Control method, device and equipment of waste incineration waste heat boiler and medium

Abstract

The invention relates to the technical field of waste incineration. The invention discloses a control method, device, equipment and medium for a waste incineration waste heat boiler, and the method comprises the steps that main steam temperature deviation, a high-temperature superheater inlet flue gas temperature fluctuation value and a main steam temperature fluctuation value are obtained; the main steam temperature deviation, the high-temperature superheater inlet flue gas temperature fluctuation value and the main steam temperature fluctuation value serve as input variables of a fuzzy controller, and a corrected value of the high-temperature superheater inlet target steam temperature is obtained through the fuzzy controller; and the target steam temperature of the high-temperature superheater inlet is adjusted according to the corrected value of the target steam temperature of the high-temperature superheater inlet. The target steam temperature of the inlet of the high-temperature superheater is adjusted through the fuzzy controller, the limitation that a target value is obtained through manual giving or calculation according to an inherent formula is avoided, automatic quitting of a control system possibly caused is further avoided, the automation degree is high, the adjusting efficiency is high, and the economical efficiency, safety and effectiveness of the system are improved.

Description

Technical Field

[0001] The present application relates to the technical field of waste incineration, and in particular to a control method, device, equipment and medium for a waste incineration waste heat boiler. Background Art

[0002] The main steam temperature in the waste heat boiler refers to the temperature of the steam obtained at the outlet of the superheater after the saturated steam from the drum passes through various forms of superheaters in the boiler flue to exchange heat with the high-temperature flue gas. This temperature parameter is crucial to ensure the safety, efficiency and economy of power plant operation. Too high a temperature may cause excessive thermal stress on related equipment, leading to damage; too low a temperature will reduce thermal efficiency and increase the risk of wear of the last-stage blades of the turbine.

[0003] In waste incineration power plants, due to the instability of the calorific value of the waste entering the furnace, the control of the main steam temperature of the waste heat boiler is more complicated than in traditional coal-fired power plants. Existing control methods, such as PID regulation, have problems of lag and over-regulation. Especially when the operating conditions of the boiler change, the flue gas temperature fluctuation at the furnace outlet may cause drastic changes in the main steam temperature due to the influence of secondary air and induced draft. The target value of some PID control strategies needs to be given manually or calculated by inherent formulas. In the control system, once the deviation between the target value and the actual value exceeds the allowable range, it may cause the control system to automatically exit, requiring manual intervention by the operator. Summary of the invention

[0004] In view of the above situation, the embodiments of the present application provide a control method, device, equipment and medium for a waste incineration waste heat boiler, aiming to solve the above problems or at least partially solve the above problems.

[0005] In a first aspect, a control method for a waste incineration waste heat boiler is provided, comprising:

[0006] Obtain the main steam temperature deviation, high temperature superheater inlet flue gas temperature fluctuation value, and main steam temperature fluctuation value;

[0007] The main steam temperature deviation, the flue gas temperature fluctuation value at the high-temperature superheater inlet, and the main steam temperature fluctuation value are used as input variables of a fuzzy controller, and a correction value of the target steam temperature at the high-temperature superheater inlet is obtained through the fuzzy controller;

[0008] The target steam temperature at the high temperature superheater inlet is adjusted according to the correction value of the target steam temperature at the high temperature superheater inlet.

[0009] Preferably, the main steam temperature deviation, the high temperature superheater inlet flue gas temperature fluctuation value, and the main steam temperature fluctuation value are used as input values ​​of a fuzzy controller, and a correction value of the high temperature superheater inlet target steam temperature is obtained by the fuzzy controller, including:

[0010] Based on the membership function, calculate the first membership of the main steam temperature deviation to the main steam temperature deviation fuzzy set, the second membership of the high-temperature superheater inlet flue gas temperature fluctuation value to the high-temperature superheater inlet flue gas temperature fluctuation value fuzzy set, and the third membership of the main steam temperature fluctuation value to the main steam temperature fluctuation value fuzzy set;

[0011] According to the first membership degree, the second membership degree and the third membership degree, based on the membership vector value database of the preset fuzzy subset and the fuzzy control rule, fuzzy reasoning is performed to obtain the fuzzy set of the correction value of the high-temperature superheater inlet target steam temperature to which the correction value of the high-temperature superheater inlet target steam temperature belongs;

[0012] The centroid method is used to defuzzify the fuzzy set of the correction value of the target steam temperature at the high-temperature superheater inlet, so as to obtain the correction value of the target steam temperature at the high-temperature superheater inlet.

[0013] Preferably, adjusting the target steam temperature at the high temperature superheater inlet according to the correction value of the target steam temperature at the high temperature superheater inlet comprises:

[0014] Calculating the sum of the correction value of the high-temperature superheater inlet target steam temperature and the high-temperature superheater inlet target steam temperature to obtain the high-temperature superheater inlet target steam temperature adjustment value;

[0015] Based on a preset classification rule, determining an adjustment level according to the target steam temperature adjustment value at the high-temperature superheater inlet;

[0016] The target steam temperature at the high-temperature superheater inlet is adjusted according to the current adjustment level and the previous adjustment level.

[0017] Preferably, adjusting the target steam temperature at the high temperature superheater inlet according to the current adjustment level and the last adjustment level includes:

[0018] If the current adjustment level is the first adjustment category, obtain the last adjustment level and its adjustment duration. When the last adjustment duration has reached the predetermined duration, adjust the high-temperature superheater inlet target steam temperature according to the correction value of the high-temperature superheater inlet target steam temperature corresponding to the current adjustment level. When the last adjustment duration does not reach the predetermined duration, cancel the current adjustment until the last adjustment duration reaches the predetermined duration.

[0019] Preferably, adjusting the target steam temperature at the high temperature superheater inlet according to the current adjustment level and the last adjustment level also includes:

[0020] If the current adjustment level is the second adjustment category, the target steam temperature at the high temperature superheater inlet is adjusted according to the correction value of the target steam temperature at the high temperature superheater inlet corresponding to the current adjustment level.

[0021] Preferably, adjusting the target steam temperature at the high temperature superheater inlet according to the correction value of the target steam temperature at the high temperature superheater inlet comprises:

[0022] When the target steam temperature adjustment value at the high-temperature superheater inlet is within the target steam temperature preset range, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the upper limit value of the target steam temperature preset range is less than or equal to the first limit value, the target steam temperature at the medium-temperature superheater inlet is adjusted upward by the first preset value, and the target steam temperature at the high-temperature superheater inlet is adjusted to the upper limit value of the target steam temperature preset range;

[0023] When the target steam temperature adjustment value at the high-temperature superheater inlet is within the target steam temperature preset range, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the lower limit value of the target steam temperature preset range is less than or equal to the second limit value, the target steam temperature at the medium-temperature superheater inlet is adjusted downward by the second preset value, and the target steam temperature at the high-temperature superheater inlet is adjusted to the lower limit value of the target steam temperature preset range;

[0024] When the target steam temperature adjustment value at the high-temperature superheater inlet is within the preset range of the target steam temperature, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the upper limit value of the preset range of the target steam temperature is greater than the first limit value, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the lower limit value of the preset range of the target steam temperature is greater than the second limit value, the target steam temperature at the high-temperature superheater inlet is adjusted to the target steam temperature adjustment value at the high-temperature superheater inlet.

[0025] Preferably, the method further comprises:

[0026] Obtain the target value and actual value of the drum liquid level;

[0027] When the difference between the drum liquid level target value and the drum liquid level actual value is greater than or equal to a first difference, adjusting the drum liquid level target value toward the drum liquid level actual value by a first value;

[0028] When the difference between the drum liquid level target value and the drum liquid level actual value is smaller than the second difference value, the drum liquid level target value is adjusted by a second value in the direction of the preset liquid level reference value.

[0029] In a second aspect, a control device for a waste incineration waste heat boiler is provided, comprising:

[0030] An acquisition module is used to obtain the main steam temperature deviation, the high-temperature superheater inlet flue gas temperature fluctuation value, and the main steam temperature fluctuation value;

[0031] a calculation module, used for taking the main steam temperature deviation, the flue gas temperature fluctuation value at the high temperature superheater inlet, and the main steam temperature fluctuation value as input variables of a fuzzy controller, and obtaining a correction value of the target steam temperature at the high temperature superheater inlet through the fuzzy controller;

[0032] The adjustment module is used to adjust the target steam temperature at the high-temperature superheater inlet according to the correction value of the target steam temperature at the high-temperature superheater inlet.

[0033] In a third aspect, a computer device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the method for controlling the waste heat boiler of a waste incineration plant as described in the first aspect are implemented.

[0034] In a fourth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the control method of the waste incineration waste heat boiler as described in the first aspect are implemented.

[0035] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0036] The present application uses the main steam temperature deviation, the flue gas temperature fluctuation value at the high-temperature superheater inlet, and the main steam temperature fluctuation value as the input variables of the fuzzy controller, obtains the correction value of the target steam temperature at the high-temperature superheater inlet through the fuzzy controller, and adjusts the target steam temperature at the high-temperature superheater inlet according to the correction value of the target steam temperature at the high-temperature superheater inlet. By adjusting the target steam temperature at the high-temperature superheater inlet through the fuzzy controller, the limitation of the target value obtained by artificial setting or calculation through the inherent formula is avoided, and the automatic exit of the control system that may be caused is also avoided. The automation degree is high, the adjustment efficiency is high, and the economy, safety and effectiveness of the system are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0038] Figure 1 Schematic diagram of an application environment of a control method for a waste incineration waste heat boiler in one embodiment of the present invention;

[0039] Figure 2It is a flow chart of a control method of a waste incineration waste heat boiler in one embodiment of the present invention;

[0040] Figure 3 yes Figure 2 A schematic flow chart of a specific implementation of step S20;

[0041] Figure 4 yes Figure 2 A schematic flow chart of a specific implementation of step S30;

[0042] Figure 5 2 is a schematic structural diagram of a control device for a waste incineration waste heat boiler according to an embodiment of the present invention;

[0043] Figure 6 is a schematic diagram of a structure of a computer device in one embodiment of the present invention;

[0044] Figure 7 It is another structural schematic diagram of a computer device in one embodiment of the present invention. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such use is interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to".

[0047] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0048] As described above, the current high-temperature superheater inlet target steam temperature is manually set or calculated by an inherent formula, which may cause the control system to automatically exit, resulting in low automation and low regulation efficiency. In order to solve this technical problem, an embodiment of the present application provides a control method for a waste incineration waste heat boiler.

[0049] The control method of the waste incineration waste heat boiler provided in the embodiment of the present invention can be applied in the following aspects: Figure 1In an application environment, the device side communicates with the server side through a network. The server side can obtain the main steam temperature deviation, the high-temperature superheater inlet flue gas temperature fluctuation value, and the main steam temperature fluctuation value through the device side; the main steam temperature deviation, the high-temperature superheater inlet flue gas temperature fluctuation value, and the main steam temperature fluctuation value are used as input variables of the fuzzy controller, and the correction value of the high-temperature superheater inlet target steam temperature is obtained through the fuzzy controller; according to the correction value of the high-temperature superheater inlet target steam temperature, the high-temperature superheater inlet target steam temperature is adjusted. This application uses the main steam temperature deviation, the high-temperature superheater inlet flue gas temperature fluctuation value, and the main steam temperature fluctuation value as input variables of the fuzzy controller, and the correction value of the high-temperature superheater inlet target steam temperature is obtained through the fuzzy controller, and according to the correction value of the high-temperature superheater inlet target steam temperature, the high-temperature superheater inlet target steam temperature is adjusted. The target steam temperature at the high-temperature superheater inlet is adjusted by a fuzzy controller, avoiding the limitation of the target value given manually or calculated by an inherent formula, and also avoiding the automatic exit of the control system. It has a high degree of automation and high adjustment efficiency, and improves the economy, safety and effectiveness of the system.

[0050] The device side may be, but is not limited to, various sensors. The server side may be implemented by an independent server or a server cluster consisting of multiple servers. The present invention is described in detail below through specific embodiments.

[0051] See also Figure 2 As shown, Figure 2 A flow chart of a control method for a waste incineration waste heat boiler provided in an embodiment of the present invention includes the following steps:

[0052] S10: Obtain the main steam temperature deviation, the high temperature superheater inlet flue gas temperature fluctuation value, and the main steam temperature fluctuation value.

[0053] Specifically, the main steam temperature deviation is the difference between the main steam temperature and the main steam temperature reference value, and the main steam temperature reference value is predetermined according to the operation of the waste heat boiler. The main steam temperature deviation is selected as the fuzzy controller input to indicate the magnitude of the main steam temperature correction.

[0054] The flue gas temperature fluctuation value at the high-temperature superheater inlet is the difference in flue gas temperature near the superheater before and after one minute. Due to the characteristics of heat conduction, the flue gas temperature fluctuation value at the high-temperature superheater inlet represents the change of flue gas temperature, and the change of flue gas temperature will affect the main steam temperature fluctuation. The boiler is a typical nonlinear, slow-varying and complex thermal system. Due to the existence of large delays, the flue gas temperature will reverse its trend earlier than the main steam temperature. The current flue gas temperature fluctuation value can be used to predict the subsequent fluctuation of the main steam temperature.

[0055] The main steam temperature fluctuation value is the difference between the main steam temperatures before and after one minute. The main steam temperature fluctuation value represents the fluctuation of the main steam temperature. The main steam temperature fluctuation value is selected as the input of the fuzzy controller to represent the fluctuation of the main steam temperature at the high-temperature superheater inlet target steam temperature determined in the last adjustment to avoid overshoot.

[0056] S20: taking the main steam temperature deviation, the high-temperature superheater inlet flue gas temperature fluctuation value, and the main steam temperature fluctuation value as input variables of a fuzzy controller, and obtaining a correction value of the high-temperature superheater inlet target steam temperature through the fuzzy controller.

[0057] Specifically, fuzzy logic control (Fuzzy Logic Control) is referred to as fuzzy control (Fuzzy Control), which is a computer digital control technology based on fuzzy set theory, fuzzy language variables and fuzzy logic reasoning. Fuzzy control simplifies the complexity of system design and is particularly suitable for nonlinear, time-varying, and incomplete model systems.

[0058] Specifically, Figure 3 As shown, step S20 uses the main steam temperature deviation, the high temperature superheater inlet flue gas temperature fluctuation value, and the main steam temperature fluctuation value as input values ​​of a fuzzy controller, and obtains a correction value of the high temperature superheater inlet target steam temperature through the fuzzy controller, including:

[0059] S21: Based on the membership function, calculate the first membership of the main steam temperature deviation to the main steam temperature deviation fuzzy set, the second membership of the high-temperature superheater inlet flue gas temperature fluctuation value to the high-temperature superheater inlet flue gas temperature fluctuation value fuzzy set, and the third membership of the main steam temperature fluctuation value to the main steam temperature fluctuation value fuzzy set.

[0060] Further, the fuzzy controller includes a main steam temperature deviation fuzzy set, a high-temperature superheater inlet flue gas temperature fluctuation value fuzzy set, a main steam temperature fluctuation value fuzzy set, and a correction value fuzzy set of the high-temperature superheater inlet target steam temperature. The main steam temperature deviation fuzzy set, the high-temperature superheater inlet flue gas temperature fluctuation value fuzzy set, and the correction value fuzzy set of the high-temperature superheater inlet target steam temperature respectively include five fuzzy subsets, namely {NB, NS, OK, PS, PB}, wherein NB represents negative large, NM represents negative medium, NS represents negative small, OK represents moderate, PS represents positive small, and PB represents positive large. The main steam temperature fluctuation value fuzzy set includes three main steam temperature fluctuation value fuzzy subsets, namely {N, OK, P}, wherein N represents negative, OK represents moderate, and P represents positive.

[0061] Membership is a core concept in fuzzy set theory, which is used to indicate the degree to which an element belongs to a fuzzy set, and its value is between 0 and 1. In this embodiment, the first membership, the second membership, and the third membership are calculated by the membership function. The membership of the input variable to each fuzzy set is calculated by the membership function (the membership function is Gaussian). The finer the fuzzy set is divided, the more accurate the control is.

[0062] S22: According to the first membership, the second membership and the third membership, based on the pre-set membership vector value database of fuzzy subsets and fuzzy control rules, fuzzy reasoning is used to obtain the fuzzy set of the correction value of the high-temperature superheater inlet target steam temperature to which the correction value of the high-temperature superheater inlet target steam temperature belongs.

[0063] Specifically, the membership vector value database of the fuzzy subset and the fuzzy control rules are pre-set. The fuzzy control rules are set to perform logical reasoning on the divided fuzzy subsets, and based on the main steam temperature control needs, the fuzzy control rule table is determined, and the fuzzified input variables are logically reasoned according to the fuzzy control rule table to obtain the fuzzy output, that is, the fuzzy set of the correction value of the high-temperature superheater inlet target steam temperature to which the correction value of the high-temperature superheater inlet target steam temperature belongs, for example: If ((Md is NS) and (Gf is PS) and (Mf is OK)) then (Gt is OK), where Md is the main steam temperature deviation, Gf is the high-temperature superheater inlet flue gas temperature fluctuation value, Mf is the main steam temperature fluctuation value, and Gt is the correction value of the high-temperature superheater inlet target steam temperature.

[0064] S23: Defuzzifying the fuzzy set of the correction value of the target steam temperature at the high-temperature superheater inlet by using the centroid method to obtain the correction value of the target steam temperature at the high-temperature superheater inlet.

[0065] Specifically, the fuzzy output is mapped back to its corresponding actual output space through the proportional factor through defuzzification. The defuzzification methods include the maximum membership method, the weighted average method, the centroid method, etc. The centroid method is used in this application. The centroid method is to calculate the centroid of the fuzzy output from the calculated fuzzy set as the output value, that is, the correction value of the target steam temperature at the high-temperature superheater inlet.

[0066] S30: adjusting the target steam temperature at the high temperature superheater inlet according to the correction value of the target steam temperature at the high temperature superheater inlet.

[0067] Specifically, the output correction value of the high-temperature superheater inlet target steam temperature is superimposed on the original high-temperature superheater inlet target steam temperature to obtain the high-temperature superheater inlet target steam temperature adjustment value, and the high-temperature superheater inlet target steam temperature adjustment value is used as the adjustment value of the PID control to achieve automatic control. This application combines fuzzy control with PID control to achieve the constraint on the main steam temperature.

[0068] Specifically, Figure 4 As shown, step S30 adjusts the target steam temperature at the high temperature superheater inlet according to the correction value of the target steam temperature at the high temperature superheater inlet, including:

[0069] S31: Calculate the sum of the correction value of the high-temperature superheater inlet target steam temperature and the high-temperature superheater inlet target steam temperature to obtain the high-temperature superheater inlet target steam temperature adjustment value.

[0070] In this embodiment, the correction value of the high-temperature superheater inlet target steam temperature calculated currently is superimposed on the high-temperature superheater inlet target steam temperature determined by the last adjustment to obtain the high-temperature superheater inlet target steam temperature adjustment value. In one embodiment, the high-temperature superheater inlet target steam temperature adjustment value calculated replaces the high-temperature superheater inlet target steam temperature determined by the last adjustment, and the subsequent PID control is continued. In another embodiment, after the high-temperature superheater inlet target steam temperature adjustment value is calculated, it is necessary to confirm whether to replace the high-temperature superheater inlet target steam temperature determined by the last adjustment according to the assessed adjustment level.

[0071] S32: Based on a preset classification rule, an adjustment level is determined according to the target steam temperature adjustment value at the high-temperature superheater inlet.

[0072] Specifically, in another embodiment, according to the magnitude of the high-temperature superheater inlet target steam temperature adjustment value, the adjustment is graded according to the degree of urgency, and the higher the degree of urgency, the shorter the duration of each adjustment. The adjustment levels include level 1, level 2, and level 3, which are arranged from low to high according to the degree of urgency of the adjustment. Specifically, the specific number of levels of the adjustment level can be set according to the situation, such as being set to two levels, four levels, or five levels, etc.

[0073] S33: Adjust the target steam temperature at the high-temperature superheater inlet according to the current adjustment level and the last adjustment level.

[0074] Different adjustment levels correspond to different adjustment strategies. The fuzzy control algorithm calculates the target steam temperature adjustment value at the high-temperature superheater inlet once a minute. However, if the newly calculated target steam temperature adjustment value at the high-temperature superheater inlet is not the most urgent and the adjustment time required for the previous adjustment has not ended, the newly calculated target steam temperature adjustment value at the high-temperature superheater inlet will not cover the original adjustment value; if the newly calculated target steam temperature adjustment value at the high-temperature superheater inlet is the most urgent, the newly calculated target steam temperature adjustment value at the high-temperature superheater inlet will cover the original adjustment value and serve as the target of PID control.

[0075] Specifically, step S33 adjusts the target steam temperature at the high temperature superheater inlet according to the current adjustment level and the last adjustment level, including:

[0076] If the current adjustment level is the first adjustment category, obtain the last adjustment level and its adjustment duration. When the last adjustment duration has reached the predetermined duration, adjust the high-temperature superheater inlet target steam temperature according to the correction value of the high-temperature superheater inlet target steam temperature corresponding to the current adjustment level. When the last adjustment duration does not reach the predetermined duration, cancel the current adjustment until the last adjustment duration reaches the predetermined duration.

[0077] If the current adjustment level is the second adjustment category, the target steam temperature at the high temperature superheater inlet is adjusted according to the correction value of the target steam temperature at the high temperature superheater inlet corresponding to the current adjustment level.

[0078] The adjustment levels in the first adjustment category are adjustment levels with low urgency, and the adjustment levels in the second adjustment category are adjustment levels with high urgency. In this embodiment, the adjustment levels in the first adjustment category are level 1 and level 2, and the adjustment levels in the second adjustment category are level 3. Specifically, the adjustment levels in the first adjustment category and the adjustment levels in the second adjustment category can be set according to actual conditions. For example, when the adjustment levels are set to five levels, the adjustment levels in the first adjustment category are level 1, level 2, and level 3, and the adjustment levels in the second adjustment category are level 4 and level 5.

[0079] Specifically, when the adjustment level is level 1, the adjustment range is small, and the adjustment time corresponding to this adjustment level is 20 minutes; when the adjustment level is level 2, the adjustment range is large, and the adjustment time corresponding to this adjustment level is 10 minutes; when the adjustment level is level 3, the adjustment range is large, and the adjustment time corresponding to this adjustment level is 5 minutes. The fuzzy controller calculates the target steam temperature adjustment value at the high-temperature superheater inlet once a minute, but if the adjustment level of the newly calculated target steam temperature adjustment value at the high-temperature superheater inlet is less than level 3, and the adjustment time corresponding to the last adjustment level has not ended, the newly calculated target steam temperature adjustment value at the high-temperature superheater inlet does not cover the original adjustment value; if the adjustment level of the newly calculated target steam temperature adjustment value at the high-temperature superheater inlet is level 3, the newly calculated target steam temperature adjustment value at the high-temperature superheater inlet will cover the original adjustment value as the target of PID control. For example, if the last adjustment level is level 2, and the last adjustment of the target steam temperature at the high-temperature superheater inlet was 1 minute ago, the adjustment time corresponding to the last adjustment level is 10 minutes. Under this premise, if the current adjustment level newly calculated within the next 10 minutes is level 1 or level 2, since the last adjustment time of 10 minutes has not ended, the current adjustment will be canceled until the last adjustment time reaches the preset time of 10 minutes; if the current adjustment level newly calculated within the next 10 minutes is level 3, the current high-temperature superheater inlet target steam temperature adjustment value newly calculated will immediately cover the last high-temperature superheater inlet target steam temperature adjustment value, that is, the calculated correction value of the high-temperature superheater inlet target steam temperature will be superimposed on the last high-temperature superheater inlet target steam temperature adjustment value.

[0080] Furthermore, in order to avoid the continuous accumulation of the target steam temperature adjustment value at the high-temperature superheater inlet calculated according to the output of the fuzzy controller, which causes the target steam temperature at the high-temperature superheater inlet to exceed the normal operating range of the boiler, a preset range of the target steam temperature at the superheater inlet is set. The preset range of the target steam temperature includes the upper and lower limits of the target steam temperature. If the target steam temperature adjustment value at the high-temperature superheater inlet exceeds the upper and lower limits, PID control is input according to the upper and lower limits. At the same time, the target steam temperature at the medium-temperature superheater inlet is appropriately adjusted to avoid the main steam temperature being out of adjustment after the target steam temperature at the high-temperature superheater inlet reaches the limit.

[0081] Specifically, step S30 adjusts the target steam temperature at the high temperature superheater inlet according to the correction value of the target steam temperature at the high temperature superheater inlet, and further includes:

[0082] The first case: when the difference between the adjustment value of the target steam temperature at the high-temperature superheater inlet and the upper limit of the target steam temperature preset range is less than or equal to the first limit, the target steam temperature at the medium-temperature superheater inlet is adjusted upward by the first preset value, and the target steam temperature at the high-temperature superheater inlet is adjusted to the upper limit of the target steam temperature preset range;

[0083] The second case: when the difference between the adjusted value of the target steam temperature at the high-temperature superheater inlet and the lower limit of the preset range of the target steam temperature is less than or equal to the second limit, the target steam temperature at the medium-temperature superheater inlet is adjusted downward by the second preset value, and the target steam temperature at the high-temperature superheater inlet is adjusted to the lower limit of the preset range of the target steam temperature;

[0084] The third situation: when the target steam temperature adjustment value at the high-temperature superheater inlet is within the preset range of the target steam temperature, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the upper limit value of the preset range of the target steam temperature is greater than the first limit value, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the lower limit value of the preset range of the target steam temperature is greater than the second limit value, the target steam temperature at the high-temperature superheater inlet is adjusted to the target steam temperature adjustment value at the high-temperature superheater inlet.

[0085] Specifically, the target steam temperature preset range is a preset numerical range, which can be set according to specific needs. The upper limit of the target steam temperature preset range is Thr_max, the lower limit of the target steam temperature preset range is Thr_min, the target steam temperature at the high temperature superheater inlet is target_high_steam, the calculated target steam temperature adjustment value at the high temperature superheater inlet is used to replace and update target_high_steam, and the target steam temperature at the medium temperature superheater inlet is target_mid_steam. In the first case, the calculated target steam temperature adjustment value at the high temperature superheater inlet is close to the upper limit of the target steam temperature preset range, which may be higher than the upper limit or lower than the upper limit. The degree of closeness is represented by the first limit value, which may be a difference or a ratio. For example, when the first limit value is 10°C, that is, Thr_max-target_high_steam≥10°C, the target steam temperature target_high_steam at the high temperature superheater inlet is the upper limit of the target steam temperature preset range, which is Thr_max, and at the same time, the target steam temperature target_mid_steam at the medium temperature superheater inlet is adjusted upward by the first preset value of 5°C. In the second case, the calculated adjustment value of the target steam temperature at the inlet of the high-temperature superheater is close to the lower limit of the preset range of the target steam temperature, and may be higher or lower than the lower limit. The degree of closeness is represented by the second limit, which may be a difference or a ratio. For example, when the second limit is 10°C, that is, target_high_steam-Thr_min≥10°C, the target steam temperature target_high_steam at the inlet of the high-temperature superheater is the lower limit of the preset range of the target steam temperature, which is Thr_min. At the same time, the target steam temperature target_mid_steam at the inlet of the medium-temperature superheater is adjusted downward by the second preset value of 5°C. Further, the first limit and the second limit may be the same or different, and the first preset value and the second preset value may be the same or different. Further, after the first and second situations occur, when the recalculated high-temperature superheater inlet target steam temperature adjustment value no longer belongs to the first and second situations, the high-temperature superheater inlet target steam temperature adjustment value is within the target steam temperature preset range, and the difference between the high-temperature superheater inlet target steam temperature adjustment value and the upper limit value of the target steam temperature preset range is greater than the first limit value, and the difference between the high-temperature superheater inlet target steam temperature adjustment value and the lower limit value of the target steam temperature preset range is greater than the second limit value, it is necessary to gradually adjust the medium-temperature superheater inlet target steam temperature target_mid_steam back to its original level, for example, adjust 1°C to the level before adjustment in one minute.

[0086] The third situation is a normal situation, in which the target steam temperature at the high-temperature superheater inlet is adjusted to the target steam temperature adjustment value at the high-temperature superheater inlet, and does not involve adjustment of the target steam temperature at the medium-temperature superheater inlet.

[0087] Furthermore, since the monitoring and regulation of the drum liquid level is a key link to ensure the safe and efficient operation of the unit. If the drum liquid level is too low, the water may be vaporized rapidly. If it is not controlled in time, it may cause the boiler to burn dry or explode; while if the liquid level is too high, it will affect the steam-water separation efficiency, cause steam to carry liquid, and then cause scaling of the superheater tube wall, affect the superheated steam temperature, increase the heat transfer resistance, and cause the PID control system to automatically exit. Therefore, the present application also relates to the automatic control of the drum liquid level, and the method also includes: obtaining the drum liquid level target value and the drum liquid level actual value; when the difference between the drum liquid level target value and the drum liquid level actual value is greater than or equal to the first difference, adjusting the drum liquid level target value to the drum liquid level actual value by a first value; when the difference between the drum liquid level target value and the drum liquid level actual value is less than the second difference, adjusting the drum liquid level target value to the preset liquid level reference value by a second value.

[0088] Specifically, the drum liquid level target value is preset, or the drum liquid level target value is automatically determined according to the historical drum liquid level. The actual value of the drum liquid level is obtained in real time by the sensor device. The preset liquid level reference value is a preset value, and in this embodiment, the preset liquid level reference value is 0 mm.

[0089] Specifically, a difference greater than or equal to the first difference is used to indicate that there is a risk of automatic exit of the PID control system. The first value of the target value of the drum liquid level is adjusted toward the actual value of the drum liquid level to reduce the deviation between the two. A difference less than the second difference indicates that the difference between the target value of the drum liquid level and the actual value of the drum liquid level is very stable, and the target value of the drum liquid level can be adjusted toward the preset liquid level reference value by a second value. The first difference and the second difference can be average values ​​calculated by multiple sampling within a predetermined time period.

[0090] It can be seen that in the above scheme, the present application uses the main steam temperature deviation, the flue gas temperature fluctuation value at the high-temperature superheater inlet, and the main steam temperature fluctuation value as the input variables of the fuzzy controller, obtains the correction value of the target steam temperature at the high-temperature superheater inlet through the fuzzy controller, and adjusts the target steam temperature at the high-temperature superheater inlet according to the correction value of the target steam temperature at the high-temperature superheater inlet. By adjusting the target steam temperature at the high-temperature superheater inlet through the fuzzy controller, the limitation of the target value obtained by artificial setting or calculation through the inherent formula is avoided, and the automatic exit of the control system that may be caused is also avoided. The automation degree is high, the adjustment efficiency is high, and the economy, safety and effectiveness of the system are improved.

[0091] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0092] In one embodiment, a control device for a waste incineration waste heat boiler is provided, and the control device for the waste incineration waste heat boiler corresponds one-to-one to the control method for the waste incineration waste heat boiler in the above embodiment. Figure 5 As shown, the control device of the waste incineration waste heat boiler includes an acquisition module 101, a calculation module 102, and an adjustment module 103. The detailed description of each functional module is as follows:

[0093] An acquisition module 101 is used to acquire a main steam temperature deviation, a high-temperature superheater inlet flue gas temperature fluctuation value, and a main steam temperature fluctuation value;

[0094] A calculation module 102, used to use the main steam temperature deviation, the flue gas temperature fluctuation value at the high temperature superheater inlet, and the main steam temperature fluctuation value as input variables of a fuzzy controller, and obtain a correction value of the target steam temperature at the high temperature superheater inlet through the fuzzy controller;

[0095] The adjustment module 103 is used to adjust the target steam temperature at the high temperature superheater inlet according to the correction value of the target steam temperature at the high temperature superheater inlet.

[0096] Specifically, the calculation module 102 is further used to:

[0097] Based on the membership function, calculate the first membership of the main steam temperature deviation to the main steam temperature deviation fuzzy set, the second membership of the high-temperature superheater inlet flue gas temperature fluctuation value to the high-temperature superheater inlet flue gas temperature fluctuation value fuzzy set, and the third membership of the main steam temperature fluctuation value to the main steam temperature fluctuation value fuzzy set;

[0098] According to the first membership degree, the second membership degree and the third membership degree, based on the membership vector value database of the preset fuzzy subset and the fuzzy control rule, fuzzy reasoning is performed to obtain the fuzzy set of the correction value of the high-temperature superheater inlet target steam temperature to which the correction value of the high-temperature superheater inlet target steam temperature belongs;

[0099] The centroid method is used to defuzzify the fuzzy set of the correction value of the target steam temperature at the high-temperature superheater inlet, so as to obtain the correction value of the target steam temperature at the high-temperature superheater inlet.

[0100] Specifically, the adjustment module 103 is further used to:

[0101] Calculating the sum of the correction value of the high-temperature superheater inlet target steam temperature and the high-temperature superheater inlet target steam temperature to obtain the high-temperature superheater inlet target steam temperature adjustment value;

[0102] Based on a preset classification rule, determining an adjustment level according to the target steam temperature adjustment value at the high-temperature superheater inlet;

[0103] The target steam temperature at the high-temperature superheater inlet is adjusted according to the current adjustment level and the previous adjustment level.

[0104] Specifically, the adjustment module 103 is further used to:

[0105] If the current adjustment level is the first adjustment category, obtain the last adjustment level and its adjustment duration. When the last adjustment duration has reached the predetermined duration, adjust the high-temperature superheater inlet target steam temperature according to the correction value of the high-temperature superheater inlet target steam temperature corresponding to the current adjustment level. When the last adjustment duration does not reach the predetermined duration, cancel the current adjustment until the last adjustment duration reaches the predetermined duration.

[0106] Specifically, the adjustment module 103 is further used to:

[0107] If the current adjustment level is the second adjustment category, the target steam temperature at the high temperature superheater inlet is adjusted according to the correction value of the target steam temperature at the high temperature superheater inlet corresponding to the current adjustment level.

[0108] Specifically, the adjustment module 103 is further used to:

[0109] When the target steam temperature adjustment value at the high-temperature superheater inlet is within the target steam temperature preset range, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the upper limit value of the target steam temperature preset range is less than or equal to the first limit value, the target steam temperature at the medium-temperature superheater inlet is adjusted upward by the first preset value, and the target steam temperature at the high-temperature superheater inlet is adjusted to the upper limit value of the target steam temperature preset range;

[0110] When the target steam temperature adjustment value at the high-temperature superheater inlet is within the target steam temperature preset range, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the lower limit value of the target steam temperature preset range is less than or equal to the second limit value, the target steam temperature at the medium-temperature superheater inlet is adjusted downward by the second preset value, and the target steam temperature at the high-temperature superheater inlet is adjusted to the lower limit value of the target steam temperature preset range;

[0111] When the target steam temperature adjustment value at the high-temperature superheater inlet is within the preset range of the target steam temperature, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the upper limit value of the preset range of the target steam temperature is greater than the first limit value, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the lower limit value of the preset range of the target steam temperature is greater than the second limit value, the target steam temperature at the high-temperature superheater inlet is adjusted to the target steam temperature adjustment value at the high-temperature superheater inlet.

[0112] Specifically, the acquisition module 101 is further used to:

[0113] Get the drum liquid level target value and the drum liquid level actual value.

[0114] Specifically, the calculation module 102 is further used to:

[0115] Calculate the difference between the drum liquid level target value and the drum liquid level actual value.

[0116] Specifically, the adjustment module 103 is further used to:

[0117] When the difference between the drum liquid level target value and the drum liquid level actual value is greater than or equal to a first difference, adjusting the drum liquid level target value toward the drum liquid level actual value by a first value;

[0118] When the difference between the drum liquid level target value and the drum liquid level actual value is smaller than the second difference value, the drum liquid level target value is adjusted by a second value in the direction of the preset liquid level reference value.

[0119] The present application uses the main steam temperature deviation, the flue gas temperature fluctuation value at the high-temperature superheater inlet, and the main steam temperature fluctuation value as the input variables of the fuzzy controller, obtains the correction value of the target steam temperature at the high-temperature superheater inlet through the fuzzy controller, and adjusts the target steam temperature at the high-temperature superheater inlet according to the correction value of the target steam temperature at the high-temperature superheater inlet. By adjusting the target steam temperature at the high-temperature superheater inlet through the fuzzy controller, the limitation of the target value obtained by artificial setting or calculation through the inherent formula is avoided, and the automatic exit of the control system that may be caused is also avoided. The automation degree is high, the adjustment efficiency is high, and the economy, safety and effectiveness of the system are improved.

[0120] The specific definition of the control device of the waste incineration waste heat boiler can be found in the definition of the control method of the waste incineration waste heat boiler mentioned above, which will not be repeated here. Each module in the above-mentioned control device of the waste incineration waste heat boiler can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0121] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 6 As shown. The computer device includes a processor, a memory, a network interface and a database connected via a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile and / or volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with an external device end through a network connection. When the computer program is executed by the processor, it realizes the functions or steps of a service end side of a control method for a waste incineration waste heat boiler.

[0122] In one embodiment, a computer device is provided. The computer device may be a device end, and its internal structure diagram may be as follows: Figure 7 As shown. The computer device includes a processor, a memory, a network interface, a display screen and an input device connected via a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with an external server via a network connection. When the computer program is executed by the processor, the functions or steps of a device end side of a control method for a waste incineration waste heat boiler are realized.

[0123] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the following steps when executing the computer program:

[0124] Obtain the main steam temperature deviation, high temperature superheater inlet flue gas temperature fluctuation value, and main steam temperature fluctuation value;

[0125] The main steam temperature deviation, the flue gas temperature fluctuation value at the high-temperature superheater inlet, and the main steam temperature fluctuation value are used as input variables of a fuzzy controller, and a correction value of the target steam temperature at the high-temperature superheater inlet is obtained through the fuzzy controller;

[0126] The target steam temperature at the high temperature superheater inlet is adjusted according to the correction value of the target steam temperature at the high temperature superheater inlet.

[0127] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0128] Obtain the main steam temperature deviation, high temperature superheater inlet flue gas temperature fluctuation value, and main steam temperature fluctuation value;

[0129] The main steam temperature deviation, the flue gas temperature fluctuation value at the high-temperature superheater inlet, and the main steam temperature fluctuation value are used as input variables of a fuzzy controller, and a correction value of the target steam temperature at the high-temperature superheater inlet is obtained through the fuzzy controller;

[0130] The target steam temperature at the high temperature superheater inlet is adjusted according to the correction value of the target steam temperature at the high temperature superheater inlet.

[0131] It should be noted that the above functions or steps that can be implemented by the computer-readable storage medium or computer device can refer to the relevant descriptions on the server side and the device side in the aforementioned method embodiment. To avoid repetition, they will not be described one by one here.

[0132] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0133] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0134] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A control method for a waste incineration waste heat boiler, characterized in that: include: Obtain the main steam temperature deviation, high temperature superheater inlet flue gas temperature fluctuation value, and main steam temperature fluctuation value; The main steam temperature deviation, the flue gas temperature fluctuation value at the high-temperature superheater inlet, and the main steam temperature fluctuation value are used as input variables of a fuzzy controller, and a correction value of the target steam temperature at the high-temperature superheater inlet is obtained through the fuzzy controller; The target steam temperature at the high temperature superheater inlet is adjusted according to the correction value of the target steam temperature at the high temperature superheater inlet.

2. The method according to claim 1, characterized in that The main steam temperature deviation, the flue gas temperature fluctuation value at the high temperature superheater inlet, and the main steam temperature fluctuation value are used as input values ​​of a fuzzy controller, and a correction value of a target steam temperature at the high temperature superheater inlet is obtained by the fuzzy controller, including: Based on the membership function, calculate the first membership of the main steam temperature deviation to the main steam temperature deviation fuzzy set, the second membership of the high-temperature superheater inlet flue gas temperature fluctuation value to the high-temperature superheater inlet flue gas temperature fluctuation value fuzzy set, and the third membership of the main steam temperature fluctuation value to the main steam temperature fluctuation value fuzzy set; According to the first membership degree, the second membership degree and the third membership degree, based on the membership vector value database of the preset fuzzy subset and the fuzzy control rule, fuzzy reasoning is performed to obtain the fuzzy set of the correction value of the high-temperature superheater inlet target steam temperature to which the correction value of the high-temperature superheater inlet target steam temperature belongs; The centroid method is used to defuzzify the fuzzy set of the correction value of the target steam temperature at the high-temperature superheater inlet, so as to obtain the correction value of the target steam temperature at the high-temperature superheater inlet.

3. The method according to claim 1, characterized in that According to the correction value of the high-temperature superheater inlet target steam temperature, the high-temperature superheater inlet target steam temperature is adjusted, including: Calculating the sum of the correction value of the high-temperature superheater inlet target steam temperature and the high-temperature superheater inlet target steam temperature to obtain the high-temperature superheater inlet target steam temperature adjustment value; Based on a preset classification rule, determining an adjustment level according to the high-temperature superheater inlet target steam temperature adjustment value; The target steam temperature at the high-temperature superheater inlet is adjusted according to the current adjustment level and the previous adjustment level.

4. The method according to claim 1, characterized in that: According to the current adjustment level and the last adjustment level, the target steam temperature at the high temperature superheater inlet is adjusted, including: If the current adjustment level is the first adjustment category, obtain the last adjustment level and its adjustment duration. When the last adjustment duration has reached the predetermined duration, adjust the high-temperature superheater inlet target steam temperature according to the correction value of the high-temperature superheater inlet target steam temperature corresponding to the current adjustment level. When the last adjustment duration does not reach the predetermined duration, cancel the current adjustment until the last adjustment duration reaches the predetermined duration.

5. The method according to claim 1, characterized in that According to the current adjustment level and the last adjustment level, the target steam temperature at the high temperature superheater inlet is adjusted, including: If the current adjustment level is the second adjustment category, the target steam temperature at the high temperature superheater inlet is adjusted according to the correction value of the target steam temperature at the high temperature superheater inlet corresponding to the current adjustment level.

6. The method according to claim 1, characterized in that According to the correction value of the high-temperature superheater inlet target steam temperature, the high-temperature superheater inlet target steam temperature is adjusted, including: When the target steam temperature adjustment value at the high-temperature superheater inlet is within the target steam temperature preset range, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the upper limit value of the target steam temperature preset range is less than or equal to the first limit value, the target steam temperature at the medium-temperature superheater inlet is adjusted upward by the first preset value, and the target steam temperature at the high-temperature superheater inlet is adjusted to the upper limit value of the target steam temperature preset range; When the target steam temperature adjustment value at the high-temperature superheater inlet is within the target steam temperature preset range, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the lower limit value of the target steam temperature preset range is less than or equal to the second limit value, the target steam temperature at the medium-temperature superheater inlet is adjusted downward by the second preset value, and the target steam temperature at the high-temperature superheater inlet is adjusted to the lower limit value of the target steam temperature preset range; When the target steam temperature adjustment value at the high-temperature superheater inlet is within the preset range of the target steam temperature, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the upper limit value of the preset range of the target steam temperature is greater than the first limit value, and the difference between the target steam temperature adjustment value at the high-temperature superheater inlet and the lower limit value of the preset range of the target steam temperature is greater than the second limit value, the target steam temperature at the high-temperature superheater inlet is adjusted to the target steam temperature adjustment value at the high-temperature superheater inlet.

7. The method according to claim 1, characterized in that The method further comprises: Obtain the target value and actual value of the drum liquid level; When the difference between the drum liquid level target value and the drum liquid level actual value is greater than or equal to a first difference, adjusting the drum liquid level target value toward the drum liquid level actual value by a first value; When the difference between the drum liquid level target value and the drum liquid level actual value is smaller than the second difference value, the drum liquid level target value is adjusted by a second value in the direction of the preset liquid level reference value.

8. A control device for a waste incineration waste heat boiler, characterized in that: include: An acquisition module is used to obtain the main steam temperature deviation, the high-temperature superheater inlet flue gas temperature fluctuation value, and the main steam temperature fluctuation value; a calculation module, used for taking the main steam temperature deviation, the flue gas temperature fluctuation value at the high temperature superheater inlet, and the main steam temperature fluctuation value as input variables of a fuzzy controller, and obtaining a correction value of the target steam temperature at the high temperature superheater inlet through the fuzzy controller; The adjustment module is used to adjust the target steam temperature at the high-temperature superheater inlet according to the correction value of the target steam temperature at the high-temperature superheater inlet.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the control method of the waste incineration waste heat boiler as claimed in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for controlling a waste incineration waste heat boiler as claimed in any one of claims 1 to 7 are implemented.

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