CN103928931B - 220kV piece network area voltage control starting method - Google Patents
220kV piece network area voltage control starting method Download PDFInfo
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- CN103928931B CN103928931B CN201410137611.0A CN201410137611A CN103928931B CN 103928931 B CN103928931 B CN 103928931B CN 201410137611 A CN201410137611 A CN 201410137611A CN 103928931 B CN103928931 B CN 103928931B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 206010003830 Automatism Diseases 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The present invention provides a 220? The voltage control starting method for the kV piece network area comprises the following steps: step 1, set the upper voltage limit of the zone?And lower limitControlling the predetermined starting timesOut-of-limit ratio default setting valueUpper limit of out-of-limit ratioAnd lower limitProportional regulating quantity of out-of-limit(ii) a Setting an out-of-limit proportional constant(ii) a Step 2, within the statistical area 110? Number of kV nodes110kV node voltage is greater thanNumber of (2)110kV node voltage is less thanNumber of (2)(ii) a Step 3, adjusting the out-of-limit ratio fixed value of the area voltage according to historical data(ii) a Step 4, judging theOrWhether the result is true or not; if yes, starting regional voltage control; if not, performing step 5; and 5, reporting the voltage state change condition of the 110kV node in the 220kV piece network region to a regional voltage control main station by the AVC substation of the 110kV transformer substation, wherein the regional voltage control main station reports the voltage state change condition of the 110kV node in the 220kV piece network region to the regional voltage control main station according to the voltage stateChange situation modificationAnd. The invention effectively solves the problem of unreasonable starting times of voltage control in the 220kV piece network area.
Description
Technical field
The present invention relates to a kind of technical field of electric power, particularly relate to a kind of 220kV sheet web area voltage control starting method.
Background technology
It is a kind of control area hinge plant stand voltage power-less equipment that region voltage controls, and corrects or optimize the voltage control method of bus colony voltage levvl in region.It can improve the global voltage level in region effectively, is a kind of pressure regulation means conventional in electric power system.
Region voltage controls generally to reach definite value as entry condition using region interior nodes voltage out-of-limit ratio, and prior art is using the definite value of this ratio as preset parameter, does not just adjust after setting, or once adjusts through a very long time again.The startup that this way easily causes region voltage to control is too frequent or rare.When the startup that region voltage controls is too frequent, hinge plant stand voltage power-less number of equipment action can be caused too much, be finally blocked; When the startup that region voltage controls is too rare, hinge plant stand voltage power-less utilization rate of equipment and installations can be caused low, its due regulating action can not be played, and, also may cause the voltage out-of-limit or equipment frequent switching for a long time of indivedual non-hinge plant stand.
Summary of the invention
The object of the invention is to solve the irrational problem of the 220kV sheet web area voltage control number of starts.
A kind of 220kV sheet web area voltage control starting method provided by the invention, comprising:
Step 1, arranges the upper voltage limit of 220kV sheet web area
and lower limit
, region voltage controls the predetermined number of starts
, region voltage out-of-limit ratio acquiescence definite value
, the region voltage out-of-limit ratio definite value upper limit
and lower limit
, out-of-limit proportion adjustment amount
; Setting area voltage out-of-limit ratio definite value
;
Step 2,110kV node number in statistics 220kV sheet web area
, 110kV node voltage is greater than
number
, 110kV node voltage is less than
number
;
Whether step 3, also do not carry out Set-value adjustment when judging whether system time is 0 the same day; If so, then according to historical data control band voltage out-of-limit ratio definite value
if without historical data, then do not regulate, carry out step 4; If not, carry out step 5;
Step 4, described in judgement
or
whether set up; If set up, then starting region voltage control, wait the scheduled time after control terminates, again add up
,
, return step 4; If be false, carry out step 5;
Step 5,110kV transformer station automatism voltage control (AutomaticVoltageControl, AVC) the voltage status situation of change of 110kV node in 220kV sheet web area reports to region voltage controlling center by substation, and region voltage controlling center is revised according to voltage status situation of change
with
, return step 3.
Wherein, described 220kV sheet web area is the regional power grid formed by a 220kV transformer station and all 110kV substations of being powered by this transformer station.
Wherein, described 220kV sheet web area upper voltage limit
and lower limit
in controlling at region voltage, be used for the standard judging that whether certain node voltage is too high or too low.
Wherein, the historical data in described step 3 is the out-of-limit ratio definite value of region voltage of previous working day or previous festivals or holidays
the actual number of starts is controlled with region voltage
, determine by the following method:
If the same day is working day, then historical data gets the out-of-limit ratio definite value of previous workaday region voltage
the actual number of starts is controlled with region voltage
;
If the same day is festivals or holidays, then historical data gets the out-of-limit ratio definite value of region voltage of previous festivals or holidays
the actual number of starts is controlled with region voltage
.
Wherein, described according to historical data control band voltage out-of-limit ratio definite value
, concrete methods of realizing is:
When
time, if
, then
, otherwise
constant;
When
time, if
, then
, otherwise
constant;
When
time,
constant.
Wherein, the voltage status situation of change in described step 5 refers to that voltage is in
with
between not out-of-limit state, voltage be greater than
more upper limit state, voltage be less than
more lower limit state.
Wherein, described region voltage controlling center is revised according to voltage status situation of change
with
, concrete methods of realizing is:
To each 110kV node in 220kV sheet web area,
If voltage initial condition is not out-of-limit state, the state after change is get over upper limit state, then
,
constant;
If voltage initial condition is not out-of-limit state, the state after change is get over lower limit state, then
it is constant,
;
If voltage initial condition is for getting over upper limit state, the state after change is not out-of-limit state, then
,
constant;
If voltage initial condition is for getting over upper limit state, the state after change is get over lower limit state, then
,
;
If voltage initial condition is for getting over lower limit state, the state after change is not out-of-limit state, then
it is constant,
;
If voltage initial condition is for getting over lower limit state, the state after change is get over upper limit state, then
,
.
Compared with prior art, beneficial effect of the present invention is:
(1) present invention efficiently solves the irrational problem of the 220kV sheet web area voltage control number of starts, make it start according to the predetermined number of starts, neither too frequent only in rareness;
(2) Set-value adjustment method proposed by the invention can Automatic adjusument, does not need manual intervention, can reduce the workload of adjustment definite value.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
See Fig. 1, it is the schematic flow sheet of 220kV sheet web area voltage control starting method provided by the invention.
Embodiment
See Fig. 1, a kind of 220kV sheet web area voltage control starting method provided by the invention, comprising:
Step 1, arranges the upper voltage limit of 220kV sheet web area
and lower limit
, region voltage controls the predetermined number of starts
, region voltage out-of-limit ratio acquiescence definite value
, the region voltage out-of-limit ratio definite value upper limit
and lower limit
, out-of-limit proportion adjustment amount
; Setting area voltage out-of-limit ratio definite value
;
Step 2,110kV node number in statistics 220kV sheet web area
, 110kV node voltage is greater than
number
, 110kV node voltage is less than
number
;
Whether step 3, also do not carry out Set-value adjustment when judging whether system time is 0 the same day; If so, then according to historical data control band voltage out-of-limit ratio definite value
if without historical data, then do not regulate, carry out step 4; If not, carry out step 4;
Step 4, described in judgement
or
whether set up; If set up, then starting region voltage control, wait the scheduled time after control terminates, such as 15 minutes, again add up
,
, return step 4; If be false, carry out step 5;
Step 5, the voltage status situation of change of 110kV node in 220kV sheet web area reports to region voltage controlling center by 110kV transformer station AVC substation, and region voltage controlling center is revised according to voltage status situation of change
with
, return step 3.
Wherein, described 220kV sheet web area is the regional power grid formed by a 220kV transformer station and all 110kV substations of being powered by this transformer station.
Wherein, described 220kV sheet web area upper voltage limit
and lower limit
in controlling at region voltage, be used for the standard judging that whether certain node voltage is too high or too low.
Wherein, the historical data in described step 3 is the out-of-limit ratio definite value of region voltage of previous working day or previous festivals or holidays
the actual number of starts is controlled with region voltage
, determine by the following method:
If the same day is working day, then historical data gets the out-of-limit ratio definite value of previous workaday region voltage
the actual number of starts is controlled with region voltage
;
If the same day is festivals or holidays, then historical data gets the out-of-limit ratio definite value of region voltage of previous festivals or holidays
the actual number of starts is controlled with region voltage
.
Wherein, described according to historical data control band voltage out-of-limit ratio definite value
, concrete methods of realizing is:
When
time, if
, then
, otherwise
constant;
When
time, if
, then
, otherwise
constant;
When
time,
constant.
Wherein, the voltage status situation of change in described step 6 refers to that voltage is in
with
between not out-of-limit state, voltage be greater than
more upper limit state, voltage be less than
more lower limit state.
Wherein, describedly to revise according to voltage status situation of change
with
, concrete methods of realizing is:
To each 110kV node in 220kV sheet web area,
If voltage initial condition is not out-of-limit state, the state after change is get over upper limit state, then
,
constant;
If voltage initial condition is not out-of-limit state, the state after change is get over lower limit state, then
it is constant,
;
If voltage initial condition is for getting over upper limit state, the state after change is not out-of-limit state, then
,
constant;
If voltage initial condition is for getting over upper limit state, the state after change is get over lower limit state, then
,
;
If voltage initial condition is for getting over lower limit state, the state after change is not out-of-limit state, then
it is constant,
;
If voltage initial condition is for getting over lower limit state, the state after change is get over upper limit state, then
,
.
Below for the regional power grid that 7 110kV substations of a 220kV transformer station and lower band thereof are formed.
The first step, 220kV sheet web area upper voltage limit
and lower limit
span be respectively 1.04 ~ 1.07,0.97 ~ 1.00, establish respectively
with
be 1.06 and 0.98; Region voltage controls the predetermined number of starts
span be 5 ~ 15, if
be 10; Region voltage out-of-limit ratio acquiescence definite value
, the region voltage out-of-limit ratio definite value upper limit
and lower limit
span be respectively 0.5 ~ 0.7,0.7 ~ 0.9 and 0.3 ~ 0.5, establish respectively
,
with
be 0.6,0.8 and 0.4; Out-of-limit proportion adjustment amount
span is 0.1 ~ 0.05, if
be 0.1; Setting area voltage out-of-limit ratio definite value
;
Second step, 110kV node number in statistics 220kV sheet web area
be that 8,110kV node voltage is greater than
number
be that 4,110kV node voltage is less than
number
be 0;
3rd step, also do not carry out Set-value adjustment the same day when judging whether system time is 0, the same day is working day, and previous workaday region voltage controls the actual number of starts is 6 (<
),
be 0.5, therefore, adjustment
be 0.4;
4th step, judges
(>
), therefore, starting region voltage control, waits 15 minutes after control terminates, again adds up
be 0,
be 0, return step (4), judge
(<
),
(<
) carry out step (5);
5th step, in 220kV sheet web area, a never out-of-limit state variation of 110kV node voltage is for getting over lower limit state, revises according to voltage status situation of change
be 1,
constant, return the 3rd step.Circulate according to this, repeat no more.
Implement the present invention, efficiently solve the irrational problem of the 220kV sheet web area voltage control number of starts, make it start according to the predetermined number of starts, neither too frequent only in rareness;
Set-value adjustment method proposed by the invention can Automatic adjusument, does not need manual intervention, can reduce the workload of adjustment definite value.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (7)
1. a 220kV sheet web area voltage control starting method, is characterized in that, comprising:
Step 1, arranges the upper voltage limit of 220kV sheet web area
and lower limit
, region voltage controls the predetermined number of starts
, region voltage out-of-limit ratio acquiescence definite value
, the region voltage out-of-limit ratio definite value upper limit
and lower limit
, out-of-limit proportion adjustment amount
; Setting area voltage out-of-limit ratio definite value
;
Step 2,110kV node number in statistics 220kV sheet web area
, 110kV node voltage is greater than
number
, 110kV node voltage is less than
number
;
Whether step 3, also do not carry out Set-value adjustment when judging whether system time is 0 the same day; If so, then according to historical data control band voltage out-of-limit ratio definite value
if without historical data, then do not regulate, carry out step 4; If not, carry out step 5;
Step 4, described in judgement
or
whether set up; If set up, then starting region voltage control, wait the scheduled time after control terminates, again add up
,
, return step 4; If be false, carry out step 5;
Step 5, the voltage status situation of change of 110kV node in 220kV sheet web area reports to region voltage controlling center by 110kV transformer station automatism voltage control AVC substation, and region voltage controlling center is revised according to voltage status situation of change
with
, return step 3.
2. 220kV sheet web area voltage control starting method as claimed in claim 1, is characterized in that, described 220kV sheet web area is the regional power grid formed by a 220kV transformer station and all 110kV substations of being powered by this transformer station.
3. 220kV sheet web area voltage control starting method as claimed in claim 2, is characterized in that, described 220kV sheet web area upper voltage limit
and lower limit
in controlling at region voltage, be used for the standard judging that whether certain node voltage is too high or too low.
4. 220kV sheet web area voltage control starting method as claimed in claim 3, it is characterized in that, the historical data in described step 3 is the out-of-limit ratio definite value of region voltage of previous working day or previous festivals or holidays
the actual number of starts is controlled with region voltage
, determine by the following method:
If the same day is working day, then historical data gets the out-of-limit ratio definite value of previous workaday region voltage
the actual number of starts is controlled with region voltage
;
If the same day is festivals or holidays, then historical data gets the out-of-limit ratio definite value of region voltage of previous festivals or holidays
the actual number of starts is controlled with region voltage
.
5. 220kV sheet web area voltage control starting method as claimed in claim 4, is characterized in that, described according to historical data control band voltage out-of-limit ratio definite value
, concrete methods of realizing is:
When
time, if
, then
, otherwise
constant;
When
time, if
, then
, otherwise
constant;
When
time,
constant.
6. 220kV sheet web area voltage control starting method as claimed in claim 5, it is characterized in that, the voltage status situation of change in described step 5 refers to that voltage is in
with
between not out-of-limit state, voltage be greater than
more upper limit state, voltage be less than
more lower limit state.
7. 220kV sheet web area voltage control starting method as claimed in claim 6, it is characterized in that, described region voltage controlling center is revised according to voltage status situation of change
with
, concrete methods of realizing is:
To each 110kV node in 220kV sheet web area,
If voltage initial condition is not out-of-limit state, the state after change is get over upper limit state, then
,
constant;
If voltage initial condition is not out-of-limit state, the state after change is get over lower limit state, then
it is constant,
;
If voltage initial condition is for getting over upper limit state, the state after change is not out-of-limit state, then
,
constant;
If voltage initial condition is for getting over upper limit state, the state after change is get over lower limit state, then
,
;
If voltage initial condition is for getting over lower limit state, the state after change is not out-of-limit state, then
it is constant,
;
If voltage initial condition is for getting over lower limit state, the state after change is get over upper limit state, then
,
.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410137611.0A CN103928931B (en) | 2014-04-08 | 2014-04-08 | 220kV piece network area voltage control starting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410137611.0A CN103928931B (en) | 2014-04-08 | 2014-04-08 | 220kV piece network area voltage control starting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103928931A CN103928931A (en) | 2014-07-16 |
| CN103928931B true CN103928931B (en) | 2016-02-03 |
Family
ID=51147058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410137611.0A Active CN103928931B (en) | 2014-04-08 | 2014-04-08 | 220kV piece network area voltage control starting method |
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Citations (6)
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-
2014
- 2014-04-08 CN CN201410137611.0A patent/CN103928931B/en active Active
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| JP2000267746A (en) * | 1999-03-16 | 2000-09-29 | Sadatada Ota | Voltage adjusting device |
| JP2003018748A (en) * | 2001-06-28 | 2003-01-17 | Toshiba Corp | Voltage reactive power monitoring control device and memory medium |
| CN101034813A (en) * | 2007-04-27 | 2007-09-12 | 清华大学 | Adjusting and control method for the loaded voltage-regulating transformer at the middle layer of the static mixed automatic voltage control |
| CN101710738A (en) * | 2009-12-09 | 2010-05-19 | 中国电力科学研究院 | Automatic voltage control system of power plant substation |
| JP2013255375A (en) * | 2012-06-08 | 2013-12-19 | Hitachi Ltd | Distribution grid voltage regulator, voltage regulation method, and power control system |
| CN103606928A (en) * | 2013-12-10 | 2014-02-26 | 山东电力工程咨询院有限公司 | Inverse-time-limit transformer substation voltage control method and device |
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| Title |
|---|
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| Publication number | Publication date |
|---|---|
| CN103928931A (en) | 2014-07-16 |
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