CN108536042A - A kind of HVDC transmission system alternating-current field sequence control method and device - Google Patents
A kind of HVDC transmission system alternating-current field sequence control method and device Download PDFInfo
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- CN108536042A CN108536042A CN201810260053.5A CN201810260053A CN108536042A CN 108536042 A CN108536042 A CN 108536042A CN 201810260053 A CN201810260053 A CN 201810260053A CN 108536042 A CN108536042 A CN 108536042A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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Abstract
The present invention relates to a kind of HVDC transmission system alternating-current field sequence control method and device, the different situations of present invention combination current conversion station actual motion determine the split order status relationship for putting row sequential control into.When alternating-current field carries out grid switching operation, according to the practical grid switching operation situation and order status relationship of alternating-current field, the state of switch is acquired and is controlled, so that all switches are acted according to the sequence of movement that sets, action state.The present invention is a kind of autocontrol method can effectively reduce human error, reduce security risk, improve operating efficiency relative to manual control, to increase the security and stability of current conversion station operation, have great engineer application promotional value.
Description
Technical field
The invention belongs to technical field of HVDC transmission, and in particular to a kind of HVDC transmission system exchange field sequence
Control method and device.
Background technology
High voltage substation is the use distribution hinge of an industrial enterprise, its normal operation is to safety in production and equipment safety
Play conclusive effect.Due to various needs, for example, annual overhaul, breaking down, it can usually encounter and need grid switching operation
The case where.Grid switching operation refers to the system that electrical equipment or electric system are changed into another operating status by a kind of operating status
Show the operation of sequence.
Currently, in conventional high-pressure DC transmission engineering, extra-high voltage direct-current engineering and back-to-back engineering, alternating-current field back brake behaviour
Work is to manually perform, exchange string operation, it is hot standby, maintenance transfer process in, be related to all earthing knife-switch, every knife, breaker by behaviour
Make personnel and completion is manually operated one by one.This is just especially high to the requirement of operating personnel.When the electricity to back brake of grid switching operation personnel
When network operation mode changes that unclear, technical merit is poor, it is likely that mistake occur during back brake, even highly skilled
Operating personnel, cannot guarantee that every time operation it is all errorless.Moreover, manual operation inevitably causes ineffective ask
Topic.
Invention content
The purpose of the present invention is to provide a kind of HVDC transmission system alternating-current field sequence control method and device, to
It solves the problems, such as using manual type come error-prone caused by when carrying out grid switching operation, efficiency is low.
In order to solve the above technical problems, the technical scheme is that：
The present invention provides a kind of HVDC transmission system alternating-current field sequence control methods, including following method scheme：
Method scheme one, includes the following steps：
According to the different situations of current conversion station actual motion, order status relationship is determined；The order status relationship includes
It is corresponding under the set action sequence and the set action sequence each switched corresponding with the grid switching operation situation of alternating-current field
The set action state each switched；The switch includes earthing knife-switch, every knife and breaker；
When alternating-current field carries out grid switching operation, closed according to the practical grid switching operation situation of alternating-current field and the order status
System obtains the set action sequence each switched corresponding with the practical grid switching operation situation of alternating-current field and set action sequence
The set action state each switched down；According to the set action sequence each switched, the virtual condition of switch is carried out
Detection, and judge whether the virtual condition of switch and the set action state of the switch meet：If not meeting, the switch is controlled
According to the set action state action of the switch；If meeting, according to the set action sequence each switched, open next
The virtual condition of pass is detected and judges.
Method scheme two, on the basis of method scheme one, the alternating-current field grid switching operation situation includes：Conversion is extremely run
State, conversion to hot standby state, conversion to inspecting state.
Method scheme three, on the basis of method scheme two, when converting to operating status, the breaker on an exchange string
Set action state be to be closed, be to be closed every the set action state of knife, the set action state of earthing knife-switch is to open.
Method scheme four, on the basis of method scheme two, when converting to hot standby state, on an exchange string every knife
Set action state is to be closed, and the set action state of breaker is to open, and the set action state of earthing knife-switch is to open.
Method scheme five, on the basis of method scheme two, when converting to inspecting state, the breaker on an exchange string
Set action state be to open, be to open every the set action state of knife, the set action state of earthing knife-switch is to be closed.
Method scheme six, on the basis of method scheme two, if judging virtual condition and operation, the hot standby and inspection of exchange string
Three's state is repaiied not to be consistent, by manually control will exchange string operation to three kinds of states any one.
The present invention also provides a kind of HVDC transmission system alternating-current field order controllers, including following device side
Case：
Device scheme one, including processor, the processor realize following method for executing instruction：
According to the different situations of current conversion station actual motion, order status relationship is determined；The order status relationship includes
It is corresponding under the set action sequence and the set action sequence each switched corresponding with the grid switching operation situation of alternating-current field
The set action state each switched；The switch includes earthing knife-switch, every knife and breaker；
When alternating-current field carries out grid switching operation, closed according to the practical grid switching operation situation of alternating-current field and the order status
System obtains the set action sequence each switched corresponding with the practical grid switching operation situation of alternating-current field and set action sequence
The set action state each switched down；According to the set action sequence each switched, the virtual condition of switch is carried out
Detection, and judge whether the virtual condition of switch and the set action state of the switch meet：If not meeting, the switch is controlled
According to the set action state action of the switch；If meeting, according to the set action sequence each switched, open next
The virtual condition of pass is detected and judges.
Device scheme two, on the basis of device scheme one, the alternating-current field grid switching operation situation includes：Conversion is extremely run
State, conversion to hot standby state, conversion to inspecting state.
Device scheme three, on the basis of device scheme two, when converting to operating status, the breaker on an exchange string
Set action state be to be closed, be to be closed every the set action state of knife, the set action state of earthing knife-switch is to open.
Device scheme four, on the basis of device scheme two, when converting to hot standby state, on an exchange string every knife
Set action state is to be closed, and the set action state of breaker is to open, and the set action state of earthing knife-switch is to open.
Device scheme five, on the basis of device scheme two, when converting to inspecting state, the breaker on an exchange string
Set action state be to open, be to open every the set action state of knife, the set action state of earthing knife-switch is to be closed.
Device scheme six, on the basis of device scheme two, if judging virtual condition and operation, the hot standby and inspection of exchange string
Three's state is repaiied not to be consistent, by manually control will exchange string operation to three kinds of states any one.
Beneficial effects of the present invention：
The different situations of present invention combination current conversion station actual motion, determine the split order status for putting row sequential control into
Relationship.It is split according to the practical grid switching operation situation and order status relationship of alternating-current field when alternating-current field carries out grid switching operation
The state of pass is acquired and controls, so that all switches are acted according to the sequence of movement that sets, action state.This
Invention is a kind of autocontrol method can effectively reduce human error, reduce security risk, carry relative to manual control
High operating efficiency has great engineer application promotional value to increase the security and stability of current conversion station operation.
Description of the drawings
Fig. 1 is the HVDC transmission system alternating-current field sequential control operating process schematic diagram of the present invention；
Fig. 2 is the HVDC transmission system state transition diagram of the present invention.
Specific implementation mode
In order to realize the sequential control to HVDC transmission system alternating-current field, the present invention provides a kind of device, the dresses
It sets including processor, processor is used to execute instruction the HVDC transmission system alternating-current field sequential control side for realizing the present invention
Method.
Alternating-current field grid switching operation includes three kinds of states, respectively operating status, hot standby state and inspecting state, these three shapes
It can arbitrarily be converted between state, and the process that this is converted is just into grid switching operation situation.As shown in Fig. 2, the direction of arrow is in figure
For the process of state conversion.But the conversion of state can only carry out step by step, cannot bypass the immediate leadership progress.For example, it is desired to from operating status
Can only be first hot standby state from running state conversion, then inspecting state is converted to from hot standby state when being converted to inspecting state, and
Cannot be directly inspecting state from running state conversion.
Alternating-current field carry out grid switching operation when, i.e., during carrying out state conversion, need exchange string on switch by
According to the sequence of movement action of setting.Here switch, including breaker, every knife and earthing knife-switch.
When being converted to operating status, need the upper all breakers of an exchange string, every knife be closed state, it is all
Earthing knife-switch is in an open state；When being converted to hot standby state, need one exchange string on it is all be in closed state every knife,
All breakers are in opening state, and all earthing knife-switch are in opening state；When being converted to inspecting state, one is needed
It exchanges all breakers on string, be in opening state every knife, all earthing knife-switch are in closed state.
The whole concept of this method is：When alternating-current field carries out grid switching operation, according to the sequence of movement of the switch determined
And the action state of switch, carry out detection switch and controls switch.
Now by taking high-voltage direct current shown in FIG. 1 as an example, to illustrate the HVDC transmission system exchange of the present invention
Field sequence control method.
Switch involved in the system includes：Earthing knife-switch Q21, earthing knife-switch Q22, earthing knife-switch Q23, earthing knife-switch Q24, earthing knife-switch Q25, earthing knife-switch
Q26 and earthing knife-switch Q27, every knife Q11, every knife Q12, every knife Q13, every knife Q14, every knife Q15 and every knife Q16, circuit breaker Q 1, breaker
Q2 and circuit breaker Q 3.
First, according to the actual operating state of current conversion station, order status relationship is determined.The order status relationship is " exchange
The set action state of the set action sequence-switch of grid switching operation situation-switch of field ", shows in a tabular form below
The order status relationship, as shown in table 1." the set action sequence of switch " viewed from above in table 1, the switch as needed
Sequence of movement.For example, when being converted to operating status from hot standby state, needs first close circuit breaker Q1, recloses circuit breaker Q 2, again
Close circuit breaker Q3, could completion status conversion.
Table 1
It can also be seen that, " hot standby → maintenance " is the inverse process of " maintenance → hot standby " from table 1, and " operation → hot standby " is " heat
The inverse process of standby → operation ".
In addition, when being transformed into operating status from inspecting state, need first to be transformed into hot standby state from inspecting state, then from
Hot standby state is transformed into operating status.And it is transformed into hot standby state from inspecting state, is transformed into operating status from hot standby state
The set action sequence for the switch being related to and the set action state of corresponding switch have been given in Table 1, therefore no longer in table
In 1 show " maintenance → operation ", " operation → maintenance " the two alternating-current fields grid switching operation situation corresponding to switch setting
The set action state of action state and corresponding switch.
Then, it is the serial control number of each one sequential control of state assignment, meanwhile, it is falling for each alternating-current field
Under lock operating conditions, the sequential control of a sequential control is respectively distributed according to the set action state of the switch of set action sequence
Number.Wherein, operating status is assigned as Step NO.100, and hot standby state assignment is Step NO.200, and inspecting state is assigned as
Step NO.300.In conjunction with " maintenance → hot standby ", " hot standby → operation " two kinds of situations, to the set action state of each switch
A serial control number is distributed, as shown in table 2.
Table 2
Then, alternating-current field carry out grid switching operation when, can according to the practical operation situation and table 1,2 of alternating-current field back brake,
It obtains under the set action sequence and the set action sequence each switched corresponding with the practical operation situation of alternating-current field back brake
The set action state each switched.According to the set action sequence of each switch, the virtual condition of switch is detected, and
Whether the virtual condition and the set action state of the switch for judging switch meet：If not meeting, the switch is controlled according to this
The set action state action of switch.
For example, when the practical operation situation of alternating-current field back brake is " maintenance → hot standby "：
First, it is determined that whether earthing knife-switch Q21 meets serial control number Step No:The shape of 105 corresponding " earthing knife-switch Q21 is opened "
State：If earthing knife-switch Q21 is closed state at this time, it is unsatisfactory for serial control number Step No:105, then issue a point order of earthing knife-switch Q21.
Only after earthing knife-switch Q21 isloation states return, meet serial control number Step No:When " Q21 openings " state corresponding to 105, after
It is continuous to execute the state for judging earthing knife-switch Q22.
And so on, judge that the state of earthing knife-switch Q22 meets Step No successively:110 corresponding states, the state of earthing knife-switch Q27
Meet Step No:The state of 115 corresponding states, earthing knife-switch Q23 meets Step No:120 corresponding states, the shape of earthing knife-switch Q24
State meets Step No:The state of 125 corresponding states, earthing knife-switch Q28 meets Step No:130 corresponding states, earthing knife-switch Q25's
State meets Step No:The state of 135 corresponding states, earthing knife-switch Q26 meets Step No:When 140 corresponding state, then judge
All earthing knife-switch meet the action state requirement of setting.
Wherein, in sequential control implementation procedure, if a certain step is because of control loop, operating mechanism, Switch main body failure etc.
Reason is not completed, then is back under a control sequence.After troubleshooting, automatic sequence control may be selected and also may be selected
Manual mode is completed.
Then, sequence judges whether meet serial control number Step No every knife Q11:145 corresponding " being closed every knife Q11 "
State：If this is in an open state after knife Q11, it is unsatisfactory for serial control number Step No:145, then conjunction is issued every knife Q11's
Order.Only after being returned every knife Q11 conjunction states, meet serial control number No:" being closed every knife Q11 " state corresponding to 145
When, continue to execute the state judged every knife Q12.
And so on, judge that the state every knife Q12 meets Step No successively:150 corresponding states, every the state of knife Q13
Meet Step No:155 corresponding states meet Step No every the state of knife Q14:160 corresponding states, every the shape of knife Q15
State meets Step No:165 corresponding states meet Step No every the state of knife Q16:170 corresponding states then judge all
Every knife meet setting action state requirement.
So far, conversion of the alternating-current field by inspecting state to hot standby state can be completed.
Claims (10)
1. a kind of HVDC transmission system alternating-current field sequence control method, which is characterized in that include the following steps：
According to the different situations of current conversion station actual motion, order status relationship is determined；The order status relationship includes and friendship
It is corresponding each under the corresponding set action sequence and the set action sequence each switched of the grid switching operation situation in flow field
The set action state of switch；The switch includes earthing knife-switch, every knife and breaker；
When alternating-current field carries out grid switching operation, according to the practical grid switching operation situation of alternating-current field and the order status relationship, obtain
It is every under to the set action sequence and the set action sequence each switched corresponding with the practical grid switching operation situation of alternating-current field
The set action state of a switch；According to the set action sequence each switched, the virtual condition of switch is detected,
And judge whether the virtual condition of switch and the set action state of the switch meet：If not meeting, control the switch according to
The set action state action of the switch；If meeting, according to the set action sequence each switched, to next switch
Virtual condition is detected and judges.
2. HVDC transmission system alternating-current field sequence control method according to claim 1, which is characterized in that the friendship
Flow field grid switching operation situation includes：Conversion to operating status, conversion to hot standby state is converted to inspecting state.
3. HVDC transmission system alternating-current field sequence control method according to claim 2, which is characterized in that conversion is extremely
When operating status, one exchange string on breaker set action state be closed, every knife set action state be closed,
The set action state of earthing knife-switch is to open.
4. HVDC transmission system alternating-current field sequence control method according to claim 2, which is characterized in that conversion is extremely
When hot standby state, the set action state every knife on an exchange string is to be closed, and the set action state of breaker is to open,
The set action state of earthing knife-switch is to open.
5. HVDC transmission system alternating-current field sequence control method according to claim 2, which is characterized in that conversion is extremely
When inspecting state, one exchange string on breaker set action state be open, every knife set action state be open,
The set action state of earthing knife-switch is to be closed.
6. HVDC transmission system alternating-current field sequence control method according to claim 2, which is characterized in that if judging
The virtual condition for exchanging string is not consistent with operation, hot standby and maintenance three's state, and string operation will be exchanged by manually controlling
To any one of three kinds of states.
7. a kind of HVDC transmission system alternating-current field order controller, which is characterized in that including processor, the processor
Following method is realized for executing instruction：
According to the different situations of current conversion station actual motion, order status relationship is determined；The order status relationship includes and friendship
It is corresponding each under the corresponding set action sequence and the set action sequence each switched of the grid switching operation situation in flow field
The set action state of switch；The switch includes earthing knife-switch, every knife and breaker；
When alternating-current field carries out grid switching operation, according to the practical grid switching operation situation of alternating-current field and the order status relationship, obtain
It is every under to the set action sequence and the set action sequence each switched corresponding with the practical grid switching operation situation of alternating-current field
The set action state of a switch；According to the set action sequence each switched, the virtual condition of switch is detected,
And judge whether the virtual condition of switch and the set action state of the switch meet：If not meeting, control the switch according to
The set action state action of the switch；If meeting, according to the set action sequence each switched, to next switch
Virtual condition is detected and judges.
8. HVDC transmission system alternating-current field order controller according to claim 7, which is characterized in that the friendship
Flow field grid switching operation situation includes：Conversion to operating status, conversion to hot standby state is converted to inspecting state.
9. HVDC transmission system alternating-current field order controller according to claim 8, which is characterized in that conversion is extremely
When operating status, one exchange string on breaker set action state be closed, every knife set action state be closed,
The set action state of earthing knife-switch is to open.
10. HVDC transmission system alternating-current field order controller according to claim 8, which is characterized in that conversion
When to hot standby state, the set action state every knife on an exchange string is to be closed, and the set action state of breaker is to beat
It opens, the set action state of earthing knife-switch is to open.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552623A (en) * | 2022-03-04 | 2022-05-27 | 广东电网有限责任公司广州供电局 | Sequence control failure tripping method, device, equipment and medium applied to flexible direct current transmission |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255392A (en) * | 2011-07-30 | 2011-11-23 | 山东电力研究院 | Method for controlling switching operation sequences of full-automatic transformer substation based on mobile robot |
| CN104993582A (en) * | 2015-01-27 | 2015-10-21 | 卢洁 | Electric power system control method and apparatus |
| CN105334789A (en) * | 2015-11-30 | 2016-02-17 | 江苏省电力公司苏州供电公司 | Switching operation monitoring system for power distribution station |
| CN105356619A (en) * | 2015-12-10 | 2016-02-24 | 国网四川省电力公司天府新区供电公司 | Anti-misoperation method for transformer station based image recognition |
| CN105634129A (en) * | 2016-01-27 | 2016-06-01 | 云南电网有限责任公司电力科学研究院 | Sequence control method for intelligent substation |
-
2018
- 2018-03-27 CN CN201810260053.5A patent/CN108536042A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255392A (en) * | 2011-07-30 | 2011-11-23 | 山东电力研究院 | Method for controlling switching operation sequences of full-automatic transformer substation based on mobile robot |
| CN104993582A (en) * | 2015-01-27 | 2015-10-21 | 卢洁 | Electric power system control method and apparatus |
| CN105334789A (en) * | 2015-11-30 | 2016-02-17 | 江苏省电力公司苏州供电公司 | Switching operation monitoring system for power distribution station |
| CN105356619A (en) * | 2015-12-10 | 2016-02-24 | 国网四川省电力公司天府新区供电公司 | Anti-misoperation method for transformer station based image recognition |
| CN105634129A (en) * | 2016-01-27 | 2016-06-01 | 云南电网有限责任公司电力科学研究院 | Sequence control method for intelligent substation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552623A (en) * | 2022-03-04 | 2022-05-27 | 广东电网有限责任公司广州供电局 | Sequence control failure tripping method, device, equipment and medium applied to flexible direct current transmission |
| CN114552623B (en) * | 2022-03-04 | 2023-06-20 | 广东电网有限责任公司广州供电局 | Sequential control failure tripping method, device, equipment and medium applied to flexible direct current transmission |
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