CN207149982U - The safety interlock system of photovoltaic DC field - Google Patents
The safety interlock system of photovoltaic DC field Download PDFInfo
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- CN207149982U CN207149982U CN201720599106.7U CN201720599106U CN207149982U CN 207149982 U CN207149982 U CN 207149982U CN 201720599106 U CN201720599106 U CN 201720599106U CN 207149982 U CN207149982 U CN 207149982U
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Abstract
The safety interlock system of photovoltaic DC field, including：Computer management terminal, intelligent terminal and five anti-locksets, the five anti-lockset is arranged on the cabinet door of photovoltaic apparatus and the room door of box type transformer, the computer management terminal is communicated to connect with the intelligent terminal, and the intelligent terminal is unlocked according to the mission bit stream that computer management terminal transmits to the five anti-lockset.The utility model establishes safety interlock system between photovoltaic DC field Generation Side photovoltaic apparatus and box type transformation device, realize the forced blocking to photovoltaic power generation equipment cabinet door and the wagon door mechanism door of box-type substation, ensure that staff is correctly powered off before operation according to safety requirements, operation carried out according to the task of tour track, according to work ticket requirement order execution etc., to reach the purpose of security management and control.
Description
Technical field
The utility model belongs to security management and control system technical field, more specifically to a kind of safety of photovoltaic DC field
Interlock system.
Background technology
Solar energy is the inexhaustible regenerative resource of the mankind, because it has sufficient spatter property, absolute
The advantages that security, relative popularity, certain long-life and maintenance-free, the adequate of resource and potential economy,
There is critical role in long-term energy strategy.In order to ensure efficient, the stable operation of photovoltaic generating system and photovoltaic
The safety of component, daily tour, maintenance are necessary work.At present, it is main in photovoltaic DC field maintenance, tour operation process
Following operating risk be present：
1st, it is any to expand maintenance, make an inspection tour working range；
2nd, in the case where low-pressure section does not have a power failure, operation with high pressure room door is opened without authorization and carries out operation；
3rd, when A, B inverter are not stopped, low-pressure chamber door is opened without authorization and carries out the work in addition to measure and control device is checked；
4th, 35kV grounding knife of switch cabinet does not close or in the case that low-pressure chamber door, operation with high pressure door is not switched on, and just goes to open high
Pressure chamber door is operated；
5th, after low-pressure section has a power failure, the cabinet door of low-pressure chamber is locked not in time, maintainer be present and do not withdraw operation field
In the case of power transmission the problem of；
6th, before power transmission is completed in maintenance, examined without any measure to whether all cabinet doors of case change have shut
Look into；
7th, high-tension apparatus cabinet door is arbitrarily opened during tour, electric shock accidents easily occurs.
Situation above brings huge potential safety hazard to safety in production, therefore, how to avoid staff from being risen
The phenomenon for violation livewire work occur during the service works such as pressure station equipment, collection electric line, case change and expanding the scope of operation in violation of rules and regulations is mesh
Preceding urgent problem to be solved.
Utility model content
The purpose of this utility model is to provide a kind of safety interlock system of photovoltaic DC field, applied to photovoltaic generation sidecar body
The security management and control of overhaul of the equipments operation process, photovoltaic generation side in the security management and control of overhaul of the equipments operation process, box type transformer
Security management and control of tour process etc., staff's violation hot line job is prevented, avoids the generation of security incident.
To achieve these goals, the utility model takes following technical solution：
The safety interlock system of photovoltaic DC field, including：Computer management terminal, intelligent terminal and five anti-locksets, described five
Anti- lockset is arranged on the cabinet door of photovoltaic apparatus and the room door of box type transformer, and the computer management terminal and the intelligence are whole
End communication connection, the intelligent terminal solve according to the mission bit stream that computer management terminal transmits to the five anti-lockset
Lock.
More specifically, in addition to door state detection means, the door state detection means are arranged at the cabinet door of photovoltaic apparatus
And on the room door of box type transformer.
More specifically, it is anti-lock anti-lock with mandate five to include logic five for described five anti-locksets.
More specifically, described five anti-lock it is arranged in the cabinet door of inverter and/or header box.
More specifically, described five anti-locksets are anti-lock for mandate five.
More specifically, described five anti-locksets are arranged at hyperbaric chamber and/or low-pressure chamber and/or high-tension cable room and/or maintenance
On the room door of room and/or operation with high pressure room.
More specifically, described five anti-locksets are that logic five is anti-lock.
More specifically, the door state detection means is arranged at hyperbaric chamber room door and/or low-pressure chamber room door and/or high-tension electricity
On cable room room door and/or maintenance room room door and/or operation with high pressure room room door and/or inverter cabinet door and/or header box chamber door.
From above technical scheme, the utility model passes through on the room door of photovoltaic apparatus and the cabinet door of box type transformation device
Five anti-locksets are set, make photovoltaic apparatus and box type transformation device force to associate, by system software to each photovoltaic apparatus and box
Transformer equipment cabinet door carries out management and control according to pre-set operation logic, passes through graphic simulation upkeep operation safety measure
Correct operation, and corresponding electronic ticket is passed into intelligent terminal, operated in the correct order by intelligent terminal, Mei Yibu
Operation is all confirmed whether to meet operating condition or whether logical order is correct, so as to the effectively maintenance to photovoltaic generation side
Upkeep operation, the operating process such as work progress security management and control is maked an inspection tour, avoid the maloperation behavior of staff, cancel job process
In potential safety hazard.
Brief description of the drawings
, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of the utility model embodiment
The accompanying drawing used does simple introduction, it should be apparent that, drawings in the following description are only some embodiments of the utility model,
For those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Other accompanying drawings.
Fig. 1 is the block architecture diagram of the utility model embodiment.
Embodiment
As shown in figure 1, the safety interlock system of photovoltaic DC field of the present utility model includes computer management terminal 1, intelligence
Terminal 2, five anti-locksets 3, door state detection means 4.Five anti-locksets 3 are arranged at the cabinet door and box type transformer of photovoltaic apparatus
On the door of room.Specifically, five anti-locksets 3 may be disposed in the cabinet door of the photovoltaic apparatus such as the inverter of photovoltaic generation side, header box, with
And be arranged at hyperbaric chamber, low-pressure chamber, high-tension cable room, maintenance the room such as room and operation with high pressure room door on.By five anti-locksets 3 to light
Lie prostrate the cabinet door of equipment and the room door of box type transformer carries out pressure management and control, interlocking is implemented into both operations, to manage the side of door
Formula is managed to equipment, so that it is guaranteed that to the correct power outage security measure before the upkeep operation of photovoltaic DC field photovoltaic generation side.Enter
One step, there is provided latching accessories such as the also settable locking plates in the position of five anti-locksets, coordinate five anti-locksets using latching accessory
Use, all kinds of cabinet doors can not be opened after realizing forced blocking.
Computer management terminal 1 is prefixed microcomputer anti-misoperation system software general in the prior art, and five anti-locksets 2 can be entered
Row solution, lock operation, and customization operations logic rules according to the actual requirements.For example, become just can be with only under inspecting state for case
Gate is operated, authorizes door unrestricted；Specific operation logic rule includes but is not limited to：When maintenance door is opened,
Low-pressure chamber, operation with high pressure room door must be all off；When operation with high pressure room door is opened, low-pressure chamber door have to be off；Low-pressure chamber door
During disconnection, in addition to measure and control device is checked, other work have to be off A, B inverter door；It is coupled when hyperbaric chamber door disconnects
Switch cubicle must have a power failure, earthing knife-switch is closed, and low-pressure chamber door, hyperbaric chamber operation door disconnect.Case, which becomes cabinet door execute-in-place logic, to be included：
For photovoltaic panel -- header box 45V straight-flow systems, opening are confluxed after chamber door, to remove corresponding group string positive and negative electrode insurance；For
Header box -- inverter direct-flow side 500-1000V straight-flow systems, opening are confluxed after chamber door, to disconnect inverter and correspondingly organize direct current
Switch, removes all insurances of header box；Overhauled for inverter, after opening inverter cabinet door, to remove all header boxs and protect
Danger, disconnect inverter direct-flow side switch, inverter ac side switch, case low pressure side 315V switches；Become for case and overhaul, open
After A and B inverter cabinet doors, to disconnect inverter direct-flow side switch, inverter ac side switch, case low pressure side 315V switch and
35KV (or 10KV) switches etc. in standing.Operation logic rule can be changed, delete or increased according to on-site actual situations and demand,
Accomplish the safety management of sequencing, standardization, systematization, realize that logic rules may customize.
Microcomputer anti-misoperation system software can become cabinet door operation task to case and be managed, for example a task can only operate one
The cabinet door that individual case becomes, gate, door is authorized to be mixed；One case, which becomes, can multiple tasks, but cabinet door can not be in office
Intersect in business and exist；Case becomes component corresponding to being automatically switched in the case of multitask after selection task；Include low pressure in task
During the door operation of room, the final step of task must be low-pressure chamber door (power transmission, shutdown).System software may also display every group of photovoltaic electric
The states such as the operation in pond, maintenance, stoppage in transit, every group of photovoltaic cell all have a respective photovoltaic apparatus cabinet door account management, including with
The gate of operation logic order and the mandate door without operation order, show the state of each door；And can be in systems to light
The maintenance maintenance work ticket of volt Generation Side carries out graphic simulation and made out an invoice, according to correct operation order in corresponding photovoltaic battery pack point
Appliance doors in figure carry out the simulation of safety measure implementation, operation electronic ticket corresponding to generation after simulation is correct.
Computer management terminal 1 is communicated by network or point-to-point mode with intelligent terminal 2, to intelligent terminal
2 transmission tasks information, so as to which staff can be unlocked by intelligent terminal 2 to five anti-locksets 2.Intelligent terminal 2 can be intelligence
Energy mobile phone, tablet personal computer etc., operation logic rule is prefixed in intelligent terminal 2.Computer management terminal 1 generates corresponding operation
Operation order is passed in intelligent terminal 2 after ticket, staff goes to photovoltaic generation side to perform operation, intelligence using intelligent terminal 2
Terminal 2 is unlocked operation according to correct logical order according to electronic ticket content to the appliance doors at scene, for wrong sequence
Operation will not unlock, with this realize to site examining and repairing make an inspection tour job safety pressure management and control.
Five anti-locksets 3 are anti-lock anti-lock with mandate five including logic five, and logic five is anti-lock by setting specific operation logic
To control whether to open, could be opened when only meeting operation logic.Authorize five it is anti-lock need to through mandate could open, without
Logical operation.More specifically, logic five is anti-lock is arranged at hyperbaric chamber, low-pressure chamber, high-tension cable room, maintenance room and operation with high pressure room
Room door on.Five are authorized anti-lock to be arranged on inverter cabinet door (A, B cabinet cabinet door) and header box chamber door.As of the present utility model
One preferred embodiment, in hyperbaric chamber, low-pressure chamber, high-tension cable room, the room door or inverter cabinet for overhauling room, operation with high pressure room
Door state detection means 4 is provided with door, header box chamber door, verifies the position of door after unblock by door state detection means 4
Whether state is correct, avoids away the hidden danger of idle running.
Below by taking upkeep operation as an example, the course of work of the utility model safety interlock system is illustrated：
The operation order of generation is transferred to intelligent terminal 2 by computer management terminal 1, before staff carries intelligent terminal 2
Toward operation field；
During operation order (work ticket) performs, staff needs to pass through according to default logical requirements and order
Intelligent terminal 2 is operated, and the system software built in intelligent terminal 2 carries out logic judgment to every single stepping simultaneously, only presses
Next step operation could be carried out according to correct operation order or correct measure with high safety afterwards；Therefore, to photovoltaic apparatus
When cabinet or box type transformer overhaul, it is necessary to first unlock corresponding five anti-lockset 3 on box type transformer, operation equipment is broken
After electricity, photovoltaic apparatus cabinet door can be opened or open the room door progress upkeep operation of box type transformer, by being arranged at case
The interlock mechanism formed between five anti-locksets on the room door of formula transformer and five anti-locksets being arranged in photovoltaic apparatus cabinet door, keeps away
Exempt from that safety problem occurs because maintenance operation maintenance personnel carries out one-sided faulty operation to photovoltaic apparatus or box type transformer equipment.
Equally during tour, it is also necessary to the cabinet door or room door of low pressure side apparatus are first unlocked by intelligent terminal, is pressed
It is required that the equipment to be maked an inspection tour could be unlocked after being powered off, ensure human users' safety during making an inspection tour with this.
The utility model establishes safety interlock system between photovoltaic DC field Generation Side photovoltaic apparatus and box type transformation device, real
Now to the forced blocking of photovoltaic power generation equipment cabinet door and the wagon door mechanism door of box-type substation, ensure that staff will according to safety
Ask and correctly powered off before operation, carry out operation, performed according to work ticket requirement order etc. according to making an inspection tour task track, with
Reach the purpose of security management and control.
Above example is only to illustrate the technical solution of the utility model rather than its limitations, although with reference to above-mentioned implementation
The utility model is described in detail example, it should be understood by a person of ordinary skill in the art that still can be to this reality
Modified with new embodiment or equivalent substitution, and repaiied without departing from any of the spirit and scope of the utility model
Change or equivalent substitution, it all should cover among right of the present utility model.
Claims (8)
1. the safety interlock system of photovoltaic DC field, it is characterised in that including：Computer management terminal, intelligent terminal and five are anti-lock
Tool, the five anti-lockset is arranged on the cabinet door of photovoltaic apparatus and the room door of box type transformer, the computer management terminal with
The intelligent terminal communication connection, the intelligent terminal are anti-lock to described five according to the mission bit stream that computer management terminal transmits
Tool is unlocked.
2. the safety interlock system of photovoltaic DC field as claimed in claim 1, it is characterised in that：Also include door state detection dress
Put, the door state detection means is arranged on the cabinet door of photovoltaic apparatus and the room door of box type transformer.
3. the safety interlock system of photovoltaic DC field as claimed in claim 1 or 2, it is characterised in that：The five anti-lockset includes
Logic five is anti-lock and mandate five is anti-lock.
4. the safety interlock system of photovoltaic DC field as claimed in claim 1 or 2, it is characterised in that：The five anti-lockset is set
In the cabinet door of inverter and/or header box.
5. the safety interlock system of photovoltaic DC field as claimed in claim 4, it is characterised in that：The five anti-lockset is mandate five
It is anti-lock.
6. the safety interlock system of photovoltaic DC field as claimed in claim 1 or 2, it is characterised in that：The five anti-lockset is set
In on hyperbaric chamber and/or low-pressure chamber and/or high-tension cable room and/or the room door of maintenance room and/or operation with high pressure room.
7. the safety interlock system of photovoltaic DC field as claimed in claim 6, it is characterised in that：The five anti-lockset is logic five
It is anti-lock.
8. the safety interlock system of photovoltaic DC field as claimed in claim 2, it is characterised in that：The door state detection means is set
It is placed in hyperbaric chamber room door and/or low-pressure chamber room door and/or high-tension cable room room door and/or maintenance room room door and/or operation with high pressure
In room room door and/or inverter cabinet door and/or header box chamber door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720599106.7U CN207149982U (en) | 2017-05-25 | 2017-05-25 | The safety interlock system of photovoltaic DC field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720599106.7U CN207149982U (en) | 2017-05-25 | 2017-05-25 | The safety interlock system of photovoltaic DC field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207149982U true CN207149982U (en) | 2018-03-27 |
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ID=61659555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720599106.7U Active CN207149982U (en) | 2017-05-25 | 2017-05-25 | The safety interlock system of photovoltaic DC field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207149982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113472872A (en) * | 2021-06-25 | 2021-10-01 | 华能国际电力股份有限公司上安电厂 | System for off-line high-voltage electrical equipment practical operation and maintenance |
-
2017
- 2017-05-25 CN CN201720599106.7U patent/CN207149982U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113472872A (en) * | 2021-06-25 | 2021-10-01 | 华能国际电力股份有限公司上安电厂 | System for off-line high-voltage electrical equipment practical operation and maintenance |
| CN113472872B (en) * | 2021-06-25 | 2023-06-16 | 华能国际电力股份有限公司上安电厂 | System for be used for off-line high-voltage electrical equipment to really operate and overhaul |
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