CN106330485A - Redundant networking system and method of photovoltaic sub-array monitoring device - Google Patents
Redundant networking system and method of photovoltaic sub-array monitoring device Download PDFInfo
- Publication number
- CN106330485A CN106330485A CN201510342686.7A CN201510342686A CN106330485A CN 106330485 A CN106330485 A CN 106330485A CN 201510342686 A CN201510342686 A CN 201510342686A CN 106330485 A CN106330485 A CN 106330485A
- Authority
- CN
- China
- Prior art keywords
- supervising device
- network
- photovoltaic
- message
- redundancy group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
- H04L41/0836—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability to enhance reliability, e.g. reduce downtime
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
Abstract
The invention discloses a redundant networking system of a photovoltaic sub-array monitoring device. The redundant networking system comprises a ring network switch, and the ring network switch is located in a main control room and is used as a central switch of the entire photovoltaic area monitoring system; the redundant networking system further comprises a plurality of monitoring devices, and each monitoring device is provided with a plurality of network interfaces; the monitoring devices are serially connected by network interfaces and network transmission media to form a monitoring device string; and two ends of the monitoring device string are separately connected with the ring network switch to form an annular redundant network. The invention further discloses a redundant networking method of the photovoltaic sub-array monitoring device. The redundant networking system disclosed by the invention has single-point fault self-healing ability, meets the requirements of the photovoltaic monitoring system, greatly reduces the number of the switches, saves the investment cost and reduces the installation and maintenance workload.
Description
Technical field
The present invention relates to communication redundancy networking technology, particularly to a kind of photovoltaic submatrix supervising device redundancy networking system
System and method.
Background technology
Solar energy power generating is a kind of important generation of electricity by new energy technology.Along with not being broken into of photovoltaic cell technology
Ripe progress, the cost of photovoltaic generation gradually reduces, and photovoltaic generation installed capacity is substantially increased in recent years, occupies
Consequence, there is highly important meaning in its energy problem faced for solving the current whole world.
In February, 2015, National Energy Board issues and circulates a notice of about the meeting of situation about photovoltaic industry monitoring, cuts
To the end of the year 2014, whole nation photovoltaic generation adds up grid-connected installed capacity 28.05GW, and wherein photovoltaic plant is
23.38GW, distributed for 4.67GW.2015 yearly plans increase 15GW newly, and exceeding half is photovoltaic plant.
It is seen from the above data that China's photovoltaic generation installed capacity is mainly based on photovoltaic plant.Large-scale light
Overhead utility typically uses piecemeal generating, concentrates grid-connected mode, and the most every 1 megawatt is a submatrix, and configuration converges
Stream case, inverter have become inversion and boosting with case, and multiple submatrixs focus on a road and deliver to low-voltage bus bar, finally
Be connected to the grid after being boosted by main transformer system.Monitoring to photovoltaic district equipment, Most current is special in each submatrix
The equipment such as door configuration monitoring device, communication processor, ring exchanger realize.
In the middle of prior art, photovoltaic submatrix network-building method and system are as it is shown in figure 1, the center switch of master control room
10 with the ring exchanger 11 makeup ring l network 13 of each submatrix, supervising device 12 accesses the looped network of submatrix
Switch 11, supervising device 12 gathers the information of submatrix and delivers in monitoring system by looped network 13.This
Scheme must be separately configured ring exchanger.Photovoltaic district monitoring system scale is big, and switch consumption is many, and engineering becomes
This height, as a example by the photovoltaic plant of a 100MW, 1MW configures a ring exchanger, total throwing of switch
Money reaches hundreds thousand of unit.Switch also to take the installation site of screen cabinet, and construction and maintenance workload are big.
Summary of the invention
The purpose of the present invention, is to provide a kind of photovoltaic submatrix supervising device redundancy networking being applicable to photovoltaic plant
System and method, the present invention, in the case of meeting user's request, reduces cost, convenient installation, improves sexual valence
Ratio.
In order to reach above-mentioned purpose, the solution of the present invention is: photovoltaic submatrix supervising device redundancy group network system,
It is characterized in that: include a ring exchanger, described ring exchanger is positioned at master control room and as whole light
The center switch of volt district monitoring system；Also include that some supervising devices, each supervising device possess multiple network
Interface；It is in series by network interface and Network Transfer Media between described supervising device, forms supervising device string；
Described supervising device string two ends are connected with ring exchanger respectively, form a ring redundancy network.
Further, the network interface of described supervising device is electricity mouth or optical fiber interface；Described supervising device is mutual
Between by network interface forward broadcast, multicast and non-device MAC Address unicast message (referred to as unknown
Clean culture), and the message that target MAC (Media Access Control) address is mated with this device MAC Address, above give this supervising device
CPU process, no longer forwards.
Further, described supervising device is additionally operable to Suppression network storm.
Further, described Suppression network storm includes setting the flow suppression to broadcast, multicast and unknown unicast
Threshold value, exceedes threshold, abandons the message beyond limit current value.
Further: described supervising device is additionally operable to specifying message unconditionally to forward；Described appointment message without
Condition forwards not to be affected by network storm suppression function.
Further, the configuration of described ring exchanger is as follows: ring exchanger opens RSTP agreement, RSTP
Protocol parameter HelloTime, MaxAge and ForwardDelay take the minima in the range of Protocol Ref.
Further, Network Transfer Media is twisted-pair feeder or optical fiber.
In order to reach above-mentioned purpose, the another kind of solution of the present invention is photovoltaic submatrix supervising device redundancy networking
Method, comprises the following steps:
Ring exchanger is arranged at master control room and the center switch as whole photovoltaic district monitoring system；
To be in series by network interface and Network Transfer Media between supervising device, form supervising device string；
Supervising device string two ends are connected with ring exchanger respectively, form a ring redundancy network.
Further, described supervising device possesses multiple network interface；
Further, described supervising device forwards broadcast, multicast and non-dress by network interface each other
Put the unicast message (referred to as unknown unicast) of MAC Address, and by target MAC (Media Access Control) address and this device MAC ground
The message of location coupling, above gives the CPU process of this supervising device, no longer forwards；
The network interface of described supervising device is electricity mouth or optical fiber interface.
Further, described supervising device is additionally operable to Suppression network storm.
Further, described Suppression network storm includes setting the flow suppression to broadcast, multicast and unknown unicast
Threshold value, exceedes threshold, abandons the message beyond limit current value.
Further, described supervising device is additionally operable to specifying message unconditionally to forward；Described appointment message is without bar
Part forwards not to be affected by network storm suppression function.
Further, the configuration of described ring exchanger is as follows: ring exchanger opens RSTP agreement, RSTP
Protocol parameter HelloTime, MaxAge and ForwardDelay take the minima in the range of Protocol Ref.
Further, Network Transfer Media is twisted-pair feeder or optical fiber.
This photovoltaic submatrix supervising device redundancy group network method and system, including a ring exchanger, this switch
It is positioned at master control room, is the center switch of whole photovoltaic district monitoring system.Also include some supervising devices, each
Supervising device possesses multiple network interface, monitoring is filled by two of which network interface and Network Transfer Media
Put and couple together hand in hand, final center switch one ring redundancy network of composition with described monitoring system.
Supervising device in described method and system possesses following function:
(1) supervising device possesses multiple network interface, can be electricity mouth or optical fiber interface, two of which network
Interface can forward unicast message (the referred to as unknown list of broadcast, multicast and non-device MAC Address each other
Broadcast), the message that target MAC (Media Access Control) address is mated with this device MAC Address, above give the CPU process of this device,
No longer forward.
(2) supervising device possesses network storm suppression function, can set broadcast, multicast and unknown unicast
Flow suppression threshold value, exceed threshold, abandon the message beyond limit current value.
(3) supervising device possesses the function specifying message unconditionally to forward, it is intended that the forwarding of message is not
Affected by network storm suppression function.Described appointment message is the management message BPDU (Bridge of RSTP
Protocol Data Unit)。
Ring exchanger in described method and system supports RSTP agreement, and opens RSTP agreement, agreement
The span of parameter Hel loTime, MaxAge and ForwardDelay with reference to " IEEE 802.1D-2004,
17.14,Table 17-1RSTP Timer and Transmit Hold Count parameter values”。
The value of described parameter takes with reference to the minima in span, to meet the requirement of the fast quick-recovery of looped network.
The Network Transfer Media connecting switch and supervising device in described method and system is twisted-pair feeder or optical fiber.
From technique scheme it can be seen that the invention has the beneficial effects as follows: switch and supervising device makeup ring
Shape redundant network, this network possesses Single Point of Faliure self-healing ability, has reached whole use group of switches and has become looped network phase
Same effect, substantially reduce the number the consumption of switch simultaneously, has saved cost of investment, decreases installation and safeguards
Workload.
Accompanying drawing explanation
Fig. 1 is photovoltaic submatrix network-building method and system schematic in the middle of prior art.
Fig. 2 is photovoltaic submatrix supervising device redundancy group network method and the system schematic of the present invention.
Fig. 3 is the photovoltaic submatrix monitoring system equivalent network schematic diagram of the present invention.
Detailed description of the invention
For making technical scheme with feature definitely, below in conjunction with the accompanying drawings the present invention is made further
Illustrate.
Embodiment 1
See Fig. 2, this photovoltaic submatrix supervising device redundancy group network system, including a ring exchanger, described
Ring exchanger is positioned at master control room and the center switch as whole photovoltaic district monitoring system；Also include some
Supervising device, each supervising device possesses multiple network interface；Between described supervising device by network interface and
Network Transfer Media is in series, and forms supervising device string；Described supervising device string two ends respectively with ring exchanger
Connect, form a ring redundancy network.
Preferably, the network interface of described supervising device is electricity mouth or optical fiber interface；Described supervising device
The unicast message of broadcast, multicast and non-device MAC Address is forwarded (referred to as each other by network interface
Unknown unicast), and the message that target MAC (Media Access Control) address is mated with this device MAC Address, above give this monitoring to fill
The CPU process put, no longer forwards.Described supervising device is additionally operable to Suppression network storm.Described Suppression network wind
Cruelly include setting the flow suppression threshold value to broadcast, multicast and unknown unicast, exceed threshold, abandon beyond stream
The message of amount limit value.Described supervising device is additionally operable to specifying message unconditionally to forward；Described appointment message is without bar
Part forwards not to be affected by network storm suppression function.The configuration of described ring exchanger is as follows: ring exchanger
Opening RSTP agreement, RSTP protocol parameter HelloTime, MaxAge and ForwardDelay take agreement ginseng
Minima in the range of examining.Network Transfer Media is twisted-pair feeder or optical fiber.
As in figure 2 it is shown, this photovoltaic submatrix supervising device redundancy group network system, including a ring exchanger 100,
This switch is normally at master control room, is the center switch of whole photovoltaic district monitoring system.Also include some prisons
Control device 110, each photovoltaic submatrix one supervising device of configuration, each supervising device possesses two optical fiber interfaces
111, by the two optical fiber interface and optical fiber 120, all for photovoltaic submatrix supervising devices are connected hand in hand
Come, optical fiber interface 101 and 102 one fiber annular of composition of the final center switch 100 with monitoring system
Redundant network 130.The supervising device of photovoltaic submatrix can be formed a fiber optic loop according to on-the-spot practical situation
Net, it is also possible to form multiple optical fiber ring network, such as 130 and 131.
Described supervising device 110 possesses two optical fiber interfaces 111, and due to the distance of fiber optic communication, signal is steady
Fixed, more often use in photovoltaic monitoring system.Said two optical fiber interface is the looped network mouth of supervising device, mutually
Between can forward broadcast, multicast and the unicast message of non-device MAC Address, for target MAC (Media Access Control) address with
The message of this device MAC Address coupling, above gives the CPU process of this device, no longer forwards, it is to avoid message is at ring
Interior open-rely.
Described supervising device 110 possesses network storm suppression function, can set broadcast, multicast and the unknown list
The flow suppression threshold broadcast, such as, in the case of 20 supervising device composition looped networks, broadcast traffic threshold sets
Being set to 800Kbps, flux of multicast threshold is set to 100Kbps, and unknown unicast flow threshold is set to 2Mbps,
The traffic demand of normal communication can be met, can effectively limit network storm when looped network closes moment again, it is to avoid
Network is produced impact and affects RSTP agreement and normally work and cause looped network mechanism failure.
Described supervising device 110 sets specifying message unconditionally to forward.Described appointment message is RSTP
BPDU, i.e. target MAC (Media Access Control) address is the message of 01:80:c2:00:00:00.Described supervising device is any
Under the conditions of BPDU will be forwarded, assist center switch 100 RSTP agreement normally work.
Described ring exchanger 100 supports RSTP agreement, and opens RSTP agreement, the relevant ginseng of configuration protocol
Number, specifically, it is simply that be to Bridge Hello Time (IEEE 802.1D-2004,17.13.6, letter
Claim HelloTime), Bridge Max Age (IEEE 802.1D-2004,17.13.8 are called for short MaxAge)
With Bridge Forward Delay (IEEE 802.1D-2004,17.13.5 are called for short ForwardDelay)
Configure.It is sending out of RSTP configuration message (BPDU) according to IEEE 802.1D-2004, HelloTime
Sending cycle, MaxAge is the maximum lifetime of the message that root switch sends, and ForwardDelay is port
The conversion time of state, the span of this three is with reference to IEEE 802.1D-2004,17.14, Table 17-1
RSTP Timer and Transmit Hold Count parameter values, also should meet such as simultaneously
Lower condition:
2 × (ForwardDelay-1) >=MaxAge (1)
MaxAge >=2 × (HelloTime+1) (2)
HelloTime is the least, and configuration message sends the fastest, and ForwardDelay is the least, and port translation is for forwarding
The time of state is the shortest, and MaxAge is the least, and the life cycle of message is the shortest.
RSTP agreement do not supported by described supervising device, only forwards the BPDU of RSTP, and system shown in Figure 2 is actual
On be equivalent to system shown in Figure 3, i.e. be equivalent to lead between the optical fiber interface 101 and 102 of center switch 100
Cross an optical fiber 140 to be joined directly together.According to the transfer principle of RSTP agreement, when closed circuit, meet RSTP
Fast-negotiation condition, port 201 is designated port, and rapid translating is forwarding state, and port 202 is standby end
Mouthful, keep blocked state, it is possible to realize unlinking and recovering communication within a HelloTime cycle；Solve open loop
Lu Shi, if off be the link being connected with 202, communication is not affected, disconnects other link, then must
The delay strategy that must rely on STP recovers communication.It is said that in general, HelloTime, ForwardDelay and MaxAge
Take the minima in allowed band and meet condition (1) and condition (2), the shortest recovery time delay can be obtained,
Therefore, the present embodiment uses following configuration: HelloTime is 1, and ForwardDelay is 4, and MaxAge is
6, the recovery time delay of about 10 seconds can be obtained, meet the demand of photovoltaic monitoring system.
This photovoltaic submatrix supervising device redundancy group network system, meeting photovoltaic monitoring system communicating requirement and can have
Under conditions of standby redundancy self-healing ability, a large amount of investment reduction costs, reduce project installation maintenance workload.
Embodiment 2
See Fig. 2 and Fig. 3, this photovoltaic submatrix supervising device redundancy group network method, comprise the following steps:
Ring exchanger is arranged at master control room and the center switch as whole photovoltaic district monitoring system；
To be in series by network interface and Network Transfer Media between supervising device, form supervising device string；
Supervising device string two ends are connected with ring exchanger respectively, form a ring redundancy network.
Further, described supervising device possesses multiple network interface；
Further, described supervising device forwards broadcast, multicast and non-dress by network interface each other
Put the unicast message (referred to as unknown unicast) of MAC Address, and by target MAC (Media Access Control) address and this device MAC ground
The message of location coupling, above gives the CPU process of this supervising device, no longer forwards；
The network interface of described supervising device is electricity mouth or optical fiber interface.
Preferably, described supervising device is additionally operable to Suppression network storm.Described Suppression network storm includes
Set the flow suppression threshold value to broadcast, multicast and unknown unicast, exceed threshold, abandon beyond limit current value
Message.Described supervising device is additionally operable to specifying message unconditionally to forward；Described appointment message unconditionally forwards
Do not affected by network storm suppression function.The configuration of described ring exchanger is as follows: ring exchanger is opened
RSTP agreement, RSTP protocol parameter HelloTime, MaxAge and ForwardDelay take Protocol Ref scope
Interior minima.Network Transfer Media is twisted-pair feeder or optical fiber.
Other parts of the present embodiment 2 are same as in Example 1, no longer describe in detail.
Above example is only the technological thought that the present invention is described, it is impossible to limit protection scope of the present invention with this,
Every technological thought proposed according to the present invention, any change done on the basis of technical scheme, each fall within this
Within invention protection domain.
Claims (15)
1. a photovoltaic submatrix supervising device redundancy group network system, it is characterised in that: including a ring exchanger, described ring exchanger is positioned at master control room and the center switch as whole photovoltaic district monitoring system；Also include that some supervising devices, each supervising device possess multiple network interface；It is in series by network interface and Network Transfer Media between described supervising device, forms supervising device string；Described supervising device string two ends are connected with ring exchanger respectively, form a ring redundancy network.
2. photovoltaic submatrix supervising device redundancy group network system as claimed in claim 1, it is characterised in that: the network interface of described supervising device is electricity mouth or optical fiber interface；Described supervising device forwards broadcast, multicast and the unicast message of non-device MAC Address, and the message mated by target MAC (Media Access Control) address with this device MAC Address by network interface each other, above gives the CPU process of this supervising device, no longer forwards.
3. photovoltaic submatrix supervising device redundancy group network system as claimed in claim 1, it is characterised in that: described supervising device is additionally operable to Suppression network storm.
4. photovoltaic submatrix supervising device redundancy group network system as claimed in claim 3, it is characterised in that: described Suppression network storm includes setting the flow suppression threshold value to broadcast, multicast and unknown unicast, exceedes threshold, abandons the message beyond limit current value.
5. photovoltaic submatrix supervising device redundancy group network system as claimed in claim 1, it is characterised in that: described supervising device is additionally operable to specifying message unconditionally to forward；Described appointment message unconditionally forwards not to be affected by network storm suppression function.
6. method and system as claimed in claim 1, it is characterised in that: the configuration of described ring exchanger is as follows: ring exchanger opens RSTP agreement, and RSTP protocol parameter HelloTime, MaxAge and ForwardDelay take the minima in the range of Protocol Ref.
7. method and system as claimed in claim 1, is further characterized in that: Network Transfer Media is twisted-pair feeder or optical fiber.
8. a photovoltaic submatrix supervising device redundancy group network method, it is characterised in that:
Ring exchanger is arranged at master control room and the center switch as whole photovoltaic district monitoring system；
To be in series by network interface and Network Transfer Media between supervising device, form supervising device string；
Supervising device string two ends are connected with ring exchanger respectively, form a ring redundancy network.
9. photovoltaic submatrix supervising device redundancy group network method as claimed in claim 8, it is characterised in that: described supervising device possesses multiple network interface.
10. photovoltaic submatrix supervising device redundancy group network method as claimed in claim 8, it is characterized in that: described supervising device forwards broadcast, multicast and the unicast message (referred to as unknown unicast) of non-device MAC Address by network interface each other, and the message that target MAC (Media Access Control) address is mated with this device MAC Address, on give the CPU process of this supervising device, no longer forward；
The network interface of described supervising device is electricity mouth or optical fiber interface.
11. photovoltaic submatrix supervising device redundancy group network methods as claimed in claim 8, it is characterised in that: described supervising device is additionally operable to Suppression network storm.
12. photovoltaic submatrix supervising device redundancy group network methods as claimed in claim 11, it is characterised in that: described Suppression network storm includes setting the flow suppression threshold value to broadcast, multicast and unknown unicast, exceedes threshold, abandons the message beyond limit current value.
13. photovoltaic submatrix supervising device redundancy group network methods as claimed in claim 8, it is characterised in that: described supervising device is additionally operable to specifying message unconditionally to forward；Described appointment message unconditionally forwards not to be affected by network storm suppression function.
14. photovoltaic submatrix supervising device redundancy group network methods as claimed in claim 8, it is characterized in that: the configuration of described ring exchanger is as follows: ring exchanger opens RSTP agreement, and RSTP protocol parameter HelloTime, MaxAge and ForwardDelay take the minima in the range of Protocol Ref.
15. photovoltaic submatrix supervising device redundancy group network methods as claimed in claim 8, it is characterised in that: Network Transfer Media is twisted-pair feeder or optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342686.7A CN106330485A (en) | 2015-06-18 | 2015-06-18 | Redundant networking system and method of photovoltaic sub-array monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342686.7A CN106330485A (en) | 2015-06-18 | 2015-06-18 | Redundant networking system and method of photovoltaic sub-array monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106330485A true CN106330485A (en) | 2017-01-11 |
Family
ID=57732764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510342686.7A Pending CN106330485A (en) | 2015-06-18 | 2015-06-18 | Redundant networking system and method of photovoltaic sub-array monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106330485A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112714076A (en) * | 2020-12-31 | 2021-04-27 | 北京金日恒升科技有限公司 | Interconnected communication system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079782A (en) * | 2007-06-27 | 2007-11-28 | 四川东方电气自动控制工程有限公司 | Wind site communication network using dual loop redundancy |
| CN102833112A (en) * | 2012-08-31 | 2012-12-19 | 深圳市中电电力技术股份有限公司 | Communication management machine having looped network function |
| CN104104558A (en) * | 2014-06-27 | 2014-10-15 | 南京国电南自电网自动化有限公司 | Network storm suppression method in intelligent transformer station process layer communication |
| CN104410558A (en) * | 2014-11-12 | 2015-03-11 | 广州供电局有限公司 | Looped network physical link self-healing device based on a power grid protection device |
| CN104716743A (en) * | 2015-03-19 | 2015-06-17 | 南京南瑞继保电气有限公司 | Method and device for realizing integration of protection and control, communication and AGC substation |
-
2015
- 2015-06-18 CN CN201510342686.7A patent/CN106330485A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079782A (en) * | 2007-06-27 | 2007-11-28 | 四川东方电气自动控制工程有限公司 | Wind site communication network using dual loop redundancy |
| CN102833112A (en) * | 2012-08-31 | 2012-12-19 | 深圳市中电电力技术股份有限公司 | Communication management machine having looped network function |
| CN104104558A (en) * | 2014-06-27 | 2014-10-15 | 南京国电南自电网自动化有限公司 | Network storm suppression method in intelligent transformer station process layer communication |
| CN104410558A (en) * | 2014-11-12 | 2015-03-11 | 广州供电局有限公司 | Looped network physical link self-healing device based on a power grid protection device |
| CN104716743A (en) * | 2015-03-19 | 2015-06-17 | 南京南瑞继保电气有限公司 | Method and device for realizing integration of protection and control, communication and AGC substation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112714076A (en) * | 2020-12-31 | 2021-04-27 | 北京金日恒升科技有限公司 | Interconnected communication system and method |
| CN112714076B (en) * | 2020-12-31 | 2022-12-16 | 北京金日恒升科技有限公司 | Interconnected communication system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104270413B (en) | The communication system and method for a kind of distributed micro-capacitance sensor scheduling | |
| CN107181274A (en) | A kind of method that new energy accesses flexible direct current power network | |
| CN105140894A (en) | Phase difference principle based power distribution network differential protection method | |
| Liu et al. | A high-reliability and determinacy architecture for smart substation process-level network based on cobweb topology | |
| WO2012092793A1 (en) | Cellular power supply network, intelligent gateway thereof and power supply control method | |
| CN106410966A (en) | Energy management device for multi-energy complementary system | |
| CN203027378U (en) | Integrated intelligent isolation switch telecontrol operation and video monitoring system | |
| CN206004396U (en) | A kind of intelligent and complementary photovoltaic generating system of off-network | |
| CN202183743U (en) | Photovoltaic confluence box | |
| CN201449552U (en) | Power plant agc control system | |
| CN105406599B (en) | A kind of level of factory AGC accesses the redundancy structure method of power monitoring network | |
| CN106330485A (en) | Redundant networking system and method of photovoltaic sub-array monitoring device | |
| CN104333127A (en) | Power transmission and distribution controlling integrated communication network system based on distributed passive optical network | |
| CN204046182U (en) | A kind of 0.4kV low-voltage platform area Var Compensator in Country Electric Power system | |
| CN204270079U (en) | A kind of measure and control device become for photovoltaic case | |
| CN203968150U (en) | The long-range intensive management system of distributed energy | |
| CN103389421A (en) | Island detection method and device based on GOOSE communication | |
| CN108123467A (en) | A kind of adaptive droop control method of Multi-end flexible direct current transmission system DC voltage | |
| CN107134914A (en) | A kind of self-organizing electric energy router applied to low-voltage distribution terminal | |
| WO2017128787A1 (en) | Household photovoltaic system and smart micro-grid system | |
| CN203967762U (en) | A kind of novel intelligent photovoltaic generating system | |
| CN203761400U (en) | Central control communication chamber for photovoltaic power station measuring system | |
| CN205142215U (en) | HSR looped netowrk of communicating between communication device station between standing | |
| CN205725147U (en) | A kind of distribution type renewable energy intelligent station electricity system | |
| CN202435428U (en) | Communication network topological structure of combiner box system based on CAN (Controller Area Network) buses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |
|
| WD01 | Invention patent application deemed withdrawn after publication |