CN109857033A - Condensate throttling switching control method, device and computer equipment - Google Patents
Condensate throttling switching control method, device and computer equipment Download PDFInfo
- Publication number
- CN109857033A CN109857033A CN201910151207.1A CN201910151207A CN109857033A CN 109857033 A CN109857033 A CN 109857033A CN 201910151207 A CN201910151207 A CN 201910151207A CN 109857033 A CN109857033 A CN 109857033A
- Authority
- CN
- China
- Prior art keywords
- condensate throttling
- condensate
- load value
- generating unit
- difference
- 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.)
- Granted
Links
Abstract
This application involves a kind of condensate throttling switching control method, device and computer equipments.The described method includes: detecting the current operating load value of fired power generating unit when receiving condensate throttling control investment instruction；Obtain the difference of current operating load value and object run load value；Object run load value is that fired power generating unit is expected by load value to be achieved；When difference is greater than default fluctuation threshold, put into the control of condensate throttling switching, to, the application condensate throttling switching control method is when putting into the control of condensate throttling switching, the operating load fluctuation status (being embodied by current operating load value and the difference of object run load value) of the fired power generating unit of investment condensate throttling switching control stability can be agreed with, when operating load fluctuation is more than default fluctuation threshold, put into the control of condensate throttling switching, improve the stability of investment condensate throttling switching control, and then it is more conducive to the safe and stable operation of fired power generating unit.
Description
Technical field
This application involves condensate throttling frequency modulation technology fields, more particularly to a kind of condensate throttling switching controlling party
Method, device and computer equipment.
Background technique
In recent years, requirement of the power grid to power plant's frequency modulation, peaking performance is higher and higher, at present 660~1000MW of part (million
Watt) ultra supercritical coal-fired unit steam turbine high-pressure governing valve use flow restriction control mode, pass through reduce pitch aperture increase steam turbine
Heat consumption, but pitch aperture is excessive, can seriously affect unit AGC (Automatic Gain Control, Automatic Generation Control) and
Primary frequency control ability influences the examination of power grid.It is far below drum boiler additionally, due to the boiler heat storage ability of extra-supercritical unit,
In corresponding power grid frequency modulation, peak regulation demand, the combustion rate of boiler side adjusts the Load Regulation for tending not to keep up with steam turbine side, causes
The fluctuation of the key parameters such as main vapour pressure of boiler, Stream temperature degree, reheat steam temperature, influences unit safety stable operation.And
Since steam turbine uses the design of flow restriction control mode, it is desirable that steam turbine pitch is opened greatly as far as possible in the steady state, is further compressed
The amount of stored heat of boiler side, reduces the varying duty ability of extra-supercritical unit.
To solve the above-mentioned problems, currently used technology is condensate throttling frequency modulation technology.Condensate throttling frequency modulation skill
Art is to take into account the new technology of power grid frequency modulation, peak regulation demand and the safety of unit varying duty, economy, can make up for it currently super face
The defect of boundary's direct current Coordinated Control Systems, the contradiction reconciled between unit performance driving economy and power grid examination.The technology helps
Ultra supercritical direct current unit adds in the case where newly-increased fuel is converted into working medium generating capacity, boiler heat storage and insufficient situation not yet
Fast power of the assembling unit response, finds accumulation of heat out of therrmodynamic system other than boiler, to make up ultra supercritical direct current cooker heat storage capacity
Deficiency, still, during realization, inventor find traditional technology at least there are the following problems: traditional condensate throttling
The condensate throttling switching control of frequency modulation technology is unstable, influences the switching of condensate throttling.
Summary of the invention
Based on this, it is necessary in view of the above technical problems, provide one kind and be able to ascend condensate throttling switching control stabilization
Condensate throttling switching control method, device and the computer equipment of property.
A kind of condensate throttling switching control method, comprising the following steps:
When receiving condensate throttling control investment instruction, the current operating load value of fired power generating unit is detected；
Obtain the difference of current operating load value and object run load value；Object run load value is expected for fired power generating unit
By load value to be achieved；
When difference is greater than default fluctuation threshold, investment condensate throttling switching control.
It further comprises the steps of: in one of the embodiments,
When receiving condensate throttling control investment instruction, the operating load variation tendency of fired power generating unit is detected；
When difference is greater than default fluctuation threshold, putting into the step of condensate throttling switching controls includes:
When difference is greater than default fluctuation threshold and operating load variation tendency is in increase trend, condensate throttling is put into
Switching control.
It further comprises the steps of: in one of the embodiments,
When receiving condensate throttling control investment instruction, the steam turbine pitch valve position of fired power generating unit is detected；
When difference is greater than default fluctuation threshold, putting into the step of condensate throttling switching controls includes:
It is greater than default fluctuation threshold, operating load variation tendency in difference to be greater than in increase trend and steam turbine pitch valve position
When default valve position threshold value, investment condensate throttling switching control.
In one of the embodiments, when difference is greater than default fluctuation threshold, investment condensate throttling switching control
Step includes:
When difference is greater than default fluctuation threshold, controlled in putting into condensate throttling switching in preset time.
In one of the embodiments, when receiving condensate throttling control investment instruction, working as fired power generating unit is detected
Before the step of preceding operating load value, further comprise the steps of:
The operating parameter of fired power generating unit is detected, and when the result of detection is that operating parameter is normal, receives condensate throttling
Control investment instruction.
Operating parameter includes one of following parameter or any combination in one of the embodiments: deaerator level,
Low-pressure heater water level, condenser water level and condensed water precision processing system inlet pressure.
It further comprises the steps of: in one of the embodiments,
Detect the operating condition of fired power generating unit；
When the result of detection is that operating condition is abnormal or difference is less than or equal to default fluctuation threshold, excision is solidifying
Bear water throttling switching control.
A kind of condensate throttling switching control device, comprising:
Detection module, for detecting the current operation of fired power generating unit when receiving condensate throttling control investment instruction
Load value；
Computing module, for obtaining the difference of current operating load value and object run load value；Object run load value
It is expected by load value to be achieved for fired power generating unit；
Input control module, for when difference is greater than default fluctuation threshold, investment condensate throttling switching to be controlled.
A kind of dcs, including memory and processor, memory are stored with computer program, the processing
Device performs the steps of when executing the computer program
When receiving condensate throttling control investment instruction, the current operating load value of fired power generating unit is detected；
Obtain the difference of current operating load value and object run load value；Object run load value is expected for fired power generating unit
By load value to be achieved；
When difference is greater than default fluctuation threshold, investment condensate throttling switching control.
A kind of computer readable storage medium, is stored thereon with computer program, and the computer program is held by processor
It is performed the steps of when row
When receiving condensate throttling control investment instruction, the current operating load value of fired power generating unit is detected；
Obtain the difference of current operating load value and object run load value；Object run load value is expected for fired power generating unit
By load value to be achieved；
When difference is greater than default fluctuation threshold, investment condensate throttling switching control.
A technical solution in above-mentioned technical proposal is had the following advantages and beneficial effects:
By detecting the current operating load value of fired power generating unit when receiving condensate throttling control investment instruction；It obtains
Take the difference of current operating load value and object run load value；When difference is greater than default fluctuation threshold, condensed water section is put into
Flowing switching control, wherein object run load value is expected by load value to be achieved for fired power generating unit, thus, the application condensation
Water throttles switching control method when condensate throttling switching controls, and fired power generating unit can effectively be avoided to operate normally Shi Yinji
Condensate throttling switching control caused by group load small degree fluctuation, when operating load fluctuation is more than default fluctuation threshold,
Just investment condensate throttling switching control, improves the stability of investment condensate throttling switching control, and then is more conducive to
The safe and stable operation of fired power generating unit.
Detailed description of the invention
Fig. 1 is the first pass schematic diagram of condensate throttling switching control method in one embodiment；
Fig. 2 is the flow diagram that condensate throttling control investment instruction step is received in one embodiment；
Fig. 3 is the second procedure schematic diagram of condensate throttling switching control method in one embodiment；
Fig. 4 is the third flow diagram of condensate throttling switching control method in one embodiment；
Fig. 5 is the flow diagram that condensate throttling rate-determining steps are cut off in one embodiment；
Fig. 6 is the first structure block diagram of condensate throttling switching control device in one embodiment；
Fig. 7 is the second structural block diagram of condensate throttling switching control device in one embodiment；
Fig. 8 is the third structural block diagram of condensate throttling switching control device in one embodiment；
Fig. 9 is the internal structure chart of dcs in one embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
In order to which the condensate throttling switching control for solving traditional condensate throttling frequency modulation technology is unstable, condensed water section is influenced
The problem of switching of stream, in one embodiment, as shown in Figure 1, a kind of condensate throttling switching control method is provided, including
Following steps:
Step S110 detects the current operating load of fired power generating unit when receiving condensate throttling control investment instruction
Value.
Wherein, it in actual implementation the application condensate throttling switching control method, needs to dcs
Operation and control interface is adjusted, i.e., adds on the operation and control interface of dcs " condensate throttling control investment " and " solidifying
Bear water throttling control excision " button.It should be noted that in the prior art, dcs is for monitoring and controlling
Fired power generating unit.
When relevant staff clicks " condensate throttling control investment " button, dcs receives condensation
Water throttling control investment instruction, dcs detects the current operating load value of fired power generating unit, according to current operation
Load value judges the fluctuation situation of the operating load value of fired power generating unit.And " condensate throttling control is clicked in relevant staff
When system excision " button, dcs receives condensate throttling control excision instruction, excision condensate throttling control.
It should be noted that initial conditions of the condensate throttling control investment instruction for implementation the application step.
In a specific embodiment, as shown in Fig. 2, when receiving condensate throttling control investment instruction, detection
Before the step of current operating load value of fired power generating unit, further comprise the steps of:
Step S210 detects the operating parameter of fired power generating unit, and when the result of detection is that operating parameter is normal, receives solidifying
Bear water throttling control investment instruction.
It should be noted that in one example, operating parameter includes one of following parameter or any combination: deoxygenation
Device water level, low-pressure heater water level, condenser water level and condensed water precision processing system inlet pressure.
The problem for causing operating parameter out-of-limit in order to avoid the control of continuous condensate throttling, in a condensate throttling
It to allow operating parameter to restore normal every certain time after control, just carry out condensate throttling next time and control.
Step S120 obtains the difference of current operating load value and object run load value；Object run load value is fire
Motor group is expected by load value to be achieved.
Wherein, object run load value is to reach dcs to instruct fired power generating unit load value to be achieved,
I.e. dcs to fired power generating unit send unit load instruction, fired power generating unit by adjusting operating states of the units (including
The measures such as the adjustment of main vapour valve aperture, fuel adjustment, condensate throttling control) it is instructed to meet unit load.In no unit
When load instruction, the operating load value of fired power generating unit can fluctuate in range by a small margin, and only fluctuating range is more than and presets
Fluctuation threshold, be just considered as fired power generating unit have issued load adjustment instruction so that dcs is according to load tune
Whole instruction investment condensate throttling switching control.By detecting current operating load value, and use current operating load value and mesh
The difference of operating load value is marked to indicate the fluctuation situation of the operating load value of fired power generating unit, effectively fired power generating unit can be avoided to exist
Condensate throttling switching controls because of caused by unit load fluctuation within a narrow range when normal operation.
Step S130, when difference is greater than default fluctuation threshold, investment condensate throttling switching control.
Wherein, default fluctuation threshold is set in dcs in advance, when difference is greater than default fluctuation threshold,
When the fluctuation situation of the namely operating load value of fired power generating unit has been more than default fluctuation threshold, the control of condensate throttling switching is put into
System.It should be noted that default fluctuation threshold can be determined according to actual needs.In one example, default fluctuation threshold can be
3MW (megawatt), 5MW or 8MW.
Since the key property of condensate throttling control is in response to that the time is short, adjustment speed is accelerated, but regulating time and
Adjustable range is limited, and the adjustment process of the adjustment process of the turbine-boiler coordinated control system of fired power generating unit and condensate throttling control
On the contrary, the two can be very good complementation, in order to play the effect of condensate throttling control well, in a specific embodiment
In, when difference is greater than default fluctuation threshold, putting into the step of condensate throttling switching controls includes: to be greater than default wave in difference
When dynamic threshold value, controlled in putting into condensate throttling switching in preset time.Wherein, preset time is that fired power generating unit can be rung completely
The time for the load instruction for answering dcs to issue.Specifically, the effective time that condensate throttling controls is set in
In preset time, fired power generating unit is enable to respond quickly load instruction within a preset time, steps out and adjusts dead zone, is assisted later by machine furnace
Adjust control system to carry out Load Regulation and compensation, at this point, condensate throttling control will be removed, to the oxygen-eliminating device of fired power generating unit into
Row moisturizing, for condensate throttling next time controls and prepares.In one example, preset time is 60s (second).
In each embodiment of the application condensate throttling switching control method, by receiving condensate throttling control throwing
When entering to instruct, the current operating load value of fired power generating unit is detected；Obtain the difference of current operating load value and object run load value
Value；When difference is greater than default fluctuation threshold, investment condensate throttling switching control, wherein object run load value is thermoelectricity
Unit is expected by load value to be achieved, thus, the application condensate throttling switching control method is thrown in investment condensate throttling
When cutting control, fired power generating unit condensed water section because of caused by unit load fluctuation within a narrow range when operating normally can be effectively avoided
Switching control is flowed, when operating load fluctuation is more than default fluctuation threshold, the control of condensate throttling switching is just put into, improves throwing
Enter the stability of condensate throttling switching control, and then is more conducive to the safe and stable operation of fired power generating unit.
In one embodiment, as described in Figure 3, it further comprises the steps of:
Step S310 detects the operating load variation of fired power generating unit when receiving condensate throttling control investment instruction
Trend；
Step S320 obtains the difference of current operating load value and object run load value；Object run load value is fire
Motor group is expected by load value to be achieved；
When difference is greater than default fluctuation threshold, putting into the step of condensate throttling switching controls includes:
Step S330, when difference is greater than default fluctuation threshold and operating load variation tendency is in increase trend, investment is solidifying
Bear water throttling switching control.
It should be noted that the step S320 in Fig. 3 is identical as the step S120 in Fig. 1, details are not described herein again.
Wherein, in this embodiment, dcs is when receiving condensate throttling control investment instruction, not only
The current operating load value for detecting fired power generating unit, will also detect the operating load variation tendency of fired power generating unit.
It should be noted that operating load variation tendency is that operation of the fired power generating unit under dcs adjusting is negative
Lotus situation of change.In one example, operating load variation tendency is according to object run load value and dcs
The unit load instruction of sending carries out difference and calculates acquisition.Wherein, unit load instruction is used to indicate fired power generating unit operation is negative
Lotus is adjusted to the load value of unit load instruction.
Specifically, operating load variation tendency can be divided into reduction trend or increase trend, wherein reduction trend is exactly thermoelectricity
Under dcs adjusting, operating load is reduced unit, under this trend, proper, the vapour as long as boiler combustion feedovers
Machine pitch is begun to shut off from 50% aperture, and precision and the time for controlling operating load are all guaranteed, therefore, can not consider to transport
Row load is controlled by condensate throttling under reduction trend and carries out operating load control.
And it needs to consider that operating load is controlled under increase trend by condensate throttling and carries out operating load control.Exist
Meet difference simultaneously greater than default fluctuation threshold and operating load variation tendency is in the case where increase trend, puts into condensed water
Throttle switching control.
The application condensate throttling switching control method, will affect the operating load of condensate throttling switching control stability
Variation tendency more comprehensively avoids influence condensate throttling as the restrictive condition of investment condensate throttling switching control
The factor of switching control stability further improves the stability of investment condensate throttling switching control, while preferably simultaneous
Power grid frequency modulation, peak regulation demand and the safety of fired power generating unit varying duty, the requirement of economy are cared for, current ultra supercritical DC generator is made up
The defect of group coordinated control system, the contradiction reconciled between unit performance driving economy and power grid examination accelerate power of the assembling unit response
Rate preferably meets the requirement of power plant's frequency modulation, peaking performance.
In one embodiment, as shown in figure 4, further comprising the steps of:
Step S410 detects the steam turbine pitch valve position of fired power generating unit when receiving condensate throttling control investment instruction；
Step S420 obtains the difference of current operating load value and object run load value；Object run load value is fire
Motor group is expected by load value to be achieved；
When difference is greater than default fluctuation threshold, putting into the step of condensate throttling switching controls includes:
Step S430 is greater than default fluctuation threshold, operating load variation tendency in increase trend and steam turbine pitch in difference
When valve position is greater than default valve position threshold value, investment condensate throttling switching control.
It should be noted that the step S420 in Fig. 4 is identical as the step S120 in Fig. 1, details are not described herein again.
Wherein, in this embodiment, dcs is when receiving condensate throttling control investment instruction, not only
The current operating load value for detecting fired power generating unit, will also detect the operating load variation tendency of fired power generating unit, also to detect fire
The steam turbine pitch valve position of motor group.
It should be noted that in the lesser situation of steam turbine pitch aperture, after carrying out condensate throttling control, fired power generating unit
Power rise can exceed that the load value of unit load instruction, steam turbine pitch will be turned down at this time, turn down steam turbine tune
Door and condensate throttling control can all have an impact the actual power of fired power generating unit, in order to reduce above-mentioned two manipulated variable to fire
The influence of motor group actual power, in the present embodiment, further using steam turbine pitch valve position as investment condensate throttling control
Restrictive condition just put into condensate throttling switching only when steam turbine pitch valve position is more than default valve position threshold value and control.Its
In, preset valve position threshold value depending on actual needs, in one example, presetting valve position threshold value is 75% aperture.
The application condensate throttling switching control method will affect the steam turbine pitch of condensate throttling switching control stability
Valve position, as the restrictive condition of investment condensate throttling switching control, so that comprehensive consider to influence condensate throttling control comprehensively
The factor of switching avoids considering that fired power generating unit is not caused to be made in carrying out condensate throttling control process comprehensively due to influence factor
At fluctuation of service the phenomenon that, while increase condensate throttling control investment restrictive condition, reduce condensate throttling control
Unnecessary investment and influence unit normal operation.
Investment condensate throttling control be in order to meet power grid frequency modulation, peak regulation, it is only normal in thermal power unit operation state
In the case where just allow to put into condensate throttling control, cannot be by solidifying in the abnormal situation of thermal power unit operation state
Throttling control is born water to realize power grid frequency modulation, peak regulation, and needs to cut off condensate throttling control, in one embodiment, such as Fig. 5
It is shown, it further comprises the steps of:
Step S510 detects the operating condition of fired power generating unit；
Step S520 is that operating condition is abnormal or difference is less than or equal to default fluctuation threshold in the result of detection
When, excision condensate throttling switching control.
It should be noted that operating condition is the operating condition of each equipment in fired power generating unit.Specifically, operating condition includes
The specified load of condensate polishing treatment inlet pressure, low-pressure heater water level, the quantity of condensate pump operation, unit load instruction
Amount, condensing water flow, condenser hotwell water level, deaerator level, the state of low voltage bypass valve, condensed water minimum flow regulating valve
Etc. equipment operating condition.
When operating condition is abnormal, excision condensate throttling switching control.Specifically, any below operation on-the-job satisfaction
Condition: condensate polishing treatment inlet pressure is low, low-pressure heater water level high high or low low, 2 or 0 condensate pump operation,
Unit load command M WD lower than 50% at full capacity, high high or low low, the condenser hotwell water level of condensing water flow it is high it is high or low it is low,
High high or low low, the low voltage bypass the valve opening state of deaerator level, condensed water minimum flow regulating valve manually control, operating condition
Belong to abnormal.
It is above-mentioned only to illustrate the abnormal excision condensate throttling control of operating condition, there is one of following situations or any
Combination can also cut off condensate throttling control: it is non-increasing that difference is less than or equal to default fluctuation threshold, operating load variation tendency
Trend, steam turbine pitch valve position are less than or equal to default valve position threshold value.
The application condensate throttling switching control method, in order to avoid the unnecessary investment of condensate throttling control, full
Condensate throttling control is cut off in the case where sufficient condition, specifically meeting one of following situations or any combination can also cut off
Condensate throttling control: difference is less than or equal to default fluctuation threshold, the non-increasing trend of operating load variation tendency, steam turbine pitch
Valve position is abnormal less than or equal to default valve position threshold value, operating condition, excision condensate throttling control, so as to utmostly
The maloperation that put into condensate throttling control is reduced, guarantees the safe and reliable operation of fired power generating unit.
It should be understood that although each step in the flow chart of Fig. 1-5 is successively shown according to the instruction of arrow,
These steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly stating otherwise herein, these steps
Execution there is no stringent sequences to limit, these steps can execute in other order.Moreover, at least one in Fig. 1-5
Part steps may include that perhaps these sub-steps of multiple stages or stage are not necessarily in synchronization to multiple sub-steps
Completion is executed, but can be executed at different times, the execution sequence in these sub-steps or stage is also not necessarily successively
It carries out, but can be at least part of the sub-step or stage of other steps or other steps in turn or alternately
It executes.
In one embodiment, as shown in fig. 6, providing a kind of condensate throttling switching control device, comprising:
Detection module 61, for detecting the current fortune of fired power generating unit when receiving condensate throttling control investment instruction
Row load value；
Computing module 63, for obtaining the difference of current operating load value and object run load value；Object run load
Value is that fired power generating unit is expected by load value to be achieved；
Input control module 65, for when difference is greater than default fluctuation threshold, investment condensate throttling switching to be controlled.
In one embodiment, detection module 61 are also used to the detection when receiving condensate throttling control investment instruction
The operating load variation tendency of fired power generating unit；
Input control module 65 is also used to be greater than default fluctuation threshold and operating load variation tendency in increase in difference
When trend, investment condensate throttling switching control.
In one embodiment, detection module 61 are also used to the detection when receiving condensate throttling control investment instruction
The steam turbine pitch valve position of fired power generating unit；
Input control module 65 is also used to be greater than default fluctuation threshold, operating load variation tendency in difference and become in increase
When gesture and steam turbine pitch valve position are greater than default valve position threshold value, investment condensate throttling switching control.
In one embodiment, input control module 65 is also used to when difference is greater than default fluctuation threshold, when default
Interior investment condensate throttling switching control.
In one embodiment, as shown in fig. 7, condensate throttling switching control device, further includes:
Command reception module 71, for detecting the operating parameter of fired power generating unit, and the result of detection be operating parameter just
Chang Shi receives condensate throttling control investment instruction.
In one embodiment, as shown in figure 8, condensate throttling switching control device, further includes:
Control module 81 is cut off, for detecting the operating condition of fired power generating unit；The result of detection be operating condition not just
When often or difference is less than or equal to default fluctuation threshold, excision condensate throttling switching control.
Specific restriction about condensate throttling switching control device may refer to above for condensate throttling switching
The restriction of control method, details are not described herein.Modules in above-mentioned condensate throttling switching control device can whole or portion
Divide and is realized by software, hardware and combinations thereof.Above-mentioned each module can be embedded in the form of hardware or independently of computer equipment
In processor in, can also be stored in a software form in the memory in computer equipment, in order to processor calling hold
The corresponding operation of the above modules of row.
In one embodiment, a kind of dcs is provided, internal structure chart can be as shown in Figure 9.It should
Dcs includes processor, memory, network interface, display screen and the input unit connected by system bus.
Wherein, the processor of the dcs is for providing calculating and control ability.The memory of the dcs
Including non-volatile memory medium, built-in storage.The non-volatile memory medium is stored with operating system and computer program.It should
Built-in storage provides environment for the operation of operating system and computer program in non-volatile memory medium.The distributed AC servo system
The network interface of system is used to communicate with external terminal by network connection.The computer program is executed by processor Shi Yishi
A kind of existing condensate throttling switching control method.The display screen of the dcs can be liquid crystal display or electronics
Ink display screen, the input unit of the dcs can be the touch layer covered on display screen, be also possible to be distributed
Key, trace ball or the Trackpad being arranged on formula control system shell can also be external keyboard, Trackpad or mouse etc..
It will be understood by those skilled in the art that structure shown in Fig. 9, only part relevant to application scheme is tied
The block diagram of structure does not constitute the restriction for the dcs being applied thereon to application scheme, specific distributed
Control system may include perhaps combining certain components or with different portions than more or fewer components as shown in the figure
Part arrangement.
In one embodiment, a kind of computer equipment, including memory and processor are provided, is stored in memory
Computer program, the processor perform the steps of when executing computer program
When receiving condensate throttling control investment instruction, the current operating load value of fired power generating unit is detected；
Obtain the difference of current operating load value and object run load value；Object run load value is expected for fired power generating unit
By load value to be achieved；
When difference is greater than default fluctuation threshold, investment condensate throttling switching control.
In one embodiment, it is also performed the steps of when processor executes computer program
When receiving condensate throttling control investment instruction, the operating load variation tendency of fired power generating unit is detected；
When difference is greater than default fluctuation threshold and operating load variation tendency is in increase trend, condensate throttling is put into
Switching control.
In one embodiment, it is also performed the steps of when processor executes computer program
When receiving condensate throttling control investment instruction, the steam turbine pitch valve position of fired power generating unit is detected；
It is greater than default fluctuation threshold, operating load variation tendency in difference to be greater than in increase trend and steam turbine pitch valve position
When default valve position threshold value, investment condensate throttling switching control.
In one embodiment, it is also performed the steps of when processor executes computer program
When difference is greater than default fluctuation threshold, controlled in putting into condensate throttling switching in preset time.
In one embodiment, it is also performed the steps of when processor executes computer program
The operating parameter of fired power generating unit is detected, and when the result of detection is that operating parameter is normal, receives condensate throttling
Control investment instruction.
In one embodiment, it is also performed the steps of when processor executes computer program
Detect the operating condition of fired power generating unit；
When the result of detection is that operating condition is abnormal or difference is less than or equal to default fluctuation threshold, excision is solidifying
Bear water throttling switching control.
In one embodiment, a kind of computer readable storage medium is provided, computer program is stored thereon with, is calculated
Machine program performs the steps of when being executed by processor
When receiving condensate throttling control investment instruction, the current operating load value of fired power generating unit is detected；
Obtain the difference of current operating load value and object run load value；Object run load value is expected for fired power generating unit
By load value to be achieved；
When difference is greater than default fluctuation threshold, investment condensate throttling switching control.
In one embodiment, it is also performed the steps of when computer program is executed by processor
When receiving condensate throttling control investment instruction, the operating load variation tendency of fired power generating unit is detected；
When difference is greater than default fluctuation threshold and operating load variation tendency is in increase trend, condensate throttling is put into
Switching control.
In one embodiment, it is also performed the steps of when computer program is executed by processor
When receiving condensate throttling control investment instruction, the steam turbine pitch valve position of fired power generating unit is detected；
It is greater than default fluctuation threshold, operating load variation tendency in difference to be greater than in increase trend and steam turbine pitch valve position
When default valve position threshold value, investment condensate throttling switching control.
In one embodiment, it is also performed the steps of when computer program is executed by processor
When difference is greater than default fluctuation threshold, controlled in putting into condensate throttling switching in preset time.
In one embodiment, it is also performed the steps of when computer program is executed by processor
The operating parameter of fired power generating unit is detected, and when the result of detection is that operating parameter is normal, receives condensate throttling
Control investment instruction.
In one embodiment, it is also performed the steps of when computer program is executed by processor
Detect the operating condition of fired power generating unit；
When the result of detection is that operating condition is abnormal or difference is less than or equal to default fluctuation threshold, excision is solidifying
Bear water throttling switching control.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein,
To any reference of memory, storage, database or other media used in each embodiment provided herein,
Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms,
Such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing
Type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of condensate throttling switching control method, which comprises the following steps:
When receiving condensate throttling control investment instruction, the current operating load value of fired power generating unit is detected；
Obtain the difference of current the operating load value and object run load value；The object run load value is the thermoelectricity
Unit is expected by load value to be achieved；
When the difference is greater than default fluctuation threshold, investment condensate throttling switching control.
2. condensate throttling switching control method according to claim 1, which is characterized in that further comprise the steps of:
When receiving the condensate throttling control investment instruction, the operating load variation tendency of the fired power generating unit is detected；
When the difference is greater than default fluctuation threshold, putting into the step of condensate throttling switching controls includes:
When the difference is greater than the default fluctuation threshold and the operating load variation tendency is in increase trend, investment is solidifying
Bear water throttling switching control.
3. condensate throttling switching control method according to claim 2, which is characterized in that further comprise the steps of:
When receiving the condensate throttling control investment instruction, the steam turbine pitch valve position of the fired power generating unit is detected；
When the difference is greater than default fluctuation threshold, putting into the step of condensate throttling switching controls includes:
It is greater than the default fluctuation threshold, the operating load variation tendency in increase trend and the steam turbine in the difference
When pitch valve position is greater than default valve position threshold value, investment condensate throttling switching control.
4. condensate throttling switching control method according to claim 1, which is characterized in that be greater than in the difference default
When fluctuation threshold, putting into the step of condensate throttling switching controls includes:
When the difference is greater than the default fluctuation threshold, controlled in putting into condensate throttling switching in preset time.
5. condensate throttling switching control method according to any one of claims 1 to 4, which is characterized in that receiving
When condensate throttling control investment instruction, before the step of detecting the current operating load value of fired power generating unit, further comprise the steps of:
The operating parameter of the fired power generating unit is detected, and when the result of the detection is that the operating parameter is normal, receives institute
State condensate throttling control investment instruction.
6. condensate throttling switching control method according to claim 5, which is characterized in that the operating parameter include with
One of lower parameter or any combination: deaerator level, low-pressure heater water level, condenser water level and condensate polishing treatment system
System inlet pressure.
7. condensate throttling switching control method according to claim 5, which is characterized in that further comprise the steps of:
Detect the operating condition of the fired power generating unit；
It is that the operating condition is abnormal or the difference is less than or equal to the default fluctuation threshold in the result of the detection
When value, excision condensate throttling switching control.
8. a kind of condensate throttling switching control device characterized by comprising
Detection module, for detecting the current operating load of fired power generating unit when receiving condensate throttling control investment instruction
Value；
Computing module, for obtaining the difference of current the operating load value and object run load value；The object run is negative
Charge values are that the fired power generating unit is expected by load value to be achieved；
Input control module, for when the difference is greater than default fluctuation threshold, investment condensate throttling switching to be controlled.
9. a kind of dcs, including memory and processor, the memory are stored with computer program, feature
It is, the step of processor realizes any one of claims 1 to 7 the method when executing the computer program.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of method described in any one of claims 1 to 7 is realized when being executed by processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151207.1A CN109857033B (en) | 2019-02-28 | 2019-02-28 | Condensate throttling switching control method and device and computer equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151207.1A CN109857033B (en) | 2019-02-28 | 2019-02-28 | Condensate throttling switching control method and device and computer equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109857033A true CN109857033A (en) | 2019-06-07 |
| CN109857033B CN109857033B (en) | 2020-10-09 |
Family
ID=66899319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910151207.1A Active CN109857033B (en) | 2019-02-28 | 2019-02-28 | Condensate throttling switching control method and device and computer equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109857033B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120992A (en) * | 2019-12-05 | 2020-05-08 | 国网河北省电力有限公司电力科学研究院 | Thermal energy storage system for enhancing unit operation flexibility and peak shaving output evaluation method |
| CN112308302A (en) * | 2020-10-22 | 2021-02-02 | 新奥数能科技有限公司 | Boiler operation load parameter adjusting method and device, electronic equipment and storage medium |
| CN112539089A (en) * | 2020-11-10 | 2021-03-23 | 北方魏家峁煤电有限责任公司 | Low-voltage bypass control method and device and electronic equipment |
| CN113031681A (en) * | 2021-03-03 | 2021-06-25 | 江苏南通发电有限公司 | Condensation depth frequency conversion optimization method for thermal generator set |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588010A (en) * | 2012-02-21 | 2012-07-18 | 浙江省电力试验研究院 | Method for estimating throttling frequency-modulation load characteristics of condensed water for thermoelectric generating set |
| CN104714566A (en) * | 2015-01-08 | 2015-06-17 | 华北电力大学 | Condensation water throttle control system and safety control method thereof |
| CN104932450A (en) * | 2015-04-15 | 2015-09-23 | 华北电力大学 | Thermal power generating unit coordination control method based on condensate throttling |
| CN106368749A (en) * | 2016-09-14 | 2017-02-01 | 上海明华电力技术工程有限公司 | Primary frequency regulation load increase method of participation units through cutting low-pressure heaters from water side |
| CN107024914A (en) * | 2017-06-16 | 2017-08-08 | 国网河南省电力公司电力科学研究院 | Fired power generating unit condensate throttling participates in primary frequency modulation control system and operation method |
| CN107024883A (en) * | 2017-05-03 | 2017-08-08 | 中国神华能源股份有限公司 | Fired power generating unit load adjusting method and device and storage medium, processor |
| CN107143844A (en) * | 2017-05-27 | 2017-09-08 | 杭州意能电力技术有限公司 | A kind of fired power generating unit control method and system based on condensate throttling |
| CN107905852A (en) * | 2017-11-02 | 2018-04-13 | 国网安徽省电力公司电力科学研究院 | A kind of method of the wide load condensate throttling frequency modulation of fired power generating unit |
| CN109343409A (en) * | 2018-10-30 | 2019-02-15 | 华能国际电力股份有限公司福州电厂 | A kind of supplementary controlled system and method for full admission unit primary frequency modulation |
-
2019
- 2019-02-28 CN CN201910151207.1A patent/CN109857033B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588010A (en) * | 2012-02-21 | 2012-07-18 | 浙江省电力试验研究院 | Method for estimating throttling frequency-modulation load characteristics of condensed water for thermoelectric generating set |
| CN104714566A (en) * | 2015-01-08 | 2015-06-17 | 华北电力大学 | Condensation water throttle control system and safety control method thereof |
| CN104932450A (en) * | 2015-04-15 | 2015-09-23 | 华北电力大学 | Thermal power generating unit coordination control method based on condensate throttling |
| CN106368749A (en) * | 2016-09-14 | 2017-02-01 | 上海明华电力技术工程有限公司 | Primary frequency regulation load increase method of participation units through cutting low-pressure heaters from water side |
| CN107024883A (en) * | 2017-05-03 | 2017-08-08 | 中国神华能源股份有限公司 | Fired power generating unit load adjusting method and device and storage medium, processor |
| CN107143844A (en) * | 2017-05-27 | 2017-09-08 | 杭州意能电力技术有限公司 | A kind of fired power generating unit control method and system based on condensate throttling |
| CN107024914A (en) * | 2017-06-16 | 2017-08-08 | 国网河南省电力公司电力科学研究院 | Fired power generating unit condensate throttling participates in primary frequency modulation control system and operation method |
| CN107905852A (en) * | 2017-11-02 | 2018-04-13 | 国网安徽省电力公司电力科学研究院 | A kind of method of the wide load condensate throttling frequency modulation of fired power generating unit |
| CN109343409A (en) * | 2018-10-30 | 2019-02-15 | 华能国际电力股份有限公司福州电厂 | A kind of supplementary controlled system and method for full admission unit primary frequency modulation |
Non-Patent Citations (1)
| Title |
|---|
| 宁福军: "基于凝结水节流的超临界机组协调系统智能优化", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120992A (en) * | 2019-12-05 | 2020-05-08 | 国网河北省电力有限公司电力科学研究院 | Thermal energy storage system for enhancing unit operation flexibility and peak shaving output evaluation method |
| CN111120992B (en) * | 2019-12-05 | 2022-04-12 | 国网河北省电力有限公司电力科学研究院 | Thermal energy storage system for enhancing unit operation flexibility and peak shaving output evaluation method |
| CN112308302A (en) * | 2020-10-22 | 2021-02-02 | 新奥数能科技有限公司 | Boiler operation load parameter adjusting method and device, electronic equipment and storage medium |
| CN112308302B (en) * | 2020-10-22 | 2024-04-19 | 新奥数能科技有限公司 | Boiler operation load parameter adjustment method and device, electronic equipment and storage medium |
| CN112539089A (en) * | 2020-11-10 | 2021-03-23 | 北方魏家峁煤电有限责任公司 | Low-voltage bypass control method and device and electronic equipment |
| CN112539089B (en) * | 2020-11-10 | 2023-03-28 | 北方魏家峁煤电有限责任公司 | Low-voltage bypass control method and device and electronic equipment |
| CN113031681A (en) * | 2021-03-03 | 2021-06-25 | 江苏南通发电有限公司 | Condensation depth frequency conversion optimization method for thermal generator set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109857033B (en) | 2020-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109857033A (en) | Condensate throttling switching control method, device and computer equipment | |
| JP5030384B2 (en) | Drum water level control method and apparatus for drum type boiler | |
| CN110212552B (en) | Control method and system for primary frequency modulation of thermal generator set | |
| KR101862893B1 (en) | Method for operating a combined gas and steam turbine system, gas and steam turbine system for carrying out said method, and corresponding control device | |
| CN110318826B (en) | Load shedding control system of bypass system of thermal power generating unit in isolated grid mode | |
| CN104632302A (en) | Condensing steam turbine sliding pressure operation curve testing/implementation method | |
| CN104714526A (en) | Load control system and method based on condensation water throttling governing pre-estimation | |
| CN112039091B (en) | Primary frequency modulation control method based on zero number high-order addition | |
| CN109378833A (en) | A method of unit fast frequency hopping is realized by control extraction flow of steam | |
| US9885256B2 (en) | Method for optimization of control and fault analysis in a thermal power plant | |
| CN110107489B (en) | Control method, system and unit for condensate water pump | |
| US20160211037A1 (en) | Nuclear reactor power regulator and method | |
| JPH10292902A (en) | Main steam temperature controller | |
| CN111564871B (en) | Self-adaptive load-changing instruction generation method and device based on thermal inertia of coal-fired power plant | |
| CN108518252B (en) | Load regulation control method and device for steam turbine power generation system | |
| JP6775070B1 (en) | Power plant control device, power plant, and power plant control method | |
| JP2559377B2 (en) | Controller for steam generation plant | |
| CN113027545B (en) | Bypass control method for stabilizing steam drum liquid level of gas-steam combined cycle unit | |
| CN115199519A (en) | Frequency control method and system of variable-frequency coagulation pump | |
| CN109814380B (en) | Load change rate constant value optimization system and method for automatic power generation control system of thermal power generating unit | |
| JP2007132630A (en) | Boiler reheating steam temperature control device and method | |
| CN117553288A (en) | Cooling water flow control method for turbine cooling air system of gas turbine | |
| CN111506002A (en) | Thermal power generating unit regulating valve regulating characteristic linearization processing method, system and medium | |
| JP2645129B2 (en) | Condensate recirculation flow control device | |
| CN116293625A (en) | Control method, device, equipment and storage medium for converting dry state into wet state of thermal power generating unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |