780 results about "Frequency regulation" patented technology

The invention discloses an intelligent energy storage system multi-target hierarchical scheduling method and system oriented to source network load storage cooperation, and belongs to the technical field of energy storage system optimization control. The method comprises three levels of day-ahead layer multi-objective game optimization, intra-day layer rolling correction optimization and real-time layer adaptive droop control. The day-ahead layer establishes three objective functions of economy, environmental protection and smoothness, and solves and outputs a day-ahead charging and discharging power plan by using a Nash negotiation algorithm. And the intra-day layer obtains ultra-short-term prediction data of the source load, performs rolling correction on the day-ahead plan by adopting a model prediction control method, and outputs a corrected real-time power instruction. The real-time layer collects power grid frequency deviation and a battery health state value, calculates an adaptive droop coefficient according to the health state value, and superposes and outputs primary frequency modulation response power and a real-time power instruction. According to the invention, source network load storage collaborative optimization is realized through multi-time scale hierarchical scheduling, and the service life of an energy storage system is prolonged through adaptive droop control based on health state perception.

The invention discloses a grid-connected inverter control method based on second-order linear active disturbance rejection, and particularly relates to the field of grid-connected inverter control. Voltage and frequency error signals between the output side of the inverter and the power grid are obtained, a pre-synchronization control model is constructed, and voltage amplitude and frequency synchronization is achieved; a second-order linear active-disturbance-rejection controller is introduced in the frequency synchronization control process, an extended state observer is adopted to estimate the output frequency, the frequency change rate and a disturbance term, and a state error feedback control law is combined to generate a frequency regulation control quantity, so that accurate frequency control is realized; after grid connection, a dual-channel LADRC power regulation controller is constructed, and decoupling tracking control is carried out on active power and reactive power; meanwhile, on the basis of fast Fourier transform processing as a stable grid-connected state criterion, the method has the advantages of being high in control precision, high in anti-interference capability, good in current waveform quality, high in adaptability and the like, and is suitable for various grid-connected application scenes.

The invention relates to the field of power system automatic control and new energy grid-connected operation, and provides an energy storage-containing new energy field station frequency modulation optimization method based on deep reinforcement learning. The method comprises the following steps: firstly, establishing a frequency response model containing an energy storage new energy field station, constructing a frequency modulation problem into a Markov decision process, and defining a state space containing a charge state and frequency deviation, an action space taking a charge and discharge power instruction as an element, and a multi-target reward function fusing a frequency regulation effect and charge state management; and then designing an intelligent agent network based on a long short-term memory network and an improved soft actor-commentator algorithm, constructing an online training framework with priority experience playback and a sliding time window, and realizing adaptive optimization of the strategy. And finally, generating a robust frequency modulation instruction in real time based on the trained model. Simulation shows that the frequency long-term regulation and control capability and the intelligent level can be remarkably improved, and the frequency modulation performance and the frequency modulation margin are effectively coordinated.

The invention discloses a new energy power grid hybrid energy storage system multi-dimensional regulation and control capability quantitative evaluation method and system, and mainly relates to the technical field of new energy power grid hybrid energy storage system regulation and control. Comprising the following steps: respectively constructing layered evaluation index systems of the hybrid energy storage unit in frequency modulation and peak regulation based on short, medium and long time scales; determining the weight of each level index in the index system; based on the hierarchical evaluation index system and the weight of each hierarchical index, performing comprehensive potential evaluation on the hybrid energy storage unit; and according to an evaluation result, the regulation and control capability of the hybrid energy storage system under different time scales is comprehensively evaluated, and an optimization and scheduling strategy of the energy storage unit is formulated according to the evaluation result. The method has the beneficial effects that the frequency modulation, voltage regulation and peak regulation potentials of the hybrid energy storage system can be quantified under different time scales, and the optimal energy storage configuration and operation strategy can be formulated according to the frequency modulation, voltage regulation and peak regulation potentials.

The invention relates to the technical field of power dispatching, in particular to an energy storage combined frequency modulation control method and system in a source-network-load-storage integrated regional power grid, and the method comprises the steps: dynamically calculating the adjustable capacity of each resource, dynamically aggregating the total adjustable capacity of the system, sensing the multi-dimensional frequency situation and calculating the adjusting power, and selecting a frequency modulation mode and generating a power distribution strategy. And generating a splitting and isolated network frequency modulation stability control strategy and performing system grid-connected resynchronous operation. The method is suitable for guiding power supply, energy storage and load all-resource collaborative frequency modulation strategy generation in a regional power grid. For consistency of frequency deviation, frequency change rate and active power flow direction, multi-dimensional frequency situation awareness is constructed, power distribution strategies in different modes are generated based on a total adjustable capacity interval of a system, and a frequency stability control and grid-connected resynchronization strategy after splitting is given when the frequency and the adjustable interval exceed limits. Accurate matching of all-resource collaborative frequency modulation and strategies in a regional power grid is realized, and the frequency modulation response speed of the system is improved.

A coordinated optimization method for VSC-HVDC Frequency Synchronization Control and primary frequency regulation of hydropower includes: obtaining optimal PI parameters of the VSC-HVDC Frequency Synchronization controller from a first layer output of a dual-layer optimization model for coordinated parameters of VSC-HVDC Frequency Synchronization and primary frequency regulation; and obtaining a target PID control parameters from a second layer output of the dual-layer optimization model. The coordinated optimization method further includes adjusting the optimal PI parameters of the synchronization controller based on the target selection range and updating the PID control parameters of the primary frequency regulation system of hydropower based on the target PID control parameters. This approach aims to address the challenge of balancing the frequency response speed between the VSC-HVDC synchronization system and the primary frequency regulation system of hydropower.

The invention discloses an energy storage power station capacity measuring and calculating method considering the power grid bearing capacity and multiple application scenes. The method comprises the following steps: firstly, performing fitting correction on a scene by adopting a scene aggregation correction technology based on least square fitting; and constructing an energy storage power station capacity optimal measurement and calculation model considering the power grid bearing capacity and multiple application scenes, finally carrying out linear transformation on the energy storage power station capacity optimal measurement and calculation model, and solving by adopting commercial optimization software. According to the calculation model, multiple application scenes are introduced, and peak regulation, frequency modulation and standby multiple dimensions are considered, so that the operation and income calculation of the energy storage power station are more comprehensive, the behavior of investing the energy storage power station on the user side can be better simulated, and the influence of energy storage access on the power grid can be better evaluated. According to the scene aggregation correction technology, fitting correction is carried out on the scene by introducing the least square method, more efficient and accurate scene expression is achieved, and the problem solving scale and solving difficulty are reduced.

The invention discloses an energy storage intelligent control system capable of meeting peak and frequency regulation scheduling requirements of a virtual power plant, and aims to realize efficient coordination of scheduling of an energy storage unit and the virtual power plant and guarantee stable operation of a power grid. The system comprises a data interaction module, a decision control module and an execution control module, the data interaction module receives peak regulation and frequency modulation instructions of a virtual power plant dispatching center in real time, and collects real-time data of an energy storage unit (charge state, charge and discharge power and health state) and a power grid (frequency and load); the decision control module generates a charging and discharging control strategy by adopting a multi-target optimization algorithm based on the data, and the strategy simultaneously meets the targets of peak regulation load stabilization and frequency modulation frequency stabilization and adapts to the charge and health state constraints of the energy storage unit; and the execution control module executes hierarchical cooperative charging and discharging control on the energy storage unit according to the strategy, when peak regulation and frequency modulation instructions conflict, execution is performed according to a priority rule preset by a scheduling center, and scheduling requirements and operation safety of the energy storage unit are effectively balanced.

The invention discloses an integrated optimization method of a flywheel energy storage system. The corresponding system is formed by connecting a plurality of flywheel monomers in parallel through a direct current bus. The method comprises the steps that the real-time rotating speed, the direct-current bus voltage, the maximum charging and discharging power capacity and a power grid frequency modulation power instruction of each flywheel single body are collected; calculating current stored kinetic energy based on the rotating speed and the rotational inertia of the rotor, and normalizing to obtain an energy state index SoE; a double-layer collaborative architecture is adopted for power scheduling; at the moment of charging and discharging mode switching, the total disturbance of the system is estimated on line through a cascade expansion state observer, and feed-forward compensation is implemented in control output to suppress instantaneous fluctuation of the voltage of the direct-current bus. According to the method, the SoE is obtained by calculating the kinetic energy and normalizing the kinetic energy, so that the accurate representation of the energy storage state is realized; and voltage fluctuation can be effectively suppressed when working conditions suddenly change. The method avoids overcharge and overdischarge of individual units, guarantees high reliability and safety, prolongs the service life of equipment, and is especially suitable for power grid frequency support application in a high-proportion renewable energy access scene.

The invention relates to a primary frequency modulation control method for a pumped storage coupled compressed air energy storage system, and the method comprises the steps: building a frequency modulation control model based on the core component information and operation constraints of the pumped storage coupled compressed air energy storage frequency modulation system, building a state space model, and building a discretization state equation, establishing a comprehensive optimization model by taking the minimum power grid frequency deviation and the system operation cost as targets; and establishing a multi-parameter planning model based on the reservoir level, the gas storage pressure, the frequency deviation and the comprehensive optimization model, and converting a hierarchical model prediction control problem into multi-parameter quadratic programming to form a self-healing frequency modulation strategy to perform power output tracking control. Therefore, the problem that the frequency modulation performance is limited due to the fact that a water pressure system and an air pressure system in the hybrid power station are complex in coupling and large in response difference, and a related linear control strategy or a single control framework is difficult to achieve rapid response and accurate coordination of the hybrid system in the primary frequency modulation process is solved.

The invention discloses an island micro-grid frequency coordination control method based on flywheel and battery hybrid energy storage, and provides a hybrid energy storage coordination control method for solving the problem that a diesel generator in an island micro-grid is low in inherent response speed and difficult to deal with rapid load disturbance in time. The method combines the advantages of a flywheel energy storage system (FESS) and a battery energy storage system (BESS) to construct a multi-time-scale frequency regulation mechanism: the FESS is responsible for absorbing or releasing a high-frequency power component and quickly responding to instantaneous fluctuation; the BESS bears an intermediate-frequency power component and realizes medium-term energy regulation; and the diesel generator compensates the low-frequency power component and maintains long-term steady-state operation. Through the multi-unit collaborative hierarchical control, the frequency stability and the operation reliability of the island micro-grid are remarkably improved, the dynamic regulation pressure of the diesel engine is reduced, and the frequent charge-discharge cycle of the battery is reduced, so that the service life of the energy storage system is prolonged.

The invention discloses a new energy county power grid frequency voltage cooperative enhancement system and method, and relates to the technical field of new energy power grids. The method comprises the following steps: collecting real-time operation parameters of a county power grid for pattern recognition to obtain a current operation scene label; calling a frequency regulation and control rule fragment and a voltage regulation and control rule fragment which are matched with the frequency regulation and control rule fragment, and constructing an initial regulation and control rule sequence; performing multi-domain constraint calculation on the sequence, establishing a frequency-voltage linkage coupling relation, and generating an optimized regulation and control rule sequence; calculating an influence echo index between regulation and control actions, and when the influence echo index exceeds a preset echo threshold value, selecting a suppression type to replace the rule fragment for correction; and performing consistency verification on the corrected regulation and control rule sequence, triggering rollback and substitution branches when verification fails, and if the substitution branches are not available, executing minimum offset solution to generate a final regulation and control rule sequence. According to the invention, the stability and reliability of new energy county power grid operation are significantly improved.

The invention discloses a high-precision clock taming and signal shaping method and device for a satellite timing system. The method comprises the following steps of: counting and measuring a reference pulse per second received in real time by using a local high-frequency clock signal output by a local voltage-controlled crystal oscillator to obtain a phase counting deviation sequence of the local high-frequency clock signal relative to the reference pulse per second; inputting the phase counting deviation sequence into the frequency control closed-loop model, analyzing the historical state characteristics of the phase counting deviation sequence, and calculating a frequency adjustment instruction for the local voltage-controlled crystal oscillator; the frequency adjusting instruction is converted into an analog voltage signal, a local voltage-controlled crystal oscillator is driven to adjust the output frequency, and a tamed local high-frequency clock signal is obtained; the tamed local high frequency clock signal is utilized to drive phase warping logic to generate a local pulse per second synchronized with the reference pulse per second. According to the invention, through adaptive closed-loop control and phase regulation, precise taming of crystal oscillator frequency and high-precision shaping of output signals are realized.

A dynamic frequency coordination control method for asynchronous regional power grids during wet and dry seasons is provided. By using frequency synchronous control in VSC-HVDC, frequency consistency and synchronization between the sending-end and receiving-end grids can be ensured within the range of power adjustment, enabling real-time and automatic sharing of frequency regulation resources between the two grids. Through the use of bilateral frequency limiting control in LCC-HVDC, the frequency regulation effect is enhanced, balancing frequency fluctuations between the sending-end and receiving-end grids. VSC-HVDC adaptive reactive power support control is employed to provide reactive power support to nearby LCC-HVDC, avoiding frequent operations of LCC-HVDC converter transformers and filters during frequency limiting control actions, thereby extending equipment lifespan. Furthermore, by utilizing grid-following and grid-forming control in renewable energy grid integration with additional frequency control, the frequency support capacity of renewable energy generation is improved.

The invention discloses a distributed power supply secondary frequency adjustment control method for communication misleading data, and the method comprises the steps: building a discretization frequency adjustment model of each distributed power supply, and enabling measurable disturbance to serve as feed-forward compensation to be added into the model; constructing a communication topology consisting of nodes and neighbors thereof, and collecting own frequency and neighbor frequency to form a to-be-fused set under the condition that misleading data exists; sorting the set and calculating a median reference frequency according to a sequence number position, so that an end point abnormal value does not influence the determination of the reference frequency; a control rate is set based on whether the node can receive the global reference frequency, and the node frequency is updated by a fixed control gain. According to the method, abnormal node detection and isolation operation are not needed, the frequency adjustment direction can be kept stable under the condition that noise, delay or false data injection exists in a communication link, the frequencies of all nodes are finally converged to a rated value, and the method is suitable for distributed frequency modulation control under the conditions of high-proportion new energy access and unreliable communication.

The invention belongs to the technical field of waste heat boiler circulating pump management and control, and particularly relates to a waste heat boiler circulating pump cooperative control system based on multi-working-condition frequency conversion regulation, which comprises a working condition dynamic clustering recognition module, a cooperative decision control module, a working condition maintenance evaluation module, a health degree hindering output module and a remote supervision center, the operating condition of the waste heat boiler circulating pump is accurately judged through the working condition dynamic clustering recognition module, the collaborative decision control module generates a targeted control instruction according to the unstable working condition type so as to reasonably adjust the waste heat boiler circulating pump, and safe and stable operation of the waste heat boiler circulating pump can be guaranteed. The working condition maintenance evaluation module comprehensively evaluates the working condition maintenance performance through multi-dimensional indexes, operation fluctuation accumulation is avoided, the health degree hinders the output module from adopting two-dimensional evaluation logic, early warning can be triggered in advance, maintenance is involved, the equipment sudden failure and replacement cost is reduced, and full-process guarantee is provided for operation of the waste heat boiler circulating pump.

The invention discloses a virtual power plant rapid frequency modulation control system and control method, and the method comprises the steps: adaptively adjusting a sampling period through a dynamic sampling algorithm based on a sliding window variance; low-delay calculation of high-frequency data is realized by adopting a multi-thread queue communication technology; a multi-core ARM processor running a real-time operating system is used for executing a multi-thread control model, and data acquisition, algorithm control, fault diagnosis and communication tasks are processed in parallel; according to the control algorithm, frequency prediction feedforward signals based on an AI model and SOC state feedback are fused, and dynamic optimization of PID parameters is achieved. According to the method, millisecond-level frequency modulation response can be realized, the instruction response delay is less than 80ms, the frequency adjustment error is less than + / -0.01 Hz, the frequency modulation performance of a virtual power plant and the stability of a power grid are remarkably improved, and meanwhile, the service life of energy storage equipment is prolonged through SOC collaborative optimization. The invention aims to solve the problems of slow response and low precision of the existing frequency modulation technology.

The embodiment of the invention provides a flywheel direct-driven cogeneration unit dynamic adjusting system and a control method thereof, in the embodiment of the invention, a magnetic suspension technology is adopted to eliminate friction of a traditional mechanical bearing, and quick starting and stopping of the rotating speed of a flywheel are realized; the high-temperature superconducting magnetic clutch achieves instantaneous mechanical coupling / decoupling of the flywheel and the circulating pump through the zero resistance characteristic, and the response time is short. The frequency modulation requirement of a new energy power grid can be matched, and meanwhile hard constraint of thermal load fluctuation on electric energy output is avoided. The mechanical direct-drive path directly utilizes the kinetic energy of the flywheel to drive the circulating pump, so that a multi-stage energy conversion link in a traditional mode is omitted; the electric adjusting path realizes bidirectional power exchange between the flywheel and a power grid through an energy interface device, and the loss of an inverter is reduced; and the high-temperature superconducting magnetic clutch realizes zero-energy-loss transmission in a coupling state. The magnetic suspension flywheel set adopts a non-contact suspension technology, so that mechanical wear is eliminated; the high-temperature superconducting magnetic clutch achieves non-contact transmission through magnetic coupling, and friction loss is avoided.

Provided in the present invention are a primary frequency regulation dynamic simulation method and apparatus based on a thermal power condensate water throttling strategy, which are used for analyzing the dynamic characteristics of a unit when a power plant executes a primary frequency regulation instruction by means of a condensate water throttling strategy after a power disturbance occurs in a power grid. The dynamic characteristics mainly comprise the characteristics of a steam turbine speed governor system, the characteristics of a variable-frequency condensate pump system, the dynamic heat exchange characteristics of a low-pressure heater and extraction steam, the flow characteristics of an extraction steam pipeline, and the output characteristics of a steam turbine body. A moving boundary method is mainly applied to a heat exchange process between condensate water (a cold fluid) and shell-side extraction steam (a hot fluid) in a low-pressure heater. The heat exchange process between the cold and hot fluids can be divided into a superheated section, a phase change section and a subcooled section on the basis of the aggregation state of the extraction steam. When the moving boundary method is applied to a steam turbine regenerative system, the dynamic variation laws of extraction steam temperature and pressure can be more accurately obtained, and the extraction steam pressure on a low-pressure heater side is a key factor in determining the extraction steam flow rate on a low-pressure cylinder side, and is also critical in determining the instantaneous power increment of a steam turbine. Moving boundary method-based frequency regulation dynamic simulation for thermal power condensate water throttling takes into account relatively comprehensive actual process factors, and only one-dimensional modeling along an axial main flow direction is taken into account, thus combining the advantages of fast and accurate simulation. A fast and accurate simulation method is a prerequisite for implementing power grid frequency security analysis. By mastering the dynamic process of power plant load response from the moment a frequency deviation exceeds a dead band to the moment same returns to the dead band, a foundation can be provided for the primary frequency regulation control of power plants and the frequency security analysis of power grids.

The invention provides a performance simulation test method and system for a pumped storage power station. The method comprises the following steps: acquiring characteristic data of the pumped storage unit, and performing characteristic line method analysis and dynamic impedance modeling to obtain a nonlinear hydraulic system mathematical model; constructing a synchronous generator model and an excitation system model, and constructing an AGC control model and a primary frequency modulation control model; generating a simulation system; generating a coordination control strategy by using a variable gain PID control algorithm based on a fuzzy control theory, and a dynamic weight distribution mechanism and a feed-forward compensation mechanism of an AGC instruction and a primary frequency modulation response; and executing a simulation test of a normal operation condition, a large disturbance condition and a condition switching process, and generating a performance test result. Through accurate modeling and coordinated control strategies, the problem of mutual interference between AGC and primary frequency modulation is solved, the stability and response speed of the pumped storage power station in power grid frequency regulation are improved, and the frequency modulation performance of a unit under different working conditions can be comprehensively evaluated.

The invention discloses a photovoltaic power station frequency modulation control method, system and device considering frequency partition and power constraint and a medium, and belongs to the technical field of power system automation control, and the method comprises the steps: monitoring the frequency deviation and frequency change rate of a power grid; dividing the frequency modulation process into a frequency drop stage and a frequency recovery stage; performing differential adaptive adjustment on the virtual inertia control parameter and the virtual droop control parameter of the photovoltaic power station; dynamically constraining a frequency modulation power instruction calculated based on the adjusted parameters according to the real-time available power capability of the photovoltaic power station; actions of the photovoltaic power station are controlled, and power grid frequency recovery is supported. According to the method, the control stages are adaptively divided according to the frequency dynamic process, and the virtual inertia and the droop coefficient are differentially adjusted, so that accurate matching of the control strategy and the frequency change process is realized, and the frequency modulation performance is optimized in two aspects of suppressing frequency drop and guaranteeing stable recovery.

The present invention relates to the technical field of automatic control for thermal power energy storage, and relates to a unit load advanced control method based on a battery energy storage state, comprising: determining the state of a thermal power unit on the basis of an AGC command and current load of the thermal power unit; determining whether an energy storage output of an energy storage system meets the AGC command; if not, establishing an initial thermal power unit heat storage coefficient and a prediction thermal power unit heat storage data set on the basis of the state of the thermal power unit; constructing a thermal power unit heat storage coefficient prediction model; and inputting operation data of the thermal power unit into a trained thermal power unit heat storage coefficient prediction model, generating a predicted thermal power unit heat storage coefficient, constructing a correspondence between the predicted thermal power unit heat storage coefficient and a load command advance amount, and generating a load command and executing same by the thermal power unit. The present invention solves the problem in the prior art of excessively high unit load caused by allocating frequency regulation tasks to energy storage systems and conventional thermal power units according to a fixed proportional coefficient.

The invention provides a high-power rectification resonance control method and system for a quick charger, relates to the technical field of rectification resonance, and aims to obtain direct-current bus voltage, adjust output power through frequency modulation of a full-bridge LLC resonant converter, and perform voltage stability control adjustment in combination with feedback current data. Charging curve data analysis is carried out to acquire charging key nodes and resonance frequency nodes, device state data acquisition and analysis are carried out, a frequency conversion control loop is constructed, resonance frequency adjustment is carried out, after adjustment is completed, abnormal nodes are identified and combined analysis is carried out, optimal parameters of each load segment are acquired, and voltage fluctuation data are acquired. The method comprises the steps of carrying out fluctuation influence analysis, carrying out fluctuation suppression by adjusting a switching frequency and phase shift angle combination of a full-bridge LLC resonant converter, carrying out calculation through the full-bridge LLC resonant converter to obtain an equivalent voltage control instruction, carrying out mode buffer switching and obtaining mode control switching data, and realizing rectification resonance accurate control of the charger.

The invention relates to the technical field of air conditioner control, in particular to a refrigeration and dehumidification optimization method, device and equipment and a storage medium. According to the method, expected humidity and expected temperature serve as target parameters, real-time environment humidity and real-time environment temperature are collected to serve as real-time working parameters, and temperature and humidity two-dimensional control is achieved by calculating derivative parameters; the limitation of a traditional single temperature control mode is broken through, and the health risk caused by excessive reduction of humidity is avoided; the self-adaptive fuzzy PID algorithm is adopted to calculate the basic frequency, and compared with a traditional PID control method, the algorithm can dynamically adapt to environment changes, and the real-time performance and accuracy of compressor frequency adjustment are improved; through the cooperative adjustment of the refrigeration correction target frequency and the fan target gear, the refrigeration efficiency is optimized, and the convergence of the temperature to the target parameter is accelerated; by adjusting and monitoring the working state of the air conditioner, continuous optimization of the refrigeration and dehumidification process is ensured, and the reliability of the whole system and the somatosensory comfort of a user are improved.

The invention discloses a frequency safety assessment method and system for a high-proportion new energy power system, and the method comprises the steps: taking a frequency margin index as a constraint, and calculating a system rotational inertia margin and a bearable disturbance margin in a large disturbance fault scene; calculating a frequency modulation resource margin, a climbing resource margin and a standby resource margin in a power fluctuation scene by taking a frequency margin index as a constraint; determining the anti-disturbance capability based on the system rotational inertia margin and the bearable disturbance margin; determining the frequency regulation capability based on the frequency modulation resource margin, the climbing resource margin and the standby resource margin; and optimization control is carried out based on the anti-disturbance capability and the frequency adjustment capability, so that the high-proportion new energy power system is in a safe and stable state. According to the invention, online calculation of the anti-disturbance capability and the frequency adjustment capability of the system can be realized, the current frequency safety level of the power grid can be rapidly evaluated, and panoramic perception and early warning of frequency safety can be realized.

The invention provides a hydroelectric generating set frequency modulation optimization method and a related device, and belongs to the technical field of frequency modulation optimization. According to the method, minimization of power auxiliary service assessment loss is taken as a target function, and a weight coefficient and a PID parameter used when a feed-forward opening instruction is generated are iteratively updated based on an adjusting speed performance index and an adjusting precision performance index; whether the current output distribution proportion of the energy storage system and the hydroelectric generating set meets the assessment requirement or not is verified, and if the current output distribution proportion meets the assessment requirement, an adjusting instruction is output based on the weight coefficient and the PID parameter which are used when the feedforward opening instruction is generated after iteration updating; and if the assessment requirement is not met, the output distribution proportion and the control mode of the energy storage system and the hydroelectric generating set are readjusted until the assessment requirement is met, and an adjustment instruction is output. The problems of serious economic loss and high cost during frequency modulation of the hydroelectric generating set in the prior art are solved.

The invention relates to the technical field of medical nebulizers, in particular to a chip special for a medical nebulizer and an atomization control method and device.The chip comprises a reconfigurable high-performance microprocessor kernel, an execution atomization control algorithm, a high-precision analog signal processing module, a real-time monitoring and adjusting pressure, temperature, humidity and medicine liquid level signals in an atomization cavity and a control module. The special chip for the medical nebulizer comprises a sensor fusion interface, a compatible piezoelectric, ultrasonic, temperature and humidity and optical particle sensor, a biological feature recognition unit, a low-power-consumption wireless communication module, a BLE5.0 and NB-IoT dual-mode transmission supporting and dynamic voltage frequency regulation power supply management unit, and the special chip for the medical nebulizer and the nebulization control method and device. By means of the high-performance microprocessor and the high-precision analog signal processing module, real-time monitoring of pressure, temperature and humidity in the cavity is more accurate, dynamic adjustment of the atomization rate and the particle size is more reliable, the efficiency of converting medicine into effective aerial fog is remarkably improved, and full utilization of treatment substances is ensured.

The invention discloses an adaptive adjustment control method and system for accessing an energy storage power station to a power system, and belongs to the technical field of power grid control, and the method comprises the steps: obtaining a power grid node parameter, an energy storage power station operation parameter and an initial droop coefficient in the power system, constructing a power system distribution objective function, and combining a power system constraint condition to obtain a power system distribution objective function; carrying out optimization calculation to obtain peak regulation capacity, frequency modulation capacity and voltage regulation capacity distribution schemes of each energy storage power station; calculating a dynamic droop coefficient of each energy storage power station by combining the maximum fluctuation interval of the node voltage and the maximum fluctuation interval of the frequency of the power grid, and controlling each energy storage power station to adjust the output power according to the corresponding dynamic droop coefficient; in a set scheduling period, power grid node parameters and energy storage power station operation parameters are periodically updated, and then an adjustment capacity distribution scheme and a dynamic droop coefficient of each energy storage power station are updated and calculated. And adjusting the droop coefficient of the power station and accurately regulating the output of the power station according to the actual condition of the power station and node frequency and voltage regulation requirements.