CN103872707B - A kind of extra-high voltage direct-current idle control function voltage effectiveness system of selection - Google Patents
A kind of extra-high voltage direct-current idle control function voltage effectiveness system of selection Download PDFInfo
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- CN103872707B CN103872707B CN201410102725.1A CN201410102725A CN103872707B CN 103872707 B CN103872707 B CN 103872707B CN 201410102725 A CN201410102725 A CN 201410102725A CN 103872707 B CN103872707 B CN 103872707B
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- voltage
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- big group
- selection
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- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010187 selection method Methods 0.000 claims 1
- 230000010485 coping Effects 0.000 abstract description 2
- 101100000595 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ACF4 gene Proteins 0.000 description 9
- 102100027310 Bromodomain adjacent to zinc finger domain protein 1A Human genes 0.000 description 5
- 101000937778 Homo sapiens Bromodomain adjacent to zinc finger domain protein 1A Proteins 0.000 description 5
- 101100172290 Candida albicans (strain SC5314 / ATCC MYA-2876) ENG1 gene Proteins 0.000 description 1
- 101100172294 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ACF2 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000009329 sexual behaviour Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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- Emergency Protection Circuit Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to a kind of extra-high voltage direct-current idle control function voltage effectiveness system of selection, belong to technical field of ultrahigh voltage direct current.First the present invention gathers the voltage of all big group of bus PT and is input to the control of direct current station, judge that each Group voltage is the most all in predetermined scope, think effective, do difference comparsion the most each other, difference also in certain scope, then selects one group of voltage therein as determining reference value according to certain priority orders.Idle control coping strategy under consideration alternating voltage falls extremely simultaneously, it is to avoid because the wave filter exception switching selecting incorrect busbar voltage to cause, cause the problem that ac grid voltage is too high.
Description
Technical field
The present invention relates to a kind of extra-high voltage direct-current idle control function voltage effectiveness system of selection, belong to extra-high voltage
Technical field of direct current power transmission.
Background technology
Idle control is moved back by controlling the throwing of converter station filter group, maintains current conversion station to exchange with AC system
Reactive power in allowed limits, simultaneously control harmonic content in rational scope.It addition, be configured with
Voltage limits and controls function, by the automatic switching of wave filter, it is ensured that alternating-current field busbar voltage is in certain scope.
Generally, current conversion station all configures big group of wave filter of organizing more, and selection limits for overvoltage and controls and without power control
The voltage reference value of U pattern processed needs to select, and uses the bus choosing 500kV alternating-current field bus I Yu II at present
PT voltage is input to the control of direct current station, selects one of them as mistake by certain priority and Effective judgement
Voltage-controlled determining reference value, the program has a problem in that general bus PT is single-phase type, and reliability is relatively
Low.
Summary of the invention
It is an object of the invention to provide a kind of extra-high voltage direct-current idle control function voltage effectiveness system of selection,
The problem low to solve current voltage effectiveness selection course reliability.
The present invention solves that above-mentioned technical problem provides a kind of extra-high voltage direct-current idle control function voltage effective
Sexual behavior mode method, the method comprises the following steps:
1) voltage of calculating current conversion station big group of bus PT of each wave filter, and the electricity to big group of each wave filter are gathered
Pressure carries out validity check, it is judged that each wave filter Group voltage is the most invalid；
2) by each mother by big group of busbar voltage of the wave filter of validity check Yu big group of other each wave filter
Line voltage compares, it is judged that whether the absolute value of its difference exceedes setting value；
3) if there being the busbar voltage of big group of wave filter to be not above setting value, then suitable according to the priority set
Sequence selects one group of voltage therein as determining reference value.
The standard that in described step 1), each wave filter Group voltage of judgement is invalid is that the TDM of big group of wave filter measures
Value fault or big group are in inspecting state.
Described step 2) in when the voltage of only big group of wave filter is effective, it is only necessary to judge that this wave filter is big
Whether group voltage is in the range of setting, if in set point, then using this group voltage as determining reference value.
Described step 2) in compare with the busbar voltage of big group of other each wave filter and to refer to respectively filter with other
Maximum and the minima of big group of median generatrix voltage of ripple device compare.
Described when big group of certain wave filter is at inspecting state, its bus voltage value is 0, and big group of this wave filter is not
Participate in minima again to select.
Described ought big group of only two wave filter in the state of input, remaining big group, when inspecting state, selects two
Maximum in Group voltage participates in logical process, to ensure reliably to start excision logic under overvoltage.
Described when the busbar voltage of big group of all wave filter is the most invalid, keep the voltage output selected last time, with
Avoid the problem that the wave filter selecting no-voltage output to cause all puts into.
Described when all wave filter Group voltages are 0, locking overvoltage limits and controls articulamentum with idle
Controlling the function putting into wave filter under U pattern, to avoid, the wave filter under this operating mode is abnormal to be put into.
The invention has the beneficial effects as follows: first the present invention gathers and judge that each Group voltage is the most all predetermined
In the range of, it is believed that effectively, doing difference comparsion the most each other, difference also in certain scope, is then pressed
Select one group of voltage therein as determining reference value according to certain priority orders 4-3-2-1.Consider to hand over simultaneously
Flow the idle control coping strategy under electric voltage exception falls, it is to avoid because selecting incorrect busbar voltage to cause
Wave filter exception switching, cause the problem that ac grid voltage is too high.
Accompanying drawing explanation
Fig. 1 is voltage ineffectivity decision logic flow chart in the embodiment of the present invention；
Fig. 2 is voltage over range decision logic flow chart in the embodiment of the present invention；
Fig. 3 is that in the embodiment of the present invention, voltage minimum selects logical flow chart.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is further described.
In this enforcement, in ultra-high voltage converter station, big group of the actual wave filter come into operation is ACF1 ∽ ACF4 tetra-,
The three-phase bus voltage of big group of ACF1 ∽ ACF4 of each wave filter is accessed by hardwire by corresponding PT central console
To direct current station Ore-controlling Role.The present invention organizes greatly number according to current conversion station alternating current filter reality, calculating of simultaneously sampling
The voltage of each big group of bus PT, in direct current station control software, the voltage to each big group is validity check (TDM
Measure normal and big group in the state of putting into operation) and difference range each other compare, if each big group of bus
Voltage measuring value all judges effectively, then select wave filter Group voltage as without power control according to the order of 4-3-2-1
U pattern processed and overvoltage limit the judgement voltage reference value controlled, and its detailed process is as follows:
1. gather the voltage calculating current conversion station big group of bus PT of each alternating current filter, and the voltage of each big group is entered
Row validity check, it is judged that each Group voltage is the most invalid.Its judge process is as shown in Figure 1, it is judged that ACF1 is big
Group busbar voltage, if this TDM of big group measures fault or ACF1 is in inspecting state, then explanation ACF1 voltage
Invalid (illegally), now UACF1=0；In like manner, it is judged that ACF2, ACF3 and ACF4 are the most effective.
2. each big group busbar voltage and other busbar voltage of big group by validity check is compared
Relatively, it is judged that each Group voltage whether over range, idiographic flow is as in figure 2 it is shown, we illustrate as a example by ACF4.
First judge whether that only ACF4 voltage is effective, if it is, judge U according to the result of step 1ACF4Whether more than 800KV
Or less than 300KV, work as UACF4During more than 800KV or little 300KV, ACF4 over range is described, if UACF4It is more than
300KV and less than 300KV time, then by UACF4Selected as reference voltage；When not only ACF4 voltage is effective, also deposit
When other ACF is effective, then judge UACF4Whether setting value is exceeded with the absolute value of other three ACF voltage differences,
Here setting value is 15KV, works as UACF4> MAX(U1, U2, U3), or UACF4< MIN(U1, U2, U3) time,
ACF4 over range is described, otherwise by UACF4Selected as reference voltage.Other each Group voltage whether over range
Judge as the judgement of ACF4, the most no longer to each illustrating.In order to improve the efficiency of selection,
Preferably judge each Group voltage whether over range according to set priority orders.
When big group of certain wave filter is at inspecting state, its bus voltage value is 0, for avoiding this value under this operating mode
Participating in minima validity check logic, thus cause range check invalid, this value selects to patrol in participation minima
800kV is switched to, it is meant that be no longer participate in minima and select, it is to avoid select the problem that logic is invalid before Ji.
It is 250kV when four wave filter Group voltages are the threshold value of 0(judgement, the biggest group of service entrance switch
Closing position, but the little sky of PT central console opening the operating mode of equal tripping) time, locking overvoltage limits and controls to connect
Layer (CONNECT) and the function putting into wave filter under idle control U pattern, can avoid under this operating mode
Wave filter abnormal put into.When the busbar voltage of big group of four wave filter is all illegal, (TDM measures fault or big
Group switch is separately) time, keep the voltage output selected last time, can avoid selecting no-voltage to export the filter caused
The problem that ripple device all puts into.When big group of only two wave filter are in the state of input, and two other big group in maintenance
During state, for ensureing the safety of equipment under overvoltage, the maximum in two Group voltages is selected to participate at logic
Reason, can reliably start excision logic under overvoltage.
Claims (6)
1. an extra-high voltage direct-current idle control function voltage effectiveness system of selection, it is characterised in that this choosing
Selection method comprises the following steps:
1) voltage of calculating current conversion station big group of bus PT of each wave filter, and the electricity to big group of each wave filter are gathered
Pressure carries out validity check, it is judged that each wave filter Group voltage is the most invalid；
2) by each mother by big group of busbar voltage of the wave filter of validity check Yu big group of other each wave filter
Line voltage compares, it is judged that whether the absolute value of its difference exceedes setting value, and described setting value is 15KV；
3) if there being the busbar voltage of big group of wave filter to be not above setting value, then suitable according to the priority set
Sequence selects one group of voltage therein as determining reference value；
When all wave filter Group voltages are 0, locking overvoltage limits and controls articulamentum and idle control U
The function putting into wave filter under pattern, to avoid, the wave filter under this operating mode is abnormal to be put into；
Described step 1) in the invalid standard of each wave filter Group voltage that judges be that the TDM of big group of wave filter measures
Value fault or big group are in inspecting state.
Control function voltage effectiveness system of selection that extra-high voltage direct-current the most according to claim 1 is idle, its
Be characterised by, described step 2) in when the voltage of only big group of wave filter is effective, it is only necessary to judge this filter
Whether ripple device Group voltage is in the range of setting, if in set point, then using this group voltage as judgement
Reference value.
Control function voltage effectiveness system of selection that extra-high voltage direct-current the most according to claim 1 is idle, its
Be characterised by, described step 2) in compare with the busbar voltage of big group of other each wave filter and to refer to and it
Maximum and the minima of its big group of median generatrix voltage of each wave filter compare.
Control function voltage effectiveness system of selection that extra-high voltage direct-current the most according to claim 3 is idle, its
Being characterised by, when big group of certain wave filter is at inspecting state, its bus voltage value is 0, big group of this wave filter
It is no longer participate in minima to select.
Control function voltage effectiveness system of selection that extra-high voltage direct-current the most according to claim 1 is idle,
It is characterized in that, when big group of only two wave filter are in the state of input, remaining big group, when inspecting state, selects
Maximum in two Group voltages participates in logical process, to ensure that reliably starting excision under overvoltage patrols
Volume.
Control function voltage effectiveness system of selection that extra-high voltage direct-current the most according to claim 1 is idle,
It is characterized in that, when the busbar voltage of big group of all wave filter is the most invalid, keep the voltage output selected last time,
With the problem avoiding the wave filter selecting no-voltage output to cause all to put into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410102725.1A CN103872707B (en) | 2014-03-19 | 2014-03-19 | A kind of extra-high voltage direct-current idle control function voltage effectiveness system of selection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410102725.1A CN103872707B (en) | 2014-03-19 | 2014-03-19 | A kind of extra-high voltage direct-current idle control function voltage effectiveness system of selection |
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| Publication Number | Publication Date |
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| CN103872707A CN103872707A (en) | 2014-06-18 |
| CN103872707B true CN103872707B (en) | 2016-10-12 |
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| CN201410102725.1A Expired - Fee Related CN103872707B (en) | 2014-03-19 | 2014-03-19 | A kind of extra-high voltage direct-current idle control function voltage effectiveness system of selection |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112103929B (en) * | 2020-09-24 | 2022-03-22 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Phase selection and switching-off method for AC filter of same-tower double-circuit DC converter station |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279325A (en) * | 2011-04-19 | 2011-12-14 | 中国电力科学研究院 | Ultra high voltage direct current (UHVDC) transmission engineering station system debugging method |
| CN103795064A (en) * | 2014-01-20 | 2014-05-14 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method and device for collecting and controlling alternating voltage in high-voltage direct current transmission project |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013027177A (en) * | 2011-07-21 | 2013-02-04 | Sumitomo Electric Ind Ltd | Electricity distribution system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279325A (en) * | 2011-04-19 | 2011-12-14 | 中国电力科学研究院 | Ultra high voltage direct current (UHVDC) transmission engineering station system debugging method |
| CN103795064A (en) * | 2014-01-20 | 2014-05-14 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method and device for collecting and controlling alternating voltage in high-voltage direct current transmission project |
Non-Patent Citations (2)
| Title |
|---|
| "特高压直流输电系统无功控制策略研究";戴国安等;《南方电网技术》;20080831;第2卷(第4期);51-54 * |
| "糯扎渡特高压直流输电工程无功控制测量研究";涂仁川等;《南方电网技术》;20131231;第7卷(第6期);31-36 * |
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Effective date of registration: 20160324 Address after: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Applicant after: XJ Group Corp. Applicant after: State Grid Corporation of China Applicant after: STATE GRID SHANXI ELECTRIC POWER Co. Applicant after: XJ ELECTRIC Co.,Ltd. Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Applicant before: XJ Group Corp. Applicant before: XJ ELECTRIC Co.,Ltd. Applicant before: State Grid Corporation of China |
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