CN101105520B - Generating set primary frequency regulation test method and emulating instrument for test - Google Patents
Generating set primary frequency regulation test method and emulating instrument for test Download PDFInfo
- Publication number
- CN101105520B CN101105520B CN200710018434A CN200710018434A CN101105520B CN 101105520 B CN101105520 B CN 101105520B CN 200710018434 A CN200710018434 A CN 200710018434A CN 200710018434 A CN200710018434 A CN 200710018434A CN 101105520 B CN101105520 B CN 101105520B
- Authority
- CN
- China
- Prior art keywords
- test
- signal
- unit
- primary frequency
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 160
- 238000010998 test method Methods 0.000 title claims abstract description 27
- 230000033228 biological regulation Effects 0.000 title claims description 34
- 238000000034 method Methods 0.000 claims abstract description 98
- 230000008569 process Effects 0.000 claims abstract description 83
- 238000004088 simulation Methods 0.000 claims abstract description 15
- 238000005457 optimization Methods 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000011002 quantification Methods 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 26
- 230000010354 integration Effects 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 15
- 230000003068 static effect Effects 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 5
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000007405 data analysis Methods 0.000 abstract description 3
- 238000013480 data collection Methods 0.000 abstract 1
- 230000001131 transforming effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention relates to an electric generating set single frequency modulation test method and a test simulation instrument used in the test; the method comprises the steps that a data file is selected; the data file is processed; a single frequency modulation test of the electric generating set is implemented; the whole modulation process is recorded. The test simulation instrument comprises a collection circuit, a pretreatment and A/D transforming circuit, a frequency test speed test unit, a central processing unit and a disturbing signal generating unit. The invention overcomes the shortcomings of big test difficulty, big risk of stability and wide influence surface of electricity grid, bed repeatability of the test, difficult optimization of parameters, big difference between the single frequency modulation process tested in step disturbance test and the actual single frequency modulation process and high workload of data analysis in the prior test method; the invention has the advantages of accurate simulation of electricity grid frequency disturbance process, realization of the test of the single modulation process of the electric generating set, simple test process, high repeatability, big safety, accurate quantification and comparison of the single frequency modulation capability of the electric generating set under different modulation parameters, numerous simulation quantity data collection channels of the test simulation instrument and big accuracy of frequency test and frequency emission.
Description
Technical field
The present invention relates to a kind of generating set primary frequency regulation test method and emulating instrument for test use in test, be mainly used in test, generating set primary frequency regulation operational mode and the adjusting Parameter Optimization of the primary frequency modulation performance of genset.
Background technology
One of main task of Operation of Electric Systems monitors frequency exactly and controls, and the primary frequency modulation function of genset is most important to keeping stablizing of mains frequency, and is particularly particularly crucial for the few electrical network of those quick adjustment unit proportions.Primary frequency modulation is most important to the quality that improves the total system frequency, can improve system's anti-jamming capacity significantly.To chugging relatively large in the system, because the quick response of primary frequency modulation can provide favourable buffer action for the frequency modulation frequency modulation of system.
Frequency character of load by the genset governing system is called the unit primary frequency modulation to the control of the power-frequency of electrical network, and it is mainly realized by the static characteristics of genset governing system and PID dynamic adjustments characteristic thereof.When system frequency deviation surpassed certain limit, governing system was regulated according to frequency set-point and its deviation relatively.Wherein, primary frequency modulation is meant that unit is under the state that is incorporated into the power networks, when mains frequency is crossed a certain setting (50 ± EHz, E is the dead band) time, the unit regulating system is adjusted load according to frequency one load curve automatically automatically under the situation of not receiving higher level's traffic order, in mains frequency is got back to normal range.
After State Grid's system reform, stable for guaranteeing power grid security and power supply, set up the electricity market of standard, State Electricity Regulatory Commission issued " about the be incorporated into the power networks suggestion of management of generating plant " [2006] No. 42 and No. [2006] 43, " the factory's assistant service management tentative method of generating electricity by way of merging two or more grid systems " in regulation: the frequency departure dead band of unit regulating system, speed governor droop and primary frequency modulation drop into the regulation requirement that corresponding speed etc. should satisfy the place electrical network.
For further improving the operation stability of electrical network, improve power supply quality, the generation of reply burst accident, strengthen the controlling level of mains frequency, improve the electrical network dynamic quality, strengthen the anti-accident ability of electrical network, the unit that generally requires the net straightening to transfer all should possess the primary frequency modulation of input function, when mains frequency fluctuateed, unit all should participate in primary frequency modulation automatically under all methods of operation, and to the proposition of the unit that is incorporated into the power networks concrete primary frequency modulation technical requirement and corresponding way of rewards and punishments.
Because the generating set primary frequency regulation test does not have ready-made testing regulations and test guide rule, so, mainly contain following several test method to also being in several different methods on the primary frequency modulation test method and depositing:
One, actual electric network frequency disturbance: cooperate by dispatching of power netwoks department,, form certain mains frequency perturbation process by unit output or the line load disturbance of generating electricity by way of merging two or more grid systems.The actual primary frequency modulation adjustment process of test record unit in this process.As " Northwest Grid primary frequency modulation united test " project, 15 of the unit water power of participation primary frequency modulation test, 7 of thermoelectricitys.With a unit removal of load of exerting oneself and generating electricity by way of merging two or more grid systems for 200MW, mains frequency is reduced to 49.89Hz by 50.0Hz, returns to more than the 49.95Hz gradually then in the test.By test analysis, survey the primary frequency modulation performance of unit and primary frequency modulation inhibiting effect to grid disturbance to the actual primary frequency modulation adjustment process of the unit that generates electricity by way of merging two or more grid systems that participates in test.But the cost of test is bigger, has certain risk, because need carry out united and coordinating to a plurality of power plant, needs the cooperation of a plurality of units, has strengthened the enforcement difficulty.And test is repeatable poor, can't carry out the primary frequency modulation performance contrast test under the same unit different adjustment parameter.Generally should not adopt this method.
Two, static primary frequency modulation open loop step test: in static primary frequency modulation open loop test, be that unit remains static, machine class frequency or grid frequency measurement end in the excision governing system, the frequency signal of high-precision frequency generator is inserted governing system frequency measurement end, form open-loop control system, as shown in Figure 1.The frequency step signal is sent out in the frequency variation signal source in the test, the given rated frequency that is set at of frequency, and the static primary frequency modulation adjusted open loop of record governing system process can be to primary frequency modulation parameter initial optimization and selection.
Three, dynamically primary frequency modulation open loop step test: in dynamically the primary frequency modulation open loop is tested, the set grid-connection load carrying is in big electrical network, the frequency signal of high-precision frequency generator is inserted governing system frequency measurement end, form open-loop control system, as shown in Figure 2.The frequency step signal is sent out in the frequency variation signal source in the test, the adjustment process of the governing system and the power of the assembling unit in the investigation test.
Under above-mentioned two kinds of methods, the primary frequency modulation process in the unit primary frequency modulation process of surveying and the unit actual motion differ bigger.And, during test the choosing of frequency step amount, primary frequency modulation step response process evaluation index determine also very immaturely, cause when the unit primary frequency modulation performance optimized data analysis complexity and loaded down with trivial details.
Generating set primary frequency regulation test and performance test are scarcely out of swaddling-clothes, and be still not deep enough, lacks the primary frequency modulation testing equipment of corresponding specialty, maturation.Conventional but all exist pilot project less, measuring accuracy is not enough, and the precision of particularly frequency measurement module is not enough, can not satisfy the needs of primary frequency modulation test dynamic test far away.The product of single-frequency measurement at present is a lot, the precision that has is also higher, but do not have to measure the function of recording ripple with data in real time, the genset integrated test system that has can be recorded ripple in real time, but generally be the simulation frequency measurement, measuring accuracy is lower, does not also satisfy the requirement of primary frequency modulation Real-time and Dynamic process.
Summary of the invention
The present invention proposes a kind of generating set primary frequency regulation test method and test emulating instrument for test, it solves existing actual electric network frequency disturbance primary frequency modulation measurement of test method difficulty and the stabilization of power grids has a big risk, influence wide, unit of fit is many, test is repeatable poor, being difficult to carry out speed regulator with the method regulates the primary frequency modulation process that Parameter Optimization and step disturbance test method survey in unit primary frequency modulation process and the unit actual motion and differs bigger, the technical matters that the data analysis workload is big.
Technical solution of the present invention is:
A kind of generating set primary frequency regulation test method may further comprise the steps:
1] chooses a mains frequency perturbation process recorder data file;
2] above-mentioned data file is handled, make it satisfy the requirement of emulating instrument for test to signal reconstruction, and the data file after will handling preserves or sends into the emulating instrument for test appointed positions, so that emulating instrument for test meets the disturbing signal of corresponding governing system frequency or tach signal test request by signal reconstruction output;
3] behind the genset static state or the on-load that is incorporated into the power networks, the actual set frequency or the tach signal of input governing system are disconnected, the disturbing signal of emulating instrument for test output is inserted, emulating instrument for test is by the test disturbing signal of signal reconstruction output reflection mains frequency perturbation process, carry out the primary frequency modulation test of genset, write down whole adjustment process.
Above-mentioned adjustment process of carrying out primary frequency modulation test and record generating set primary frequency regulation also comprises: adjust governing system according to test findings and regulate parameter, repeat the frequency modulation test at least once.
Above-mentioned test method also comprises optimizes the step that unit is regulated parameter:
According to the integration electric weight computing method of generating set primary frequency regulation, calculate the primary frequency modulation integration electric weight of simulation electrical network frequency disturbance process unit, carry out the quantification and the unit of primary frequency modulation adjusting function according to result of calculation and regulate Parameter Optimization.
Above-mentioned perturbation process recorder data file is the mains frequency perturbation process data file of a typical mains frequency actual disturbance recorder data file or artificial simulation; The processing of described data file comprises one or more of transfer process, data interpolating process of arrangement process to the data file, data layout.
The whole adjustment process of above-mentioned record comprises gathers displacement signal, power of the assembling unit signal, machine class frequency or tach signal and net frequency signal; Described displacement signal comprises wheel blade corner and the main servomotor displacement of main servomotor displacement or other Hydropower Unit or the pitch displacement of fired power generating unit of kaplan type turbine.
The whole adjustment process of above-mentioned record comprises gathers governing system control output signal, pressure signal or generator outlet isolating switch auxiliary node signal; Described pressure signal comprises the volute pressure of Hydropower Unit and the vapour pressure signal of tail water pressure signal or fired power generating unit.
Emulating instrument for test is used in a kind of generating set primary frequency regulation test, and its special character is: described emulating instrument for test comprises the analog data Acquisition Circuit 1 that can gather at least 4 analog signalses simultaneously, can carry out the pre-service and the A/D change-over circuit 2 of filtering and analog-to-digital conversion process to the analog data of gathering, the frequency measurement that can measure the frequency of electrical network or unit or the rotating speed unit 3 that tests the speed, can read perturbation process recorder data file and send the CPU (central processing unit) 4 of disturbing signal needed number amount simultaneously, the digital quantity disturbing signal can be converted to the disturbing signal generation unit 5 of the disturbing signal that meets corresponding governing system frequency or tach signal test request.
Above-mentioned emulating instrument for test also comprises the database 6 that can preserve various recorder data file.
The analog signals that above-mentioned analog data Acquisition Circuit 1 is gathered comprises displacement signal, power of the assembling unit signal; The displacement signal of described genset comprises wheel blade corner and the main servomotor displacement of main servomotor displacement or other Hydropower Unit or the high-pressure governing valve displacement of fired power generating unit of kaplan type turbine.
The analog signals that above-mentioned analog data Acquisition Circuit 1 is gathered comprises governing system control output signal, pressure signal or generator outlet isolating switch node signal; Described pressure signal comprises the volute pressure of Hydropower Unit and the vapour pressure signal of tail water pressure signal or fired power generating unit.
The advantage of the inventive method is:
1, can accurately simulate electrical network frequency disturbance process, realize test the actual primary frequency modulation process of unit.In actual motion, because unit generally all is to incorporate big operation of power networks into, mains frequency can not be the step disturbance of standard, but a dynamic process that gradually changes.Conventional method adopts frequency step disturbance test unit primary frequency modulation dynamic process, is difficult to the actual primary frequency modulation performance of true reflection unit.Adopt of the frequency signal reproduction of signal reconstruction technology, be used for the primary frequency modulation test and the performance test of unit, can test unit truer by research technique, all sidedly and get primary frequency modulation performance actual electric network perturbation process section.Because resulting unit primary frequency modulation adjustment process is tested in the improvement of test method, also can be used for identification and verification to set speed adjustment system mathematic model and model parameter.Test principle synoptic diagram of the present invention as shown in Figure 4.
2, test process is simple, convenient, and is repeatable strong.Utilize test method of the present invention, can not carry out under the situation of mains frequency disturbance, realization has been simplified process of the test to the test of the actual primary frequency modulation process of unit, and can the actual primary frequency modulation process of the unit of repeated test unit under different operating modes, different adjustment parameter.
3, safe.Under test method of the present invention, on the one hand owing to do not need the actual electric network frequency disturbance, the risk that whole power grid operation is brought of having avoided that grid disturbance produces, safe; On the other hand for genset, the adjustment process of unit is a unexpected disturbance under the step disturbance signal of routine, operation stability to genset is disadvantageous, and the disturbing signal of test usefulness is a typical or artificial mains frequency disturbing signal of simulating, it is the process of a gradual change, when having avoided utilizing step disturbance to carry out the primary frequency modulation test, unit may produce toning or the possibility of rapid load disturbance occur, guarantees the safety of unit adjustment process.
4, can quantize the unit primary frequency modulation ability under the contrast different adjustment parameter accurately by the calculating of the actual primary frequency modulation process of unit integration electric weight.The primary frequency modulation integration electric weight module of utilizing the simulation calculation instrument to set up, integration electric weight to unit primary frequency modulation process calculates rapidly, statistics primary frequency modulation process integration electric weight, quantize unit primary frequency modulation ability accurately rapidly,, regulate parameter so that optimize primary frequency modulation, test has higher Practical significance to primary frequency modulation.
5, emulating instrument for test analog data acquisition channel is many.Emulating instrument for test has 16 analog data acquisition channels, and the measuring accuracy height can satisfy the requirement of primary frequency modulation test fully.
6, the frequency measurement of emulating instrument for test, a frequency precision height.The frequency measurement of emulating instrument for test, a frequency precision all reach 0.001Hz.It is versatile and flexible to send out the frequency signal, can satisfy the different requirements of different governing systems to frequency measurement, tachometer signal, also can conveniently realize the test signal output of various change procedures such as frequency step, slope and data file customization.
Description of drawings
Fig. 1 is existing static primary frequency modulation open loop step test synoptic diagram;
Fig. 2 is existing dynamic primary frequency modulation open loop step test synoptic diagram;
Fig. 3 is a static primary frequency modulation test principle synoptic diagram of the present invention;
Fig. 4 is a dynamic primary frequency modulation test principle synoptic diagram of the present invention;
Fig. 5 is an emulating instrument for test schematic diagram of the present invention, 1-analog data Acquisition Circuit, 2-pre-service and A/D change-over circuit, the frequency measurement of 3-frequency or the rotating speed unit that tests the speed, 4-CPU (central processing unit), 5-disturbing signal generation unit, 6-database;
Fig. 6 is certain typical electrical network frequency disturbance process;
Fig. 7 is a unit primary frequency modulation integration electric weight contrast synoptic diagram under the different adjustment parameter, wherein: PID3-power plant actual operation parameters, PID2-parameters optimization, PID1-recommended formula calculating parameter.
Embodiment
A kind of generating set primary frequency regulation test method of the present invention specifically may further comprise the steps:
1] chooses a mains frequency perturbation process recorder data file; Perturbation process recorder data file can be the mains frequency perturbation process data file of a typical mains frequency actual disturbance recorder data file or artificial simulation;
2] above-mentioned data file is handled, make it satisfy the requirement of emulating instrument for test to signal reconstruction, and the data file after will handling preserves or sends into the emulating instrument for test appointed positions, so that emulating instrument for test generates the disturbing signal that meets corresponding governing system frequency or tach signal test request; The processing of data file can be the arrangement process to the data file, also can be the transfer process to the data form, can also be to the arrangement of data file with to the transfer process of data form, can also carry out the process of interpolation in case of necessity to data.
3] behind the genset static state or (dynamically) on-load that is incorporated into the power networks, actual set frequency or the tach signal that will import governing system disconnect, with the disturbing signal access of emulating instrument for test output.Caution signal disconnects or when inserting, and speed regulator is switched to manual operation or carries out active and standbyly switching with two-shipper, guarantees that signal disconnects or during test connection, governing system is regulated no disturbance, the zero load disturbance of unit.Emulating instrument for test with the Installation and Debugging of correlation test signal, be connected finish after, speed regulator switches to automatic operation or carries out once more active and standbyly switching with two-shipper, emulating instrument for test is by the test signal of signal reconstruction output reflection mains frequency perturbation process, carry out the primary frequency modulation test of genset, write down whole adjustment process; This recording process will be gathered displacement signal, power of the assembling unit signal, unit frequency signal and net signal frequently at least; This displacement signal can be wheel blade corner and the main servomotor displacement of main servomotor displacement or other Hydropower Unit or the pitch displacement of fired power generating unit of kaplan type turbine; In order to make test and analysis more comprehensive, also can gather governing system control output signal, pressure signal or generator outlet isolating switch node signal; This pressure signal can comprise the volute pressure of Hydropower Unit and the vapour pressure signal of tail water pressure signal or fired power generating unit.
4] adjust governing system according to test findings and regulate parameter, repeat step 3] at least once.
5] according to the integration electric weight computing method of generating set primary frequency regulation, calculate the primary frequency modulation integration electric weight of simulation electrical network frequency disturbance process unit, carry out the quantification and the unit of primary frequency modulation adjusting function according to result of calculation and regulate Parameter Optimization.
The required test apparatus of generating set primary frequency regulation test method of the present invention is as follows:
1] test emulating instrument for test, referring to Fig. 5, comprise the analog data Acquisition Circuit that to gather at least 4 analog signalses simultaneously, can carry out the pre-service and the A/D change-over circuit of filtering and analog-to-digital conversion process to the analog data of gathering, the frequency measurement that can measure the frequency of electrical network or unit or the rotating speed unit that tests the speed, can read perturbation process recorder data file and send the CPU (central processing unit) of disturbing signal needed number amount simultaneously, the digital quantity disturbing signal can be converted to the disturbing signal generation unit of the disturbing signal that meets corresponding governing system frequency or tach signal test request, can preserve the database of various recorder data file; The frequency measurement of emulating instrument for test, a frequency precision are 0.001Hz; The process of emulating instrument for test generation disturbing signal changes into corresponding data file the process of physical signalling (time dependent frequency or tach signal) exactly.
2] displacement transducer, precision 0.15%;
3] power transducer, precision are 0.2%;
4] pressure transducer, precision are 0.2%.
For preliminary examination unit primary frequency modulation performance and parameters optimization, generating set primary frequency regulation test method of the present invention can be carried out envelope test, during at first static, governing system operate as normal at unit, each measuring point transmitter Installation and Debugging is finished, the measuring point signal is introduced emulating instrument for test, the debugging emulating instrument for test guarantees that test value is correct, sends out signal stabilization, accurate frequently.The actual set frequency or the tach signal of input governing system are disconnected, with the disturbing signal access (step 1) of emulating instrument for test output; The record ripple file of inciting somebody to action certain typical actual electric network frequency disturbance is as shown in Figure 6 handled again, make it satisfy the requirement of emulating instrument for test to signal reconstruction, and the data file after will handling preserves or sends into the emulating instrument for test appointed positions, so that emulating instrument for test generates the disturbing signal (step 2) that meets corresponding governing system frequency or tach signal test request; Emulating instrument for test just can be by the data output disturbance signal in the perturbation process recorder data file behind the working procedure, simulation actual electric network frequency disturbance test (step 3); Adjust governing system according to test findings and regulate parameter, repeat step 3 at least once, for example regulate stabilization time and meet the requirements (step 4) until unit primary frequency modulation technical indicator.
Generating set primary frequency regulation test method of the present invention also can be carried out dynamic test, require unit to possess the varying load condition, the band certain load is incorporated into the power networks, speed regulator switches to manually, the actual set frequency or the tach signal of input governing system are disconnected, with the disturbing signal access (step 5) of emulating instrument for test output; The record ripple file of inciting somebody to action certain typical actual electric network frequency disturbance is as shown in Figure 6 handled again, make it satisfy the requirement of emulating instrument for test to signal reconstruction, and the data file after will handling preserves or sends into the emulating instrument for test appointed positions, so that emulating instrument for test generates the disturbing signal (step 6) that meets corresponding governing system frequency or tach signal test request; Emulating instrument for test just can be by the data output disturbance signal in the perturbation process recorder data file behind the working procedure, simulation actual electric network frequency disturbance test (step 7); Adjust governing system according to test findings and regulate parameter, repeat step 7 at least once, meet the requirements until unit primary frequency modulation technical indicator, or pass through under the different adjustment parameter, the contrast of unit primary frequency modulation integration electric weight, optimize and regulate parameter, obtain better primary frequency modulation regulation efficiency (step 8).
Generating set primary frequency regulation test method of the present invention also can be carried out envelope test and dynamic test successively, only needs to get final product according to step 1 to the step 8 of above-mentioned envelope test and dynamic test.
In test by the variation of unit output in the actual electric network frequency disturbance process being investigated the primary frequency modulation performance of unit.Run under a certain load condition in unit autostable, several groups of different PID regulate under the parameters machine frequently measuring junction import shown in the identical disturbing signal the frequency disturbance signal, calculate after frequency disturbance begins unit output with respect to the changing value of steady working condition, and the changing value of exerting oneself carried out integration, obtain the variation of unit output electric weight in the whole perturbation process, and then analyze the primary frequency modulation ability of unit under the different adjustment parameter.
Fig. 7 is the integration electric quantity change curve of unit under the different adjustment parameter under certain actual electric network frequency disturbance, clearly regulates exerting oneself of unit under the parameter and changes maximumly for second group, and generated energy changes at most.And the parameter of power plant's actual motion is the 3rd a group of adjusting parameter, and in 160 seconds of mains frequency disturbance, the integration electric weight during second group of adjusting parameter is the 3rd group 4.5 times, is 2.3 times of first group of parameter, and is with the obvious advantage.Therefore, illustrate that it is very effective that the method is regulated parameter to examination generating set primary frequency regulation performance, optimization unit primary frequency modulation.
The principle of the invention: the inventive method mainly is the improvement to the primary frequency modulation testing experiment method of unit, by adopting signal reconstruction technology commonly used frequency signal reproduction with actual electric network perturbation process section, is used for the primary frequency modulation test and the performance test of unit.The present invention can test the primary frequency modulation performance of unit truer, all sidedly.Core of the present invention is to have adopted the disturbing signal of reproducing to test the unit primary frequency modulation performance, is not emphasis of the present invention as for source or the disposal route of signal, as long as this signal can be simulated the perturbation process of electrical network.
Claims (10)
1. generating set primary frequency regulation test method may further comprise the steps:
1] chooses a mains frequency perturbation process recorder data file;
2] above-mentioned data file is handled, make it satisfy the requirement of emulating instrument for test to signal reconstruction, and the data file after will handling preserves or sends into the emulating instrument for test appointed positions, so that emulating instrument for test meets the disturbing signal of corresponding governing system frequency or tach signal test request by signal reconstruction output;
3] behind the genset static state or the on-load that is incorporated into the power networks, the actual set frequency or the tach signal of input governing system are disconnected, the disturbing signal of emulating instrument for test output is inserted, emulating instrument for test is by the test disturbing signal of signal reconstruction output reflection mains frequency perturbation process, carry out the primary frequency modulation test of genset, write down whole adjustment process.
2. generating set primary frequency regulation test method according to claim 1, it is characterized in that: described adjustment process of carrying out primary frequency modulation test and record generating set primary frequency regulation also comprises: adjust governing system according to test findings and regulate parameter, repeat the frequency modulation test at least once.
3. generating set primary frequency regulation test method according to claim 1 and 2 is characterized in that: described test method also comprises optimizes the step that unit is regulated parameter:
According to the integration electric weight computing method of generating set primary frequency regulation, calculate the primary frequency modulation integration electric weight of simulation electrical network frequency disturbance process unit, carry out the quantification and the unit of primary frequency modulation adjusting function according to result of calculation and regulate Parameter Optimization.
4. generating set primary frequency regulation test method according to claim 1 is characterized in that: described perturbation process recorder data file is the mains frequency perturbation process data file of a typical mains frequency actual disturbance recorder data file or artificial simulation; The processing of described data file comprises one or more of transfer process, data interpolating process of arrangement process to the data file, data layout.
5. generating set primary frequency regulation test method according to claim 4 is characterized in that: the whole adjustment process of described record comprises gathers displacement signal, power of the assembling unit signal, machine class frequency or tach signal and net frequency signal; Described displacement signal comprises wheel blade corner and the main servomotor displacement of main servomotor displacement or other Hydropower Unit or the pitch displacement of fired power generating unit of kaplan type turbine.
6. generating set primary frequency regulation test method according to claim 5 is characterized in that: the whole adjustment process of described record comprises gathers governing system control output signal, pressure signal or generator outlet isolating switch auxiliary node signal; Described pressure signal comprises the volute pressure of Hydropower Unit and the vapour pressure signal of tail water pressure signal or fired power generating unit.
7. emulating instrument for test is used in a generating set primary frequency regulation test, and it is characterized in that: described emulating instrument for test comprises the analog data Acquisition Circuit (1) that can gather at least 4 analog signalses simultaneously, can carry out the pre-service and the A/D change-over circuit (2) of filtering and analog-to-digital conversion process to the analog data of gathering, the frequency measurement that can measure the frequency of electrical network or unit or the rotating speed unit (3) that tests the speed, can read perturbation process recorder data file and send the CPU (central processing unit) (4) of disturbing signal needed number amount simultaneously, the digital quantity disturbing signal can be converted to the disturbing signal generation unit (5) of the disturbing signal that meets corresponding governing system frequency or tach signal test request.
8. emulating instrument for test is used in generating set primary frequency regulation test according to claim 7, and it is characterized in that: described emulating instrument for test also comprises the database (6) that can preserve various recorder data file.
9. use emulating instrument for test according to claim 7 or 8 described generating set primary frequency regulation tests, it is characterized in that: the analog signals that described analog data Acquisition Circuit (1) is gathered comprises displacement signal, power of the assembling unit signal; The displacement signal of described genset comprises wheel blade corner and the main servomotor displacement of main servomotor displacement or other Hydropower Unit or the high-pressure governing valve displacement of fired power generating unit of kaplan type turbine.
10. emulating instrument for test is used in generating set primary frequency regulation test according to claim 9, it is characterized in that: the analog signals that described analog data Acquisition Circuit (1) is gathered comprises governing system control output signal, pressure signal or generator outlet isolating switch node signal; Described pressure signal comprises the volute pressure of Hydropower Unit and the vapour pressure signal of tail water pressure signal or fired power generating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710018434A CN101105520B (en) | 2007-08-08 | 2007-08-08 | Generating set primary frequency regulation test method and emulating instrument for test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710018434A CN101105520B (en) | 2007-08-08 | 2007-08-08 | Generating set primary frequency regulation test method and emulating instrument for test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101105520A CN101105520A (en) | 2008-01-16 |
| CN101105520B true CN101105520B (en) | 2010-05-19 |
Family
ID=38999505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710018434A Active CN101105520B (en) | 2007-08-08 | 2007-08-08 | Generating set primary frequency regulation test method and emulating instrument for test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101105520B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095582A (en) * | 2010-12-01 | 2011-06-15 | 山东电力研究院 | Method for measuring and acquiring accumulative work time with dynamometry load rejection test for steam turbo generator unit |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101290341B (en) * | 2008-06-17 | 2010-06-09 | 四川中鼎科技有限公司 | Hydroelectric units primary frequency modulation performance test method |
| CN101892873B (en) * | 2010-07-09 | 2013-03-06 | 山东中实易通集团有限公司 | Primary frequency modulation method based on machine inlet pressure compensation |
| CN102661177B (en) * | 2010-10-15 | 2014-09-17 | 华东电力试验研究院有限公司 | Method for realizing primary frequency regulation function of steam turbine by restricting opening degree of governor valve |
| CN102288842B (en) * | 2011-05-10 | 2015-10-28 | 中电普瑞科技有限公司 | Based on the primary frequency modulation on-line evaluation method that WAMS filtering AGC affects |
| CN104052072B (en) * | 2014-05-27 | 2016-07-27 | 国家电网公司 | The fired power generating unit primary frequency modulation optimal control method kept based on amplitude and system |
| CN104166093B (en) * | 2014-07-23 | 2017-05-10 | 国网上海市电力公司 | Supercritical-unit speed-regulation-system modeling parameter measurement method capable of meeting grid frequency modulation demands |
| CN105810059A (en) * | 2014-12-30 | 2016-07-27 | 中核武汉核电运行技术股份有限公司 | Conversion device used for simulating generator parallel |
| CN105044400B (en) * | 2015-08-20 | 2018-09-11 | 国家电网公司 | A kind of hydro turbine governor relates to net test frequency signal wiring switching device and method |
| CN105487010A (en) * | 2015-11-21 | 2016-04-13 | 成都科瑞信科技有限责任公司 | Bandpass filtering based automatic adjusting type motor test system capable of testing rotating speed efficiently |
| CN105467315A (en) * | 2015-11-21 | 2016-04-06 | 成都科瑞信科技有限责任公司 | Test rotating speed automation adjusting type motor test system with high-efficiency signal conversion |
| CN105353307A (en) * | 2015-12-02 | 2016-02-24 | 国家电网公司 | On-line main operating parameter monitoring system for mine motor |
| CN108008295B (en) * | 2016-11-01 | 2021-01-15 | 中国电力科学研究院有限公司 | Method for detecting frequency modulation capability of wind turbine generator |
| CN106707162B (en) * | 2016-12-21 | 2019-03-19 | 国电南瑞科技股份有限公司 | A kind of generating set regulation performance test method and platform |
| CN107818424B (en) * | 2017-11-16 | 2021-08-24 | 国网河南省电力公司电力科学研究院 | Unit operation safety adaptability evaluation method in primary frequency modulation performance test of thermal power generating unit |
| CN108649616A (en) * | 2018-05-04 | 2018-10-12 | 国网内蒙古东部电力有限公司电力科学研究院 | Generating set load serial burning control control method and system based on mains frequency variation |
| CN108767905B (en) * | 2018-05-31 | 2021-11-16 | 西安热工研究院有限公司 | Method for carrying out primary frequency modulation debugging analysis based on synchronous vector measuring device data |
| CN108646180A (en) * | 2018-08-01 | 2018-10-12 | 贵州电网有限责任公司 | Hydroelectric units primary frequency modulation dynamic realtime performance tests system and its test method |
| CN109459693A (en) * | 2018-11-14 | 2019-03-12 | 广东电网有限责任公司 | A kind of primary frequency modulation performance test method and device based on wave shape playback |
| CN109449957B (en) * | 2018-11-19 | 2020-08-11 | 国网河北能源技术服务有限公司 | Primary frequency modulation optimization method and system and terminal equipment |
| CN110376482A (en) * | 2019-06-28 | 2019-10-25 | 国电南瑞科技股份有限公司 | A kind of frequency run method suitable for sending end bulk power grid |
| CN111025071A (en) * | 2019-12-30 | 2020-04-17 | 润电能源科学技术有限公司 | Primary frequency modulation data processing method, device and system |
| CN111694338B (en) * | 2020-05-13 | 2022-05-24 | 贵州电网有限责任公司 | Energy storage and power utilization side primary frequency modulation static test system and test analysis method |
| CN111537878B (en) * | 2020-05-13 | 2022-07-05 | 贵州电网有限责任公司 | Dynamic testing system and testing analysis method for primary frequency modulation of energy storage power generation side |
| CN111650513B (en) * | 2020-05-22 | 2024-01-26 | 国网天津市电力公司电力科学研究院 | Primary frequency modulation static test method for thermal generator set |
| CN111896805B (en) * | 2020-08-05 | 2023-10-27 | 贵州电网有限责任公司 | Frequency response test signal output device and method for continuous signal output |
| CN111896833B (en) * | 2020-08-05 | 2023-07-28 | 贵州电网有限责任公司 | Off-line real-time dynamic frequency response test method |
| CN111896806B (en) * | 2020-08-05 | 2023-10-27 | 贵州电网有限责任公司 | Frequency response test system and test method |
| CN113156310A (en) * | 2021-04-23 | 2021-07-23 | 润电能源科学技术有限公司 | Primary frequency modulation test method, device and system and readable storage medium |
| CN113252326A (en) * | 2021-05-10 | 2021-08-13 | 上海昱章电气成套设备有限公司 | Testing device, system and method for speed regulator of diesel generator |
| CN114114923B (en) * | 2021-11-26 | 2024-03-26 | 广东美的暖通设备有限公司 | Determination method and determination device for control parameters, compressor system and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85204471U (en) * | 1985-10-15 | 1986-07-30 | 山东工业大学 | System for speed governing of d.c. motor |
| CN1945961A (en) * | 2006-10-26 | 2007-04-11 | 天津理工大学 | AC exciting control system of double feed wind power generator based on DSP with secondary frequency modulation and its working method |
| CN2929791Y (en) * | 2006-07-31 | 2007-08-01 | 北京紫御湾科技有限公司 | Speed regulating energy saving control system |
-
2007
- 2007-08-08 CN CN200710018434A patent/CN101105520B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85204471U (en) * | 1985-10-15 | 1986-07-30 | 山东工业大学 | System for speed governing of d.c. motor |
| CN2929791Y (en) * | 2006-07-31 | 2007-08-01 | 北京紫御湾科技有限公司 | Speed regulating energy saving control system |
| CN1945961A (en) * | 2006-10-26 | 2007-04-11 | 天津理工大学 | AC exciting control system of double feed wind power generator based on DSP with secondary frequency modulation and its working method |
Non-Patent Citations (6)
| Title |
|---|
| 戴光等.分散控制***中实现一次调频的方案研究.山西电力 131.2006,(131),30-32. |
| 戴光等.分散控制***中实现一次调频的方案研究.山西电力 131.2006,(131),30-32. * |
| 李华，张文华.水轮机调速器调节参数对机组一次调频的影响.西北电力技术33 148.2005,33(148),6-8. |
| 李华,张文华.水轮机调速器调节参数对机组一次调频的影响.西北电力技术33 148.2005,33(148),6-8. * |
| 李华.水电机组一次调频性能的测试与分析.西北电力技术33 146.2005,33(146),20-23. |
| 李华.水电机组一次调频性能的测试与分析.西北电力技术33 146.2005,33(146),20-23. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095582A (en) * | 2010-12-01 | 2011-06-15 | 山东电力研究院 | Method for measuring and acquiring accumulative work time with dynamometry load rejection test for steam turbo generator unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101105520A (en) | 2008-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101105520B (en) | Generating set primary frequency regulation test method and emulating instrument for test | |
| CN109638879A (en) | Primary frequency modulation dynamic compensation adjustment system and method based on performance indicator assessment | |
| CN107168101B (en) | Unit speed regulating system control parameter setting method considering frequency modulation and stability constraint | |
| CN104458316A (en) | Overall physical model test platform for transient process of hydropower station | |
| CN103150600B (en) | A kind of power grid security analysis system | |
| CN105005654B (en) | A kind of governing system Hybrid Real Time Simulation method comprising diversion system | |
| US9903896B2 (en) | Method for testing dynamic model parameters of wind power plant | |
| CN107989743A (en) | A kind of Kaplan turbine water-saving and synergistic adjusting method and regulating system | |
| CN204302026U (en) | Transient Process of Hydropower Station integrated physical model test platform | |
| CN103823183A (en) | Method for measuring stator open circuit transient time-constant of synchronous generator | |
| CN110673509A (en) | Electric quantity transmitter simulation system and method for semi-physical simulation platform | |
| CN101788622B (en) | Debugging test method for automatic power-generating control system | |
| CN103884931A (en) | Testing and recording device for load characteristics of transformer substation bus | |
| CN108695884A (en) | A kind of hydroelectric units primary frequency modulation checking system | |
| CN103674145A (en) | Method for metering mass flow of coal as fired of coal-fired unit in real time | |
| Jones et al. | A standard method for specifying the response of hydroelectric plant in frequency-control mode | |
| CN102707164B (en) | Field experimental method for simulating isolated network | |
| CN101452638B (en) | Electrical energy meter or power load administrative terminal verifying device | |
| CN112799373A (en) | New energy power station power control system test platform and method | |
| CN116488267B (en) | Modeling-based wind farm reactive capacity limit simulation calculation method and device | |
| CN106340967B (en) | Power station low voltage generator intelligent operation device and intelligent operation method | |
| CN109376479B (en) | Method and device for actually measuring damping characteristic of water turbine speed regulating system | |
| CN104504224A (en) | Simulation method of hydraulic turbine set transient state model | |
| CN113839422B (en) | Multi-source data acquisition method for evaluating wind power integration performance, server and intelligent terminal | |
| CN109116235A (en) | Hydropower Unit regulation performance test method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121102 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121102 Address after: 710054 No. 308 Youyi East Road, Shaanxi, Xi'an Patentee after: SHAANXI ELECTRIC POWER Research Institute Patentee after: State Grid Corporation of China Address before: 710054 No. 308 Youyi East Road, Shaanxi, Xi'an Patentee before: Shaanxi Electric Power Research Institute |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231226 Address after: 710054 No. 308 Youyi East Road, Shaanxi, Xi'an Patentee after: SHAANXI ELECTRIC POWER Research Institute Patentee after: State Grid Corporation of China Patentee after: National Network (Xi'an) Environmental Protection Technology Center Co.,Ltd. Address before: 710054 No. 308 Youyi East Road, Shaanxi, Xi'an Patentee before: SHAANXI ELECTRIC POWER Research Institute Patentee before: State Grid Corporation of China |
|
| CI03 | Correction of invention patent | ||
| CI03 | Correction of invention patent |
Correction item: Patentee|Address|Patentee Correct: Shaanxi Electric Power Research Institute|710054 No. 308 Youyi East Road, Shaanxi, Xi'an|State Grid Co., Ltd.|State Grid (Xi'an) Environmental Protection Technology Center Co., Ltd. False: Shaanxi Electric Power Research Institute|710054 No. 308 Youyi East Road, Shaanxi, Xi'an|State Grid Corporation|State Grid (Xi'an) Environmental Protection Technology Center Co., Ltd. Number: 02-02 Volume: 40 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240510 Address after: No. 669, Aerospace Middle Road, National Civil Aerospace Industry Base, Xi'an City, Shaanxi Province 710199 Patentee after: Electric Power Research Institute of State Grid Shaanxi Electric Power Co.,Ltd. Country or region after: China Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: National Network (Xi'an) Environmental Protection Technology Center Co.,Ltd. Address before: 710054 No. 308 Youyi East Road, Shaanxi, Xi'an Patentee before: SHAANXI ELECTRIC POWER Research Institute Country or region before: China Patentee before: STATE GRID CORPORATION OF CHINA Patentee before: National Network (Xi'an) Environmental Protection Technology Center Co.,Ltd. |