CN105958553B - A kind of active pulse regulation systems of Hydropower Plant LCU - Google Patents
A kind of active pulse regulation systems of Hydropower Plant LCU Download PDFInfo
- Publication number
- CN105958553B CN105958553B CN201610327273.6A CN201610327273A CN105958553B CN 105958553 B CN105958553 B CN 105958553B CN 201610327273 A CN201610327273 A CN 201610327273A CN 105958553 B CN105958553 B CN 105958553B
- Authority
- CN
- China
- Prior art keywords
- active
- power
- value
- regulation
- pulse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/50—Controlling the sharing of the out-of-phase component
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses a kind of active pulse regulation systems of Hydropower Plant LCU, including obtaining the active desired value module of unit, obtaining power regulation mode module, interpolation algorithm acquisition aperture pattern initial value module, corrects proportional algorithm and obtain adjusting pulsewidth module, the active monitoring module of unit.The present invention uses interpolation algorithm according to power station change of water level, calculates aperture pattern initial value, including the current active real hair value of unit, active desired value, adjusting dead band value and pulse regulation Proportional coefficient K value, power pulse width is calculated with proportional algorithm is corrected.Hydropower Plant LCU active power pulse regulation regulating systems are put forward for the first time, large hydropower station monitoring system adjusting Rapid Stability active to unit and reliability requirement are met.
Description
Technical field
A kind of active pulse regulation systems of Hydropower Plant LCU of the present invention, belong to computer supervisory control system field.
Background technology
Currently, adjusting side of the active power regulation system of computer supervisory control system LCU for generator set to the power of the assembling unit
Formula is divided into active analog input pattern, active analog quantity pulse mode and active aperture regulation pattern.The active simulation of LCU for generator set
Amount gives mode tuning algorithm and simply unifies, and is all made of direct analog output mode；The active pulse mode of LCU for generator set and active
Aperture regulation mode tuning algorithm is more complex, and reliability is unable to get good guarantee in use.
Present invention firstly provides the active pulse regulation systems of Hydropower Plant LCU, and head, power are established with interpolation algorithm
With aperture model to solve to be led to power and aperture functional relation uncertain problem by change of water level under aperture regulation pattern, fortune
Power is established with pulse width function model to meet large hydropower station monitoring system to the active tune of unit with amendment proportional algorithm
Save Rapid Stability and reliability requirement.
Invention content
The present invention provides a kind of active pulse regulation systems of Hydropower Plant LCU, solves power under aperture regulation pattern
Led to power and aperture functional relation uncertain problem by change of water level, establishes active power and pulse width function model
To meet large hydropower station monitoring system adjusting Rapid Stability active to unit and reliability requirement.
The above-mentioned purpose of the present invention is technical solution in this way to realize：A kind of active arteries and veins of Hydropower Plant LCU
Regulating system is rushed, the active pulse regulation systems of Hydropower Plant LCU are in power analog amount pulse regulation pattern or aperture regulation mould
Under formula, unit active power is quickly adjusted with interpolation algorithm and amendment proportional algorithm, is comprised the following modules：
1. obtaining the active desired value module of unit；
2. obtaining power regulation mode module；
3. interpolation algorithm obtains aperture pattern initial value module；
4. correcting proportional algorithm obtains adjusting pulsewidth module；
5. the active monitoring module of unit；
The specific implementation step that the system establishes head, power and pulsewidth relation function by interpolation algorithm is as follows：
1) power head and unit maximum power relational model are established with head-maximum power array；
1 head of table-maximum power array
| X | WATERHx[0] | WATERHx[1] | WATERHx[2] | WATERHx[3] | … | WATERHx[15] | WATERHx[16] |
| Y | MaxP[0] | MaxP[1] | MaxP[2] | MaxP[3] | … | MaxP[15] | MaxP[16] |
2) head-maximum pulse width array and calculating formula (1-1) is used to establish the power of the assembling unit and pulse width model；
2 heads of table-maximum pulse width array
| X | WATERHx[0] | WATERHx[1] | WATERHx[2] | WATERHx[3] | … | WATERHx[15] | WATERHx[16] |
| Y | MaxTP[0] | MaxTP[1] | MaxTP[2] | MaxTP[3] | … | MaxTP[15] | MaxTP[16] |
3) interpolation expressions (1-1) are used to calculate the unit maximum allowable power of current head and maximum allowable aperture arteries and veins
It is wide；
Wherein：WATERHx is head value；MaxP is maximum power；MaxTP is maximum pulse width；
Wherein：X is current head value；Y is current head maximum allowable power or pulsewidth；Xi is the current head at i moment
Value；Yi is the head maximum allowable power or pulsewidth at i moment；I is 1~16.
The system is as follows by the specific implementation step for correcting proportional algorithm acquisition adjusting pulsewidth module：
1) it obtains the current active real hair value of unit, active desired value, adjust dead band value DEADB；
2) the active desired value of unit and real hair value absolute difference Diff are obtained according to calculation formula (2-1), if target
Value is more than maximum allowable regulated value MAXDEV with current value difference, then maximum allowable regulated value is used as current active desired value,
Calculation formula is (2-2)；Determine whether that pulse calculating is adjusted to be started if the difference, which is more than, adjusts dead band value
Pulse is adjusted to calculate；
| REVF-I |=Diff ＞ DEADB (2-1)
If Diff ＞ MAXDEV then Diff=MAXDEV (2-2)
Wherein REVF is expressed as desired value, and I is current real hair value, and Diff is the difference of current target value and current value difference
Absolute value；DEADB is to adjust dead band value；
3) pulse regulation width and twice arteries and veins are calculated separately by correcting proportional algorithm formula (2-3), (2-4) and (2-5)
The septa intersegmental time is reconstituted, pulse regulation exports blocking time；
TPause=(Ton × Tpac+Tapmin) × 1000 (ms) (2-4)
Tlock=(Ton+Tpause) (ms) (2-5)
Wherein：Ton is pulse regulation width, TPauseFor pulse regulation interval time twice, TlockIt is exported for pulse regulation
Blocking time, K are pulse regulation proportionality coefficient, and Tgap is pulse regulation corrected parameter, and Tpmin is minimum pulse, Tpac
For pulse regulation space ratio coefficient, Tapmin is pulse regulation minimum time interval.
4) according to the active desired value of current unit and active real hair value bias direction, power regulation direction is judged, if currently
Active reality hair value is more than active desired value, then regards as power regulation negative direction, if current active real hair value is less than active target
Value is then regarded as adjusting positive direction；
5) deviation that direction and last power regulation direction are adjusted according to current power, judges that current power adjusts direction
Whether have commutation, if current power adjust direction and last power regulation direction it is inconsistent or adjust direction commutating and
It does not commutate and terminates, then assert that current power adjusts direction and has commutation；
6) actually increased according to power regulation direction and the calculating of pulse regulation width, subtract pulse width：When for power regulation it is anti-
Direction and without commutation when, then current power is adjusted to subtract pulse；When for power regulation positive direction and without commutation, then current power
It is adjusted to increase pulse；
7) time interval between power regulation is determined by pulse regulation interval time twice, per between power regulation twice
By pulse regulation output blocking time locking.
8) the current active desired value of unit is not being adjusted within the scope of dead band value with active real hair value absolute difference, then turns to jump
It is calculated to step 2) from new；If the current active desired value of unit is adjusting dead band value range with active real hair value absolute difference
Interior, then power regulation terminates.
The interpolation algorithm obtain aperture pattern initial value improve LCU for generator set be suitable in aperture regulation pattern it is various
Change of water level ability, solve is led to power and aperture functional relation uncertain problem by change of water level.
The amendment proportional algorithm meets large hydropower station monitoring system adjusting Rapid Stability active to unit and can
It is required by property.
The method have the advantages that：
1, solving change of water level leads to power and aperture functional relation uncertain problem.
2, applicability of the LCU for generator set power regulation under different heads is improved.
3, the active pulse regulation system of LCU for generator set of the invention is under power pulse shaping modes or aperture regulation pattern,
By correcting proportional algorithm, adjusting pulse increment is calculated, it is fast to meet the adjusting active to unit of large hydropower station monitoring system
Fast stability and reliability requirement.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is present system function composite structural diagram；
Fig. 2 is that present system corrects proportional algorithm acquisition adjusting pulsewidth module flow diagram.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
A kind of active pulse regulation systems of Hydropower Plant LCU, the active pulse regulation systems of Hydropower Plant LCU are in power
Under analog quantity pulse regulation pattern or aperture regulation pattern, it is active quickly to adjust unit with interpolation algorithm and amendment proportional algorithm
Power comprises the following modules, as shown in Figure 1.
1. obtaining unit active power desired value module：Its function mainly utilizes computer supervisory control system platform, uses
Three kinds of modes such as operator's setting, power plant AGC, the setting of automatic startup-shutdown initial value obtain unit active power desired value.
2. obtaining power regulation mode module：Its function mainly utilizes computer supervisory control system platform, in set grid-connection
Shi Zidong sets power of the assembling unit shaping modes as active given way pattern, active pulse regulation pattern or aperture regulation mould
Formula；Aperture regulation pattern is automatically engaged under Feedback of Power fault condition.
3. interpolation algorithm obtains aperture pattern initial value module：Its major function is under aperture regulation pattern, with slotting
Value-based algorithm establishes head-maximum power function and head-maximum impulse function respectively, current to obtain the unit under aperture pattern
Active reality hair value, adjusts dead band value and pulse regulation Proportional coefficient K value at active desired value.
4. correcting proportional algorithm obtains adjusting pulsewidth module：Its function is that fortune amendment proportional algorithm calculates pulse regulation in real time
Width, pulse regulation interval time and pulse regulation export blocking time, and adjust barring condition and adjusting direction according to certain
Implement pulse regulation output.
5. the active monitoring module of unit：Mainly it is whether monitoring this system power target value adjusting reaches set value of the power
Regulation adjusts dead zone, is more than power regulation dead band value when actual measurement has work value and setting value deviation, and the duration is more than 10 minutes,
It then alarms " the active adjusting failure of unit ", while with the active adjusting failure of timing program involution unit.
The system is as follows by interpolation algorithm acquisition aperture pattern initial value specific implementation step：
1) power head and unit maximum power relational model are established with head-maximum power array；
1 head of table-maximum power array
| X | WATERHx[0] | WATERHx[1] | WATERHx[2] | WATERHx[3] | … | WATERHx[15] | WATERHx[16] |
| Y | MaxP[0] | MaxP[1] | MaxP[2] | MaxP[3] | … | MaxP[15] | MaxP[16] |
2) head-maximum pulse width array and calculating formula (1-1) is used to establish the power of the assembling unit and pulse width model；
2 heads of table-maximum pulse width array
| X | WATERHx[0] | WATERHx[1] | WATERHx[2] | WATERHx[3] | … | WATERHx[15] | WATERHx[16] |
| Y | MaxTP[0] | MaxTP[1] | MaxTP[2] | MaxTP[3] | … | MaxTP[15] | MaxTP[16] |
3) interpolation expressions (1-1) are used to calculate the unit maximum allowable power of current head and maximum allowable aperture arteries and veins
It is wide；
Wherein：WATERHx is head value；MaxP is maximum power；MaxTP is maximum pulse width；
Wherein：X is current head value；Y is current head maximum allowable power or pulsewidth；Xi is the current head at i moment
Value；Yi is the head maximum allowable power or pulsewidth at i moment；I is 1~16.
The system is as follows by the specific implementation step for correcting proportional algorithm acquisition adjusting pulsewidth module：
1) it obtains the current active real hair value of unit, active desired value, adjust dead band value DEADB；
2) the active desired value of unit and real hair value absolute difference Diff are obtained according to calculation formula (2-1), if target
Value is more than maximum allowable regulated value MAXDEV with current value difference, then maximum allowable regulated value is used as current active desired value,
Calculation formula is (2-2)；Determine whether that pulse calculating is adjusted to be started if the difference, which is more than, adjusts dead band value
Pulse is adjusted to calculate；
| REVF-I |=Diff ＞ DEADB (2-1)
If Diff ＞ MAXDEV then Diff=MAXDEV (2-2)
Wherein REVF is expressed as desired value, and I is current real hair value, and Diff is the difference of current target value and current value difference
Absolute value；DEADB is to adjust dead band value；
3) pulse regulation width and twice arteries and veins are calculated separately by correcting proportional algorithm formula (2-3), (2-4) and (2-5)
The septa intersegmental time is reconstituted, pulse regulation exports blocking time；
TPause=(Ton × Tpac+Tapmin) × 1000 (ms) (2-4)
Tlock=(Ton+TPause)(ms) (2-5)
Wherein：Ton is pulse regulation width, TPauseFor pulse regulation interval time twice, TlockIt is exported for pulse regulation
Blocking time, K are pulse regulation proportionality coefficient, and Tgap is pulse regulation corrected parameter, and Tpmin is minimum pulse, Tpac
For pulse regulation space ratio coefficient, Tapmin is pulse regulation minimum time interval.
4) according to the active desired value of current unit and active real hair value bias direction, power regulation direction is judged, if currently
Active reality hair value is more than active desired value, then regards as power regulation negative direction, if current active real hair value is less than active target
Value is then regarded as adjusting positive direction；
5) deviation that direction and last power regulation direction are adjusted according to current power, judges that current power adjusts direction
Whether have commutation, if current power adjust direction and last power regulation direction it is inconsistent or adjust direction commutating and
It does not commutate and terminates, then assert that current power adjusts direction and has commutation；
6) actually increased according to power regulation direction and the calculating of pulse regulation width, subtract pulse width：When for power regulation it is anti-
Direction and without commutation when, then current power is adjusted to subtract pulse；When for power regulation positive direction and without commutation, then current power
It is adjusted to increase pulse；
7) time interval between power regulation is determined by pulse regulation interval time twice, per between power regulation twice
By pulse regulation output blocking time locking.
8) the current active desired value of unit is not being adjusted within the scope of dead band value with active real hair value absolute difference, then turns to jump
It is calculated to step 2) from new；If the current active desired value of unit is adjusting dead band value range with active real hair value absolute difference
Interior, then power regulation terminates.
Claims (3)
1. a kind of active pulse regulation systems of Hydropower Plant LCU, which is characterized in that the active pulse regulations of Hydropower Plant LCU
System with interpolation algorithm and corrects the fast velocity modulation of proportional algorithm under power analog amount pulse regulation pattern or aperture regulation pattern
Unit active power is saved, is comprised the following modules：
1. obtaining the active desired value module of unit；
2. obtaining power regulation mode module；
3. interpolation algorithm obtains aperture pattern initial value module；
4. correcting proportional algorithm obtains adjusting pulsewidth module；
5. the active monitoring module of unit；
The system is as follows by the specific implementation step for correcting proportional algorithm acquisition adjusting pulsewidth module：
1) the current active real hair value of unit, active desired value are obtained and adjusts dead band value DEADB；
2) the active desired value of unit and current active real hair value absolute difference Diff are obtained according to calculation formula (2-1), if
Active desired value is more than maximum allowable regulated value MAXDEV with current active real hair value absolute difference, then by maximum allowable adjusting
For value MAXDEV as Diff, calculation formula is (2-2)；It determines whether that pulse calculating is adjusted, if the difference is big
In adjusting dead band value, then starts and adjust pulse calculating；
| REVF-I |=Diff ＞ DEADB (2-1)
If Diff ＞ MAXDEV then Diff=MAXDEV (2-2)
Wherein REVF is expressed as active desired value, and I is current active reality hair value, and Diff is active desired value and current active real hair
It is worth absolute difference；DEADB is to adjust dead band value；
3) pulse regulation width and two subpulse tune are calculated separately by correcting proportional algorithm formula (2-3), (2-4) and (2-5)
Septa intersegmental time, pulse regulation export blocking time；
TPause=(Ton × Tpac+Tapmin) × 1000 (ms) (2-4)
Tlock=(Ton+TPause)(ms) (2-5)
Wherein：Ton is pulse regulation width, TPauseFor pulse regulation interval time twice, TlockIt exports and is latched for pulse regulation
Time, K are pulse regulation proportionality coefficient, and Tgap is pulse regulation corrected parameter, and Tpmin is minimum pulse, and Tpac is arteries and veins
Septa intersegmental proportionality coefficient is reconstituted, Tapmin is pulse regulation minimum time interval；
4) according to the active desired value of current unit and active real hair value bias direction, power regulation direction is judged, if current active
Real hair value is more than active desired value, then regards as power regulation negative direction, if current active real hair value is less than active desired value,
It regards as adjusting positive direction；
5) deviation that direction and last power regulation direction are adjusted according to current power, judges whether current power adjusts direction
There is commutation, if current power adjusts direction and last power regulation direction is inconsistent or adjusting direction is being commutated and do not had
Commutation terminates, then assert that current power adjusts direction and has commutation；
6) actually increased according to power regulation direction and the calculating of pulse regulation width, subtract pulse width：When for power regulation negative direction
And when without commutation, then current power is adjusted to subtract pulse；When for power regulation positive direction and without commutation when, then current power adjust
To increase pulse；
7) time interval between power regulation is determined by pulse regulation interval time twice, per power regulation twice between by
Pulse regulation exports blocking time locking；
8) the current active desired value of unit is not being adjusted within the scope of dead band value with active real hair value absolute difference, then turns to jump to step
It is rapid 2) to recalculate；If the current active desired value of unit is being adjusted with active real hair value absolute difference within the scope of dead band value,
Power regulation terminates.
2. the active pulse regulation systems of a kind of Hydropower Plant LCU according to claim 1, which is characterized in that the interpolation
It is as follows that algorithm obtains aperture pattern initial value specific implementation step：
1) power head and unit maximum power relational model are established with head-maximum power array；
1 head of table-maximum power array
2) head-maximum pulse width array and calculating formula (1-1) is used to establish the power of the assembling unit and pulse width model；
2 heads of table-maximum pulse width array
3) interpolation expressions (1-1) are used to calculate the unit maximum allowable power of current head and maximum allowable aperture pulsewidth；
Wherein：WATERHx is head value；MaxP is maximum power；MaxTP is maximum pulse width；
Wherein：X is current head value；Y is current head maximum allowable power or pulsewidth；Xi is the current head value at i moment；Yi
For the head maximum allowable power or pulsewidth at i moment；I is 1~16.
3. the active pulse regulation systems of a kind of Hydropower Plant LCU according to claim 1 or claim 2, which is characterized in that described to insert
Value-based algorithm and amendment proportional algorithm improve the active pulse regulation system of Hydropower Plant in active pulse regulation pattern or aperture
The timeliness and reliability of power regulation under shaping modes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610327273.6A CN105958553B (en) | 2016-05-17 | 2016-05-17 | A kind of active pulse regulation systems of Hydropower Plant LCU |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610327273.6A CN105958553B (en) | 2016-05-17 | 2016-05-17 | A kind of active pulse regulation systems of Hydropower Plant LCU |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105958553A CN105958553A (en) | 2016-09-21 |
| CN105958553B true CN105958553B (en) | 2018-07-31 |
Family
ID=56913000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610327273.6A Active CN105958553B (en) | 2016-05-17 | 2016-05-17 | A kind of active pulse regulation systems of Hydropower Plant LCU |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105958553B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939590B (en) * | 2017-12-04 | 2021-02-05 | 重庆新世杰电气股份有限公司 | Control method for generating power according to water level |
| CN108649619B (en) * | 2018-05-30 | 2021-10-15 | 中国大唐集团科学技术研究院有限公司西北分公司 | Primary frequency modulation and active power regulation locking control method for hydroelectric generating set |
| CN111953247B (en) * | 2020-06-05 | 2021-11-05 | 国网电力科学研究院有限公司 | Method and device for fine adjustment and control of power of hydroelectric generating set |
| CN112343763B (en) * | 2020-10-16 | 2022-05-31 | 四川华能宝兴河水电有限责任公司 | Method and system for adjusting power pulse of approach type hydropower station |
| CN112383254B (en) * | 2020-12-07 | 2022-03-15 | 中国长江电力股份有限公司 | Guide vane opening degree analog quantity segmentation open-loop control method and system |
| CN114172215B (en) * | 2021-12-21 | 2022-09-06 | 华能澜沧江水电股份有限公司 | Hydropower station power adjusting method, device and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882898A (en) * | 2015-06-29 | 2015-09-02 | 国家电网公司 | Primary frequency modulation method used for hydroelectric generating set |
-
2016
- 2016-05-17 CN CN201610327273.6A patent/CN105958553B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882898A (en) * | 2015-06-29 | 2015-09-02 | 国家电网公司 | Primary frequency modulation method used for hydroelectric generating set |
Non-Patent Citations (2)
| Title |
|---|
| Intelligent distributed local control unit for hydropower plant;Chen Sining, et al;《Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on》;20021017;1525-1527 * |
| 溪洛渡右岸电站AGC 功能与策略设计简介;瞿卫华，等;《水电站机电技术》;20150731;第38卷(第7期);37-39、68 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105958553A (en) | 2016-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105958553B (en) | A kind of active pulse regulation systems of Hydropower Plant LCU | |
| US20230093345A1 (en) | Method and system for collaborative regulation of multi-component power distribution network with high proportion of distributed power sources | |
| US20220404777A1 (en) | Design method for undisturbed switching of linear controllers | |
| CN104052077A (en) | Direct-current transmission contravariant side frequency control method | |
| Köroğlu et al. | New LMI conditions for static output feedback synthesis with multiple performance objectives | |
| CN110854935A (en) | Photovoltaic power station active power automatic control method with sample plate inverter | |
| CN107809119A (en) | A kind of optimization method of high-voltage direct current current controller parameter | |
| CN109164701A (en) | A kind of course heading control method and system based on fuzzy control | |
| CN102969741B (en) | AGC (Automatic Generation Control) set control method based on dynamic regulation step length | |
| CN110556843B (en) | Design method and system for transient power angle stability performance index of new energy station | |
| CN112531734A (en) | Method and device for suppressing oscillation of multi-feeder line alternating current-direct current flexible interconnection system | |
| CN105790316B (en) | A kind of idle pulse regulation systems of Hydropower Plant LCU | |
| CN104466681B (en) | A kind of cascade control system of fiber amplifier | |
| CN112523929B (en) | Control method and system combining guide vane opening analog quantity segmented open-loop control and speed regulator PID closed-loop control | |
| CN103401247B (en) | The optimization method of AGC and AVC is realized in power plant's booster stations supervisory control system | |
| CN108062117A (en) | A kind of more oxygen-eliminating device paired running water-level control apparatus | |
| CN104090589B (en) | Deaerator level whole-process control system and method under the conditions of solidifying pump frequency conversion with tracking | |
| CN108964082B (en) | Method and device for controlling active power of photovoltaic power station | |
| CN116345487A (en) | AGC and primary frequency modulation coordination control method for hydropower station in frequency modulation auxiliary service market | |
| CN106786484B (en) | Method and device for suppressing second harmonic current | |
| CN113098343B (en) | Method, device and system for controlling output power of generator and electronic equipment | |
| CN104578079B (en) | Power grid section power control method for automatic power generation control | |
| CN104716673B (en) | A kind of unit allocation method and system based on load curve | |
| CN107370161B (en) | A kind of voltage control method of wind power plant powerless control system | |
| CN104393607A (en) | Power stabilizing method and device for micro-grid system grid-connected node |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |