CN109343409A - A kind of supplementary controlled system and method for full admission unit primary frequency modulation - Google Patents
A kind of supplementary controlled system and method for full admission unit primary frequency modulation Download PDFInfo
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- 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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- G—PHYSICS
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Abstract
The supplementary controlled system and method for a kind of full admission unit primary frequency modulation provided by the invention, including unit current state fm capacity judging unit and condensate throttling quick load change control unit next time, wherein, the input terminal input of unit current state fm capacity judging unit next time has deviation between current power generator turbine valve opening, practical main steam pressure and setting value and primary frequency regulation of power network power increment to instruct；Unit current state next time fm capacity judging unit output end connect condensate throttling quick load change control unit；By quickly adjusting condensing water flow to throttling accumulation of energy using accurately being controlled, while disassembly instruction alleviates the pressure that machine furnace side controls, to obtain better dynamic control effect.
Description
Technical field
The invention belongs to fired power generating unit control field, in particular to the auxiliary of a kind of full admission unit primary frequency modulation controls
System and method.
Background technique
In order to further increase the performance driving economy of fired power generating unit, reduce unit generation coal consumption, unit is in the process of running
Often use sliding pressure operation mode, it may be assumed that open big steam turbine valve aperture as far as possible to avoid into the restriction loss during vapour.Especially
For uniform-admission turbine unit, since full admission unit uses two groups of high pitch in the design process, in Load Regulation
Two groups of valve synchronization actions in the process, in order to pursue the economy of unit operation, full admission unit is often in depth sliding pressure
Under control model, steam turbine valve aperture is almost close to full-gear, although economy is improved at this time, fired power generating unit
Operational flexibility but substantially reduces.
Especially as the access of the extensive new energy electric power in China, in order to inhibit new energy electric power fluctuation steady to operation of power networks
Fixed influence, during fired power generating unit need to frequently participate in primary frequency modulation and quick peak regulation, and full admission unit is in height at this time
But it is difficult to meet primary frequency regulation of power network requirement under valve seat opening.
Summary of the invention
The purpose of the present invention is to provide the supplementary controlled systems and method of a kind of full admission unit primary frequency modulation, solve
The deficiency of existing unit Primary frequency control ability during depth sliding pressure operation is not able to satisfy primary frequency regulation of power network examination and wants
The defect asked.
In order to achieve the above object, the technical solution adopted by the present invention is that:
A kind of supplementary controlled system of full admission unit primary frequency modulation provided by the invention, including under unit current state
Primary frequency control ability judging unit and condensate throttling quick load change control unit, wherein
Unit current state next time fm capacity judging unit input terminal input there is current power generator turbine valve to open
Deviation and primary frequency regulation of power network power increment between degree, practical main steam pressure and setting value instruct；Under unit current state
The output end of Primary frequency control ability judging unit connects condensate throttling quick load change control unit.
Preferably, unit current state next time fm capacity judging unit include the first decision block, first with door block, the
Two decision blocks, second and door block, the first NOT gate block, third decision block, the first difference block, first or door block and rest-set flip-flop,
In, steam turbine valve aperture accesses the input terminal of the first decision block, output termination first and the door block of the first decision block；
The input terminal of primary frequency modulation power increment instruction the second decision block of access, the output end connection first of the second decision block
With the input terminal of door block, second and door block and the first NOT gate block, the reset terminal R of the output termination rest-set flip-flop of the first NOT gate block
End；
Between practical main steam pressure and setting value deviation access third decision block input terminal, third decision block it is defeated
The input terminal of termination second and door block out；
First connects the input terminal of first or door block with door block and second with the output end of door block, first or door block output
Terminate the end triggering end S of rest-set flip-flop；Rest-set flip-flop output termination condensate throttling quick load change control unit.
Preferably, condensate throttling quick load change control unit includes function F (x) module, first choice block and first
Adder block, wherein the input terminal of primary frequency modulation power increment instruction access function F (x) module, the output end of function F (x) module
Connect the input terminal of first choice block；
Throttling trigger signal and constant connect the input terminal of first choice block, and the output of first choice block terminates the first addition
The input terminal of block, the output of the first adder block is as solidifying pump frequency conversion device instruction.
A kind of auxiliary control method of full admission unit primary frequency modulation, it is primary based on a kind of full admission unit
The supplementary controlled system of frequency modulation, comprising the following steps:
According between current power generator turbine valve opening, practical main steam pressure and setting value deviation and power grid it is primary
The condensate throttling trigger signal h of frequency modulation power increment instruction building auxiliary unit primary frequency modulation, and the condensate throttling is touched
Signalling h is input to condensate throttling quick load change control unit, and condensate throttling quick load change control unit is believed with this
Number as judgement carry out switching control.
Preferably, the specific method of the condensate throttling trigger signal h of building auxiliary unit primary frequency modulation is:
Firstly, setting the upper lower limit value of power generator turbine valve opening in the first decision block, being set in the second decision block
Determine the upper lower limit value of primary frequency modulation power increment instruction, set between practical main steam pressure and setting value in third decision block
Deviation upper lower limit value, wherein
It is set if current power generator turbine valve opening value is less than the power generator turbine valve opening upper limit value of setting and is greater than
Fixed power generator turbine valve opening lower limit value, then the logical signal a of the first decision block output is 0；
If current power generator turbine valve opening value is greater than the power generator turbine valve opening upper limit value of setting or less than setting
Fixed power generator turbine valve opening lower limit value, then the logical signal a of the first decision block output is 1；
It is set if primary frequency modulation power increment instruction value is less than the primary frequency modulation power increment instruction upper limit value of setting and is greater than
Fixed primary frequency modulation power increment instructs lower limit value, then the logical signal b of the second decision block output is 0；
If primary frequency modulation power increment instruction value is greater than the primary frequency modulation power increment instruction upper limit value of setting or less than setting
Fixed primary frequency modulation power increment instructs lower limit value, then the logical signal b of the second decision block output is 1；
If the deviation between practical main steam pressure and setting value is less than the practical main steam pressure and setting value of setting
Between upper deviation value and be greater than setting practical main steam pressure and setting value between lower limit of variation value, then third judge
The logical signal c of block output is 0；
If the deviation between practical main steam pressure and setting value is greater than the practical main steam pressure and setting value of setting
Between upper deviation value or less than the lower limit of variation value between the practical main steam pressure and setting value of setting, then third judges
The logical signal c of block output is 1；
Secondly, being asked and being calculated logical signal a and logical signal b input first with door block, first exports with door block
Logical signal e；
Logical signal b is inputted the first NOT gate block to carry out negating calculating, then the first NOT gate block output logic signal d；
Logical signal b and logical signal c input second is asked and calculated with door block, second believes with door block output logic
Number f；
Logical signal e and logical signal f input first or door block are asked or judged, first or door block output logic letter
Number g；
Then；It is inputted logical signal g as the end S of rest-set flip-flop, logical signal d is defeated as the end R of rest-set flip-flop
Enter；
Finally, rest-set flip-flop is triggered to logical signal g and logical signal d and resetted judgement, rest-set flip-flop output is solidifying
Bear water throttling trigger signal h；Wherein, when the S input terminal and R input of rest-set flip-flop are 0, rest-set flip-flop keeps original state
State；When the S input terminal of rest-set flip-flop is 1, R input is 0, the condensate throttling trigger signal h of rest-set flip-flop output is 1；
When R input is 1, and the input end S is 0, the condensate throttling trigger signal h of rest-set flip-flop output is 0.
Preferably, condensate throttling quick load change control unit carries out the specific of switching control using this signal as judgement
Method is:
Firstly, primary frequency modulation power increment is input to function F (x) module, function F (x) module exports solidifying pump frequency conversion device
Frequency difference instruction；
Then, by condensate throttling trigger signal h input value first choice block the end En, by constant and solidifying pump frequency conversion device
Frequency difference instruction be separately input to first choice block selection end In1 and selection end In2；Wherein, when En terminates the condensation received
When water throttling trigger signal h is 1, then select end In2 as the input terminal of the first adder block first choice block；When En is terminated
When the condensate throttling trigger signal h received is 0, then select end In1 as the input of the first adder block first choice block
End；
Then, it by solidifying the first adder block of pump frequency conversion device instruction input of original, and is asked with the output signal of first choice block
And calculating, the first adder block exports solidifying pump frequency conversion device instruction, and then realizes the auxiliary adjustment to primary frequency modulation.
Compared with prior art, the beneficial effects of the present invention are:
The supplementary controlled system of a kind of full admission unit primary frequency modulation provided by the invention, due to being sent to unit cooperative control
The frequency modulation load instruction of system processed is not limited by unit Changing load-acceleration, however steam turbine pitch is by the big inertia of boiler side large delay
Influence can not fully achieve quickly tracking frequency modulation load instruction, and boiler side be quick response load generally used combustion plan
It omits, therefore unit load fluctuation is larger in adjustment process；
And since response speed faster, can be by quickly adjusting condensing water flow compared with machine furnace side for condensate throttling
To throttling accumulation of energy using accurately being controlled, while disassembly instruction alleviates the pressure of machine furnace side control, to obtain preferably
Dynamic control effect.
Detailed description of the invention
Fig. 1 is primary frequency modulation auxiliary adjustment triggering logic；
Fig. 2 is primary frequency modulation auxiliary adjustment control logic；
Fig. 3 is condensate throttling effect contrast figure.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in more detail.
The present invention provides a kind of full admission unit primary frequency modulation supplementary controlled systems, first according to current unit steamer
The feelings of deviation and the instruction of primary frequency regulation of power network power increment between machine valve opening, practical main steam pressure and setting value
Condition, the condensate throttling trigger signal of building auxiliary unit primary frequency modulation, primary frequency modulation auxiliary adjustment controller is with this signal work
Switching control is carried out for judgement.
As shown in Figure 1, a kind of supplementary controlled system of full admission unit primary frequency modulation provided by the invention, including be used for
Control unit current state fm capacity judging unit and condensate throttling quick load change control unit next time, wherein
Fm capacity judging unit, as control condensate throttling auxiliary adjustment means trigger unit current state next time
Signal, including the first decision block, first with door block, the second decision block, second with door block, the first NOT gate block, third decision block, the
One difference block, first or door block and rest-set flip-flop,
Wherein, decision block is usually exactly to be compared according to high/low limit value with input quantity, goes beyond the scope and exports switching value 1；
It is exactly asking inside logical operation with door block and calculates；NOT gate block is exactly the calculating of negating inside logic calculation；Or door block is exactly
Asking inside logic calculation calculates；Difference block is exactly subtraction；
Steam turbine valve aperture accesses the first decision block, and the output of the first decision block connects first and door block；
Primary frequency modulation power increment instruction access the second decision block, the output of the second decision block connect respectively first with door block,
Second connects the end reset terminal R of rest-set flip-flop with door block and the first NOT gate block, the output of the first NOT gate block；
Practical main steam pressure and main steam pressure setting value access the first difference block, and the output of the first difference block connects the
Three decision blocks, the output of third decision block connect second and door block；
First connects first or door block with the output of door block with door block and second, first or the output of door block connect rest-set flip-flop
The end triggering end S；Rest-set flip-flop output throttling trigger switch amount signal h.
Wherein: the first decision block, the second decision block, third decision block judge the signal value received, if being less than
Equal to setting upper limit value and be greater than setting lower limit value then export 0, the upper limit value if more than setting or the lower limit less than setting
Value then exports 1；
First with door block, second with the access of door block to fully enter end be 1 when, exporting is 1, defeated when any incoming end is 0
It is out 0；
For first NOT gate block to access signal reversion, inputting output when being 1 is 0, inputs and exports 1 when being 0；
First or door block incoming end it is all 0 when export 0, any incoming end exports 1 when being 1；
The output of first difference block is the difference of the numerical value of input terminal In1 and the numerical value of input terminal In2；
In Fig. 1, logical signal a expression steam turbine valve aperture is compared with upper limit value and lower limit value that module is set, mould
The upper limit value that block is set is that the saturation region of steam turbine valve aperture limits as 55；The lower limit value that module is set is specific as 0
Logical relation are as follows:
If steam turbine valve aperture numerical value is less than the upper limit value of setting and is greater than the lower limit value of setting, logical signal a
It is 0；If steam turbine valve aperture numerical value is greater than the upper limit value of setting or the lower limit value less than setting, logical signal a is 1.
Logical signal b indicates that primary frequency modulation power increment instructs compared with upper limit value and lower limit value that module is set, second
The upper limit value of decision block is set as 2MW, and lower limit value setting value is -2MW, specific logical relation are as follows:
If primary frequency modulation power increment instructs numerical value to be less than the upper limit value of setting and is greater than the lower limit value of setting, logic
Signal b is 0；If primary frequency modulation power increment instructs numerical value to be greater than the upper limit value of setting or the lower limit value less than setting, patrol
Collecting signal b is 1.
Logical signal c indicate the upper limit value that main steam pressure setting value and practical main steam pressure deviation are set with module and
Lower limit value compares, and the upper limit value of third decision block is set as 0.4Mpa, and lower limit value is set as -0.4Mpa, and specific logic is closed
System are as follows:
It is set if main steam pressure setting value and the practical main steam pressure amount of deflection are less than the upper limit value of setting and are greater than
Fixed lower limit value, then logical signal c is 0；It is set if main steam pressure setting value and the practical main steam pressure amount of deflection are greater than
Fixed upper limit value or the lower limit value less than setting, then logical signal c is 1；
Logical signal d expression negates logical signal b, specific logical relation are as follows:
Logical signal e expression is asked and is calculated to logical signal a and logical signal b, specific logical relation are as follows: e
=a ∩ b.
Logical signal f expression is asked and is judged to logical signal b and logical signal c, specific logical relation are as follows: f
=b ∩ c.
Logical signal g, which shows, to be asked or is judged to logical signal e and logical signal f, specific logical relation are as follows: g=e
∪f
Logical signal h, which shows, is triggered to logical signal g and logical signal d and is resetted judgement, specific logical relation
Are as follows: when the S input terminal and R input of rest-set flip-flop are 0, rest-set flip-flop maintains the original state；When the S input terminal of rest-set flip-flop
When for 1, R input being 0, rest-set flip-flop output is 1；When R input is 1, and the input end S is 0, rest-set flip-flop output is 0.
As shown in Fig. 2, condensate throttling quick load change control unit includes function F (x) module, first choice block and
One adder block, wherein
Primary frequency modulation power increment instruction access function F (x) module is converted to the instruction of primary frequency modulation power increment solidifying
The frequency difference of pump frequency conversion device instructs, and F (x) is typically provided to linear functional relation, F (x)=0.8 × dNe in this example, wherein dNe
Refer to for primary frequency modulation power increment, the output of function F (x) module connects first choice block；
Throttling trigger signal and constant 0 connect first choice block, and the output of first choice block connects the first adder block, and first adds
Method block receives the output of first choice block and unit original coagulates the instruction of pump frequency conversion device, and the output of the first adder block is as solidifying pump frequency conversion device
Instruction, and then complete to adjust control action.
Wherein, function F (x) module is converted to the input signal received by the functional relation of setting
Output；
The first choice block enable end end En receives on-off model, and end In1 and selection end In2 is selected to receive analog quantity letter
Number, when enable end En is switching value 1, then output end selects In2 as output；When enable end En is switching value 0, then export
End selects In1 as output.
First adder block is that the numerical value of input terminal In1 adds the numerical value of input terminal In2；
When the trigger switch amount signal that throttles is 0, first choice module output at this time is 0, coagulates the instruction of pump frequency conversion device and keeps
Constant, condensate throttling auxiliary adjustment system is failure to actuate；
When the trigger switch amount signal that throttles is 1, first choice module selects the output conduct of function F (x) module at this time
The output of first choice module, at this time coagulate pump frequency conversion device instruction will original instruction on the basis of superpositing function F (x) module it is defeated
Out, to realize the auxiliary adjustment to primary frequency modulation.
The beneficial effects of the invention are as follows for uniform-admission turbine group, when valve proximity saturation region or main steam pressure
It is larger to deviate setting value, when being unable to satisfy check requirements of the power grid to its primary frequency modulation, quickly becomes by using condensate throttling
Load auxiliary adjustment means, can promote the Control platform of unit primary frequency modulation.
As shown in figure 3, its reason is: being sent to the frequency modulation load instruction of Coordinated Control Systems not by unit varying duty
Rate limit, however steam turbine pitch is influenced not fully achieving quickly tracking frequency modulation load by the big inertia of boiler side large delay
Instruction, and boiler side is that quick response load generally used combustion strategy, therefore unit load fluctuation is larger in adjustment process；
And response speed faster, can be by quickly adjusting condensing water flow to throttling accumulation of energy benefit compared with machine furnace side for condensate throttling
With accurately being controlled, while disassembly instruction alleviates the pressure of machine furnace side control, to obtain better dynamic control effect.
Claims (6)
1. a kind of supplementary controlled system of full admission unit primary frequency modulation, which is characterized in that including under unit current state one
Secondary fm capacity judging unit, condensate throttling quick load change control unit and DCS boiler master system, wherein
Unit current state next time fm capacity judging unit input terminal input have current power generator turbine valve opening, reality
Deviation and the instruction of primary frequency regulation of power network power increment between border main steam pressure and setting value；Unit current state is adjusted next time
The input terminal of the output end connection condensate throttling quick load change control unit of frequency ability judging unit, condensate throttling are quick
The output of varying duty control unit terminates DCS boiler master system.
2. a kind of supplementary controlled system of full admission unit primary frequency modulation according to claim 1, which is characterized in that machine
Fm capacity judging unit includes the first decision block, first and door block, the second decision block, second and door to group current state next time
Block, the first NOT gate block, third decision block, first or door block and rest-set flip-flop, wherein the first judgement of steam turbine valve aperture access
The input terminal of block, output termination first and the door block of the first decision block；
The input terminal of primary frequency modulation power increment instruction the second decision block of access, the output end connection first of the second decision block and door
Block, second with the input terminal of door block and the first NOT gate block, the end reset terminal R of the output termination rest-set flip-flop of the first NOT gate block；
The input terminal of deviation access third decision block between practical main steam pressure and setting value, the output end of third decision block
Connect the input terminal of second Yu door block；
First connects the input terminal of first or door block with door block and second with the output end of door block, first or door block output termination
The end triggering end S of rest-set flip-flop；Rest-set flip-flop output termination condensate throttling quick load change control unit.
3. a kind of supplementary controlled system of full admission unit primary frequency modulation according to claim 1, which is characterized in that solidifying
Bearing water throttling quick load change control unit includes function F (x) module, first choice block and the first adder block, wherein primary to adjust
The input terminal of frequency power increment instruction access function F (x) module, the input of the output termination first choice block of function F (x) module
End；
Throttling trigger signal and constant connect the input terminal of first choice block, output the first adder block of termination of first choice block
Input terminal, the output of the first adder block is as solidifying pump frequency conversion device instruction.
4. a kind of auxiliary control method of full admission unit primary frequency modulation, which is characterized in that be based on described in claim 1 one
The supplementary controlled system of kind full admission unit primary frequency modulation, comprising the following steps:
According to the deviation and primary frequency regulation of power network between current power generator turbine valve opening, practical main steam pressure and setting value
The condensate throttling trigger signal h of power increment instruction building auxiliary unit primary frequency modulation, and the condensate throttling is triggered and is believed
Number h is input to condensate throttling quick load change control unit, and condensate throttling quick load change control unit is with this signal work
Switching control is carried out for judgement.
5. a kind of auxiliary control method of full admission unit primary frequency modulation according to claim 4, which is characterized in that structure
The specific method for building the condensate throttling trigger signal h of auxiliary unit primary frequency modulation is:
Firstly, setting the upper lower limit value of power generator turbine valve opening in the first decision block, setting one in the second decision block
The upper lower limit value of secondary frequency modulation power increment instruction, set in third decision block it is inclined between practical main steam pressure and setting value
The upper lower limit value of difference, wherein
If current power generator turbine valve opening value is less than the power generator turbine valve opening upper limit value of setting and is greater than setting
Power generator turbine valve opening lower limit value, then the logical signal a of the first decision block output is 0；
If current power generator turbine valve opening value is greater than the power generator turbine valve opening upper limit value of setting or less than setting
Power generator turbine valve opening lower limit value, then the logical signal a of the first decision block output is 1；
If primary frequency modulation power increment instruction value is less than the primary frequency modulation power increment instruction upper limit value of setting and is greater than setting
Primary frequency modulation power increment instructs lower limit value, then the logical signal b of the second decision block output is 0；
If primary frequency modulation power increment instruction value is greater than the primary frequency modulation power increment instruction upper limit value of setting or less than setting
Primary frequency modulation power increment instructs lower limit value, then the logical signal b of the second decision block output is 1；
If the deviation between practical main steam pressure and setting value is less than between the practical main steam pressure and setting value of setting
Upper deviation value and be greater than setting practical main steam pressure and setting value between lower limit of variation value, then third decision block is defeated
Logical signal c out is 0；
If the deviation between practical main steam pressure and setting value is greater than between the practical main steam pressure and setting value of setting
Upper deviation value or less than the lower limit of variation value between the practical main steam pressure and setting value of setting, then third decision block is defeated
Logical signal c out is 1；
Secondly, being asked and being calculated logical signal a and logical signal b input first with door block, first exports logic with door block
Signal e；
Logical signal b is inputted the first NOT gate block to carry out negating calculating, then the first NOT gate block output logic signal d；
Logical signal b and logical signal c input second is asked and calculated with door block, second and door block output logic signal f；
Logical signal e and logical signal f input first or door block are asked or judged, first or door block output logic signal g；
Then；It inputs logical signal g as the end S of rest-set flip-flop, is inputted logical signal d as the end R of rest-set flip-flop；
Finally, rest-set flip-flop is triggered to logical signal g and logical signal d and resetted judgement, rest-set flip-flop exports condensed water
Throttle trigger signal h；Wherein, when the S input terminal and R input of rest-set flip-flop are 0, rest-set flip-flop maintains the original state；When
When the S input terminal of rest-set flip-flop is 1, R input is 0, the condensate throttling trigger signal h of rest-set flip-flop output is 1；When R is defeated
Entering end is 1, and when the input end S is 0, the condensate throttling trigger signal h of rest-set flip-flop output is 0.
6. a kind of auxiliary control method of full admission unit primary frequency modulation according to claim 4, which is characterized in that solidifying
Throttling quick load change control unit, which is born water, using this signal as the specific method that judgement carries out switching control is:
Firstly, primary frequency modulation power increment is input to function F (x) module, function F (x) module exports the frequency of solidifying pump frequency conversion device
Difference instruction；
Then, by condensate throttling trigger signal h input value first choice block the end En, by the frequency of constant and solidifying pump frequency conversion device
Difference instruction is separately input to the selection end In1 and selection end In2 of first choice block；Wherein, when En terminates the condensed water section received
When stream trigger signal h is 1, then select end In2 as the input terminal of the first adder block first choice block；When En termination receives
Condensate throttling trigger signal h be 0 when, then select end In1 as the input terminal of the first adder block first choice block；
Then, by solidifying the first adder block of pump frequency conversion device instruction input of original, and summation meter is carried out with the output signal of first choice block
It calculates, the first adder block exports solidifying pump frequency conversion device instruction, and then realizes the auxiliary adjustment to primary frequency modulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811279258.4A CN109343409B (en) | 2018-10-30 | Auxiliary control system and method for primary frequency modulation of full-cycle steam inlet unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811279258.4A CN109343409B (en) | 2018-10-30 | Auxiliary control system and method for primary frequency modulation of full-cycle steam inlet unit |
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| CN109343409A true CN109343409A (en) | 2019-02-15 |
| CN109343409B CN109343409B (en) | 2023-06-13 |
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| CN109857033A (en) * | 2019-02-28 | 2019-06-07 | 中国能源建设集团广东省电力设计研究院有限公司 | Condensate throttling switching control method, device and computer equipment |
| CN112653159A (en) * | 2020-12-16 | 2021-04-13 | 润电能源科学技术有限公司 | Condensate throttling auxiliary frequency modulation control method, device, equipment and storage medium |
| CN112855289A (en) * | 2021-01-13 | 2021-05-28 | 中山嘉明电力有限公司 | Automatic control method for steam turbine bypass |
| CN113835372A (en) * | 2021-08-27 | 2021-12-24 | 吉林省电力科学研究院有限公司 | Control system and method for primary frequency modulation of auxiliary thermal power generating unit of electrode type electric boiler |
| CN115327893A (en) * | 2022-10-12 | 2022-11-11 | 国网山西省电力公司电力科学研究院 | Thermal power generating unit coordinated control system for adjusting main steam pressure set value |
| CN115986849A (en) * | 2023-01-31 | 2023-04-18 | 华能国际电力股份有限公司日照电厂 | Primary frequency modulation self-optimization control method and system |
| CN116454913A (en) * | 2023-03-22 | 2023-07-18 | 华能国际电力股份有限公司济宁电厂 | Primary frequency modulation system and method based on variable frequency adjustment and lifting of coagulation pump |
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| CN109857033A (en) * | 2019-02-28 | 2019-06-07 | 中国能源建设集团广东省电力设计研究院有限公司 | Condensate throttling switching control method, device and computer equipment |
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| CN109768577B (en) * | 2019-03-18 | 2022-07-08 | 华能澜沧江水电股份有限公司 | Hydropower station power control method comprising energy storage primary frequency modulation system |
| CN112653159A (en) * | 2020-12-16 | 2021-04-13 | 润电能源科学技术有限公司 | Condensate throttling auxiliary frequency modulation control method, device, equipment and storage medium |
| CN112653159B (en) * | 2020-12-16 | 2023-08-15 | 润电能源科学技术有限公司 | Condensate water throttling auxiliary frequency modulation control method, device, equipment and storage medium |
| CN112855289A (en) * | 2021-01-13 | 2021-05-28 | 中山嘉明电力有限公司 | Automatic control method for steam turbine bypass |
| CN113835372B (en) * | 2021-08-27 | 2023-04-28 | 吉林省电力科学研究院有限公司 | Control system and method for electrode type electric boiler to assist primary frequency modulation of thermal power generating unit |
| CN113835372A (en) * | 2021-08-27 | 2021-12-24 | 吉林省电力科学研究院有限公司 | Control system and method for primary frequency modulation of auxiliary thermal power generating unit of electrode type electric boiler |
| CN115327893B (en) * | 2022-10-12 | 2023-01-13 | 国网山西省电力公司电力科学研究院 | Thermal power generating unit coordinated control system for adjusting main steam pressure set value |
| CN115327893A (en) * | 2022-10-12 | 2022-11-11 | 国网山西省电力公司电力科学研究院 | Thermal power generating unit coordinated control system for adjusting main steam pressure set value |
| CN115986849A (en) * | 2023-01-31 | 2023-04-18 | 华能国际电力股份有限公司日照电厂 | Primary frequency modulation self-optimization control method and system |
| CN115986849B (en) * | 2023-01-31 | 2023-09-12 | 华能国际电力股份有限公司日照电厂 | Primary frequency modulation self-optimization control method and system |
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