46results about How to "Optimize energy management" patented technology

The invention relates to a control method of work mode of a hybrid dynamic. A hybrid dynamical entire car control unit HCU comprises a motor administration module, a motor control unit MCU, a module signal of an input pattern administration module having request of quick start-stop, request of auxiliary drive, request of regenerative braking and generating electricity, request of idling and current motor state. When the fault detection module is subjected to fault management, the received signal is request signal of system protection, system fault signal and the current motor state. The output signal mainly comprises request mode, torque and speed. The hybrid dynamical entire car control unit HCU monitors and manages the working mode of the engine and motor, therefore the better energy management than the traditional vehicle is obtained. The most reasonable time and work mode are confirmed and the stable switch of motor work mode is ensured.

The invention discloses a series battery pack SOP (state of power) on-line estimation method and an application thereof. The method comprises the following steps: carrying out the recursion on-line recognition of battery parameters and a battery dynamic effect; carrying out the battery SOP calculation at a next moment based on voltage limiting; carrying out the battery SOP calculation at a moment after the next moment based on voltage limiting; carrying out the battery SOP calculation at the next moment based on current limiting; carrying out the battery SOP calculation at the moment after the next moment based on current limiting; and carrying out the battery SOP on-line estimation at the next moment and the moment after the next moment based on the integration of voltage limiting and current limiting. The method gives the consideration of the impact on peak power from battery voltage and current working windows, can achieve high-precision SOP single-step prediction and multi-step prediction at the same time, can effectively prevent a battery from being used indiscriminately in an actual operation process, and helps other related system achieve optimal energy management.

A method for managing the energy of a battery energy storage power station based on wind power prediction, the method comprising the following steps: acquiring the previous predicted value of wind power, a current actual wind power value, and the controllable state value and charging state value of each current energy storage unit; respectively calculating the upper and lower threshold characteristic values of wind power prediction based on the previous predicted value of the wind power; and modifying in real time the wind storage combined output control target via a finite-state machine control module, and determining the required value of the total power of a battery energy storage power station, the finite-state machine control module comprising an energy storage SOC finite-state machine and a wind power finite-state machine. The method considers the short-term predicted value of wind power in the strategy for a battery energy storage power station, thus realizing coordinated power control of the battery energy storage power station and optimal management of stored energy based on predicted wind power.

The invention provides a multi-mode hybrid power-composite transmission power transmission device. The transmission device comprises an internal combustion engine power system, a planetary gear assembly, an output member, a motor power system, a hydraulic transmission system, a clutch assembly and a brake assembly, wherein the planetary gear assembly comprises at least three planetary gear trains;the internal combustion engine power system is connected with the hydraulic transmission system; the output member is connected with the planetary gear assembly; the clutch assembly connects the internal combustion engine power system, the motor power system and the hydraulic transmission system to the planetary gear assembly; and the clutch assembly and brake assembly provide continuous transmission ratio between the internal combustion engine power system or/and the motor power system and the output member. By combining the structural design of the transmission device and a braking energy management system, the recovery and release of braking energy are realized and the energy utilization rate is improved.

The invention discloses an electric vehicle charging load prediction method considering space-time distribution. The electric vehicle charging load prediction method considering space-time distribution includes the following steps: 1) according to the trip occurrence quantity and the trip attraction of an existing traffic zone, utilizing a growth factor method to calculate the trip occurrence quantity and the trip attraction of a future traffic zone; 2) utilizing a traffic distribution prediction model to calculate traffic volume distribution among each traffic zone in the future; 3) through ashortest path method, covering all the roads, of the road network, with the OD data among all the traffic zones, and calculating the traffic flow on all the trip paths in the road network, and the traffic flow values of all the roads; and 4) inputting the original data of an electric vehicle, based on the traffic flow of each road, performing analog simulation on the trip path of the electric vehicle, and calculating the charging load of the electric vehicle during the charging period to generate a charging load curve of each charging station in the set time quantum in the future so as to provide data support for planning and operating of the charging stations so as to provide basis for space load prediction of the power distribution network.

The invention discloses a lithium battery state estimation method for a distributed energy storage system, and belongs to the field of lithium ion battery application. The method comprises the following steps: establishing a lithium battery health state estimation model based on deep learning by adopting a gated cycle unit recurrent neural network; estimating the state of charge of the lithium battery of the distributed energy storage unit management system in real time by adopting a second-order equivalent circuit model of the lithium battery in combination with an extended Kalman filtering algorithm; and synchronously updating the battery capacity and the lithium battery state-of-health estimation model in the lithium battery state-of-charge estimation process through information interaction. On the premise of not increasing system hardware cost, through information interaction, accurate lithium battery capacity is provided for SOC estimation; meanwhile, a training sample is providedfor a big data SOH estimation model; therefore, the estimation precision of the SOC and SOH of the lithium battery in the system is improved, and subsequent effective completion of energy managementand scheduling of the system is facilitated.

The invention aims to solve a problem of traction network voltage safety caused by instantaneous high power, short-time high energy and the like of urban rail transit traction braking energy. In combination with a characteristic that a super capacitor and a battery have very strong complementarity in performance, a hybrid energy storage system of a double-DC/DC converter framework formed by supercapacitor-battery parallel connection is used for recycling traction braking energy. A double-closed-loop control strategy based on train traction power feedforward is provided on the basis of traditional double-closed-loop PI control, a fuzzy inference system and a low-pass filtering method are combined to cooperatively control power distribution of an energy storage element, and optimal energy management of the hybrid energy storage system is achieved by controlling a power distribution proportion. In the invention, a voltage fluctuation of a traction network can be effectively inhibited, anenergy utilization rate is improved, power of the energy storage system is optimized by monitoring a state of charge SOC of the energy storage device in real time, phenomena of overcharge and overdischarge of the energy storage element are prevented, and overall performance and cost performance of the hybrid energy storage system are improved.

The invention relates to a composite energy storage power supply and a method for realizing stabilization of DC bus voltage through the composite energy storage power supply, and belongs to the technical field of the energy storage power supply. A battery and a super-capacitor are connected with DC/DC, and then DC/DC is connected in parallel with the composite power supply structure so that isolation of voltage of the lithium ion battery, voltage of the super-capacitor and voltage of a DC bus can be realized, energy storage units are flexibly configured, energy management is convenient, impact of high current to the battery can be effectively avoided and the performance of the composite power supply can be enhanced. According to the voltage stabilization control method, the advantages of high power density and long cycle life of the super-capacitor can be effectively exerted, and the service life of a composite power supply energy storage system can be prolonged. Meanwhile, voltage of the DC bus can be effectively stabilized by the voltage stabilization control method.

The invention belongs to the technical field of big data management and application, and discloses a water, electricity, gas and heat comprehensive data exception analysis method and system, a storagemedium and a terminal. Energy consumption load prediction, loss monitoring analysis, key area or customer optimal energy consumption analysis and comprehensive energy consumption analysis and strategy are carried out; the energy consumption habits of customers are portrayed in combination with the electricity consumption, the water consumption and the air consumption of the users, the customers are classified and graded according to the portraits of the users, energy consumption load prediction and loss monitoring analysis are carried out on the customers in key areas, and the purpose of refined loss management is achieved while the service efficiency of an energy supply enterprise is improved. An energy consumption client carries out energy consumption management and control through water, electricity, gas and heat consumption monitoring data and an energy consumption condition analysis report provided by an energy supply enterprise, so that the purposes of energy conservation and consumption reduction of the energy consumption client are achieved; public security and inspection departments discover and stop illegal criminal behaviors in advance and solve potential safety hazardsin advance through users with water, electricity, gas and heat abnormal data provided by energy supply enterprises.

The invention discloses a dual-disc clutch hybrid power assembly suitable for new energy vehicles, in which an engine, an elastic damping connector, a first motor, a double-disc clutch and a second motor are sequentially connected through coaxial; the second motor outputs The shaft is connected to the drive axle assembly; the energy storage power supply is electrically connected to the first motor controller, the second motor controller, and the vehicle controller; the first motor controller is electrically connected to the vehicle controller and the first motor connection; the second motor controller is electrically connected with the vehicle controller and the second motor respectively. The double-disc clutch of the present invention has no axial force generation for the motor and the engine, and has the functions of a clutch, a two-speed gearbox, impact overload protection, forward and reverse separation, non-powered intermittent speed difference shifting, and the like. It has quick switching response, high reliability, low energy consumption, and high efficiency; the energy output can be switched between the engine and the energy storage power supply according to the working conditions, and recycling can be realized, and the energy management matching is more reasonable.

The invention provides a dual battery pack vehicle energy management method, device, apparatus and storage medium. The vehicle comprises a first battery pack and a second battery pack. The vehicle energy management method of the dual battery pack comprises the following steps of: calculating a prediction value corresponding to an influence factor according to an influence factor of a second battery pack and an action function corresponding to the influence factor; calculating a total predicted value for replacing the second battery pack according to the predicted values of the n influence factors and the weight of the n influence factors; if the total predicted value is greater than the first threshold value, the second battery pack is predicted to be replaced within the first time periodthreshold value and the vehicle is brought into the first energy management mode. If the total predicted value is less than the second threshold value, it is predicted that the second battery pack will not be replaced within the first time period threshold value and the vehicle is brought into the second energy management mode. If the total prediction value is greater than or equal to the second threshold and less than or equal to the first threshold, the vehicle is maintained in a previous energy management mode. The system and method of the present invention optimizes energy management.

The invention discloses a hydrogen production and storage system, which comprises an electrolytic bath and a hydrogen storage device, and further comprises a heat storage power generation device, an oxygen storage device and a water storage device. The invention further discloses a multi-mode circulating hydrogen production method, which adopts the hydrogen production and storage system. According to the invention, a heat storage power generation device is introduced into a hydrogen production system and cooperates with renewable energy power generation to electrolyze water to produce hydrogen in an electrolytic cell, so that the problems of variable working conditions and frequent start and stop caused by the use of renewable energy in the hydrogen production process are avoided, and the adaptability of the PEM electrolytic hydrogen production system to the fluctuation characteristic of new energy is improved; according to the multi-mode circulating hydrogen production method provided by the invention, a method of coupling organic Rankine cycle power generation with renewable energy power generation is adopted, so that the power shortage of the input end caused by fluctuating renewable energy is filled up, and the productivity of a hydrogen production system is ensured; and the method and the system provided by the invention are simple and easy to implement, energy generated in the whole hydrogen production and storage system can be fully utilized, the economical efficiency of the whole system is improved, and the energy consumption is reduced.

The invention discloses a GPRS (General Packet Radio Service) remote transmission water meter collector, which comprises an external current power supply function module, an internal direct current power interface, a low power consumption power supply processing function module, an external power supply output interface, a MCU (Microprogrammed Control Unit) function module, a GPRS communication function module, a first communication interface, a second communication interface, a user operation interface, a first pulse acquisition interface and a second pulse acquisition interface. By use of the GRPS remote transmission water meter collector, the data acquisition and remote transmission of a large-caliber water meter/flowmeter can be effectively realized, the problem of difficulty in field meter reading is overcome, the labor intensity of workers is lowered, manpower and material resources are saved, the accuracy and the timeliness of meter reading data are improved, and convenience is brought to a water supply company to carry out pipeline analysis and energy consumption management after uniform data arrangement is performed.

The invention discloses an energy-saving production line for sheet jelly and relates to the technical field of production equipment for the sheet jelly. The energy-saving production line comprises thefollowing components: a primary pulp producing device, a cooling device, a drying device, a slitting device, a power device, a temperature regulating device and a production line casing, wherein thecooling device comprises a room temperature cooling part and a freezing part; the room temperature cooling part comprises a cooling conveying belt exposed in air; the temperature regulating device comprises a compressor positioned in an insulated freezer, a heating device positioned in an insulated drying box and a heat source device arranged in a heating cabinet; the production line casing surrounds the outer sides of the cooling device, the drying device and a heating tank. The energy-saving production line for the sheet jelly has the advantages that heat loss of drying the sheet jelly can be effectively reduced; meanwhile, power consumption of the whole production line of the sheet jelly is reduced, and dissipating heat which cannot be utilized can be recycled; meanwhile, the energy-saving production line has good product quality.

The invention belongs to the technical field of power generation ship power supply system test optimization, and provides a power generation ship power supply system test optimization platform. A power generation set model of the power generation ship power supply system is researched, after the power generation set model is checked in combination with an actual product characteristic curve of thepower generation ship power supply system, a high-precision power generation set simulation model is formed, and then, a power generation set test platform of the power generation ship power supply system is formed in combination with an actual power generation set controller; further, a power generation ship power supply system simulation model through configuration of the power generation shippower supply system is formed in combination with power grid parameters and load parameters; and then, an actual energy manager of the power generation ship power supply system is connected, and the power generation ship power supply system test optimization platform is formed. The platform provided by the invention can test whether system parameters of the power generation ship can satisfy national standards in steady state and transient state operating conditions, and can optimize energy management of the power generation ship power supply system and improve power supply safety and efficiency of the power generation ship power supply system.