CN103378784A - Load command dynamic compensation method and system - Google Patents
Load command dynamic compensation method and system Download PDFInfo
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- CN103378784A CN103378784A CN2012101184906A CN201210118490A CN103378784A CN 103378784 A CN103378784 A CN 103378784A CN 2012101184906 A CN2012101184906 A CN 2012101184906A CN 201210118490 A CN201210118490 A CN 201210118490A CN 103378784 A CN103378784 A CN 103378784A
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Abstract
The invention relates to a load command dynamic compensation method and system. The method includes the steps of receiving a target load command LDC2 output by a load command LDC1 after passing through a communication network and remote terminal equipment, and performing differential operation on the LDC2 to generate a command variation; if the absolute value ABS of the command variation changes, receiving the value of the difference between an actual load command LDC3 and the LDC2, wherein the difference value is generated after the LDC2 undergoes rate limitation; performing amplitude limiting on the difference value to generate an amplitude limiting value delta; obtaining the amplitude limiting result of the command variation, and multiplying the amplitude limiting result by the delta to generate a dynamic accuracy compensation value; inputting the dynamic accuracy compensation value into an input end of a power regulator of a CCS control unit to perform dynamic accuracy compensation, and after limiting the amplitude of the dynamic accuracy compensation value, inputting the dynamic accuracy compensation value into an output end of the power regulator to perform fast dynamic compensation.
Description
Technical field
The invention relates to thermal power generating technology, about automatic generation control (the Automatic Generation Control AGC) technology of thermal power generation unit, is about a kind of load instruction dynamic compensation method and system concretely particularly.
Background technology
The AGC technology is to guarantee the power grid security economical operation, improves one of important measures of operation of power networks level, and generating set AGC characteristic appreciable impact security of system maintenance level is the important content that net factory is coordinated.Under the situation of national network, for improving electrical network AGC running quality, guarantee interconnection control level between mains frequency quality and net, regional electricity prison office puts into effect " the factory's assistant service management implementation detailed rules and regulations of generating electricity by way of merging two or more grid systems " and " power plant be incorporated into the power networks management implementation detailed rules and regulations " of one's respective area in succession since 2008, generating set AGC performance is carried out the economy examination, proposed requirements at the higher level for AGC control quality index.
For improving the AGC ability of thermal power generation unit, at present, generally follow following principle in the prior art:
(1) CCS side designing requirement: the unit that adopts scattered control system (DCS) and have unit cooperative control and AGC function, for satisfying AGC control quality requirements, must select " stove is with machine " CCS control model, namely take load responding faster the steamer pusher side carry out power adjustments, and the slower boiler side of load-responsive is carried out unit master vapour pressure and control of steam temperature.The CCS side is finished and is coordinated control mode switch and carry out power adjustments, the instruction of output integrated valve position.Thermal power generation unit AGC typical control circuit as shown in Figure 1.
(2) DEH side designing requirement: unit is finished the AGC control function of power jointly by DEH, CCS.The DEH side operates in the control of valve position mode under the unit cooperative control model, DEH accepts the instruction of CCS control output integrated valve position.Each adjuster valve is finally finished the real task of sending out the instruction of power response machine unit scheduling load according to the action of rating curve response comprehensive valve bit instruction.
By above design, generating set can be in time, accurately response scheduling load instruction, and high-quality electric energy is provided.
The inventor finds to exist at least in the prior art following deficiency in realizing process of the present invention:
The load instruction LDC1 that traffic department sends is through the computing output 4-20mA signal of network service and far-end control appliance (RTU), the target load instruction LDC2 that final unit DCS control system is received, AGC instruction as side of generating set, its signal instruction LDC1 that just loads itself has and certain delay and decay, as shown in Figure 2.Real-time and the accuracy of real power response scheduling of final unit load are relatively poor.
Although this design has realized the AGC function of unit, but for moment of the dispatch command that prevents from receiving significantly changes and causes suddenly a large amount of losses of unit accumulation of heat, finally affect unit safety stable operation, the AGC typical control circuit of Fig. 1 has designed load " rate limit " module, therefore the dispatch command of any form (generally including step and ramp signal) all is subject to its rate limit, changes the response time index thereby have a strong impact on unit load.
For example, certain 1000MW machine unit scheduling instruction LDC1 constantly rises to 800MW by the 600MW step at T1, and unit receives that instruction LDC2 then constantly slowly is changed to the instruction that is slightly less than 800MW at T2, exists to lag behind and decay.
Again for example, certain generating set carries out 200MW load up upset test at the 600MW load condition, through scheduling side signal LDC1 and Generation Side signal LDC2 contrast unit load instruction steady state deviation 4MW, disturbance moment instruction deviation is larger, and the load instruction response lag time reaches 3 seconds.
Summary of the invention
The invention provides a kind of load instruction dynamic compensation method and system, to improve control precision and the response time of unit AGC.
To achieve these goals, the invention provides a kind of load instruction dynamic compensation method, the method comprises: receive the target load instruction LDC2 that load instruction LDC1 exports after through communication network and RTU (remote terminal unit) RTU, and described LDC2 differentiated generate the instruction variable quantity; If the absolute value ABS of described instruction variable quantity changes, receive described LDC2 and carry out the actual load instruction LDC3 that generates after the rate limit and the difference of described LDC2, to described difference amplitude limiting processing, generate the amplitude limit value Δ; Obtain the amplitude limiting processing result of described instruction variable quantity, and described amplitude limiting processing result is carried out the phase multiplication with Δ, generate the dynamic accuracy offset; The input that described dynamic accuracy offset is input to the power governor of CCS control unit carries out the dynamic accuracy compensation, and the output that is input to described power governor behind the described dynamic accuracy offset amplitude limit is carried out dynamically fast compensation.
Further, with described dynamic accuracy offset amplitude limit, comprising: obtain the comprehensive valve bit instruction aperture Z of unit under specified main steam pressure and full load operating mode; Be 2%Z with described dynamic accuracy offset amplitude limit.
Further, the amplitude limiting processing result of described instruction variable quantity is 2%Pe.
Further, to described difference amplitude limiting processing, generate the amplitude limit value Δ, comprising: to described difference amplitude limiting processing, so that when described instruction variable quantity amplitude limit is 2%Pe, reach maximum amplitude limit Δ=1.
To achieve these goals, the present invention also provides a kind of load instruction dynamic compensating system, this system: instruction variable quantity generation unit, be used for to receive the target load instruction LDC2 that load instruction LDC1 exports after through communication network and RTU (remote terminal unit) RTU, and described LDC2 differentiated generate the instruction variable quantity; Difference amplitude limit unit is used for receiving described LDC2 and carries out the actual load instruction LDC3 and the difference of described LDC2 that generate after the rate limit, to described difference amplitude limiting processing, and generation amplitude limit value Δ; The offset generation unit is used for obtaining the amplitude limiting processing result of described instruction variable quantity, and described amplitude limiting processing result is carried out the phase multiplication with Δ, generation dynamic accuracy offset; The dynamic compensation unit, carry out the dynamic accuracy compensation for the input that described dynamic accuracy offset is input to the power governor of CCS control unit, and the output that is input to described power governor behind the described dynamic accuracy offset amplitude limit is carried out dynamically fast compensation.
Further, described dynamic compensation unit comprises: the accuracy compensation module, carry out the dynamic accuracy compensation for the input that described dynamic accuracy offset is input to the power governor of CCS control unit; Compensating module is used for the output that is input to described power governor behind the described dynamic accuracy offset amplitude limit is carried out dynamically fast compensation fast.
Further, the amplitude with described dynamic accuracy offset amplitude limit is 2%Z.
Further, the amplitude limit of described instruction variable quantity is 2%Pe.
Further, when described instruction variable quantity amplitude limit is 2%Pe, reach maximum amplitude limit Δ=1.
The useful technique effect of the embodiment of the invention is,
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.In the accompanying drawings:
Fig. 1 is the thermal power generation unit AGC typical control circuit schematic diagram of prior art;
Fig. 2 is certain the 1000MW unit AGC step/slope load instruction change curve under the thermal power generation unit AGC typical control circuit of prior art;
Fig. 3 is embodiment of the invention load instruction dynamic compensation method flow chart;
Fig. 4 is embodiment of the invention compensation correction control loop schematic diagram;
Fig. 5 is embodiment of the invention function f
1(x) amplitude limit schematic diagram;
Fig. 6 is embodiment of the invention function f
3(x) amplitude limit schematic diagram;
Fig. 7 is embodiment of the invention function f
2(x) amplitude limit schematic diagram;
Fig. 8 is embodiment of the invention load instruction dynamic compensating system structured flowchart;
Fig. 9 is the structured flowchart of embodiment of the invention dynamic compensation unit.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, below in conjunction with accompanying drawing the embodiment of the invention is described in further details.At this, illustrative examples of the present invention and explanation thereof are used for explanation the present invention, but not as a limitation of the invention.
For improving thermal power generation unit AGC ability, the invention provides a kind of load instruction dynamic compensation method and system, designed a kind of new control loop, to improve control precision and the response time of unit AGC, when new AGC control loop moves in the response scheduling instruction, in time fast prediction load variations trend shortens a real power response dispatch command time of unit, greatly improves unit and participates in AGC action accuracy and AGC control quick performance index.
As shown in Figure 3, present embodiment provides a kind of load instruction dynamic compensation method, and the method comprises:
Step S301: receive the target load instruction LDC2 that load instruction LDC1 exports after through communication network and RTU (remote terminal unit) RTU, and described LDC2 differentiated generate the instruction variable quantity.
In order to solve the problem that exists the load instruction to lag behind and decay in the prior art, the application has designed new control loop on the basis of Fig. 1, is the improvement on Fig. 1 basis in the dotted line frame among Fig. 4.As shown in Figure 4, the load scheduling instruction LDC1 that traffic department sends arrives remote control equipment (Remote Terminal Unit RTU) through network communication and transmission, RTU export target load instruction LDC2, LDC2 differentiated obtains loading the instruction variable quantity of instruction.
After this step S301, can carry out amplitude limiting processing to described instruction variable quantity, generate the amplitude limiting processing result.Concrete amplitude limit method is that described instruction variable quantity is input to f
1(x) carry out amplitude limiting processing, f
1(X) be the function of LDC2 instruction differential, the larger representative instruction of differential result value dynamic deviation is larger, then the design compensation function f
1(x) the output result consistent with the trend prediction direction is larger.(and " automatic generation control (AGC) operational management regulation " requires unit load dynamic deviation index not exceed the regulation of 2%Pe, penalty function f according to " thermal power plant analog control system Acceptance Test rules "
1(x) output area should be no more than ± 2%Pe in theory, so can be 2%Pe with instruction variable quantity amplitude limit.Function f
1(x) content design principle as shown in Figure 5.
Above-mentioned described instruction variable quantity is carried out the step of amplitude limiting processing also can be after step S302 or step S303, the present invention is not as limit.
By the instruction variable quantity of LDC2 being differentiated generating, can carry out trend prediction to the load instruction.
Step S302: whether the absolute value ABS of the described instruction variable quantity of real-time judge changes, and if so, carries out step S303.
The functional module ABS that the instruction variable quantity is input to Fig. 4 obtains the absolute value of instruction variable quantity, ABS is input to diverter switch T with the absolute value of instruction variable quantity in real time, whether the absolute value of diverter switch T decision instruction variable quantity changes, and if so, carries out step S303.
Step S303: receive described LDC2 and carry out the actual load instruction LDC3 that generates after the rate limit and the difference of described LDC2, to described difference amplitude limiting processing, generate the amplitude limit value Δ.
Before step S303, need to calculate in real time the difference that actual load instruction LDC3 and target meet instruction LDC2, when the absolute value of diverter switch T decision instruction variable quantity changes, the difference of LDC3 and LDC2 is input to the rectification function f
3(x) carry out amplitude limiting processing and generate amplitude limit amplitude Δ.f
3(x) be that unit load instruction variable quantity is to f
1(x) rectification function, f
3(x) design function content principle during to described difference amplitude limiting processing, when described instruction variable quantity amplitude limit is 2%Pe, reaches maximum amplitude limit Δ=1 as shown in Figure 6.
Step S304: obtain the amplitude limiting processing result of described instruction variable quantity, and described amplitude limiting processing result is carried out the phase multiplication with Δ, generate the dynamic accuracy offset.
For fear of unit by a small margin step instruction load disturbance cause f
1(x) the excessive problem of offset data has designed f
3(x) to f
1(x) carry out multiplication and correct, Output rusults is as final accuracy compensation data (dynamic accuracy offset).
Step S305: the input that described dynamic accuracy offset is input to the power governor of CCS control unit carries out the dynamic accuracy compensation, and the output that is input to described power governor behind the described dynamic accuracy offset amplitude limit is carried out dynamically fast compensation.
As shown in Figure 4, the input of the power governor PID of dynamic accuracy offset input existing " stove is with machine " pattern CCS control unit carries out summation operation, finishes the dynamic accuracy compensation.
In order to carry out dynamically fast compensation, the dynamic accuracy offset need to be input to function F 2 (X) and carry out amplitude limiting processing, obtaining the comprehensive valve bit instruction aperture Z of unit under specified main steam pressure and full load operating mode then is 2%Z with described dynamic accuracy offset amplitude limit, the output that is input at last described power governor carries out summation operation, finishes dynamically fast compensation.
f
2(x) be the quick penalty function of AGC load instruction dynamic response, can remedy signal because the real response speed of sending out power is accelerated in the delay that transmission causes.In the practical application, in the situation of determining unit valve flow curve linear, obtaining unit comprehensive valve bit instruction aperture under specified main steam pressure and full load operating mode is Z (%), then designs f
2(x) the output amplitude peak is no more than 2% * Z (%).Function content design principle as shown in Figure 7.
Through dynamic accuracy compensation and dynamically fast the Steam Turhine Adjustment instruction after the compensation finally be input to turbo generator set, by above-mentioned dynamic accuracy compensation and dynamically fast compensation, can load responding precision and rapidity, the overall performance of GGC is provided.
The present invention need to according to shown in Figure 3, finish design, configuration and the lower dress of unit DCS or other control platform schemes when concrete operations.After the normal operation of unit, carry out respectively AGC step and slope instruction test in 50%-100% rated load interval, by various different varying duty speed upset tests, obtain the relation curve F of load changing rate and unit load instruction accuracy compensation
1(X), determine F according to the large small test of load step quantitative changeization
3(X), compensate fast function F according to the data pacing of obtaining
2(X).
Do not superpose when it should be noted that by sequence control system restriction accuracy compensation function and the equidirectional action of unit primary frequency modulation and work high choosing output.By sequence control system design AGC direction of action and unit primary frequency modulation direction of action not simultaneously, the high action of selection priority.
The useful technique effect of the embodiment of the invention is, by load instruction dynamic compensation method of the present invention and system, so that AGC when action, the LDC2 load instruction of receiving with the responder winding by AGC typical control circuit action steam turbine regulating valve shown in Figure 1 is on the one hand judged the load variations direction by AGC control loop prediction of the present invention on the other hand; By the dynamic accuracy compensation, can compensate dispatch command LDC1 because hysteresis and the decay that signals transmission causes improves the real precision of sending out power dynamic response AGC instruction; Can improve the real speed of sending out power response AGC instruction of unit by dynamically quick compensation, thereby improve the whole AGC performance of unit, satisfy the technical requirement of electrical network and power monitoring department, strengthen economic benefit and social benefit that the thermal power generation unit participates in the AGC examination.
As shown in Figure 8, present embodiment provides a kind of load instruction dynamic compensating system, this load instruction dynamic compensating system: instruction variable quantity generation unit 801, difference amplitude limit unit 802, offset generation unit 803 and dynamic compensation unit 804.
Instruction variable quantity generation unit 801 is used for receiving the target load instruction LDC2 that load instruction LDC1 exports after through communication network and RTU (remote terminal unit) RTU, and described LDC2 differentiated generates the instruction variable quantity.
In order to solve the problem that exists the load instruction to lag behind and decay in the prior art, the application has designed new control loop on the basis of Fig. 1, is the improvement on Fig. 1 basis in the dotted line frame among Fig. 4.As shown in Figure 4, the load scheduling instruction LDC1 that traffic department sends arrives remote control equipment (Remote Terminal Unit RTU) through network communication and transmission, RTU export target load instruction LDC2, LDC2 differentiated obtains loading the instruction variable quantity of instruction.
After generating the instruction variable quantity, can carry out amplitude limiting processing to described instruction variable quantity, generate the amplitude limiting processing result.Concrete amplitude limit method is that described instruction variable quantity is input to f
1(x) carry out amplitude limiting processing, f
1(X) be the function of LDC2 instruction differential, the larger representative instruction of differential result value dynamic deviation is larger, then the design compensation function f
1(x) the output result consistent with the trend prediction direction is larger.(and " automatic generation control (AGC) operational management regulation " requires unit load dynamic deviation index not exceed the regulation of 2%Pe, penalty function f according to " thermal power plant analog control system Acceptance Test rules "
1(x) output area should be no more than ± 2%Pe in theory, so can be 2%Pe with instruction variable quantity amplitude limit.
By the instruction variable quantity of LDC2 being differentiated generating, can carry out trend prediction to the load instruction.
Difference amplitude limit unit 802 is used for receiving described LDC2 and carries out the actual load instruction LDC3 and the difference of described LDC2 that generate after the rate limit, to described difference amplitude limiting processing, and generation amplitude limit value Δ.
The functional module ABS that the instruction variable quantity is input to Fig. 4 obtains the absolute value of instruction variable quantity, ABS is input to diverter switch T with the absolute value of instruction variable quantity in real time, whether the absolute value of diverter switch T decision instruction variable quantity changes, if change, receive described LDC2 and carry out the actual load instruction LDC3 that generates after the rate limit and the difference of described LDC2, to described difference amplitude limiting processing, generate the amplitude limit value Δ.
Before difference amplitude limit unit 802 carries out amplitude limiting processing, need to calculate in real time the difference that actual load instruction LDC3 and target meet instruction LDC2, when the absolute value of diverter switch T decision instruction variable quantity changes, the difference of LDC3 and LDC2 is input to the rectification function f
3(x) carry out amplitude limiting processing and generate amplitude limit amplitude Δ.f
3(x) be that unit load instruction variable quantity is to f
1(x) rectification function during to described difference amplitude limiting processing, when described instruction variable quantity amplitude limit is 2%Pe, reaches maximum amplitude limit Δ=1.
Offset generation unit 803 is used for obtaining the amplitude limiting processing result of described instruction variable quantity, and described amplitude limiting processing result is carried out the phase multiplication with Δ, generates the dynamic accuracy offset.
For fear of unit by a small margin step instruction load disturbance cause f
1(x) the excessive problem of offset data has designed f
3(x) to f
1(x) carry out multiplication and correct, Output rusults is as final accuracy compensation data (dynamic accuracy offset).
As shown in Figure 9, dynamic compensation unit 804 comprises: accuracy compensation module 901 and quick compensating module 902.
As shown in Figure 4, accuracy compensation module 901 is carried out summation operation with the input of the power governor PID of dynamic accuracy offset input existing " stove is with machine " pattern CCS control unit, finishes the dynamic accuracy compensation.
In order to carry out dynamically fast compensation, quick compensating module 902 need to be input to the dynamic accuracy offset function f 2 (x) and carry out amplitude limiting processing, obtaining the comprehensive valve bit instruction aperture Z of unit under specified main steam pressure and full load operating mode then is 2%Z with described dynamic accuracy offset amplitude limit, the output that is input at last described power governor carries out summation operation, finishes dynamically fast compensation.
f
2(x) be the quick penalty function of AGC load instruction dynamic response, can remedy signal because the real response speed of sending out power is accelerated in the delay that transmission causes.In the practical application, in the situation of determining unit valve flow curve linear, obtaining unit comprehensive valve bit instruction aperture under specified main steam pressure and full load operating mode is Z (%), then designs f
2(x) the output amplitude peak is no more than 2% * Z (%).
Through dynamic accuracy compensation and dynamically fast the Steam Turhine Adjustment instruction after the compensation finally be input to turbo generator set, by above-mentioned dynamic accuracy compensation and dynamically fast compensation, can load responding precision and rapidity, the overall performance of GGC is provided.
The useful technique effect of the embodiment of the invention is, by load instruction dynamic compensation method of the present invention and system, so that AGC when action, the LDC2 load instruction of receiving with the responder winding by AGC typical control circuit action steam turbine regulating valve shown in Figure 1 is on the one hand judged the load variations direction by AGC control loop prediction of the present invention on the other hand; By the dynamic accuracy compensation, can compensate dispatch command LDC1 because hysteresis and the decay that signals transmission causes improves the real precision of sending out power dynamic response AGC instruction; Can improve the real speed of sending out power response AGC instruction of unit by dynamically quick compensation, thereby improve the whole AGC performance of unit, satisfy the technical requirement of electrical network and power monitoring department, strengthen economic benefit and social benefit that the thermal power generation unit participates in the AGC examination.
Claims (9)
1. load instruction dynamic compensation method is characterized in that described method comprises:
Receive the target load instruction LDC2 that load instruction LDC1 exports after through communication network and RTU (remote terminal unit) RTU, and described LDC2 differentiated generate the instruction variable quantity;
If the absolute value ABS of described instruction variable quantity changes, receive described LDC2 and carry out the actual load instruction LDC3 that generates after the rate limit and the difference of described LDC2, to described difference amplitude limiting processing, generate the amplitude limit value Δ;
Obtain the amplitude limiting processing result of described instruction variable quantity, and described amplitude limiting processing result is carried out the phase multiplication with Δ, generate the dynamic accuracy offset;
The input that described dynamic accuracy offset is input to the power governor of CCS control unit carries out the dynamic accuracy compensation, and the output that is input to described power governor behind the described dynamic accuracy offset amplitude limit is carried out dynamically fast compensation.
2. method according to claim 1 is characterized in that, with described dynamic accuracy offset amplitude limit, comprising:
Obtain the comprehensive valve bit instruction aperture Z of unit under specified main steam pressure and full load operating mode;
Be 2%Z with described dynamic accuracy offset amplitude limit.
3. method according to claim 1 is characterized in that, the amplitude limiting processing result of described instruction variable quantity is 2%Pe.
4. method according to claim 3 is characterized in that, to described difference amplitude limiting processing, generates the amplitude limit value Δ, comprising: to described difference amplitude limiting processing, so that when described instruction variable quantity amplitude limit is 2%Pe, reach maximum amplitude limit Δ=1.
5. load instruction dynamic compensating system is characterized in that described system:
Instruction variable quantity generation unit be used for to receive the target load instruction LDC2 that load instruction LDC1 exports after through communication network and RTU (remote terminal unit) RTU, and described LDC2 differentiated generates the instruction variable quantity;
Difference amplitude limit unit is used for receiving described LDC2 and carries out the actual load instruction LDC3 and the difference of described LDC2 that generate after the rate limit, to described difference amplitude limiting processing, and generation amplitude limit value Δ;
The offset generation unit is used for obtaining the amplitude limiting processing result of described instruction variable quantity, and described amplitude limiting processing result is carried out the phase multiplication with Δ, generation dynamic accuracy offset;
The dynamic compensation unit, carry out the dynamic accuracy compensation for the input that described dynamic accuracy offset is input to the power governor of CCS control unit, and the output that is input to described power governor behind the described dynamic accuracy offset amplitude limit is carried out dynamically fast compensation.
6. system according to claim 5 is characterized in that, described dynamic compensation unit comprises:
The accuracy compensation module is carried out the dynamic accuracy compensation for the input that described dynamic accuracy offset is input to the power governor of CCS control unit;
Compensating module is used for the output that is input to described power governor behind the described dynamic accuracy offset amplitude limit is carried out dynamically fast compensation fast.
7. system according to claim 5 is characterized in that, is 2%Z with the amplitude of described dynamic accuracy offset amplitude limit.
8. system according to claim 5 is characterized in that, the amplitude limit of described instruction variable quantity is 2%Pe.
9. system according to claim 8 is characterized in that, when described instruction variable quantity amplitude limit is 2%Pe, reaches maximum amplitude limit Δ=1.
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| CN105022299A (en) * | 2015-07-21 | 2015-11-04 | 国网天津市电力公司 | Method for improving AGC load response rapidity |
| CN108227501A (en) * | 2018-01-16 | 2018-06-29 | 云南电网有限责任公司电力科学研究院 | A kind of compensation method of fired power generating unit spatial load forecasting static deviation |
| CN111520700A (en) * | 2020-04-03 | 2020-08-11 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | Differential calculation method based on real-time correction of boiler main steam pressure regulation deviation |
| CN111614128A (en) * | 2020-05-20 | 2020-09-01 | 国网河北省电力有限公司电力科学研究院 | AGC coordinated control optimization method for heat supply unit under new energy grid-connected background |
| CN111619366A (en) * | 2020-05-28 | 2020-09-04 | 清华大学 | Control system and control method based on motor rotation and wheel speed sensor |
| CN112186778A (en) * | 2020-09-12 | 2021-01-05 | 江苏方天电力技术有限公司 | Primary frequency modulation optimization control method and system |
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| CN105022299A (en) * | 2015-07-21 | 2015-11-04 | 国网天津市电力公司 | Method for improving AGC load response rapidity |
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| CN108227501A (en) * | 2018-01-16 | 2018-06-29 | 云南电网有限责任公司电力科学研究院 | A kind of compensation method of fired power generating unit spatial load forecasting static deviation |
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| CN111520700A (en) * | 2020-04-03 | 2020-08-11 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | Differential calculation method based on real-time correction of boiler main steam pressure regulation deviation |
| CN111520700B (en) * | 2020-04-03 | 2021-11-23 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | Differential calculation method based on real-time correction of boiler main steam pressure regulation deviation |
| CN111614128A (en) * | 2020-05-20 | 2020-09-01 | 国网河北省电力有限公司电力科学研究院 | AGC coordinated control optimization method for heat supply unit under new energy grid-connected background |
| CN111619366A (en) * | 2020-05-28 | 2020-09-04 | 清华大学 | Control system and control method based on motor rotation and wheel speed sensor |
| CN112186778A (en) * | 2020-09-12 | 2021-01-05 | 江苏方天电力技术有限公司 | Primary frequency modulation optimization control method and system |
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