2009results about "Boiler control" patented technology

In an intelligent pollution and carbon reduction method based on combustion control and load distribution, a data processing layer, a multi-unit load distribution and operation optimization layer and a single-unit boiler multi-objective combustion optimization layer are used. The data processing layer, the multi-unit load distribution and operation optimization layer and the single-unit boiler multi-objective combustion optimization layer are embedded in a power plant information system in the form of modules. A load distribution and operation optimization method for a multi-source fuel blending combustion unit with economy as an objective is provided to overcome the operation optimization difficulty of the key production process of a multi-source fuel blending combustion cogeneration unit, such as sludge drying-steam distribution.

The invention provides a multi-target combustion optimization method based on economic predictive control, and aims to solve the problems that the power generation load and the in-furnace coal quality are frequently changed, conventional DCS control has defects in the aspects of air quantity and oxygen quantity optimization, boiler efficiency balancing, NOx emission, steam temperature control and the like, part of boiler parameters are difficult to accurately measure, and the existing combustion optimization technology is limited in applicability. The method comprises the following steps: collecting and preprocessing historical operation data, classifying and screening according to steady-state working conditions, and constructing a correlation model to perform preliminary combustion optimization; a load and coal quality change prediction model and a combustion process dynamic relation model are established according to unit characteristics and historical data; then, in the online secondary optimization stage, an initial parameter combination is selected according to the current state and the prediction state, and the combustion parameter adjustment amount meeting the multiple constraints is calculated through an economic prediction control algorithm and applied and corrected. Experiments show that the method can improve the boiler efficiency, reduce NOx emission, optimize steam temperature control, relieve the labor intensity of personnel and effectively improve the combustion performance.

The invention provides a power plant steam extraction energy storage and power generation optimization method and system based on fused salt heat storage, and relates to the technical field of electric power. The extracted steam is introduced into a multi-stage tandem type steam-molten salt heat exchanger group; when the load of the power grid is higher than a preset dynamic threshold value, conveying the high-temperature fused salt to the cascade fused salt-water heat exchanger group by adopting a multi-path parallel fused salt conveying system; in the fused salt-water heat exchanger group, a structure of combining countercurrent flow heat exchange and a spiral heat exchange pipe is adopted, so that the heat exchange efficiency is improved, and superheated steam is generated; the generated high-temperature and high-pressure steam is conveyed to the improved steam turbine with the variable air inlet area, the air inlet area is dynamically adjusted according to the power grid load requirement, and the efficiency of the steam turbine is optimized; the intelligent power grid technology and the demand side response strategy are utilized to realize bidirectional interaction between the power generation end and the power utilization end, and power supply and demand are dynamically balanced.

The invention relates to the field of industrial automation and equipment maintenance, and discloses a boiler operation state real-time monitoring and regular safety inspection method, which comprises the following steps: acquiring key parameters of an industrial boiler operation state in real time through a plurality of sensors, including pressure, temperature, water level and combustion condition; and transmitting data collected by the sensor to a data processing platform, wherein the data processing platform integrates a big data analysis module, an artificial intelligence algorithm module and a historical data comparison module. Through a linkage mechanism of the data processing platform and the industrial boiler control system, operation parameters can be automatically adjusted; necessary safety measures are prompted to be taken through continuous on-line monitoring and alarming of boiler load and water quality. An artificial intelligence algorithm is introduced, dynamic maintenance cycle adjustment is realized, unnecessary maintenance is reduced, and the maintenance cost is reduced; the remote monitoring and control system supports real-time monitoring and remote control, and improves the flexibility of operation and maintenance and the fault response speed.

The invention provides a cooking utensil superheated steam system and a temperature control method thereof, and relates to the technical field of steam cooking. The superheated steam system of the cooking utensil comprises the cooking utensil, a steam module, an ultrasonic heating module, a temperature monitoring module, a cooking data acquisition module, a data analysis module, a model prediction module, a display module, a dynamic adjustment heating strategy, a waste heat recovery module and a preheating box. Ultrasonic vibration is used for assisting heating, water molecules rapidly vibrate in a microwave field to generate heat, the waste heat recovery module captures heat generated in the cooking process through a heat exchanger and is used for preheating the next batch of food, the energy utilization efficiency is remarkably improved, energy waste and carbon emission are reduced, the heating strategy is dynamically adjusted, and the energy utilization rate is increased. According to the real-time sensor data and the prediction model, the heating power, the steam flow and the heating time parameters are automatically optimized, unnecessary energy consumption is avoided, and accurate temperature control and energy consumption optimization are achieved.

The invention discloses a digital twinning-based thermal heat supply system defense cooperative protection method and system, particularly relates to the technical field of industrial control system safety, and is used for solving the problems of hidden attack missing detection and response delay caused by splitting of energy flow and data flow in an existing protection mechanism. Physical-network behavior collaborative verification is realized by constructing a digital twinborn model, and precise protection is realized by quantifying coupling failure characteristics of energy flow and instruction flow. The method specifically comprises the following steps: collecting production data, industrial control logs and network traffic; constructing a digital twin model to simulate expected behaviors of equipment, communication and physical states; comparing and detecting abnormal data in real time; extracting a thermodynamic potential gradient characteristic quantity and a path integral characteristic quantity from the abnormal data; calculating a covariant difference value of the two characteristic quantities, and judging an external attack when the covariant difference value exceeds a threshold value; when an attack is triggered, a micro-isolation gateway is deployed, dynamic access control is implemented based on an equipment fingerprint, a user behavior sequence and an environment fingerprint, and an attack chain is blocked.

The invention provides a boiler master control system, a pressure adjusting method, electronic equipment and a storage medium. The system comprises a signal acquisition module, a differential control module, a pressure deviation adjusting loop and an instruction dynamic compensation loop. Compared with the prior art, according to the embodiment of the invention, the differential action intensity is calculated by utilizing the load change signal, the control valve action signal and the main steam pressure signal, so that the first coal quantity adjustment signal is accurately generated. Load change and pressure fluctuation can be responded in time, it is ensured that the coal quantity is adjusted more accurately, and boiler efficiency fluctuation or fuel waste caused by too much or too little coal quantity is avoided. The pressure deviation adjusting loop performs adjustment based on the deviation of the main steam pressure signal, so that the stability of coal quantity control is further improved; the instruction dynamic compensation loop can effectively predict and adjust the coal quantity according to the dynamic change of the boiler load, the parameters of the unit heat energy storage and the boiler capacity input rate so as to adapt to the dynamic change of the boiler load and capacity.

The invention discloses a method for preventing main steam pressure fluctuation on the basis of controlling the coal combustion amount. The method comprises the following steps: acquiring running state data of the coal-fired boiler in real time; based on the operation state data and a preset boiler dynamic prediction model, predicting a steam pressure sequence of the boiler in a future preset time range, and judging whether to trigger a control action or not in combination with an event triggering strategy obtained by learning of a reinforcement learning agent; if it is judged that the control action is triggered, the reinforcement learning agent outputs an adjustment instruction of the total coal feeding amount according to the current operation state data; and controlling the total coal feeding amount of the boiler according to the adjusting instruction. According to the method, the timing and the force of control intervention can be intelligently determined according to the real-time state and future trend prediction of the boiler, and the accuracy and the foresight of main steam pressure control are improved.

The invention discloses an energy storage-heat pump linkage heat, power and cold collaborative peak regulation system and an operation method. The system comprises a combined heat and power generation unit, an evaporator, a condenser, a compressor, wind power and photovoltaic power generation equipment, an electric power controller, a cross-seasonal energy storage chamber and the like. Surplus electric quantity of a power grid is consumed through a heat pump and converted into heat energy and cold energy in a power off-peak period, and part of condensed water of a steam turbine is heated through heat storage in a power peak period to improve the power output of a unit; the unit heats heating return water through heat storage release and steam turbine steam extraction in a cascade mode in winter, electric heating peak regulation is achieved, external cooling and electric cooling peak regulation are achieved through electric cooling conversion and cold energy release in summer, and cross-seasonal energy storage and peak regulation are achieved through electric heating and cold conversion in spring and autumn. Power storage is replaced by cold storage and heat storage, peak regulation is promoted through heat supply and cold supply, and the new energy power consumption level can be greatly improved.

A molten salt heating direct-flow type wet saturated steam generation system, comprising an evaporation device, a molten salt conveying device, a preheating device, a softened water conveying device, and a dryness adjustment device. The evaporation device is provided with a first heat exchange pipeline and a second heat exchange pipeline; the molten salt conveying device comprises a molten salt conveying apparatus and a molten salt recovery apparatus; the preheating device is provided with a first preheating pipeline, and an outlet of the second heat exchange pipeline is connected to a steam output pipeline; and the dryness adjustment device comprises an adjustment member and a dryness measurement apparatus. According to the steam generation system provided by the present invention, the temperature of softened water and the temperature of molten salt can be adjusted to appropriate ranges, avoiding the crystallization of the molten salt; moreover, the dryness of wet saturated steam can be controlled by means of coarse adjustment and fine adjustment, and the direct-flow type evaporation device is suitable for softened water having poor quality so as to meet the steam injection requirements of oil fields.

The invention provides a combustion optimization method and system for a coal-fired boiler, electronic equipment and a storage medium. The combustion optimization method for the coal-fired boiler comprises the steps that historical operation data and operation condition data of the boiler are obtained; determining the combustion efficiency of the boiler according to the historical operation data of the boiler; working condition division is carried out according to the boiler combustion efficiency and the operation working condition data, and information of all working condition intervals is obtained; constructing a combustion efficiency prediction model driven by time series data according to the information of each working condition interval; the combustion efficiency prediction model is embedded into a deep reinforcement learning method framework for training, and an optimization model is generated; and inputting real-time operation data of the boiler into the optimization model to generate optimization decision data.

The invention discloses a two-phase cold plate liquid cooling ORC waste heat recovery and photovoltaic cooperative energy supply system and method, and relates to the technical field of energy management and waste heat utilization. The two-phase cold plate liquid cooling ORC waste heat recovery and photovoltaic cooperative energy supply system and method comprises the following steps that S1, thermal parameters and electric power states related to cooperative energy supply are collected, and a thermoelectric cooperative input data set is constructed and preprocessed; s2, the supply and demand difference of the high-temperature steam in the main condensation branch and the ORC branch is recognized; s3, coordinating a photovoltaic power supply structure and a cooperative energy supply sequence, and judging the matching degree of cooperative energy supply to a load; and S4, evaluating a cooling, heating and power cooperation and double-source coupling state in combination with a load matching condition and an output behavior. The problems that in an existing two-phase cold plate liquid cooling structure, high-temperature steam is not recycled, photovoltaic power generation does not participate in linkage energy supply, the power source is single, waste heat waste is serious, and energy collaboration is insufficient are solved.

The invention discloses a thermal power generating unit operation state detection method and system, and relates to the technical field of operation state detection, and the method comprises the steps: S100, building a working condition variable label; s200, carrying out statistics on correlation coefficients of sensors and faults under various working conditions in historical operation data of the thermal power generating unit, dynamically updating weights, and storing the weights in a working condition database; s300, based on the energy transfer chain of the thermal power generating unit, establishing a parameter incidence matrix between devices; according to the method, the data weights of different sensors are adaptively adjusted according to the real-time operation state of the equipment, the defect that the traditional multi-sensor fusion adopts fixed weight or simple weighted average and is difficult to adapt to the working condition change is overcome, a physical relationship network between the equipment is constructed, key associated parameters are identified in an energy transfer form, and the fault identification accuracy is improved. The robustness of anomaly monitoring under complex working conditions is improved, and the false alarm rate is reduced.

The invention relates to the technical field of boiler control, and discloses a gas-fired boiler starting control method and system. The method comprises the following steps: acquiring initial operation parameters such as hearth pressure, water inlet temperature, flue gas oxygen content and fuel valve opening of the gas-fired boiler, establishing a thermodynamic state model in a starting stage according to the initial operation parameters, and dividing dynamic response thresholds of different load intervals; and calculating a theoretical fuel supply rate of the combustor based on the model, generating and dynamically updating a fuel supply correction coefficient in combination with a threshold value, synchronously marking key nodes according to abnormal distribution of hearth temperature, and adjusting a spatial air distribution strategy of the combustor. And after the correction coefficient is subjected to multi-stage buffer smoothing, a fuel control instruction is output to an executing mechanism. And switching to steady state control after the boiler reaches the preset load. The method adapts to the characteristics of a power plant unit, so that the starting process is more stable, the damage to a heated surface and pollutant emission are reduced, and rapid grid connection is assisted.

An energy storage system (TES) converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. The delivered heat which may be used for processes including power generation and cogeneration. In one application, there are thermal energy storage units that provide existing power plants with greater system efficiency, safety, and reduced fuel consumption.

The invention discloses a thermal power plant boiler combustion optimization method and system, and the method comprises the steps: obtaining historical combustion data and historical control data of a thermal power plant boiler, and carrying out the analysis to determine control parameters affecting the combustion; extracting features of the control parameters, and constructing a combustion data prediction model based on the features and a preset neural network model for prediction to obtain combustion prediction data; analyzing the combustion prediction data, determining combustion data characteristics, and determining a combustion state coefficient of the thermal power plant boiler based on the combustion data characteristics; an expected combustion state coefficient preset in advance by the thermal power plant boiler is obtained, and the difference value between the combustion state coefficient and the expected combustion state coefficient is determined; and determining a parameter control optimization coefficient according to the difference value to optimize the current control parameter. According to the invention, refined and intelligent monitoring and optimal control of the combustion process can be realized, so that the combustion efficiency of the thermal power plant boiler is improved, the cost is reduced, the emission is reduced, and the stability and the safety of boiler operation are improved.

Apparatus comprising an energy cell and controller is disclosed. The energy cell is configured to apply electrical energy to liquid in the cell to generate bubbles of plasma which heat the liquid. A c

The invention discloses a thermal power generating unit high-pressure heater fault load reduction control method, which comprises the following steps of: 1, judging whether a thermal power generating unit generates high-pressure heater fault splitting or not, and if so, entering a step 2; 2, judging whether a triggering condition of a unit load reduction program is met or not, if yes, sending a unit rapid load reduction instruction, and entering a step 3; 4, whether the auxiliary machine fault load reduction program is completed or not is judged, if the auxiliary machine fault load reduction program is completed, the unit enters a stable transition state, and if the auxiliary machine fault load reduction program is completed, the third step is executed again. The method is reasonable in design, key actions of thermal power generating unit high-pressure heater auxiliary machine fault load reduction are defined and set in control logic, automatic control of the thermal power generating unit high-pressure heater auxiliary machine fault load reduction process has practical operability, intelligent control of the load reduction process is achieved, and the reliability of the load reduction process is improved. And the stability and the safety of the thermal power generating unit after the high-pressure heater is split are ensured.

Systems and methods for generating electrical power in an organic Rankine cycle (ORC) operation include one or more heat exchangers incorporated into mobile heat generation units, and which will receive a heated fluid flow from one or more heat sources, and transfer heat therefrom to a working fluid that is circulated through an ORC unit for generation of power. In embodiments, the mobile heat generation units comprise pre-packaged modules with one or more heat exchangers connected to a pump of a recirculation system, including an array of piping, such that each mobile heat generation unit can be transported to the site and installed as a substantially stand-alone module or heat generation assembly.

The invention discloses a high-temperature steam sterilizer, which relates to the technical field of sterilization equipment, and has the technical key points that the high-temperature steam sterilizer comprises a base and a tank body fixedly mounted on the base, a steam generation mechanism is arranged at the top of the base, a steam distribution mechanism is arranged in an inner cavity of the tank body, and a sealed storage mechanism is arranged at the top of the tank body; the steam distribution mechanism comprises a preheating assembly and a steam equipartition assembly, and the preheating assembly comprises a heat conduction cylinder fixedly installed at the bottom of an inner cavity of the tank body. The problem of local sterilization failure caused by non-uniform steam distribution of a traditional sterilizer is solved, agricultural products are rapidly penetrated through by increasing the steam flow speed and the diffusion range, sterilization dead angles are avoided, the steam flow path is reasonably controlled, energy waste is reduced, and sterilization uniformity and economical efficiency are remarkably improved.

【Problem】To provide a method for diagnosing faults in an industrial boiler based on a physics knowledge adversarial generation network even when boiler fault data is of poor quality or insufficient. 【Solution】First, step 1 of obtaining historical operation data of the industrial boiler and performing preprocessing of the data; step 2 of constructing a physics knowledge neural network model, constructing a mass and energy conservation formula related to the boiler, and simulating the operation of the boiler by the physics knowledge neural network; step 3 of constructing an improved adversarial generation network model, where the adversarial generation network generates good data using the competition between a generator and a discriminator, and its parameters are alternately trained by the generator and the discriminator; step 4 of training a diagnostic model using a training sample set, performing a fault diagnosis test using a test set, and verifying the effectiveness and superiority of the method by algorithm comparison. 【Selected Drawing】Figure 1

An energy storage system (TES) converts variable renewable electricity (VRE) to continuous heat at over 900° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. The delivered heat which may be used for processes including power generation and cogeneration. In one application, thermal energy storage systems are used to improve efficiency and reduce carbon emissions associated with processing materials or other industrial applications.

The invention belongs to the technical field of fire motors, and provides an operation control method for shutdown and non-shutdown of a thermal power generating unit under an accident working condition, and the method comprises the following steps: designing conditions for triggering and resetting the shutdown and non-shutdown working conditions; designing a large chain logic of the machine-furnace electric furnace; designing a boiler side rapid load reduction loop; designing bypass action logic and a desuperheating water regulating valve control strategy; designing main steam pressure disturbance and sliding pressure bias; optimization design of a related auxiliary machine system; according to the method, by designing triggering and resetting conditions of the working conditions of shutdown and no boiler shutdown, machine-boiler electric large chain logic, a boiler side rapid load reduction loop, bypass action logic, a desuperheating water regulating valve control strategy, main steam pressure disturbance and sliding pressure offset and optimization of related auxiliary machine systems, after a steam turbine or a power generator trips, the boiler side rapid load reduction loop can be rapidly desuperheated, and the boiler side rapid load reduction loop can be rapidly desuperheated. The boiler can still stably burn and keep the heat load stable, and steam parameters are ensured to be qualified, so that the time for restarting a unit is greatly shortened, and the operation efficiency and economic benefits of a power plant are improved.

The invention relates to the technical field of automatic control, and discloses an intelligent ash deposition prevention self-cleaning system for a flue of a low-temperature economizer of a coal-fired power plant. According to the system, data such as temperature, humidity and flue gas components in a flue are acquired in real time through the data acquisition module, the dust deposition condition and cleaning requirements of the flue are accurately evaluated, the omission phenomenon caused by misjudgment in the manual cleaning process is avoided, the data processing and analysis module improves the data processing precision, and the data processing and analysis efficiency is improved. The system can also monitor the running state of the flue in real time, so that a cleaning instruction is automatically sent out when necessary, the timeliness and effectiveness of cleaning work are ensured, the cleaning execution module can efficiently remove accumulated dust while reducing the temperature of the flue through a mode of combining high-pressure airflow, a vibration device and a water spraying system, the time needed by cleaning is remarkably shortened, and the cleaning efficiency is improved. And the monitoring feedback module evaluates the cleaning effect, it is ensured that each time of cleaning can reach the preset standard, and the intelligent level and safety of flue cleaning are further improved.

The invention discloses a thermal power plant boiler fault monitoring and early warning method and system, and the method comprises the steps: obtaining and analyzing the operation monitoring data of a thermal power plant boiler, and determining an abnormal operation parameter; performing data prediction on each abnormal operation parameter according to a preset prediction model to obtain corresponding abnormal prediction data, and performing analysis to determine abnormal features; evaluating the abnormal state of the thermal power plant boiler based on each abnormal feature to obtain an abnormal state evaluation value, and judging whether the thermal power plant boiler has a fault according to the abnormal state evaluation value; after the thermal power plant boiler is judged to have the fault, determining the fault type based on the abnormal operation parameters; and determining a fault level based on the fault type, and determining an early warning coping strategy according to the fault level. According to the invention, prediction is carried out by analyzing the operation monitoring data, the future change condition of the boiler is determined, and the fault is determined by evaluation based on the change condition, so that early warning is carried out, the fault risk can be effectively reduced, the safety, reliability and operation efficiency of the boiler are improved, and the production benefit is increased.

Provided is a method for controlling a boiler, the boiler including: a solid fuel burner that uses a solid fuel in a furnace to form a flame; a solid fuel adjustment unit that adjusts a supply amount of the solid fuel supplied to the solid fuel burner; an ammonia fuel burner that uses an ammonia fuel in the furnace to form a flame; and an ammonia fuel adjustment unit that adjusts a supply amount of the ammonia fuel supplied to the ammonia fuel burner, said method comprising a control step for controlling the solid fuel adjustment unit and the ammonia fuel adjustment unit, wherein, in the control step (S102), when a load increase operation for increasing the load of the boiler is performed, the ammonia fuel adjustment unit is controlled so as to increase the supply amount of the ammonia fuel supplied to the ammonia fuel burner during an operation period from the start of the load increase operation to the completion thereof.

The invention discloses a coal-fired unit main steam temperature control method based on feed water flow asynchronous regulation, which comprises the following steps of: firstly, calculating the variation of total heat carried by a boiler drum inlet working medium corresponding to unit feed water flow change, and further calculating the variation of saturated steam flow generated by a drum according to energy balance; therefore, the main steam temperature change value corresponding to the change of the unit feed water flow is obtained, then the feed-forward quantity of the main steam temperature deviation on the regulation of the feed water flow of the boiler system is obtained in combination with the real-time deviation of the main steam temperature, and asynchronous regulation of the feed water flow is realized. According to the method, the control effect of the main steam temperature can be greatly improved, and the method is of great significance to improvement of the rapid load changing capacity of the coal-fired unit.

The invention discloses a boiler air-coal ratio regulation and control optimization method and system, and relates to the technical field of boiler combustion control, and the method comprises the steps: interacting a target boiler, obtaining boiler operation parameters, calculating the actual air-coal ratio of each combustion area, and obtaining the target air-coal ratio distribution according to the boiler load and coal quality parameters; optimizing by taking the minimum deviation between the actual air-coal ratio distribution and the target air-coal ratio distribution as an optimization target, generating an optimal primary air parameter and an optimal secondary air parameter, generating an air-coal ratio regulation and control strategy of each combustion area, and issuing the air-coal ratio regulation and control strategy to a distributed control unit for coordinated regulation, so as to realize balanced combustion of the boiler. The technical problems that in the prior art, the boiler air-coal ratio control effect is poor, and combustion stability and heat efficiency are affected are solved, and the technical effects that the air-coal ratio control effect is remarkably improved, the combustion stability is improved, and the overall heat efficiency of the boiler is improved are achieved.

The invention discloses a single-tank hanging basket type immersion resistance type fused salt electric heating device, which belongs to the technical field of high-temperature heat storage equipment, and comprises a heat storage tank body, a tank cover, an electric heater, a stirring mechanism, a lifting execution mechanism and a control system, the electric heater comprises a connecting disc and a plurality of electric heating pipes which are integrated on the bottom surface of the connecting disc and are distributed radially and symmetrically; the stirring mechanism comprises a stirring shaft and stirring blades, and the upper end of the stirring shaft is in transmission connection with the first driving motor; the lifting executing mechanism comprises a lifting connecting rod correspondingly connected to the top end of the connecting disc. The lifting connecting rod penetrates through the tank cover through a sealing sleeve and is in transmission connection with a second driving motor. And the control system is electrically connected with the first driving motor, the second driving motor, the electric heater and the temperature sensor, is used for adjusting the immersion depth and power-on and power-off of the electric heater, and is linked with the stirring mechanism. Fused salt multi-gradient temperature field balance control is achieved by dynamically adjusting the immersion depth of the electric heating pipe, and thermal stress is reduced.

Disclosed in the present invention are a main steam temperature control method and system for an incineration boiler of a waste incineration power plant. The method comprises: forming a cascade PID control dual-loop on the basis of a primary desuperheater, a primary superheater, a main PID controller and an auxiliary PID controller, and tuning the cascade PID control dual-loop; obtaining the current main steam flow rate, the current main steam temperature and the current boiler hearth temperature, and the main steam temperature and the boiler hearth temperature after a set delay time; obtaining the current actual waste treatment amount and the density of waste entering the incineration boiler, and calculating a predicted value of the current waste incineration heat; calculating a temperature feedforward value of the main steam temperature; and superimposing the temperature feedforward value and a temperature adjustment value output by the auxiliary PID controller in the cascade PID control dual-loop, generating a control value on the basis of the superimposed value, and controlling the water spraying amount of the primary desuperheater on the basis of the control value. In the present invention, on the basis of conventional PID cascade dual-loop control, correction value feedforward compensation is added to the control loop, thereby effectively improving the stability of the main steam temperature in waste incineration power generation.