CN105202571A - Thermal generator set main steam pressure optimization control method - Google Patents
Thermal generator set main steam pressure optimization control method Download PDFInfo
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Abstract
The invention discloses a thermal generator set main steam pressure optimization control method which comprises the following steps: calculating a main steam pressure deviation signal and a load deviation signal of a target thermal generator set; respectively judging the demands of load deviation and main steam pressure deviation for fuel increase/decrease, and adjusting control parameters of a PID (proportional-integral-derivative) controller; if the two demands are identical, adjusting the control parameters of the PID controller to enhance the adjustment action of the PID controller on the amount of fuel entering the boiler; if the two demands are different, adjusting the control parameters of the PID controller to reduce the adjustment action of the PID controller on the amount of fuel entering the boiler; and adjusting the amount of fuel entering the boiler by using the PID controller according to the output amount obtained by PID calculation on the basis of the main steam pressure deviation signal. The method can enable the thermal generator set to quickly respond to the network load demand when the network load demand changes, can also prevent the main steam pressure deviation from overranging and keep the boiler combustion stable, and enhances the load response property and operation stability of the thermal generator set.
Description
Technical field
The present invention relates to thermal power generation unit Control Engineering technology, be specifically related to a kind of thermal power generation unit main vapour pressure optimal control method.
Background technology
Along with UHV transmission line puts into operation successively, and the extensive use of the new forms of energy such as wind-powered electricity generation, solar energy, electric network composition is increasingly sophisticated.For ensureing making full use of of the quality of power supply and clean energy resource, power network dispatching system requires that thermal power generation unit has load responding performance and adjusting function fast, and the degree of depth participates in peak load regulation network, frequency modulation.Steam turbine is a quick response object, and boiler combustion process then has large time delay, and the contradiction between the rapidity of Steam Turhine Adjustment load and boiler combustion process hysteresis quality is also just more and more outstanding.How can make full use of the throttle flow load-responsive change that boiler heat storage changes steam turbine, can ensure that again the main vapour pressure deviation of boiler does not go beyond the scope, maintain boiler combustion and stablize, higher requirement is proposed to the fuel regulation of boiler.In Coordinate Control of Fossil-fired Generating Sets, adopt the deviation signal of main vapour pressure and its setting value, through PID arithmetic, regulate the fuel quantity entering boiler.Owing to changing to boiler heat load change from fuel quantity, and the change of main steam pressure has and necessarily delays.When unit load changes in demand, easily occur that main vapour pressure regulates and do not mate even conflicting situation with unit load demand, cause main vapour pressure deviation to transfinite, affect boiler combustion and stablize and unit load response performance.
Summary of the invention
The technical problem to be solved in the present invention: for the problems referred to above of prior art, a kind of demand that can make the quick responsive electricity grid load of thermal power generation unit when network load changes in demand is provided, can ensure that again main vapour pressure deviation does not transfinite, maintain boiler combustion to stablize, improve the load responding performance of thermal power generation unit and the thermal power generation unit main vapour pressure optimal control method of operation stability.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of thermal power generation unit main vapour pressure optimal control method, step comprises:
1) the main vapour pressure setting value of target thermal power generation unit is deducted main vapour pressure and obtain main vapour pressure deviation signal △
p;
2) load instruction of target thermal power generation unit is deducted actual load and obtain load deviation signal △
l;
3) according to load deviation signal △
ljudge the increase and decrease demand of target thermal power generation unit load deviation to fuel, according to main vapour pressure deviation signal △
pjudge that target thermal power generation unit main vapour pressure deviation is to the increase and decrease demand of fuel; According to target thermal power generation unit load deviation, the increase and decrease demand of fuel, main vapour pressure deviation are regulated to the controling parameters of PID controller to the increase and decrease demand of fuel, if load deviation is identical with the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, then regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler; If load deviation is different from the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, then regulate the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler;
4) by main vapour pressure deviation signal △
pinput described PID controller, described PID controller calculates PID arithmetic output quantity based on regulating the controling parameters obtained, and is regulated the fuel quantity entering boiler by described PID arithmetic output quantity.
Preferably, the detailed step of described step 3) comprises:
3.1) target thermal power generation unit load deviation signal △ is judged
lbetween-5MW ~+5MW, main vapour pressure deviation signal △
pbetween-0.1MPa ~+0.1MPa, whether two conditions meet simultaneously, if two conditions meet simultaneously, then judge that target thermal power generation unit is in steady state condition, arranges proportional gain in the controling parameters of PID controller
kpvalue be the first preset value A, the time of integration
tivalue be the second preset value B, differential coefficient
kdvalue be the 3rd preset value C, redirect perform step 4); Otherwise redirect performs next step;
3.2) load deviation signal △ is judged
lbe greater than+5MW, main vapour pressure deviation signal △
pbe less than-0.1MPa two conditions whether to set up simultaneously, if above-mentioned two conditions are set up simultaneously, then judge load deviation to the increase and decrease demand of fuel as increasing fuel, main vapour pressure deviation to the increase and decrease demand of fuel as reducing fuel, load deviation is different from the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, regulate the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler, redirect performs step 4); Otherwise redirect performs next step;
3.3) load deviation signal △ is judged
lbe greater than+5MW, main vapour pressure deviation signal △
pbe greater than+0.1MPa two conditions whether to set up simultaneously, if above-mentioned two conditions are set up simultaneously, then judge load deviation to the increase and decrease demand of fuel as increasing fuel, main vapour pressure deviation to the increase and decrease demand of fuel as increasing fuel, load deviation is identical with the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler, redirect execution step 4); Otherwise redirect performs next step;
3.4) load deviation signal △ is judged
lbe less than-5MW, main vapour pressure deviation signal △
pbe less than-0.1MPa two conditions whether to set up simultaneously, if above-mentioned two conditions are set up simultaneously, then judge load deviation to the increase and decrease demand of fuel as reducing fuel, main vapour pressure deviation to the increase and decrease demand of fuel as reducing fuel, load deviation is identical with the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler, redirect execution step 4); Otherwise redirect performs next step;
3.5) load deviation signal △ is judged
lbe less than-5MW, main vapour pressure deviation signal △
pbe greater than+0.1MPa two conditions whether to set up simultaneously, if above-mentioned two conditions are set up simultaneously, then judge load deviation to the increase and decrease demand of fuel as reducing fuel, main vapour pressure deviation to the increase and decrease demand of fuel as increasing fuel, load deviation is different from the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, regulates the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler; Finally, redirect performs step 4).
Preferably, described step 3.2) and 3.5) in regulate the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler, specifically refer to the proportional gain in the controling parameters of PID controller
kpvalue be set to be less than the first preset value A, the time of integration
tivalue be set to be greater than the second preset value B.
Preferably, described step 3.3) and 3.4) in regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler, specifically refer to the proportional gain in the controling parameters of PID controller
kpvalue be set to be greater than the first preset value A, the time of integration
tivalue be set to be less than the second preset value B.
Preferably, described step 3.2) in regulate the controling parameters of PID controller after, proportional gain
kpvalue be 0.7A, wherein A represents the first preset value; The time of integration
tivalue be 1.5B, wherein B represents the second preset value.
Preferably, described step 3.5) in regulate the controling parameters of PID controller after, proportional gain
kpvalue be 0.7A, wherein A represents the first preset value; The time of integration
tivalue be 1.5B, wherein B represents the second preset value.
Preferably, described step 3.3) in regulate the controling parameters of PID controller after, proportional gain
kpvalue be 1.2A, wherein A represents the first preset value; The time of integration
tivalue be 0.8B, wherein B represents the second preset value.
Preferably, described step 3.4) in regulate the controling parameters of PID controller after, proportional gain
kpvalue be 1.2A, wherein A represents the first preset value; The time of integration
tivalue be 0.8B, wherein B represents the second preset value.
Preferably, the value of described 3rd preset value C is 0.
Thermal power generation unit main vapour pressure optimal control method of the present invention has following advantage: the present invention is according to load deviation signal △
ljudge the increase and decrease demand of target thermal power generation unit load deviation to fuel, according to main vapour pressure deviation signal △
pjudge that target thermal power generation unit main vapour pressure deviation is to the increase and decrease demand of fuel; According to target thermal power generation unit load deviation, the increase and decrease demand of fuel, main vapour pressure deviation are regulated to the controling parameters of PID controller to the increase and decrease demand of fuel, if load deviation is identical with the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, then regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler; If load deviation is different from the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, then regulate the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler, thus make the fuel quantity of thermal power generation unit and boiler heat load, network load demand consistent, the demand of the quick responsive electricity grid load of thermal power generation unit can be made when network load changes in demand, can ensure that again main vapour pressure deviation does not transfinite, maintain boiler combustion to stablize, improve load responding performance and the operation stability of thermal power generation unit.
Accompanying drawing explanation
Fig. 1 is the fundamental quantity schematic flow sheet of embodiment of the present invention method.
Detailed description of the invention
As shown in Figure 1, the step of the present embodiment thermal power generation unit main vapour pressure optimal control method comprises:
1) the main vapour pressure setting value of target thermal power generation unit is deducted main vapour pressure and obtain main vapour pressure deviation signal △
p;
2) load instruction of target thermal power generation unit is deducted actual load and obtain load deviation signal △
l;
3) according to load deviation signal △
ljudge the increase and decrease demand of target thermal power generation unit load deviation to fuel, according to main vapour pressure deviation signal △
pjudge that target thermal power generation unit main vapour pressure deviation is to the increase and decrease demand of fuel; According to target thermal power generation unit load deviation, the increase and decrease demand of fuel, main vapour pressure deviation are regulated to the controling parameters of PID controller to the increase and decrease demand of fuel, if load deviation is identical with the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, then regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler; If load deviation is different from the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, then regulate the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler;
4) by main vapour pressure deviation signal △
pinput described PID controller, described PID controller calculates PID arithmetic output quantity based on regulating the controling parameters obtained, and is regulated the fuel quantity entering boiler by described PID arithmetic output quantity.
In the present embodiment, the detailed step of step 3) comprises:
3.1) target thermal power generation unit load deviation signal △ is judged
lbetween-5MW ~+5MW, main vapour pressure deviation signal △
pbetween-0.1MPa ~+0.1MPa, whether two conditions meet simultaneously, if two conditions meet simultaneously, then judge that target thermal power generation unit is in steady state condition, arranges proportional gain in the controling parameters of PID controller
kpvalue be the first preset value A, the time of integration
tivalue be the second preset value B, differential coefficient
kdvalue be the 3rd preset value C, redirect perform step 4); Otherwise redirect performs next step; In the present embodiment, the first preset value A, the second preset value B are obtained by Adjustment Tests on target thermal power generation unit;
3.2) load deviation signal △ is judged
lbe greater than+5MW, main vapour pressure deviation signal △
pbe less than-0.1MPa two conditions whether to set up simultaneously, if above-mentioned two conditions are set up simultaneously, then judge load deviation to the increase and decrease demand of fuel as increasing fuel, main vapour pressure deviation to the increase and decrease demand of fuel as reducing fuel, load deviation is different from the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, regulate the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler, redirect performs step 4); Otherwise redirect performs next step;
3.3) load deviation signal △ is judged
lbe greater than+5MW, main vapour pressure deviation signal △
pbe greater than+0.1MPa two conditions whether to set up simultaneously, if above-mentioned two conditions are set up simultaneously, then judge load deviation to the increase and decrease demand of fuel as increasing fuel, main vapour pressure deviation to the increase and decrease demand of fuel as increasing fuel, load deviation is identical with the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler, redirect execution step 4); Otherwise redirect performs next step;
3.4) load deviation signal △ is judged
lbe less than-5MW, main vapour pressure deviation signal △
pbe less than-0.1MPa two conditions whether to set up simultaneously, if above-mentioned two conditions are set up simultaneously, then judge load deviation to the increase and decrease demand of fuel as reducing fuel, main vapour pressure deviation to the increase and decrease demand of fuel as reducing fuel, load deviation is identical with the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler, redirect execution step 4); Otherwise redirect performs next step;
3.5) load deviation signal △ is judged
lbe less than-5MW, main vapour pressure deviation signal △
pbe greater than+0.1MPa two conditions whether to set up simultaneously, if above-mentioned two conditions are set up simultaneously, then judge load deviation to the increase and decrease demand of fuel as reducing fuel, main vapour pressure deviation to the increase and decrease demand of fuel as increasing fuel, load deviation is different from the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, regulates the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler; Finally, redirect performs step 4).
In the present embodiment, step 3.2) and 3.5) in regulate the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler, specifically refer to the proportional gain in the controling parameters of PID controller
kpvalue be set to be less than the first preset value A, the time of integration
tivalue be set to be greater than the second preset value B.In the present embodiment, step 3.3) and 3.4) in regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler, specifically refer to the proportional gain in the controling parameters of PID controller
kpvalue be set to be greater than the first preset value A, the time of integration
tivalue be set to be less than the second preset value B.
In the present embodiment, step 3.2) in regulate the controling parameters of PID controller after, proportional gain
kpvalue be 0.7A, wherein A represents the first preset value; The time of integration
tivalue be 1.5B, wherein B represents the second preset value.Step 3.2) if in load deviation signal △
lbe greater than+5MW, main vapour pressure deviation signal △
pbe less than-0.1MPa two conditions to set up simultaneously, then known load instruction is greater than actual load, main vapour pressure is greater than main vapour pressure setting value, load up requires to increase fuel, and main vapour pressure high request subtracts fuel, contrary to the demand of fuel, now should make full use of boiler heat storage, weaken the regulating action of main vapour pressure PID controller to fuel, to feedover.The controling parameters of main vapour pressure PID controller is adjusted to: proportional gain
kp=0.7A, the time of integration
ti=1.5B, differential coefficient
kd=0.
In the present embodiment, step 3.3) in regulate the controling parameters of PID controller after, proportional gain
kpvalue be 1.2A, wherein A represents the first preset value; The time of integration
tivalue be 0.8B, wherein B represents the second preset value.Step 3.3) if in load deviation signal △
lbe greater than+5MW, main vapour pressure deviation signal △
pbe greater than+0.1MPa two conditions to set up, then known load instruction is greater than actual load, main vapour pressure is less than main vapour pressure setting value simultaneously.Load up requires to increase fuel, and the low requirement of main vapour pressure increases fuel, is identical to the demand of fuel.Now should increase more fuel, compensate the thermic load deviation that load raises and pressure is on the low side, the regulating action of main vapour pressure PID controller should be strengthened.The controling parameters of main vapour pressure PID controller is adjusted to: proportional gain
kp=1.2A, the time of integration
ti=0.8B, differential coefficient
kd=0.
In the present embodiment, step 3.4) in regulate the controling parameters of PID controller after, proportional gain
kpvalue be 1.2A, wherein A represents the first preset value; The time of integration
tivalue be 0.8B, wherein B represents the second preset value.Step 3.4) if in load deviation signal △
lbe less than-5MW, main vapour pressure deviation signal △
pbe less than-0.1MPa two conditions to set up, then known load instruction is less than actual load, and main vapour pressure is greater than main vapour pressure setting value simultaneously.Load down requires to reduce fuel, and main vapour pressure height also requires to reduce fuel, is identical to the demand of fuel.Now should reduce more fuel, reduce boiler heat load, the regulating action of main vapour pressure PID controller should be strengthened.The controling parameters of main vapour pressure PID controller is adjusted to: proportional gain
kp=1.2A, the time of integration
ti=0.8B, differential coefficient
kd=0.
In the present embodiment, step 3.5) in regulate the controling parameters of PID controller after, proportional gain
kpvalue be 0.7A, wherein A represents the first preset value; The time of integration
tivalue be 1.5B, wherein B represents the second preset value.Step 3.5) if in load deviation signal △
lbe less than-5MW, main vapour pressure deviation signal △
pbe greater than+0.1MPa two conditions to set up, then known load instruction is less than actual load, and main vapour pressure is less than main vapour pressure setting value simultaneously.Load down requires to reduce fuel, and the low requirement of main vapour pressure increases fuel, is contrary to the demand of fuel.Now should weaken the regulating action of main vapour pressure PID controller, to feedover.The controling parameters of main vapour pressure PID controller is adjusted to: proportional gain
kp=0.7A, the time of integration
ti=1.5B, differential coefficient
kd=0.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a thermal power generation unit main vapour pressure optimal control method, is characterized in that step comprises:
1) the main vapour pressure setting value of target thermal power generation unit is deducted main vapour pressure and obtain main vapour pressure deviation signal △
p;
2) load instruction of target thermal power generation unit is deducted actual load and obtain load deviation signal △
l;
3) according to load deviation signal △
ljudge the increase and decrease demand of target thermal power generation unit load deviation to fuel, according to main vapour pressure deviation signal △
pjudge that target thermal power generation unit main vapour pressure deviation is to the increase and decrease demand of fuel; According to target thermal power generation unit load deviation, the increase and decrease demand of fuel, main vapour pressure deviation are regulated to the controling parameters of PID controller to the increase and decrease demand of fuel, if load deviation is identical with the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, then regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler; If load deviation is different from the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, then regulate the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler;
4) by main vapour pressure deviation signal △
pinput described PID controller, described PID controller calculates PID arithmetic output quantity based on regulating the controling parameters obtained, and is regulated the fuel quantity entering boiler by described PID arithmetic output quantity.
2. thermal power generation unit main vapour pressure optimal control method according to claim 1, it is characterized in that, the detailed step of described step 3) comprises:
3.1) target thermal power generation unit load deviation signal △ is judged
lbetween-5MW ~+5MW, main vapour pressure deviation signal △
pbetween-0.1MPa ~+0.1MPa, whether two conditions meet simultaneously, if two conditions meet simultaneously, then judge that target thermal power generation unit is in steady state condition, arranges proportional gain in the controling parameters of PID controller
kpvalue be the first preset value A, the time of integration
tivalue be the second preset value B, differential coefficient
kdvalue be the 3rd preset value C, redirect perform step 4); Otherwise redirect performs next step;
3.2) load deviation signal △ is judged
lbe greater than+5MW, main vapour pressure deviation signal △
pbe less than-0.1MPa two conditions whether to set up simultaneously, if above-mentioned two conditions are set up simultaneously, then judge load deviation to the increase and decrease demand of fuel as increasing fuel, main vapour pressure deviation to the increase and decrease demand of fuel as reducing fuel, load deviation is different from the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, regulate the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler, redirect performs step 4); Otherwise redirect performs next step;
3.3) load deviation signal △ is judged
lbe greater than+5MW, main vapour pressure deviation signal △
pbe greater than+0.1MPa two conditions whether to set up simultaneously, if above-mentioned two conditions are set up simultaneously, then judge load deviation to the increase and decrease demand of fuel as increasing fuel, main vapour pressure deviation to the increase and decrease demand of fuel as increasing fuel, load deviation is identical with the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler, redirect execution step 4); Otherwise redirect performs next step;
3.4) load deviation signal △ is judged
lbe less than-5MW, main vapour pressure deviation signal △
pbe less than-0.1MPa two conditions whether to set up simultaneously, if above-mentioned two conditions are set up simultaneously, then judge load deviation to the increase and decrease demand of fuel as reducing fuel, main vapour pressure deviation to the increase and decrease demand of fuel as reducing fuel, load deviation is identical with the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler, redirect execution step 4); Otherwise redirect performs next step;
3.5) load deviation signal △ is judged
lbe less than-5MW, main vapour pressure deviation signal △
pbe greater than+0.1MPa two conditions whether to set up simultaneously, if above-mentioned two conditions are set up simultaneously, then judge load deviation to the increase and decrease demand of fuel as reducing fuel, main vapour pressure deviation to the increase and decrease demand of fuel as increasing fuel, load deviation is different from the increase and decrease demand of main vapour pressure deviation to fuel to the increase and decrease demand of fuel, regulates the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler; Finally, redirect performs step 4).
3. thermal power generation unit main vapour pressure optimal control method according to claim 2, it is characterized in that, described step 3.2) and 3.5) in regulate the controling parameters of PID controller to weaken PID controller to the regulating action of fuel quantity entering boiler, specifically refer to the proportional gain in the controling parameters of PID controller
kpvalue be set to be less than the first preset value A, the time of integration
tivalue be set to be greater than the second preset value B.
4. thermal power generation unit main vapour pressure optimal control method according to claim 2, it is characterized in that, described step 3.3) and 3.4) in regulate the controling parameters of PID controller to strengthen PID controller to the regulating action of fuel quantity entering boiler, specifically refer to the proportional gain in the controling parameters of PID controller
kpvalue be set to be greater than the first preset value A, the time of integration
tivalue be set to be less than the second preset value B.
5. thermal power generation unit main vapour pressure optimal control method according to claim 2, is characterized in that, described step 3.2) in regulate PID controller controling parameters after, proportional gain
kpvalue be 0.7A, wherein A represents the first preset value; The time of integration
tivalue be 1.5B, wherein B represents the second preset value.
6. thermal power generation unit main vapour pressure optimal control method according to claim 2, is characterized in that, described step 3.5) in regulate PID controller controling parameters after, proportional gain
kpvalue be 0.7A, wherein A represents the first preset value; The time of integration
tivalue be 1.5B, wherein B represents the second preset value.
7. thermal power generation unit main vapour pressure optimal control method according to claim 2, is characterized in that, described step 3.3) in regulate PID controller controling parameters after, proportional gain
kpvalue be 1.2A, wherein A represents the first preset value; The time of integration
tivalue be 0.8B, wherein B represents the second preset value.
8. thermal power generation unit main vapour pressure optimal control method according to claim 2, is characterized in that, described step 3.4) in regulate PID controller controling parameters after, proportional gain
kpvalue be 1.2A, wherein A represents the first preset value; The time of integration
tivalue be 0.8B, wherein B represents the second preset value.
9. according to the thermal power generation unit main vapour pressure optimal control method in claim 2 ~ 8 described in any one, it is characterized in that, the value of described 3rd preset value C is 0.
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| CN106329580A (en) * | 2016-09-05 | 2017-01-11 | 国家电网公司 | Automatic control method for load deviation of thermal generator set |
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| CN111639742A (en) * | 2020-05-22 | 2020-09-08 | 安徽科技学院 | System and method for diagnosing state fault of desulfurization and denitrification circulating pump |
| CN113110631A (en) * | 2021-03-29 | 2021-07-13 | 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 | Main steam pressure control method for thermal power plant |
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| CN113110631A (en) * | 2021-03-29 | 2021-07-13 | 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 | Main steam pressure control method for thermal power plant |
| CN113110631B (en) * | 2021-03-29 | 2023-10-24 | 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 | Main steam pressure control method for thermal power plant |
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