CN104464860A - Nuclear power station steam turbine power measuring method and system - Google Patents
Nuclear power station steam turbine power measuring method and system Download PDFInfo
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- CN104464860A CN104464860A CN201410719943.XA CN201410719943A CN104464860A CN 104464860 A CN104464860 A CN 104464860A CN 201410719943 A CN201410719943 A CN 201410719943A CN 104464860 A CN104464860 A CN 104464860A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention discloses a nuclear power station steam turbine power measuring method which comprises the steps that a steam turbine pressure transmitter measures steam turbine impulse stage pressure, according to a transfer function, the steam turbine impulse stage pressure is converted to a steam turbine load, the transfer function is PTU = A0 + A1(TP) + A2(TP)2, wherein PTU is the steam turbine load, TP is the steam turbine impulse stage pressure, A0, A1 and A2 are experience coefficients, and steam turbine power is obtained according to the steam turbine load. According to the nuclear power station steam turbine power measuring method, instrument features are subjected to verifying through the transfer function, and the problem that errors between measured data and practical data are large is effectively avoided. In addition, the invention further discloses another nuclear power station steam turbine power measuring method and a corresponding system.
Description
Technical field
The invention belongs to technical field of nuclear power, more particularly, the present invention relates to a kind of steam turbine for nuclear power station power measurement method and system.
Background technology
The heat that the controlled self-sustaining chain fission reaction that nuclear power station utilizes nuclear fuel to occur discharges is as heat resource power generation.The heat of reactor core nuclear fuel release passes through the water of the primary Ioops of reactor core, and primary Ioops water is by the water of heat by steam generator heating secondary circuit, and make it to become saturated steam, red switch turbodynamo does work.In whole process, the embodiment mode of energy is respectively " core power ", " steam turbine power ", " electric power ".The control of these three parameters respectively by RGL (rod control and excellent position system) and the realization of GRE (steam turbine control system) system, wherein comprises RPN (Nuclear Instrument system), RCP (reactor coolant loop), KME (performance test data acquisition system (DAS)), KDO (Test Data Acquisition System) system certainly to the measurement of above parameter, calculating.The object that core power controls is that the power that reactor core is produced is equal with the power that evaporator absorbs, the power that evaporator absorbs is mainly used in steam turbine acting and discharge, secondary circuit power is referred to as in steam turbine acting and discharge, so the power (primary Ioops power) that the object that core power controls namely makes reactor core produce and secondary circuit power accurately match.Directly can not change between core power and electric power, but just can accomplish the conversion of merit by the configuration conversion of medium, this medium and steam turbine.
Steam turbine is mechanical work by the energy conversion by steam, and then be converted into electric power.Steam turbine power metering system has a variety of, and have and directly measure and indirect inspection, concrete mode has: the power surveying generator, surveys steam turbine chopped-off head admission pressure, surveys steam turbine chopped-off head charge flow rate etc.In the nuclear island control system of nuclear power station, participate in control or the protection of multiple system as the steam turbine chopped-off head admission pressure characterizing steam turbine power.GRE022/023/024MP (steam turbine for nuclear power station pressure unit) MEASUREMENT OF STEAM turbine chopped-off head boost pressure signal and then be converted to steam turbine power signal; participate in RGL (rod control and excellent position system); ARE (main feedwater flow control system); GCT (turbine bypass system); VVP (main steam system) Systematical control or protection, therefore the accuracy of steam turbine power signal has great meaning to nuclear power station economy and security.
At present, the electric power that existing Turbo-generator Set sends can reflect the steady-state value of its steam power preferably, but its change to steam power response is slower, anti-phenomenon of adjusting can be produced again (to be equivalent to introduce reverse differentiation element in original velocity feedback passage simultaneously, system is made to start regulate the stage to produce and adjusted the feedback signal that object is contrary, thus produce and the contrary action of expectation, i.e. " counter adjust phenomenon ".In part nuclear power station project, the steam turbine power that electric power characterizes is used for the monitoring link that core power controls.Before steam turbine chopped-off head directly there is the relation of approximately linear in vapor pressure and steam power, and can obtain the good steam turbine power signal of dynamic perfromance by measuring vapor pressure, the steam turbine power that pressure characterizes is used for core power control loop joint; Or characterize steam turbine power by measuring steam turbine high-pressure cylinder chopped-off head admission pressure, for participating in the important Control protection logics of nuclear island such as steam generator water level control, the control of turbine bypass system discharge of steam, water level control of pressurizer, the control of temperature regulating rod, P13 and the high protection of main steam flow.Different nuclear steam turbine groups, chopped-off head admission pressure is different from the corresponding relation of steam turbine power, need regulate in the debug phase according to actual conditions.Although what measure is chopped-off head admission pressure, the 4 ~ 20mA signal exported is the steam turbine power signal of directly corresponding 0 ~ 120%FP.Due to the importance of this signal and the diversity of purposes, ensure that the accuracy of signal source and the effect of consistance on control and protection of each channel signal have important impact, and greatly can reduce the routine work amount of operation maintenance personnel.
Steam turbine for nuclear power station pressure unit is converted into thermal power the mechanism of qi chopped-off head admission pressure measured, and then realizes the sign of steam turbine power.For improving the accuracy of sign further, generally need to carry out field adjustable, at present, find in field adjustable that output power and real power have deviation, deviation is even up to 6%FP, and the requirement being less than 2%FP with standard deviation is very far away.Measure thermal power PMP and true thermal power Phb deviation and reach 6%FP, true MEASUREMENT OF STEAM turbine power failed by steam turbine for nuclear power station pressure unit.How to realize the Measurement accuracy to steam turbine power, avoiding the power of measurement and real power to there is relatively large deviation, is problem demanding prompt solution.
Summary of the invention
The object of the invention is to: in steam turbine for nuclear power station power measurement process, for steam turbine for nuclear power station regulating system, a kind of efficient, reliable steam turbine power measuring technique is provided.
In order to realize foregoing invention object, the invention provides a kind of steam turbine for nuclear power station power measurement method, described method comprises:
According to the initial relation curve between the steam turbine power obtained and chopped-off head admission pressure, calculate the corresponding relation of steam turbine power and pressure;
Steam turbine pressure transmitter is demarcated first according to described corresponding relation;
Steam turbine high-pressure cylinder chopped-off head admission pressure is measured according to described steam turbine pressure transmitter;
Steam turbine power is obtained according to described chopped-off head admission pressure.
One as steam turbine for nuclear power station power measurement method of the present invention is improved, and described method also comprises:
Steam turbine real power, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current is obtained by heat balance test.
One as steam turbine for nuclear power station power measurement method of the present invention is improved, and described method also comprises:
Obtain steam turbine real power according to described, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current obtain steam turbine power (0-120%FP) and chopped-off head initial steam pressure upgrades relation curve.
One as steam turbine for nuclear power station power measurement method of the present invention is improved, and described method also comprises:
According to the described corresponding relation obtaining steam turbine real power, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current acquisition chopped-off head initial steam pressure and electric current.
One as steam turbine for nuclear power station power measurement method of the present invention is improved, and described method also comprises:
Carry out second time according to the corresponding relation of described renewal relation curve or chopped-off head initial steam pressure and electric current to steam turbine pressure transmitter to demarcate.
In order to realize foregoing invention object, invention further provides a kind of steam turbine for nuclear power station power measurement method, the method comprises:
Steam turbine pressure transmitter MEASUREMENT OF STEAM turbine impulse type stage pressure;
According to transport function, described steam turbine impulse type stage pressure is converted into steam turbine load, described transport function is specially P
tU=A
0+ A
1(TP)+A
2(TP)
2, wherein P
tUfor steam turbine load, TP is steam turbine impulse type stage pressure, A
0,a
1,a
2for experience factor;
Steam turbine power is obtained according to described steam turbine load.
One as steam turbine for nuclear power station power measurement method of the present invention is improved, and described steam turbine pressure transmitter MEASUREMENT OF STEAM turbine impulse type stage pressure comprises:
Steam turbine pressure transmitter obtains the pressure signal of manometer, according to described pressure signal output current signal.
One as steam turbine for nuclear power station power measurement method of the present invention is improved, and described method also comprises:
According to described pressure signal and current signal, the corresponding relation to pressure and electric current verifies.
One as steam turbine for nuclear power station power measurement method of the present invention is improved, and described method also comprises:
Corresponding relation according to the pressure after verification and electric current demarcates steam turbine pressure transmitter.
In order to realize foregoing invention object, present invention also offers a kind of steam turbine for nuclear power station power measuring system, system comprises:
Processing module, for according to the initial relation curve between the steam turbine power obtained and chopped-off head admission pressure, calculates the corresponding relation of steam turbine power and pressure;
Demarcating module, for demarcating steam turbine pressure transmitter first according to described corresponding relation;
Measurement module, for measuring steam turbine high-pressure cylinder chopped-off head admission pressure according to described steam turbine pressure transmitter;
Determination module, for obtaining steam turbine power according to described chopped-off head admission pressure.
One as steam turbine for nuclear power station power measuring system of the present invention is improved, described processing module also for:
Steam turbine real power, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current is obtained by heat balance test.
One as steam turbine for nuclear power station power measuring system of the present invention is improved, described processing module also for:
Relation curve is upgraded according to described steam turbine real power, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current acquisition steam turbine power (0-120%FP) and the chopped-off head initial steam pressure of obtaining.
One as steam turbine for nuclear power station power measuring system of the present invention is improved, described processing module also for:
Obtain steam turbine real power according to described, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current obtain the corresponding relation of chopped-off head initial steam pressure and electric current.
One as steam turbine for nuclear power station power measuring system of the present invention is improved, described demarcating module also for:
Carry out second time according to the corresponding relation of described renewal relation curve or chopped-off head initial steam pressure and electric current to steam turbine pressure transmitter to demarcate.
In order to realize foregoing invention object, present invention also offers a kind of steam turbine for nuclear power station power measuring system, system comprises:
Steam turbine pressure transmitter, for MEASUREMENT OF STEAM turbine impulse type stage pressure;
Converter, for described steam turbine impulse type stage pressure being converted into steam turbine load according to transport function, described transport function is specially P
tU=A
0+ A
1(TP)+A
2(TP)
2, wherein P
tUfor steam turbine load, TP is steam turbine impulse type stage pressure, A
0,a
1,a
2for experience factor;
Measuring appliance, for obtaining steam turbine power according to described steam turbine load.
One as steam turbine for nuclear power station power measuring system of the present invention is improved, described steam turbine pressure transmitter also for:
Obtain the pressure signal of manometer, according to described pressure signal output current signal.
One as steam turbine for nuclear power station power measuring system of the present invention is improved, and described system also comprises:
Correction verification module, for according to described pressure signal and current signal, the corresponding relation to pressure and electric current verifies.
One as steam turbine for nuclear power station power measuring system of the present invention is improved, and described system also comprises:
Demarcating module, demarcates steam turbine pressure transmitter for the corresponding relation according to the pressure after verification and electric current.
Compared with prior art, steam turbine for nuclear power station power measurement method of the present invention and system have following Advantageous Effects: according to transport function P
tU=A
0+ A
1(TP)+A
2(TP)
2, described steam turbine impulse type stage pressure is converted into steam turbine load, then realizes the Measurement accuracy to steam turbine power according to steam turbine load.Owing to realizing verifying meter performance by transport function, effectively eliminate measurement data and the large problem of real data medial error.Meanwhile, implementation method is simple, obtains good technique effect.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, steam turbine for nuclear power station power measurement method of the present invention and system are described in detail, wherein:
Fig. 1 provides an example flow chart of steam turbine for nuclear power station power measurement method of the present invention.
Fig. 2 provides another example flow chart of steam turbine for nuclear power station power measurement method of the present invention.
Fig. 3 provides an example schematic of steam turbine for nuclear power station power measuring system of the present invention.
Fig. 4 provides another example schematic of steam turbine for nuclear power station power measuring system of the present invention.
Embodiment
In order to make goal of the invention of the present invention, technical scheme and Advantageous Effects thereof more clear, below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.It is emphasized that the embodiment described in this instructions is only used to explain the present invention, be not intended to limit use occasion of the present invention.
Incorporated by reference to providing a kind of steam turbine for nuclear power station power measurement method referring to Fig. 1, Fig. 1, it comprises:
Step 101, according to the initial relation curve between the steam turbine power obtained and chopped-off head admission pressure, calculates the corresponding relation of steam turbine power and pressure.
Step 103, demarcates steam turbine pressure transmitter first according to described corresponding relation.
Further, steam turbine real power, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current is obtained by heat balance test.
Further, relation curve is upgraded according to described steam turbine real power, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current acquisition steam turbine power (0-120%FP) and the chopped-off head initial steam pressure of obtaining.Carry out second time according to the corresponding relation of described renewal relation curve or chopped-off head initial steam pressure and electric current to steam turbine pressure transmitter to demarcate.
Step 105, measures steam turbine high-pressure cylinder chopped-off head admission pressure according to described steam turbine pressure transmitter.
Steam turbine high-pressure cylinder chopped-off head admission pressure is measured according to the steam turbine pressure transmitter demarcated.
Further, the steam turbine pressure transmitter demarcated according to second time measures steam turbine high-pressure cylinder chopped-off head admission pressure.
Step 107, obtains steam turbine power according to described chopped-off head admission pressure.
The embodiment of the present invention is due to the initial relation curve between the steam turbine power by obtaining and chopped-off head admission pressure, calculate the corresponding relation of steam turbine power and pressure, steam turbine pressure transmitter is demarcated again according to this corresponding relation, thus by demarcating the measurement of rear steam turbine pressure transmitter realization to steam turbine for nuclear power station power.Avoid because the excessive situation of the measured deviation that causes do not demarcated by the measuring equipments such as transmitter.Meanwhile, due to by demarcating the secondary of steam turbine pressure transmitter, achieving and steam turbine power is measured more accurately.
Incorporated by reference to providing a kind of steam turbine for nuclear power station power measurement method referring to Fig. 2, Fig. 2, it specifically comprises:
Step 201, steam turbine pressure transmitter MEASUREMENT OF STEAM turbine impulse type stage pressure.
Concrete, steam turbine pressure transmitter obtains the pressure signal of manometer, according to described pressure signal output current signal.
Further, according to described pressure signal and current signal, the corresponding relation to pressure and electric current verifies.Corresponding relation according to the pressure after verification and electric current demarcates steam turbine pressure transmitter.
Step 203, according to transport function, described steam turbine impulse type stage pressure is converted into steam turbine load, described transport function is specially P
tU=A
0+ A
1(TP)+A
2(TP)
2, wherein P
tUfor steam turbine load, TP is steam turbine impulse type stage pressure, A
0,a
1,a
2for experience factor;
Step 205, obtains steam turbine power according to described steam turbine load.
According to transport function P in the present embodiment
tU=A
0+ A
1(TP)+A
2(TP)
2, described steam turbine impulse type stage pressure is converted into steam turbine load, then realizes the Measurement accuracy to steam turbine power according to steam turbine load.Owing to realizing verifying meter performance by transport function, effectively eliminate measurement data and the large problem of real data medial error.Meanwhile, because the corresponding relation to pressure and electric current verifies according to pressure signal and current signal, and demarcate steam turbine pressure transmitter according to the corresponding relation of the pressure after verification and electric current.Realize the effective verification to measurement instrument, realize more accurate steam turbine power and measure.
Incorporated by reference to the schematic diagram of an embodiment providing a kind of steam turbine for nuclear power station power measuring system referring to Fig. 3, Fig. 3, this system comprises:
Processing module 301, for according to the initial relation curve between the steam turbine power obtained and chopped-off head admission pressure, calculates the corresponding relation of steam turbine power and pressure.
Further, processing module 301 also for obtaining steam turbine real power by heat balance test, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current.
Further, processing module 301 also upgrades relation curve for obtaining steam turbine real power, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current acquisition steam turbine power (0-120%FP) and chopped-off head initial steam pressure described in basis.
Optionally, processing module 301 is according to the described corresponding relation obtaining steam turbine real power, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current acquisition chopped-off head initial steam pressure and electric current.
Demarcating module 303, for demarcating steam turbine pressure transmitter first according to described corresponding relation.
Further, demarcating module 303 is also demarcated for carrying out second time according to the corresponding relation of described renewal relation curve or chopped-off head initial steam pressure and electric current to steam turbine pressure transmitter.
Measurement module 305, for measuring steam turbine high-pressure cylinder chopped-off head admission pressure according to described steam turbine pressure transmitter.
Determination module 307, for obtaining steam turbine power according to described chopped-off head admission pressure.
The embodiment of the present invention is due to the initial relation curve between the steam turbine power by obtaining and chopped-off head admission pressure, calculate the corresponding relation of steam turbine power and pressure, steam turbine pressure transmitter is demarcated again according to this corresponding relation, thus by demarcating the measurement of rear steam turbine pressure transmitter realization to steam turbine for nuclear power station power.Avoid because the excessive situation of the measured deviation that causes do not demarcated by the measuring equipments such as transmitter.Meanwhile, due to by demarcating the secondary of steam turbine pressure transmitter, achieving and steam turbine power is measured more accurately.
Incorporated by reference to the schematic diagram of an embodiment providing a kind of steam turbine for nuclear power station power measuring system referring to Fig. 4, Fig. 4.This system comprises:
Steam turbine pressure transmitter 401, for MEASUREMENT OF STEAM turbine impulse type stage pressure.
Optionally, steam turbine pressure transmitter 401 also for obtaining the pressure signal of manometer, according to described pressure signal output current signal.
Converter 403, for described steam turbine impulse type stage pressure being converted into steam turbine load according to transport function, described transport function is specially P
tU=A
0+ A
1(TP)+A
2(TP)
2, wherein P
tUfor steam turbine load, TP is steam turbine impulse type stage pressure, A
0,a
1,a
2for experience factor;
Measuring appliance 405, for obtaining steam turbine power according to described steam turbine load.
Optionally, this system can also comprise correction verification module, for according to described pressure signal and current signal, the corresponding relation to pressure and electric current verifies.
Further, this system can also comprise demarcating module, demarcates steam turbine pressure transmitter 401 for the corresponding relation according to the pressure after verification and electric current.
The implementation method of system and flow process see the embodiment of the method introduced in previous embodiment, can repeat no more herein.
Can find out in conjunction with above detailed description of the present invention, relative to prior art, the present invention at least has following Advantageous Effects: according to transport function P
tU=A
0+ A
1(TP)+A
2(TP)
2, described steam turbine impulse type stage pressure is converted into steam turbine load, then realizes the Measurement accuracy to steam turbine power according to steam turbine load.Owing to realizing verifying meter performance by transport function, effectively eliminate measurement data and the large problem of real data medial error.In addition, due to the initial relation curve between the steam turbine power by obtaining and chopped-off head admission pressure, calculate the corresponding relation of steam turbine power and pressure, steam turbine pressure transmitter is demarcated again according to this corresponding relation, thus by demarcating the measurement of rear steam turbine pressure transmitter realization to steam turbine for nuclear power station power.Avoid because the excessive situation of the measured deviation that causes do not demarcated by the measuring equipments such as transmitter.Meanwhile, due to by demarcating the secondary of steam turbine pressure transmitter, achieving and steam turbine power is measured more accurately.Implementation method is simple, obtains good technique effect.
According to above-mentioned principle, the present invention can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (18)
1. a steam turbine for nuclear power station power measurement method, is characterized in that, described method comprises:
According to the initial relation curve between the steam turbine power obtained and chopped-off head admission pressure, calculate the corresponding relation of steam turbine power and pressure;
Steam turbine pressure transmitter is demarcated first according to described corresponding relation;
Steam turbine high-pressure cylinder chopped-off head admission pressure is measured according to described steam turbine pressure transmitter;
Steam turbine power is obtained according to described chopped-off head admission pressure.
2. method according to claim 1, is characterized in that, described method also comprises:
Steam turbine real power, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current is obtained by heat balance test.
3. method according to claim 2, is characterized in that, described method also comprises:
Obtain steam turbine real power according to described, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current obtain steam turbine power (0-120%FP) and chopped-off head initial steam pressure upgrades relation curve.
4. method according to claim 2, is characterized in that, described method also comprises:
According to the described corresponding relation obtaining steam turbine real power, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current acquisition chopped-off head initial steam pressure and electric current.
5. the method according to claim 3 or 4, is characterized in that, described method also comprises:
Carry out second time according to the corresponding relation of described renewal relation curve or chopped-off head initial steam pressure and electric current to steam turbine pressure transmitter to demarcate.
6. a steam turbine for nuclear power station power measurement method, is characterized in that, described method comprises:
Steam turbine pressure transmitter MEASUREMENT OF STEAM turbine impulse type stage pressure;
According to transport function, described steam turbine impulse type stage pressure is converted into steam turbine load, described transport function is specially P
tU=A
0+ A
1(TP)+A
2(TP)
2, wherein P
tUfor steam turbine load, TP is steam turbine impulse type stage pressure, A
0, A
1, A
2for experience factor;
Steam turbine power is obtained according to described steam turbine load.
7. method according to claim 6, is characterized in that, described steam turbine pressure transmitter MEASUREMENT OF STEAM turbine impulse type stage pressure comprises:
Steam turbine pressure transmitter obtains the pressure signal of manometer, according to described pressure signal output current signal.
8. method according to claim 7, is characterized in that, described method also comprises:
According to described pressure signal and current signal, the corresponding relation to pressure and electric current verifies.
9. method according to claim 8, is characterized in that, described method also comprises:
Corresponding relation according to the pressure after verification and electric current demarcates steam turbine pressure transmitter.
10. a steam turbine for nuclear power station power measuring system, is characterized in that, described system comprises:
Processing module, for according to the initial relation curve between the steam turbine power obtained and chopped-off head admission pressure, calculates the corresponding relation of steam turbine power and pressure;
Demarcating module, for demarcating steam turbine pressure transmitter first according to described corresponding relation;
Measurement module, for measuring steam turbine high-pressure cylinder chopped-off head admission pressure according to described steam turbine pressure transmitter;
Determination module, for obtaining steam turbine power according to described chopped-off head admission pressure.
11. systems according to claim 10, is characterized in that, described processing module also for:
Steam turbine real power is obtained, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current by heat balance test.
12. systems according to claim 11, is characterized in that, described processing module also for:
Obtain steam turbine real power according to described, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current obtain steam turbine power (0-120%FP) and chopped-off head initial steam pressure upgrades relation curve.
13. systems according to claim 11, is characterized in that, described processing module also for:
Obtain steam turbine real power according to described, true chopped-off head admission pressure, described steam turbine pressure transmitter output power and electric current obtain the corresponding relation of chopped-off head initial steam pressure and electric current.
14. systems according to claim 12 or 13, is characterized in that, described demarcating module also for:
Carry out second time according to the corresponding relation of described renewal relation curve or chopped-off head initial steam pressure and electric current to steam turbine pressure transmitter to demarcate.
15. 1 kinds of steam turbine for nuclear power station power measuring systems, is characterized in that, described system comprises:
Steam turbine pressure transmitter, for MEASUREMENT OF STEAM turbine impulse type stage pressure;
Converter, for described steam turbine impulse type stage pressure being converted into steam turbine load according to transport function, described transport function is specially P
tU=A
0+ A
1(TP)+A
2(TP)
2, wherein P
tUfor steam turbine load, TP is steam turbine impulse type stage pressure, A
0, A
1, A
2for experience factor;
Measuring appliance, for obtaining steam turbine power according to described steam turbine load.
16. systems according to claim 15, is characterized in that, described steam turbine pressure transmitter also for:
Obtain the pressure signal of manometer, according to described pressure signal output current signal.
17. systems according to claim 16, is characterized in that, described system also comprises
Correction verification module, for according to described pressure signal and current signal, the corresponding relation to pressure and electric current verifies.
18. systems according to claim 17, is characterized in that, described system also comprises:
Demarcating module, demarcates steam turbine pressure transmitter for the corresponding relation according to the pressure after verification and electric current.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039466A (en) * | 1988-07-11 | 1990-02-07 | 西屋电气公司 | Force down the modulating valve characteristic curve to improve the method for turbine efficiency |
| JPH0343605A (en) * | 1989-07-11 | 1991-02-25 | Toshiba Corp | Turbine controlling device |
| CN101794634A (en) * | 2010-01-21 | 2010-08-04 | 上海电力学院 | Digital computing method for pressure set value of deaerator of pressurized water reactor nuclear power station |
| CN102629110A (en) * | 2012-04-12 | 2012-08-08 | 余大利 | Pressurized water reactor hardware-in-the-loop simulation system based on physical model |
| CN102654064A (en) * | 2012-05-15 | 2012-09-05 | 西安陕鼓动力股份有限公司 | Steam-switching control method of double-steam-admission condensing turbine |
| CN103590861A (en) * | 2012-08-15 | 2014-02-19 | 广东核电合营有限公司 | High-pressure cylinder of steam turbine for nuclear power station and design method thereof |
| CN103811090A (en) * | 2012-11-14 | 2014-05-21 | 中国广东核电集团有限公司 | Pressurized water reactor nuclear power station steam generator water level control method and system |
| CN103808433A (en) * | 2012-11-14 | 2014-05-21 | 中国广东核电集团有限公司 | Nuclear power station thermal power measurement drift monitoring method |
| CN104048842A (en) * | 2014-05-29 | 2014-09-17 | 华中科技大学 | On-line monitoring method for heat rate of steam turbine on basis of soft measurement technology |
-
2014
- 2014-12-02 CN CN201410719943.XA patent/CN104464860A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039466A (en) * | 1988-07-11 | 1990-02-07 | 西屋电气公司 | Force down the modulating valve characteristic curve to improve the method for turbine efficiency |
| JPH0343605A (en) * | 1989-07-11 | 1991-02-25 | Toshiba Corp | Turbine controlling device |
| CN101794634A (en) * | 2010-01-21 | 2010-08-04 | 上海电力学院 | Digital computing method for pressure set value of deaerator of pressurized water reactor nuclear power station |
| CN102629110A (en) * | 2012-04-12 | 2012-08-08 | 余大利 | Pressurized water reactor hardware-in-the-loop simulation system based on physical model |
| CN102654064A (en) * | 2012-05-15 | 2012-09-05 | 西安陕鼓动力股份有限公司 | Steam-switching control method of double-steam-admission condensing turbine |
| CN103590861A (en) * | 2012-08-15 | 2014-02-19 | 广东核电合营有限公司 | High-pressure cylinder of steam turbine for nuclear power station and design method thereof |
| CN103811090A (en) * | 2012-11-14 | 2014-05-21 | 中国广东核电集团有限公司 | Pressurized water reactor nuclear power station steam generator water level control method and system |
| CN103808433A (en) * | 2012-11-14 | 2014-05-21 | 中国广东核电集团有限公司 | Nuclear power station thermal power measurement drift monitoring method |
| CN104048842A (en) * | 2014-05-29 | 2014-09-17 | 华中科技大学 | On-line monitoring method for heat rate of steam turbine on basis of soft measurement technology |
Non-Patent Citations (2)
| Title |
|---|
| 中国电机工程学会: "《2014年中国电机工程学会年会详细会议议程》", 《2014年中国电机工程学会年会》 * |
| 董威 董孝胜: "《核电站汽轮机功率测量及运用的技术研究》", 《2014年中国电机工程学会年会论文集》 * |
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