239 results about "Energy management unit" patented technology

A network system is provided. The network system includes: at least one component selected from an energy receiving unit receiving energy and an energy management unit managing the energy receiving unit. The energy receiving unit or the energy management unit receives energy rate related information; an energy usage amount or a usage rate of when the component is controlled on the basis of at least the energy rate related information is less than that of when the component is controlled without the basis of at least energy rate related information; if the energy rate related information is high cost information, a function of one component constituting the energy receiving unit is limited; and an operating time or an output of the energy receiving unit is adjusted in correspondence to the limited function of one component.

The invention discloses an energy management system for a fuel cell hybrid power motor vehicle. The system comprises a one-way DC/DC converter based on a DC/DC conversion module and cascaded with a fuel cell power generation system, a two-way DC/DC converter based on a DC/DC conversion module and cascaded with an accumulator, a two-way DC/DC converter based on a DC/DC conversion module and cascaded with a super-capacitor set, a brake resistor unit, an energy management unit, a voltage acquisition circuit, a current acquisition circuit and load interfaces. According to the requirements of a traction motor, the output characteristic of a fuel cell, and the electrical characteristics of an accumulator set and the super-capacitor set, braking energy is recovered. By the adoption of the energy management system based on the DC/DC conversion modules for the fuel cell hybrid power motor vehicle, the fuel cell works in a high-hydrogen-effect mode, the stage of charge of the accumulator is kept within a certain range, and the service life of the accumulator can be prolonged.

The invention discloses a range-extended electric automobile using a micro gas turbine generator set. The electric automobile comprises a power electronic converter, a vehicle-mounted charger, an energy storage device, an energy management unit, an overall controller, an electromotor, a speed changer, a micro gas turbine controller, the micro gas turbine generator set and a fuel tank; and under the control of the overall controller, the fuel tank supplies fuel to the micro gas turbine generator set, and the micro gas turbine generator set generates electricity to increase the running mileage of the vehicle. The ranged-extended pure electric automobile reduces the dependence on a charging foundation facility, can adapt to running of high-speed and suburb road conditions better, improves the adaptability of the vehicle, meanwhile diversifies the energy of the vehicle, is favorable for energy safety, and solves the refrigerating and heating problems of the pure electric automobile.

The invention discloses an intelligent control system for a microgrid. The intelligent control system for the microgrid comprises a microgrid energy management unit, a central control unit and a distribution type control unit, wherein the central control unit is respectively connected with the microgrid energy management unit and the distribution type control unit; the microgrid energy management unit is used for realizing the optimal energy matching of the mcrogid; the central control unit issues a command to the distribution type control unit according to the comprehensive operation control command of the microgrid energy management unit; and the distribution type control unit controls a power generation unit or an energy storage device. According to the intelligent control system for the microgrid, which is disclosed by the invention, the whole system is divided into different logic blocks, a system function is refined, and the system development and maintenance cost is greatly lowered.

The invention provides a stepwise utilization method of decommissioned batteries. The stepwise utilization method comprises decommissioned battery sorting, decommissioned battery grouping and formingan energy storage system by the decommissioned batteries. The invention further provides a stepwise utilization system of decommissioned batteries, comprising an energy storage system and an energy management unit for controlling the energy storage system to perform charging and discharging, the energy storage system is composed of a plurality of battery clusters with a working voltage of 570 to 832.2V, and each battery cluster comprises a plurality of battery packs connected in parallel; and each battery pack comprises decommissioned batteries connected in series, a PCS and a monitoring unit.According to the stepwise utilization method and system provided by the invention, the consistency problem of the decommissioned batteries is solved through string distributed architecture, which greatly simplifies the process, can not only refine the management of energy storage batteries, but also can ensure the battery consistency to the greatest extent. In addition, the long-term stable operation of the entire system can be ensured, and the safety and the service life of the energy storage system are also objectively improved; and meanwhile, the stepwise utilization cost is reduced by thestepwise utilization method and system provided by the invention, so that the stepwise utilization method and system provided by the invention can be widely used, promoted and applied.

The invention provides an isolated island microgrid real-time schedule energy management system which comprises an energy management unit, a real-time monitoring unit, a prediction control unit and a distributed unit circuit breaker. A microgrid comprises power generating units, a battery and a load, wherein the power generating units, the battery and the load are respectively connected with a power bus through a power converter. The real-time monitoring unit acquires the running state of each power generation unit and the battery. The prediction control unit predicts the output power and the load demand of each power generation unit according to current weather information data and historical load data. According to received microgrid running data and prediction result data, the energy management unit calculates the running state and the output power of each power generation unit of next time by taking the minimum system running cost as an objective function and safe system running as a constraint condition. Accordingly, the distributed unit circuit breaker controls each power generating unit to transmit power to a power grid. According to the invention, the influence of uncertain factors of weather conditions, load fluctuations and the like on the running of the system can be reduced, and the running reliability of the microgrid is improved.

The invention relates to a multi-energy management system, a device and a method thereof and can lead the multiple energies such as renewable energy, a stored energy and the like to be managed in an integrating way for providing for a load; wherein, the multi-energy management system comprises a bus for transmitting the renewable energy and/or the stored energy, a renewable energy device with renewable energy identification code, which is electrically connected wit the bus for producing the renewable energy, a stored energy device with stored energy identification code, which is electrically connected with the bus for storing the renewable energy into the stored energy, and an energy management unit which is electrically connected between the bus and the load for determining the energy-distribution flow direction of the renewable energy and/or stored energy used by the load according to the renewable energy and stored energy identification codes which are respectively input and the renewable energy and stored energy. The invention can carry out effective energy dispatching and management of a plurality kinds of energies.

In a smart energy management system linked with home network devices respectively installed in a plurality of households to manage the use of energy for each household, a location detecting unit detects location information or entry/exit information of a household member through recognition of an RFID tag carried by the household member connected with an RFID receiving device. An energy recording unit receives energy use details of the household, inputted from the home network device, and records the received energy use details together with the location information or entry/exit information of the household member. A pattern analysis unit analyzes an energy use pattern for the energy use details. An energy management unit provides the energy use details through the home network device as a result obtained by comparing the energy use detailed for each household or so that the household member recognizes the energy use pattern.

A network system is provided. The network system includes: at least one component selected from an energy receiving unit receiving energy and an energy management unit managing the energy receiving unit. The energy receiving unit or the energy management unit receives energy rate related information; an energy usage amount or a usage rate of when the component is controlled on the basis of at least the energy rate related information is less than that of when the component is controlled without the basis of at least energy rate related information; if the energy rate related information is high cost information, a function of one component constituting the energy receiving unit is limited; and an operating time or an output of the energy receiving unit is adjusted in correspondence to the limited function of one component.

A system and method for automatically controlling an energy apparatus using an energy modeling technique is disclosed. The energy management service system for managing the use of energy of each region may include an energy collecting unit to collect energy usage information of an energy apparatus consuming energy in a region through a remote metering server, an apparatus collecting unit to collect control state information of the energy apparatus through a home network device installed in the region to control the operation of the energy apparatus, and an energy management unit to determine an energy usage control factor based on the energy usage trend and to automatically control the operation of the energy apparatus based on the energy usage control factor.

The invention discloses a multi-energy multi-motor hydraulic excavator electro-hydraulic mixing driving system and a control method. The multi-energy multi-motor hydraulic excavator electro-hydraulic mixing driving system comprises a power battery, a super capacitor, an energy management unit, a power motor, a motor controller, a forerunner operating handle, a hydraulic energy accumulator, an oil tank, a hydraulic pump/motor, a plurality of electromagnetic reversing valves, a plurality of pressure sensors, an overflow valve, an open center six-way proportion direction valve, a boom cylinder and the like. According to the multi-energy multi-motor hydraulic excavator electro-hydraulic mixing driving system and the control method, the power battery, the super capacitor and the hydraulic energy accumulator serve as composite energy sources, the energy density is ensured through the power battery, the instantaneous large power of an electric driving system is provided or absorbed by the super capacitor, and the instantaneous large power of a hydraulic driving system is provided or absorbed by the hydraulic energy accumulator; and a power system is driven by the power motor and the hydraulic pump/motor in a collaborated and mixed mode, multiple power composite modes are achieved by fully utilizing the stepless speed regulating characteristics of the power motor and the hydraulic pump/motor, and thus the requirements for the power of various complex working conditions of a hydraulic excavator are met.

The invention provides a coupling hydrogen production system and a control method thereof and belongs to the technical field of new energy. The system comprises a control unit and further comprises an electricity generation unit, an energy management unit, a hydrogen production unit and a gas storage and supplement unit which are all connected with the control unit and connected with one another in sequence. The control unit detects and analyzes all working parameters of the electricity generation unit and the hydrogen production unit and controls actions of the energy management unit and the gas storage and supplement unit. Hydrogen produced by the hydrogen production unit enters into the gas storage and supplement unit to be stored, and the control unit controls the gas storage and supplement unit to supplement the hydrogen production unit with hydrogen if necessary. The control method involves three operation modes, that is, electricity is supplied only by a wind power generation device and a photovoltaic power generation device, electricity is independently supplied by a mains supply, and electricity is supplied by the mains supply, the wind power generation device and the photovoltaic power generation device simultaneously. The problem of the hydrogen purity of commercial hydrogen production equipment under the condition of a fluctuant intermittent power supply with a wide power range can be solved through the coupling hydrogen production system and the control method thereof, cost is low, safety is high, and stability is high.

The invention discloses smart clothing for collecting vibration energy. The smart clothing comprises a fabric, wherein a vibration energy collecting material is attached to the outer surface of the fabric; the vibration energy collecting material is orderly electrically connected with an energy storage unit and an energy management unit; the vibration energy collecting material collects energy by a piezoelectric way for collecting the vibration energy generated by environment vibration or object movement; the collected vibration energy is stored by the energy storage unit; and finally, a power supply is output by control of the energy management unit to supply power for an external electronic product. The smart clothing solves the problem of long-term or lasting supply of the power supply of a traditional battery by collecting the vibration energy, and simultaneously, solves the pollution problem of the traditional battery on the environment; the selection and preparation of the flexible material are better for selectivity on the environment vibration frequency; and limitation of the environment or an object in the vibration direction is not generated. The smart clothing has the advantages that the structure is simple, and the process cost is low, and has a wide application prospect.

The invention discloses a grid-connection type photovoltaic direct current microgrid system and an operational control method therefor. The microgrid system comprises a direct current busbar, a photovoltaic generation unit, an energy storage unit, a capacitor, a mains supply grid side, an energy management unit and a load; the photovoltaic generation unit is connected with the direct current busbar through a first one-way DC/DC converter; the energy storage unit and the capacitor are connected with the direct current busbar through a first bidirectional DC/DC converter and a second bidirectional DC/DC converter separately; the main supply grid side is connected with the direct current busbar through a bidirectional AC/DC converter; and the load is connected with the direct current busbar. According to the operational control method, the power supplies for the mains supply grid side, the photovoltaic generation unit, the energy storage unit and the capacitor are fully coordinated in terms of the power supply sequences and logics, so as to ensure the reliability of power supply and higher economic benefits.

The invention relates to a weak hybrid power system for thermoelectric conversion based on automobile exhaust, and a control method thereof, wherein the system comprises a thermoelectric conversion unit, an output energy storage unit, a power assembly unit and a finished-automobile energy management unit, wherein a hot end of a thermoelectric device in the thermoelectric conversion unit absorbs heat carried by high-temperature exhaust; a cold end thereof constructs a temperature difference of the cold end and the hot end by cooling action of cooled water to generate direct current electric energy; the output energy storage unit charges a storage battery by using power generation energy of the thermoelectric conversion unit or a B-ISG motor, and stores, or supplies power to automobile electrical appliances of +36V and 12V, and B-ISG; the power assembly unit controls operation states of an automobile engine, the B-ISG motor and a transmission system; and the finished-automobile energy management unit comprehensively manages and controls energy of the system under various working modes. According to the invention, waste heat exhausted by automobile exhaust can be effectively recovered and used so as to increase fuel economy of automobile engine, and be helpful to reduce discharge of automobile exhaust.

This invention discloses a hoist power system supplied by DC bus including a generator set, a supply and distribution system, a frequency conversion system and a speed regulation motor, in which, the supply and distribution system includes a large power commutation device, a DC bus and an energy management unit, the DC bus is parallel with a DC energy-storage device capable of supplying the conversion system at the same time, which includes several inverters connected on the DC bus, the speed regulation motor is a lifted motor, a jumbo motor or a trolley motor, in which, the lifted motor is converted to generator mode to store the re-generated energy source to an energy storage device when a lifted subject falls, the energy management unit controls the operation speed and generation volume of the generator set to realize real time match of output power and load power.

Disclosed herein are an apparatus and method for saving energy in a building. The apparatus for saving energy in a building includes an interface unit, a building information definition unit, an ontology representation unit, and an energy management unit. The interface unit receives the external and internal contexts and characteristics of the building from a building information provision module within the building. The building information definition unit defines the external and internal contexts and characteristics of the building as building information using a specific representation format. The ontology representation unit represents the building information in a form of an ontology model. The energy management unit selects an energy management service based on an ontology model corresponding to the current context and characteristics of the building received via the interface unit, and saves energy in the building based on the selected energy management service.

The invention discloses a fuel cell/lithium ion battery hybrid power energy management system used for an electric bicycle, which comprises an energy management unit, which controls a fuel cell system unit to charge a lithium ion batter unit, controls a hybrid power system to supply power to the external, and is electrically connected with the fuel cell system unit and the lithium ion battery unit respectively. The energy management system reliably clamps the output power of the fuel cell unit in real time, optimizes the output performance of the fuel cell system unit, estimates the under-voltage float charge voltage of the lithium ion batter unit in real time on the base of the working temperature of the lithium ion batter, avoids over charge of the lithium ion battery on the premise of reducing the capacity loss of the lithium ion battery, can improve the float charge safety of the lithium ion battery unit, and further improves the overall safety and the economy of the fuel cell/lithium ion battery hybrid power electric bicycle system.

The invention discloses a cubesat integrated power supply system comprising a solar cell array, an energy management unit, a voltage stabilization unit, a power distribution unit, a MCU controller, anenergy storage cell unit, a separation switch circuit, and a general electric interface unit; compared with the prior art, the MPPT function is integrated to the solar energy transition unit; a separation trigger power-up unit is fused in the power supply system; the electric interface employs a general standard PC104 slot; a low power single-chip microcomputer can gather and detect system states, and can realize information interaction with a spaceborne computer, thus optimizing the power supply system integral functions, and improving the system energy transition efficiency and reliability.

A data processing apparatus and methods are disclosed. The data processing apparatus comprises: data processing elements operable to process data; an energy management unit operable to generate energy management information indicative of an energy state of at least one of the data processing elements when processing said data; and logic operable to receive said energy management information and to generate energy management information items associating said energy state with the processing of said data. The information items can provide visibility of how the Energy State of the data processing elements vary in response to the processing of data. Providing this visibility of the Energy State can advantageously enable more detailed the energy management to be performed and the Energy State of the data processing elements to be optimized.

Provided is an energy management system which can increase the awareness of energy saving. The energy management system according to the present invention includes a home appliance A located in a home, an external portable terminal PT, and a center device SV connected to the home appliance A and portable terminal PT via internet NT. The home appliance A includes an energy management unit 3 and a display control device CV. The center device SV stores for each home the electricity usage at a main breaker Bs and at branch breakers Bmn that is transmitted from the energy management unit 3 of each home. In the center device SV, the ranking in terms of the electricity usage or a degree of a decrease of the electricity usage is made relative to other homes on the basis of the stored electricity usage. The ranking is made for each home and transmitted to the display control device CV of the corresponding home.

The invention provides an energy-storage management system based on a range-extended vehicle, and relates to the technical field of vehicle energy management. The energy-storage management system comprises a range extender unit set, an energy storage unit and a distributed energy management unit. The range extender unit set includes a plurality of range extender units, and is used for converting fossil energy or other kinds of internal combustion engine energy into electric energy. The energy storage unit is used for supplying power to a vehicle load and recovering the braking energy of the vehicle, and comprises a super-capacitor energy storage unit and a power battery energy storage unit. A first preset electric quantity value is set in the energy storage unit. The distributed energy management unit is configured to coordinately control the range extender unit set and the energy storage unit to provide a power source for the vehicle according to the load demand power of the vehicle and the charge state of the energy storage unit. According to the energy-storage management system, the energy conversion efficiency of the vehicle and the service life of a power battery are greatly improved and prolonged separately.

The invention discloses a pure battery vehicle energy management system and method. The energy management system comprises a position acquisition unit, a battery management unit and an energy management unit, wherein the energy management unit is in communication connection with the position acquisition unit and battery management unit, the position acquisition unit is used for acquiring station information of a current charging station and the station mileage between the current charging station and a next charging station, the battery management unit is used for acquiring permissible charging current and the current battery charge state of a vehicular battery, and the energy management system is used for calculating traction energy consumption needed by a train reaching the next chargingstation according to the station mileage, and calculating charging time of the train at the current charging station according to the traction energy consumption, the permissible charging current andthe current battery charge state. The charging time of the train at each station can be reasonably controlled, electric quantity is intelligently and accurately regulated and managed, halfway stop ofthe train due to electricity shortage is effectively avoided, and normal operation of lines is ensured.