unit of each central monitoring scheduling and distributed photovoltaic power generation system is provided with a bidirectional analog-digital converter, a modem, and a bidirectional power amplifier. Through the arrangement of different bands of different distributed photovoltaic power generation systems, the method enables the data receiving and transmission bands of the same distributed photovoltaic power generation system to be different. Different distributed photovoltaic power generation systems has different frequency bands, and has no intersection. The method achieves the information interaction among the central monitoring scheduling and distributed photovoltaic power generation systems in a mode of broadcast, and achieves the state monitoring and command sending of the central monitoring scheduling and distributed photovoltaic power generation systems. The method employs wireless broadcast for information transmission, greatly improves the wall penetration capability, and is wider in coverage.
Description
Art
Patent of the present invention relates to field of photovoltaic power generation, and specific design is to the Stateful Inspection of distributed photovoltaic power generation system and control technology.
Background technology
As the generation of electricity by new energy technology that the whole world is at present the most ripe, photovoltaic power generation technology obtains significant progress, and photovoltaic generation cause have also been obtained and develops fast.For now, China's theCourse of PV Industry is main still to build centralized photovoltaic plant, but along with the continuous maturation of distributed photovoltaic power generation technology, being applied in of distributed photovoltaic power generation is domestic also by more and more extensive, but also bring new problem to the supervisory control system etc. of photovoltaic generating system simultaneously.First, distributed photovoltaic power generation entire system lays dispersion, adopt the supervisory control system of traditional wire communication not only to lay difficulty, and network construction expense is also very high, centralized maintenance difficulty; Secondly, although distributed photovoltaic power generation system can communicate by means of public networks such as China Mobile, but for photovoltaic generating system, especially western China distributed photovoltaic power generation system, major part is in the region that mobile network does not cover or signal is more weak, does not possess distributed photovoltaic and concentrates access capability.Again, although distributed photovoltaic power generation system can be set up local area wireless network and communicate, but because wireless network signal strength, the traffic rates etc. such as WIFI affect by barrier etc. serious, be not especially suitable for and apply in distributed photovoltaic power generation system from far-off regions, that distributed locations is far away.
Summary of the invention
High in order to solve the network construction expense that distributed photovoltaic power generation alliance disperses to bring, the problems such as monitoring difficulty, consider that communications facility is easy for installation simultaneously, be convenient to the factors such as distributed photovoltaic power generation system access expansion, the invention provides a kind of method for supervising utilizing broadcast to realize photovoltaic generating system, wireless broadcast transmission and receiving equipment is all equiped with in CSRC dispatching patcher and distributed photovoltaic power generation system place, by the differentiation of the signal transmission frequency range to different distributions formula photovoltaic generating system, the information interaction that the form of broadcast realizes between CSRC dispatching patcher and distributed photovoltaic power generation system can be adopted, solve distributed photovoltaic power generation grid difficult wiring, the problems such as complicated and dilatancy difference are installed.
technical scheme
The method for supervising that the present invention utilizes broadcast to realize photovoltaic generating system is applicable to comprise the typical light photovoltaic generating system topology of CSRC dispatching patcher and distributed photovoltaic power generation system, as shown in Figure 1, digital to analog converter, modulator-demodulator, power amplifier, broadcast transmission and reception tower etc. have all been built in distributed photovoltaic power generation system and CSRC dispatching patcher.
The present invention utilizes broadcast to realize the method for supervising CSRC of photovoltaic generating system and dispatching patcher control unit passes through analog to digital converter, modulator-demodulator and power amplifier can realize with distributed photovoltaic power generation system data mutual, first by digital to analog converter, the digital signal that CSRC dispatching patcher control unit exports is converted into analog signal when carrying out order data transmission, then corresponding high frequency electrical signal is generated through modulator-demodulator, and amplify through power amplifier, then by broadcast transmission and reception tower, amplifying signal is sent towards periphery in the mode of radio wave.First received the radio wave signal of each distributed photovoltaic system transmission by broadcast transmission and reception tower when carrying out distributed photovoltaic power generation system data and receiving, then through power amplifier, radio wave signal is amplified, electrical signal status is obtained according to certain frequency change through modulator-demodulator according to each distributed photovoltaic power generation system data reception order, convert electrical signals to digital signal through analog to digital converter and be sent to CSRC dispatching patcher control unit, realize the Stateful Inspection to distributed photovoltaic power generation system.
The present invention utilizes broadcast to realize each distributed photovoltaic power generation system control unit in the method for supervising of photovoltaic generating system and pass through analog to digital converter, modulator-demodulator and power amplifier can realize and CSRC and dispatching patcher data interaction, first the state information digital signal that distributed photovoltaic power generation system control unit exports is converted into analog signal when carrying out oneself state information and sending, then corresponding high frequency electrical signal is generated through modulator-demodulator, and amplify through power amplifier, then by broadcast transmission and reception tower, amplifying signal is sent towards periphery in the mode of radio wave.When carrying out ambient condition collection and control command receives first by broadcast transmission and the radio wave signal receiving tower reception CSRC and dispatching patcher transmission, then through power amplifier, radio wave signal is amplified, frequency range according to respective distributed photovoltaic power generation system assignment obtains electrical signal status through modulator-demodulator, convert electrical signals to digital signal through analog to digital converter and be sent to distributed photovoltaic power generation system control unit, realize the control to distributed photovoltaic power generation system.
The present invention utilizes broadcast to realize adopting different high-frequency signal to modulate according to certain rule CSRC and dispatching patcher and each distributed photovoltaic power generation system broadcast information in the method for supervising of photovoltaic generating system, realize the difference to different system radio transmission information, CSRC dispatching patcher and each distributed photovoltaic power generation system can realize communicating and information interaction by radio broadcasting each other.
the beneficial effect of this patent
The method for supervising that the present invention utilizes broadcast to realize photovoltaic generating system adopts radio broadcasting to carry out information transmission in photovoltaic generating system, solves traditional wire information transmission network and lays difficulty, and lay the shortcomings such as Fei Gao.Compare and carry out transfer of data with public networks such as carrying movement, UNICOM, CSRC dispatching patcher of the present invention and each distributed photovoltaic power generation system are provided with power amplifier, radio broadcasting sends and receive tower, connect for the distributed photovoltaic power generation system being in remote districts provides reliable communication.In addition, compared to wireless networks such as WIFI, radio broadcasting signal ability through walls etc. promotes greatly, and overlay area is also more extensive.
Accompanying drawing explanation
Fig. 1 is the photovoltaic generating system communication construction based on radio broadcasting;
Fig. 2 is CSRC dispatching patcher broadcast singal transmitting-receiving block diagram;
Fig. 3 is distributed photovoltaic power generation system broadcasts signal transmitting and receiving block diagram.
Embodiment
As shown in Figure 1, the method for supervising utilizing broadcast to realize photovoltaic generating system is applicable to comprise the Stateful Inspection of each equipment of photovoltaic generating system of CSRC dispatching patcher and distributed photovoltaic power generation system and runs control, all build broadcast transmission in distributed photovoltaic power generation system and CSRC dispatching patcher and received tower etc., having possessed the transmitting and receiving function of radio broadcasting.
As shown in Figure 2, the present invention builds in CSRC dispatching patcher digital to analog converter, modulator-demodulator, power amplifier, broadcast transmission and reception tower.Select SonifexRB-ADDA2A/D & D/A digital to analog converter, digital signal can be realized to analog signal and analog signal to the bi-directional conversion of digital signal, adopt the modulator-demodulator from exploitation, adopt ADL5385 chip, the inphase-quadrature modem of 50MHz-2200MHz can be realized, select GST-GF500W broadcasting power amplifier, possess the Bi-directional amplifier function of transmission and Received signal strength.
As shown in Figure 3, the present invention builds in each distributed photovoltaic power generation system digital to analog converter, modulator-demodulator, power amplifier, broadcast transmission and reception tower.Select SonifexRB-ADDA2A/D & D/A digital to analog converter, digital signal can be realized to analog signal and analog signal to the bi-directional conversion of digital signal, adopt the modulator-demodulator from exploitation, adopt ADL5385 chip, the inphase-quadrature modem of 50MHz-2200MHz can be realized, select GST-GF500W broadcasting power amplifier, possess the Bi-directional amplifier function of transmission and Received signal strength.
In the present invention, the radio broadcast frequency of different distributions formula photovoltaic generating system institute modulation /demodulation is different, the data message of the information being representative different distributions formula photovoltaic generating system that different frequency transmits, and the differentiation boundary line using 1000MHz as each distributed generation system digital received and sent, the broadcasting frequency that all distributed photovoltaic power generation system transmission data adopt is less than 1000MHz, and the broadcasting frequency that all distributed photovoltaic power generation system receives data adopt is greater than 1000MHz.
When CSRC dispatching platform of the present invention carries out the supervision of distributed photovoltaic power generation system mode, first oneself state information exports with digital signal form by different distributions formula photovoltaic generating system control unit, digital signal is converted to analog signal through analog to digital converter, utilize modulator-demodulator, according to set distribution frequency range (being less than 1000MHz), analog signal is modulated to the signal of telecommunication, carry out information transmission through power amplifier and broadcast emission tower; After CSRC dispatching patcher broadcast reception tower receives corresponding radio broadcasting signal, through power amplifier process, then according to corresponding band, the signal of telecommunication is demodulated into analog signal, then through analog to digital converter, analog signal is converted to digital signal, sends into the supervision of CSRC dispatching patcher control unit realization to distributed photovoltaic power generation system.
When CSRC dispatching platform of the present invention sends order to distributed photovoltaic power generation system, first CSRC and dispatching patcher control unit output digit signals (command signal) are converted to analog signal through analog to digital converter, utilize modulator-demodulator, according to the distribution frequency range (being greater than 1000MHz) of corresponding distributed photovoltaic power generation system, analog signal is modulated to the signal of telecommunication, carry out information transmission through power amplifier and broadcast emission tower; After each distributed photovoltaic power generation system acceptance tower receives corresponding radio broadcasting signal, through power amplifier process, then according to self distributing frequency range, the signal of telecommunication is demodulated into analog signal, and select self to distribute multi-band broadcast information, then through analog to digital converter, analog signal is converted to digital signal, sends into the reception of each distributed photovoltaic power generation system control unit realization to central monitoring and dispatching system control command.
Claims (6)
1. the method for supervising utilizing broadcast to realize photovoltaic generating system, it is characterized in that: distributed photovoltaic power generation system and CSRC dispatching patcher have all built two-way mode transducer, modulator-demodulator, bilateral power amplifier, broadcast transmission and reception tower etc., and distributed photovoltaic power generation system and CSRC dispatching patcher all possess the transmitting and receiving function of radio broadcasting.
2. the method for supervising of distributed photovoltaic power generation system according to claim 1, it is characterized in that in CSRC dispatching patcher wireless broadcast communication, select SonifexRB-ADDA2A/D & D/A digital to analog converter, digital signal can be realized to analog signal and analog signal to the bi-directional conversion of digital signal, adopt the modulator-demodulator from exploitation, adopt ADL5385 chip, the inphase-quadrature modem of 50MHz-2200MHz can be realized, select GST-GF500W broadcasting power amplifier, possess the Bi-directional amplifier function of transmission and Received signal strength.
3. the method for supervising of distributed photovoltaic power generation system according to claim 1, it is characterized in that selecting SonifexRB-ADDA2A/D & D/A digital to analog converter in wireless broadcast communication in each distributed photovoltaic power generation system, digital signal can be realized to analog signal and analog signal to the bi-directional conversion of digital signal, adopt the modulator-demodulator from exploitation, adopt ADL5385 chip, the inphase-quadrature modem of 50MHz-2200MHz can be realized, select GST-GF500W broadcasting power amplifier, possess the Bi-directional amplifier function of transmission and Received signal strength.
4. the method for supervising of distributed photovoltaic power generation system according to claim 1, it is characterized in that the radio broadcast frequency of different distributions formula photovoltaic generating system institute modulation /demodulation is different, the data message of the information being representative different distributions formula photovoltaic generating system that different frequency transmits, and the differentiation boundary line using 1000MHz as each distributed generation system digital received and sent, the broadcasting frequency that all distributed photovoltaic power generation system transmission data adopt is less than 1000MHz, the broadcasting frequency that all distributed photovoltaic power generation system receives data adopt is greater than 1000MHz.
5. the method for supervising of distributed photovoltaic power generation system according to claim 4, when it is characterized in that CSRC dispatching platform carries out the supervision of distributed photovoltaic power generation system mode, first oneself state information exports with digital signal form by different distributions formula photovoltaic generating system control unit, digital signal is converted to analog signal through analog to digital converter, utilize modulator-demodulator, according to set distribution frequency range (being less than 1000MHz), analog signal is modulated to the signal of telecommunication, carry out information transmission through power amplifier and broadcast emission tower; After CSRC dispatching patcher broadcast reception tower receives corresponding radio broadcasting signal, through power amplifier process, then according to corresponding band, the signal of telecommunication is demodulated into analog signal, then through analog to digital converter, analog signal is converted to digital signal, sends into the supervision of CSRC dispatching patcher control unit realization to distributed photovoltaic power generation system.
6. the method for supervising of distributed photovoltaic power generation system according to claim 4, when it is characterized in that CSRC dispatching platform sends order to distributed photovoltaic power generation system, first CSRC and dispatching patcher control unit output digit signals (command signal) are converted to analog signal through analog to digital converter, utilize modulator-demodulator, according to the distribution frequency range (being greater than 1000MHz) of corresponding distributed photovoltaic power generation system, analog signal is modulated to the signal of telecommunication, carry out information transmission through power amplifier and broadcast emission tower; After each distributed photovoltaic power generation system acceptance tower receives corresponding radio broadcasting signal, through power amplifier process, then according to self distributing frequency range, the signal of telecommunication is demodulated into analog signal, and select self to distribute multi-band broadcast information, then through analog to digital converter, analog signal is converted to digital signal, sends into the reception of each distributed photovoltaic power generation system control unit realization to central monitoring and dispatching system control command.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060162772A1 (en) * | 2005-01-18 | 2006-07-27 | Presher Gordon E Jr | System and method for monitoring photovoltaic power generation systems |
| CN101674032A (en) * | 2009-10-19 | 2010-03-17 | 浙江大学 | Automatic tracking type photovoltaic power station monitoring system based on wireless network |
| CN102104350A (en) * | 2009-12-21 | 2011-06-22 | 叶明宝 | Intelligent photovoltaic battery component |
| CN202587030U (en) * | 2011-12-26 | 2012-12-05 | 东方日立(成都)电控设备有限公司 | GPRS-based photovoltaic power generation remote monitoring device |
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2015
- 2015-09-18 CN CN201510597013.6A patent/CN105246051A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060162772A1 (en) * | 2005-01-18 | 2006-07-27 | Presher Gordon E Jr | System and method for monitoring photovoltaic power generation systems |
| CN101674032A (en) * | 2009-10-19 | 2010-03-17 | 浙江大学 | Automatic tracking type photovoltaic power station monitoring system based on wireless network |
| CN102104350A (en) * | 2009-12-21 | 2011-06-22 | 叶明宝 | Intelligent photovoltaic battery component |
| CN202587030U (en) * | 2011-12-26 | 2012-12-05 | 东方日立(成都)电控设备有限公司 | GPRS-based photovoltaic power generation remote monitoring device |
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Application publication date: 20160113 |
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