33 results about "Instantaneous energy" patented technology

The invention relates to the technical field of charging switching control, in particular to a dynamic switching system for cooperative work of wireless charging and wired charging, which performs node modeling and edge weight propagation on multiple parameters such as magnetic field intensity, current fluctuation ratio, contact resistance and temperature threshold through a graph neural network. Structured expression and dynamic updating of a nonlinear coupling relation among parameters are achieved, abnormal feature aggregation and channel state characterization are more refined, fuzzy reasoning and weight adjustment are conducted on multiple variables such as power output, the heat growth rate, the voltage drop rate and the energy efficiency ratio through fuzzy logic control, the stability of a channel priority sequence is enhanced, and the stability of the channel priority sequence is improved. Through dynamic detection of power curve intersection points and transition section time sequence calculation, continuous power distribution is converted into a smooth function interval, instantaneous energy abrupt change during switching is reduced, closed-loop correction of multi-period signals is achieved, and the system keeps stable operation and energy efficiency output consistency under high-dimensional parameter disturbance.

The invention relates to the technical field of electric energy metering, in particular to a high-precision voltage and current synchronous metering system of an alternating current and direct current integrated standard electric energy meter, which is characterized in that a hysteresis analysis module and an eddy current analysis module are used for respectively analyzing current signals to obtain a hysteresis intensity factor and an eddy current loss factor of the electric energy meter; a time scale weight and an instantaneous energy loss proportion are introduced through a hysteresis and eddy current coupling module, a comprehensive loss factor of an eddy current effect and a hysteresis effect is analyzed, self-adaptive distribution of weights of the eddy current effect and the hysteresis effect is realized, and primary compensation is performed on a current signal; the temperature compensation module analyzes the influence of the temperature on the electric energy meter, and performs temperature compensation on the voltage signal and the current signal. The system can effectively cope with complex dynamic working conditions, guarantees the temperature stability of measurement, cuts off the transmission and accumulation paths of errors from the source, improves the metering precision under AC / DC mixed signals, and guarantees the interpretability and reliability of the system.

A pumped storage unit main transformer winding inter-turn short circuit fault diagnosis positioning method and system, comprising: pulse injection is carried out on the main transformer of the pumped storage unit in the shutdown state, and the voltage response waveform is obtained; the characteristic waveform is calculated, the different connection modes of the pumped storage unit main transformer winding are combined, whether the pumped storage unit main transformer winding exists fault and the fault phase are judged; the VMD decomposition optimization model and the NTEO wave head extraction optimization model with optimal parameters are constructed, and the instantaneous energy spectrum is obtained based on the model and any characteristic phase containing characteristic phase; the fault positioning formula is constructed based on the instantaneous energy spectrum, the fault positioning formula corresponding to the relationship between the characteristic phase and the fault phase in the voltage response waveform is selected according to the relationship between the characteristic phase and the fault phase, and the positioning of the fault coil is obtained. The method has high reliability, high fault diagnosis accuracy and small positioning result error, and can meet the needs of pumped storage unit main transformer winding inter-turn short circuit fault diagnosis and positioning in engineering.

The invention relates to the technical field of industrial cleaning, in particular to an annular pulse plasma cleaning device and method for a precise instrument. According to the technical scheme, the plasma cleaning device comprises a high-voltage pulse power supply, a host device, a supporting bracket and an object carrying platform, the high-voltage pulse power supply, the host device, the supporting bracket and the carrying platform are sequentially arranged from top to bottom; the host device comprises an air valve, an outer electrode, a diagnosis port, a cylindrical inner electrode, a conical inner electrode, a solenoid, a top flange, an insulating part, a sealing part and a control computer. High-density compact ring plasma clusters are adopted for pulse type directional cleaning, cleaning uniformity is improved, heat input is greatly reduced due to the instantaneous energy deposition characteristic, damage to heat-sensitive materials is avoided, the modular generator is compact in structure and convenient and fast to maintain, accurate positioning is achieved through cooperation with X-axis and Y-axis guide rails, and the service life of the modular generator is prolonged. The device is suitable for efficient cleaning of complex structures and stubborn pollutants.

The invention discloses a fault positioning method and device for a power supply line of a coal mining machine, a medium and equipment, and relates to the technical field of coal mine intelligent power grid information. The method comprises the following steps: carrying out adaptive decomposition on an actual current traveling wave through a variational mode decomposition algorithm after parameters are optimized through a pigeon inspired algorithm; selecting a head end IMF component and a tail end IMF component from the plurality of IMF components at the head end of the actual current traveling wave and the plurality of IMF components at the tail end of the actual current traveling wave; respectively extracting instantaneous energy distribution diagrams of the head end IMF component and the tail end IMF component; capturing moments corresponding to energy abrupt change points from the instantaneous energy distribution diagrams of the head end IMF component and the tail end IMF component; according to the moment when the actual current traveling wave reaches the head end and the moment when the actual current traveling wave reaches the tail end, the distance between the single-phase earth fault point and the head end of the coal cutter power supply line is determined. The method can improve the accuracy of coal mine circuit fault positioning.

The invention relates to a multi-level wide-modulation-ratio energy balance cycle control method and device for a high-speed flywheel, and the method is applied to the recycling of regenerative braking energy of a metro traction power supply system, and the capacitor voltage balance of a sub-module is maintained by selectively adopting a bubble sorting-carrier phase-shifting modulation method. When the difference value of the capacitor voltage of the sub-module is large, the capacitor voltage balance of the sub-module can be maintained, a PWM signal is generated to control the on and off of a switching device of the sub-module, and the problem of voltage balance control of the sub-module of the modular multilevel converter under high-frequency fundamental waves is solved. The device can be mounted on a direct-current traction network side of a subway traction power supply system, is used for recycling regenerative braking energy of a subway, and can perfectly meet the instantaneous energy requirement of frequent start and stop of the subway. Compared with the prior art, the wide-modulation-ratio energy balance cycle control method is utilized, the electric energy and kinetic energy conversion efficiency can reach 90%-95%, and the electric energy and kinetic energy conversion efficiency is far higher than that of a traditional energy storage system.

This invention relates to a method and apparatus for high-speed flywheel multi-level wide-modulation specific energy balance cyclic control. The method is applied to the recycling of regenerative braking energy in subway traction power supply systems. By selectively employing a bubble sorting-carrier phase-shift modulation method to maintain the voltage balance of sub-module capacitors, it can maintain voltage balance even when the voltage difference between sub-module capacitors is large, and generate PWM signals to control the switching on and off of sub-module switching devices, thus solving the problem of voltage balance control for modular multi-level converter sub-modules under high-frequency fundamental frequencies. This apparatus can be installed on the DC traction network side of the subway traction power supply system to recycle the subway's regenerative braking energy, perfectly matching the instantaneous energy demands of frequent subway starts and stops. Compared with existing technologies, this invention, utilizing a wide-modulation specific energy balance cyclic control method, achieves an energy-to-kinetic energy conversion efficiency of 90%-95%, far exceeding traditional energy storage systems.

The invention relates to the technical field of power fault discrimination, in particular to a power supply network ground fault discrimination method and system based on zero-sequence electrical parameter signals, and the method comprises the steps: obtaining various zero-sequence electrical parameter signals; decomposing the various zero-sequence electrical parameter signals, analyzing similarity measurement of amplitude distribution between the various zero-sequence electrical parameter signals and each IMF component, and determining a noise influence characteristic value of each IMF component of the various zero-sequence electrical parameter signals in combination with the confusion degree of each IMF component; determining a peak distribution characteristic value of each IMF component based on the overall fluctuation characteristic of the instantaneous energy intensity, and obtaining a noise influence coefficient of each IMF component; determining a wavelet denoising threshold value for each layer of each IMF component; and reconstructing all the de-noised IMF components to obtain various filtered zero-sequence electrical parameter signals, and carrying out ground fault judgment. The invention aims to improve the accuracy of ground fault judgment.

The invention relates to the technical field of micro-grid instantaneous energy hierarchical regulation and control, and discloses a micro-grid instantaneous energy hierarchical regulation and control method, which comprises the steps of setting a hierarchical limit value of a micro-grid instantaneous energy balance index; dC side voltage values and current values of all converters in the microgrid are detected in real time, and an instantaneous energy balance index value of the microgrid is calculated; judging the instantaneous energy balance index value of the micro-grid, and judging whether the instantaneous energy per unit value of the micro-grid exceeds the limit or not; and if it is judged that large disturbance or fault occurs in the micro-grid, the micro-grid stops running. The method not only helps to guarantee safe and stable operation of the microgrid, but also helps to improve the absorption capability of the microgrid to the distributed power supply.

This invention provides an active power regulation method and system that considers instantaneous energy distribution efficiency, relating to the field of wind power grid-connected control technology. The invention establishes a synchronized operation system model based on the system parameters of the wind turbine and synchronous machine, determines the total inherent active power regulation coefficient and synchronous torque coefficient of the system to obtain the conservative instantaneous power of the synchronized system; introduces an active power regulation proportional coefficient into the model and constructs an instantaneous energy function during synchronized system oscillation, analyzing the instantaneous energy distribution law between synchronized units; after a disturbance, the instantaneous energy distribution efficiency is determined based on the instantaneous energy of the synchronous machine, a target efficiency is given, and the active power regulation proportional coefficient is solved based on the total instantaneous energy conservation, thereby calculating the design value of the active power regulation coefficient and setting it in the active power controller of the wind turbine unit, so that when the system detects frequency or power disturbances, the wind turbine participates in regulation according to the design value, thereby improving the power oscillation suppression capability.

This invention relates to the technical field of hydrogen production through water electrolysis, and discloses a collaborative support method and energy management platform for hydrogen production through water electrolysis energy storage devices. The platform includes a data acquisition layer, a collaborative control layer, and an execution layer. Instantaneous charge and discharge compensation is performed by the energy storage device to cover the response vacuum period during the initial stage of hydrogen production power ramp-up. Simultaneously, a stepped hydrogen production power adjustment mechanism is adopted to adjust the single power change amplitude to be lower than the rated power and adjacent adjustment intervals, forming a multi-timescale collaborative chain of "instantaneous energy storage compensation + stable hydrogen production follow-up." Through the hydrogen production start-up threshold and the energy storage device start-up threshold, combined with the energy storage power dynamic calculation model, the discharge power is linearly adjusted in real time following the frequency deviation amplitude, achieving intelligent division of labor of "high-frequency fluctuation energy storage main control and continuous fluctuation hydrogen production relay."

The invention relates to the technical field of coal-fired power plant boilers, and provides a boiler instantaneous energy quality accurate regulation and control rapid load changing system and a control method.The system comprises a main steam system and a reheat steam system and further comprises a first bypass steam system, a second bypass steam system and a control unit; an inlet of the first bypass steam system is connected to a water-cooled wall outlet of the main steam system, and an outlet of the first bypass steam system is connected to a platen superheater inlet of the main steam system; an inlet of the second bypass steam system is connected to a low-temperature reheater outlet of the reheat steam system, and an outlet of the second bypass steam system is connected to a high-temperature reheater inlet of the reheat steam system; the control unit is configured to adjust the steam working medium flow of the first bypass steam system and the second bypass steam system according to a load instruction during the unit load increasing period. According to the scheme, the transformation cost is low, the implementation difficulty is small, and a feasible technical path is provided for an active-service unit to achieve rapid load change and energy quality accurate regulation and control standard reaching.

This invention discloses a high-precision ranging method and system for time-refined DC back-traveling waves, belonging to the field of power system fault location technology. The method includes: acquiring signals and performing mode transformation to extract first-mode voltage and current signals; establishing a time-domain expression for the back-traveling wave; performing wavelet denoising on the signals to extract the first-mode DC voltage signal; reconstructing the time scale in the time-refined model; performing variational mode decomposition and Hilbert transform to obtain instantaneous amplitude and instantaneous energy sequences, constructing an energy kurtosis index, detecting sudden increases in energy kurtosis, and identifying the arrival time of the first DC back-traveling wavefront generated by the fault; calculating the wavefront arrival time difference based on the arrival times of the first DC back-traveling wavefront measured at both ends of the DC line, and determining the location of the fault point by combining the DC line length and traveling wave propagation characteristics. This invention has low dependence on traveling wave propagation parameters, provides reliable ranging results, and is applicable to deep-sea offshore wind power flexible DC systems.

This invention relates to the field of electricity metering technology, specifically to a high-precision voltage and current synchronous metering system for AC / DC integrated standard electricity meters. The system uses a hysteresis analysis module and an eddy current analysis module to analyze the current signal, obtaining the hysteresis intensity factor and eddy current loss factor of the electricity meter. Then, through a hysteresis and eddy current coupling module, time scale weights and instantaneous energy loss ratios are introduced to analyze the combined loss factor of eddy current and hysteresis effects, achieving adaptive allocation of their weights and performing primary compensation on the current signal. A temperature compensation module analyzes the temperature effect on the electricity meter and performs temperature compensation on both the voltage and current signals. This system can effectively handle complex dynamic operating conditions, ensure temperature stability of measurements, and cut off the transmission and accumulation path of errors at their source, improving metering accuracy under AC / DC mixed signals and ensuring the interpretability and reliability of the system.

This invention discloses an automatic detection and alarm system for electrical faults in generator sets, relating to the field of fault detection technology. By constructing a multi-module collaborative system consisting of signal acquisition, energy calculation, dynamic threshold generation, spectral feature extraction, waveform morphology recognition, comprehensive judgment, and alarm response, it integrates instantaneous energy, spectral disturbance characteristics, and non-periodic waveform morphology characteristics. Employing multi-dimensional feature fusion and intelligent discrimination algorithms, it effectively solves the problems in existing technologies where high-impedance faults are easily misjudged by low-frequency interference, leading to system passivation and missed fault detection. It achieves intelligent identification and real-time alarm for high-impedance electrical faults with high sensitivity, low false alarm rate, and graded response, significantly improving the operational safety and maintenance efficiency of generator sets in complex industrial environments.

The invention discloses a distributed photovoltaic system DC arc fault identification method and system, a medium, equipment and a product, and belongs to the technical field of DC arc fault identification. The method comprises the following steps: carrying out data preprocessing on collected current data, and carrying out feature extraction on the preprocessed current data by utilizing a Teager energy operator to obtain an instantaneous energy change feature sequence; performing sliding window processing on the instantaneous energy change characteristic sequence, and calculating a mean value, a standard deviation and a dynamic threshold th1 of numerical values in each time window; if th2 numerical values in continuous n numerical values are greater than a dynamic threshold value th1 in the instantaneous energy change characteristic sequence, it is judged that direct current arc is generated, and otherwise, it is judged that the state is normal. According to the method, local nonlinear energy analysis is carried out on the current time domain signal, arc detection is realized in combination with the adaptive threshold, and the method has the advantages of high operation efficiency, low false alarm rate, high real-time performance and the like, and is suitable for a distributed photovoltaic system.

The application relates to a high-transmission-ratio electric grab and a control method thereof, and effectively solves the problems of increased friction loss, low energy conversion efficiency, poor transmission, fixed transmission ratio and wasted energy consumption of a traditional electric grab; the technical solution comprises the following steps: the high-transmission-ratio electric grab and the control method thereof are provided with a magnetic transmission module, a hydraulic impact module and a self-adaptive control system, the magnetic non-contact transmission can greatly reduce the friction loss and reduce the maintenance cost, the magnetic transmission module can drive the hydraulic impact module to realize instantaneous energy release, thereby effectively improving the transmission of the electric grab and reducing energy loss; the self-adaptive control system can detect the magnetic field intensity and the hydraulic pressure, thereby fusing and calculating the load torque, and the linear driving mechanism can be used for real-time dynamic adjustment of the magnetic gap, so that the impact frequency of the electric grab can be dynamically adjusted according to the load condition, different working conditions can be adapted to, and the energy consumption can be effectively reduced.

The invention discloses a real-time measurement system for the use process of a high-energy-efficiency distribution transformer. The real-time measurement system comprises a data acquisition module, a loss calculation module, an energy efficiency evaluation module and an optimization scheduling decision module, the invention relates to the technical field of power monitoring. According to the real-time measurement system for the use process of the high-energy-efficiency distribution transformer, an electromagnetic-mechanical-thermal multi-physics field coupling monitoring system is formed, abnormal vibration caused by looseness of an iron core is monitored and captured through vibration acceleration, insulation degradation caused by partial discharge is monitored through a discharge pulse signal of the distribution transformer, the loss calculation precision is improved, and the real-time measurement of the use process of the high-energy-efficiency distribution transformer is realized. An iron loss-copper loss-stray loss three-level decomposition framework is adopted, the loss estimation precision is further improved, an instantaneous energy efficiency and accumulated energy efficiency two-dimensional evaluation framework is constructed, data support is provided for dynamic scheduling of the distribution transformer, long-term energy consumption analysis can be achieved without power failure, and the real-time performance of detection is guaranteed.

The invention discloses a plasma ignition circuit integration device adopting a dual-redundancy design, relates to the technical field of combustion chambers of gas turbines, and aims to solve the problems that an existing plasma ignition circuit adopting a multi-redundancy or dual-redundancy power supply is long in switching time and poor in current sharing precision. The device comprises a detection module, an intelligent selection module, a load balancing module and a super capacitor compensation module, the detection module is used for collecting state data of two power supplies, sending the state data to the load balancing module, generating a switching control signal according to the state data, and sending the switching control signal to the intelligent selection module; the intelligent selection module executes power supply switching based on the MOSFET switch according to the switching control signal; the load balancing module generates a trigger signal according to the state data and dynamically adjusts the output impedance of the double-path power supply to realize current balanced distribution; and the super capacitor compensation module provides instantaneous energy injection for the load under the action of the trigger signal.

The application discloses a kind of mobile power car and grid diesel generator protection method and system based on Teager energy operator.This method only utilizes power car machine end single-end measurement data, without relying on external communication or external CT.Through processing the collected voltage and current signals, the instantaneous energy value is calculated using Teager energy operator, and a multi-dimensional feature index is constructed to accurately distinguish and differentiate the faults inside and outside the vehicle.This method has small calculation amount and extremely fast response speed, can identify faults in the initial stage of short-circuit current rise, reduce the impact of faults on the generator, has strong anti-interference ability, can effectively shield the mis-trip caused by non-short-circuit disturbance of the power grid, and can also sensitively capture early minor faults inside the generator.

The invention relates to the technical field of data processing, and discloses a capacitor loss trend prediction method based on big data analysis, and the method comprises the steps: periodically collecting basic operation data in the operation process of a capacitor, dividing the operation stage of the capacitor in combination with the operation time of equipment, and constructing stage loss characteristics. On this basis, the instantaneous energy consumption is continuously accumulated to form an accumulated loss energy curve, and the loss growth rate and the acceleration are further introduced to identify whether the loss mechanism has structural change. Aiming at the difference between the abnormal mechanism interval and the stable interval, establishing a loss evolution trend model in the stable interval, predicting a future loss trend and a time point which may reach a design limit according to the loss evolution trend model, and calibrating abnormal data generated by interference. And classifying the operation risk of the capacitor by combining the residual loss capacity with the residual use time, and outputting an operation and maintenance processing instruction.

The present application provides a needle-free injection device, comprising a mechanical spring energy storage assembly, a seat force balance assembly, a closed-loop magneto-electric device adjustment assembly, an injector assembly and a circuit control assembly; the circuit control assembly is used to control the mechanical spring energy storage assembly to generate mechanical energy storage and instantaneous energy release; the seat force balance assembly is used to balance the seat force when the mechanical spring energy storage assembly releases the instantaneous energy; the closed-loop magneto-electric device adjustment assembly comprises a magnetic shaft and a coil on a magnetic shaft motor; the magnetic shaft is used to bear the impact force when the mechanical spring energy storage assembly releases the instantaneous energy and transmit the impact force to the injector assembly to inject liquid; the circuit control assembly adjusts the current of the coil according to the speed sensing signal of the magnetic shaft monitored by the coil to accelerate or decelerate the movement of the magnetic shaft. Through the design of the seat force balance assembly and the closed-loop magneto-electric device adjustment assembly, the present application can control the injection process, has low energy consumption, can solve the problem of the back seat force and has a small size.

The application discloses an AC-AC parallel operation converter based on virtual synchronous generator technology and belongs to the field of power electronic conversion.The application comprises a power conversion module, a voltage and current sampling module, a VSG control module, a bootstrap drive module and a chopper full-bridge AC-AC conversion module.The application introduces the VSG control module, realizes parallel current sharing through double closed-loop control composed of PR and PID, and widens the application scenario of the AC-AC topology;the instantaneous energy of input AC power is taken as the kinetic energy source of a virtual rotor, inertia and damping simulation in the pure AC domain is realized, unstable poor-quality AC power is converted into stable high-quality sinusoidal AC power of the same frequency, the output voltage can be accurately controlled within a certain range, and the application has the advantages of high-frequency electrical isolation, simple circuit topology, high conversion efficiency, low harmonic distortion rate, strong load adaptability and low cost.

This application relates to the field of power fault identification technology, specifically to a method and system for identifying ground faults in power grids based on zero-sequence electrical parameter signals. The method includes: acquiring various zero-sequence electrical parameter signals; decomposing the various zero-sequence electrical parameter signals, analyzing the similarity measure of amplitude distribution between each zero-sequence electrical parameter signal and its respective Infinite Motion Filter (IMF) component, and determining the noise influence characteristic value of each IMF component based on the disorder level of each IMF component; determining the peak distribution characteristic value of each IMF component based on the overall fluctuation characteristics of instantaneous energy intensity, and obtaining the noise influence coefficient of each IMF component; determining the wavelet denoising threshold for each layer of each IMF component; reconstructing all denoised IMF components to obtain filtered zero-sequence electrical parameter signals, and then performing ground fault identification. This application aims to improve the accuracy of ground fault identification.

The invention discloses refrigeration equipment and a power supply control method thereof.The power supply control method is used for switching a main power supply for supplying power to a load of the refrigeration equipment to a standby power supply, the refrigeration equipment is provided with an instantaneous energy compensation device connected to a load power supply bus, and the power supply control method comprises the steps that power supply of the main power supply and the load is cut off; the instantaneous energy compensation device is started, so that the instantaneous energy compensation device releases electric energy to the load power supply bus, and the voltage of the load power supply bus is maintained at a level higher than or equal to a preset first threshold voltage; when the voltage of the load power supply bus is maintained to be higher than or equal to a preset first threshold voltage, controlling the standby power supply to supply power to the load; and when the voltage on the load power supply bus is stabilized to be higher than or equal to a preset second threshold voltage level, the instantaneous energy compensation device is controlled to stop working and enter a standby state, and the second threshold voltage is higher than or equal to the first threshold voltage.

This invention relates to a method for calibrating the arrival time of traveling wave fronts (TWF) in distribution networks based on ISSA-VMD-MTEO, comprising: extracting line-mode traveling wave signals; constructing a parameter optimization model for variational mode decomposition to obtain the optimal parameter combination; obtaining several intrinsic mode components; constructing a traveling wave instantaneous energy sequence; and calibrating the corresponding time as the initial arrival time of the traveling wave TWF at the fault based on the energy mutation characteristics in the instantaneous energy sequence. The beneficial effects of this invention are: by introducing an improved sparrow search algorithm, this invention adaptively optimizes the number of modes and penalty factor in VMD, avoiding manual parameter selection based on experience, and improving the algorithm's adaptability under different fault conditions.

The invention discloses a multi-pile cooperative pulse energy storage type electric vehicle charging station and a vehicle-mounted energy supplementing system, relates to the technical field of electric vehicle charging, and aims to solve the problems that an existing fast-charging large current damages a battery, the power grid load is large, the standby energy consumption of an energy pre-storage pile is high, and the energy supplementing efficiency is low. The system comprises a cooperative cluster composed of 6-8 lightning pulse charging piles and a vehicle-mounted instantaneous energy storage and supplement device. Zero-energy-storage low-voltage standby is achieved when the charging pile is free of a vehicle, and the power consumption of a single pile is smaller than 10 W; after the vehicle is connected, all the piles store energy synchronously, then pulses with the peak value of 1000-2000 A are released in sequence, and the total discharge capacity is 60-80 kWh; the vehicle-mounted device latches all electric energy, the vehicle can be driven away immediately, and the battery is slowly charged with the small current of 20-50 A in the driving / parking state; according to the invention, the energy complementation of the whole vehicle can be completed within 8-10 minutes, the service life of the power battery is prolonged by more than 30%, the average power of a single cluster is only 640kW, the standby energy consumption problem of the pre-energy-storage pile is thoroughly solved, and the decoupling of the charging speed and the service life of the battery is realized.

The present application relates to the field of power system, specifically relates to a kind of energy storage dynamic optimization scheduling method, system and storage medium of power system, the method includes S1: establishing energy storage dynamic calculation model: S2: based on host energy efficiency curve and load rate high efficiency interval, control the operation capacity of host energy storage time: S3: respectively establish the energy consumption model of water chiller unit, air source heat pump, water pump, cooling tower, consider operating condition and environmental parameter correction, calculate the instantaneous energy consumption under different operating conditions;S4: output energy storage device utilization, maximum regulation power, average regulation power, maximum regulation capacity proportion, cumulative regulation power proportion, carry out quantitative evaluation.The present application can identify power system supply and demand state change in real time / quasi real time: valley load, flat section load, peak load, sharp peak load and the like, adjust the period and power of energy storage and energy release, realize the dynamic power distribution of host in each load period, improve the overall energy efficiency level and operating stability of system.

The invention discloses an acoustic diagnosis method for early warning of thermal runaway of a power battery. Relates to the field of battery energy storage safety monitoring. According to the method, an attached electronic stethoscope is arranged on the outer side of a battery to serve as a single acoustic sensor, and original sound signals in the battery running process are collected; carrying out direct current removal, band-pass filtering and normalization preprocessing on the sound signal; selecting a background noise segment in an initial or static stable working condition, calculating a background energy threshold and setting an energy upper limit; instantaneous energy is calculated by adopting a sliding window, the instantaneous energy is added to an acoustic energy integral AEI only when window energy is met, and early warning is triggered at the moment; wherein the integral alarm threshold value is obtained in a self-adaptive mode according to the robust statistic of the background section and is used for avoiding accidental strong impact false triggering. The method is simple to deploy and low in cost, can realize early warning in advance when weak events such as swelling, micro gas permeation and initial side reaction occur, and has the capability of resisting environmental noise interference and good generalization.

The application discloses a low-temperature plasma arc starting system and an arc starting method, and belongs to the technical field of medical devices. A system main power module outputs a direct current voltage signal to a full-bridge output module, a controller controls a full-bridge driving waveform generating circuit to modulate an adjustable direct current voltage signal into a pulse signal with a predetermined pulse width, the full-bridge output module converts the pulse signal with the predetermined pulse width into a square wave pulse signal and outputs the square wave pulse signal to a resonant power amplifier module, and the resonant power amplifier module boosts the square wave pulse signal and outputs a predetermined resonant pulse signal to a load. Compared with a traditional sine wave output arc starting mode, the low-temperature plasma platform arc starting system and the arc starting method can greatly shorten the time from a wave peak to a wave trough in one period, significantly improve the energy concentration degree and the size of instantaneous energy, solve the problem of low arc starting probability under the condition of non-contact tissue when the electrode is in the sine wave output, and do not increase the cost of redundant hardware, so the method is easy to popularize and apply.