60results about How to "Relieve power supply pressure" patented technology

The invention relates to a peak shaving control method based on an air conditioner aggregation model. The peak shaving control method based on the air conditioner aggregation model is characterized in that the peak shaving control method comprises the following steps that (1) a load model of single air conditioner is built according to the energy conservation principle and air conditioner running characteristics; (2) unified dispatch and control are conducted on air conditioner groups through load aggregators, the aggregation model of the air conditioner groups is built, and peak shaving potential of an aggregated air conditioner load is evaluated; (3) in the current market, a minimum electric power company dispatching cost is taken as the objective function, and dispatching plans of next-day peak shaving time periods are made; and (4) in the process of real-time dispatching, the profits of the load aggregators and the comfort level of users are considered together as a whole to achieve optimized control of the aggregated air conditioner load. According to the peak shaving control method based on the air conditioner aggregation model, the technical scheme achieves centralized dispatching control over the air conditioner groups, load-side resources are exploited sufficiently, and the investment pressure of power network facilities is relieved.

The invention discloses a method and system for orderly charging management of a charging pile. The method comprises the following steps: setting the maximum output power of a charging station; dividing the charging pile into two or more charging groups, setting the maximum output power T_P of each charging group and the principle of orderly charging; collecting output power, recorded as R_P of each charging group in real time; sorting the charging level of each charging pile in the charging group; according to the relationship between R_P and T_P, adjusting the output power of the charging pile according to the charging level of the charging pile until the output power meets the requirements. The method and system have the beneficial effects that the orderly charging strategy is used to better guide the power output of the charging equipment, the utilization ratio of the charging equipment is effectively improved, and the power supply pressure of the power grid is alleviated.

The invention discloses a load control method for realizing peak load shaving of a power distribution network. The method comprises the following steps of 1) obtaining a daily load curve according tothe actual operation conditions of a power grid; 2) for the obtained daily load curve, clustering the daily load curve through a fuzzy C-means clustering algorithm; separating a high energy consumption load curve and a heat storage load curve from the daily load curve; and 3) aiming at the high energy consumption load curve and the heat storage load curve in the step 2), transferring the high energy consumption load and the heat storage load to realize the load control of peak load shaving of the power distribution network. According to the present invention, (1) the problem solving mode is simple, and the engineering practical application is facilitated; and (2) by classifying the power loads, carrying out feature recognition on the high-energy-consumption loads and the heat storage loads, and carrying out controllable load transfer in the two loads, the peak load shaving of the power grid is realized; and (3) the power supply pressure of the power system in the second peak period iseffectively relieved, and meanwhile, a night power supply valley period load curve can be smoother.

The invention provides an electric vehicle distributed energy storage method, device and equipment and a medium. The method comprises the steps: receiving a parameter setting request initiated by a client, and setting the energy storage parameters of an electric vehicle unit according to the parameter setting request; receiving the rated maximum storage electric quantity and the current remainingelectric quantity percentage transmitted by the charging and discharging unit, obtaining the charging power value set by the charging and discharging unit, and calculating the charging time; the method comprises the following steps: acquiring a local power consumption peak period, performing power supply judgment on a power grid according to the power consumption peak period, checking idle electric vehicle units when the power grid is in the power consumption peak period, and issuing a power supply control instruction to a charging and discharging unit; and charging judgment is performed on the electric vehicle unit according to the current residual electric quantity percentage, the energy storage parameter and the electricity price time period, and a charging control instruction is issuedto the charging and discharging unit according to a judgment result. According to the invention, the power supply pressure of a power system in a power consumption peak can be well relieved, so thatthe electric energy of the electric vehicle is fully utilized.

The invention discloses a battery energy storage system, which comprises a battery system for storing electric energy, a battery management system and a bidirectional converter, wherein the battery management system is connected with the battery system and is used for acquiring voltage of the battery system and carrying out charging and discharging control on the battery system according to the voltage; and the bidirectional converter is connected with the battery management system and is used for converting AC input from a power grid into DC and converting the DC input from the battery management system into the AC to carry out charging and discharging control on the battery system through the battery management system. According to the battery energy storage system, the technical problemof relatively low system stability due to high peak load of an electric vehicle charging station is solved.

The invention relates to a comprehensive self-consistent energy microgrid configuration method based on hydrogen energy storage and an energy regulation and control method. An intelligent management and control system of a microgrid collects power-heat-cold energy consumption requirements of a microgrid load in real time, collects a real-time pressure intensity value of hydrogen in a hydrogen storage tank in the microgrid, and recognizes the relation between the microgrid and a power grid through an on-grid and off-grid judgment module; in an independent operation state that the micro-grid is merged into a power grid or the micro-grid leaves the power grid, the energy of the micro-grid is regulated and controlled by representing the energy storage capacity by using the real-time pressure value of hydrogen in the hydrogen storage tank, a result is judged based on the real-time pressure value of the hydrogen and a set hydrogen pressure boundary threshold value, whether wind power and photoelectricity in the micro-grid output power or not is combined, the micro-grid load cold and heat supply is jointly used as a constraint condition, and then a corresponding energy management and control strategy is started. On the basis of the wind and light prediction result and the typical daily load curve, instruction deviation caused by wind and light random and load fluctuation is adjusted and stabilized in real time according to the output of each unit in the day, and real-time balance of system energy and power is guaranteed.

The invention discloses an air conditioner, and a power supply system and a power supply method thereof, and relates to the field of air conditioners. The power supply system of the air conditioner comprises a storage battery and a power control unit, wherein the power control unit is used for charging the storage battery through a power grid in the electric energy trough time period of the power grid and controlling the storage battery to supply power to the air conditioner in the electric energy crest time period of the power grid and also controlling the storage battery to supply power to the power grid. By the additional arrangement of energy storage equipment in the power supply system of the air conditioner, energy storage can be executed in the electric energy trough time period, and the stored energy can be supplied to the air conditioner in the electric energy crest time period and also supplied to the power grid reversely, so that the aims of reducing peak and filling trough are fulfilled, and other loads can be considered by taking the air conditioner as a center; due to a self-sufficient small-size power energy center, the air conditioner is not single electric equipment any more and can be used as an energy support to form a power generation, electricity utilization and power storage all-in-one air conditioner.

A phase transformation cool storage air conditioner system comprises a refrigeration module, a heat preservation module, a temperature and humidity adjusting module, a control module and a communication module. A management method corresponding to the phase transformation cool storage air conditioner system is further provided. The phase transformation cool storage air conditioner system carries out the functions of the modules through software. The phase transformation cool storage air conditioner system has the beneficial effects of energy conservation and environmental protection, power supply pressure relieving, remote control, heath and intelligent planning.

The invention discloses an environment-friendly utilization method of a waste power battery of a new energy automobile. The method comprises the following steps of S1, screening waste power batteries,wherein the SOH of each screened waste power battery is not less than 50%; and S2, detecting the waste power batteries in Step S1, and recombining and integrating the waste power batteries meeting adetection standard to obtain a battery pack. The method is good in recycling effect.

The invention discloses a natural gas pressure regulation station and solar comprehensive power generation system. The comprehensive power generation system is composed of a solar heat collecting system, an ORC power generation system, a natural gas differential pressure power generation system, an automatic control system and the like. The solar heat collecting system, the ORC power generation system and the natural gas differential pressure power generation system are organically combined together to form a combined cycle power generation system. By the adoption of the combined cycle power generation system, the electrical loads can be adjusted to meet the power supply demand, the power supply pressure of a power grid is relieved, the problems that energy cannot be easily stored by a groove type solar photo-thermal power generation system at night, the temperature of natural gas is rapidly reduced in the pressure regulating process, and threats are caused to pressure regulation and pipeline equipment operation safety are avoided, and the cost input is reduced; and meanwhile the combined cycle power generation system can be continuously operated all over the year, so that the overall economic benefits of a project are improved.

The invention provides a power supply system, which comprises a first power supply station, a second power supply station, an energy storage component, a municipal power supply unit, a control unit and load, wherein the first power supply station is used for converting solar energy into electric energy; the second power supply station is a diesel generator; the first power supply station is connected with the energy storage component to store the electric energy into the energy storage component; the first power supply station, the second power supply station and the energy storage component are connected with the load to provide the load with electricity; the municipal power supply unit is connected with a utility grid and the load to provide the load with municipal power to provide the load with the electricity; the control unit communicates with the first power supply station, the second power supply station, the energy storage component, the municipal power supply unit and the loadto detect output power of the first power supply station, the second power supply station, the energy storage component and the municipal power supply unit and the power required by the load; and thecontrol unit controls the output power of the first power supply station, the second power supply station, the energy storage component and the municipal power supply unit according to the power required by the load.

The invention relates to a low-temperature type fuel gas heat pump air-conditioning system and a control method thereof. The low-temperature type fuel gas heat pump air-conditioning system comprises arefrigerant circulation loop which is composed of compressor, an oil separator, a four-way valve, an indoor unit heat exchanger, an outdoor unit heat exchanger and a gas-liquid separator which are connected in sequence. The compressor is connected with a fuel gas engine through a belt; a cooling water tank is disposed outside the fuel gas engine; the cooling water tank forms a cooling water circulation loop through a water pump and a radiator; an auxiliary evaporator is further included; a refrigerant side outlet pipe of the auxiliary evaporator is connected with the gas-liquid separator, anda refrigerant side inlet pipe of the auxiliary evaporator is connected to a pipeline between a second end of the indoor unit heat exchanger and a first end of the outdoor unit heat exchanger; the twoends of a water way of the auxiliary evaporator are connected with the two ends of the radiator correspondingly; and the first end of the outdoor unit heat exchanger is connected with an outlet of the oil separator. By means of the low-temperature type fuel gas heat pump air-conditioning system and the control method thereof, the effect of heating running of the system under the low temperature can be effectively improved, and the unfavorable influences caused by insufficient power supply can be avoided.

The invention discloses a distributed photovoltaic power station user side three-phase imbalance counter-current prevention device and method. The counter-current prevention device is composed of a rectified three-phase circuit, a bidirectional DC-DC conversion, an energy storage battery and a microprocessor connected in parallel at the load side; an incoming line end of the rectified three-phasecircuit is connected with an outgoing line end of a photovoltaic inverter, and the outgoing line end thereof is orderly connected with the bidirectional DC-DC conversion circuit and the energy storagebattery to form a charging main loop of the imbalance current; the outgoing line end of the rectified three-phase circuit is connected with the incoming line end of the inverter through a contactor switch so as to form a battery discharging loop; the microprocessor realizes the charging/discharging control on the battery by driving the rectified three-phase circuit, the contactor switch and the DC-DC circuit switch tube. The distributed photovoltaic power generation and the battery energy storage system are combined, the problem of the countercurrent power of the current caused by the three-phase load imbalance at the user side is solved by connecting the energy storage system in parallel at the load side, and the safe, stable and economic operation of the system is effectively guaranteed.

The invention discloses a distributed multi-power supply airport intelligent microgrid system, which comprises a distributed multi-power-supply module, an intelligent control module and a centralizedcontrol background, the distributed multi-power-supply module comprises a solar energy power supply sub-module, a wind power supply sub-module, a mobile energy storage power supply sub-module, a fixedenergy storage power supply sub-module, a local power grid power supply sub-module, a water conservancy power supply sub-module, a garbage power generation power supply sub-module and a diesel generator power supply sub-module. The intelligent control module comprises a solar power supply control sub-module, a wind power supply control sub-module, a mobile energy storage power supply control sub-module, a fixed energy storage power supply control sub-module, a local power grid power supply control sub-module, a water conservancy power supply control sub-module, a garbage power generation power supply control sub-module and a diesel generator power supply control sub-module. According to the invention, airport power quality can be effectively improved, electric energy is integrated and fully utilized, power supply pressure during peak hours of power utilization is relieved, reliability and safety of a power supply system are improved, and effective management of the airport power supply system is realized.

The invention discloses a novel energy-saving street lamp, and solves the problems of energy waste, short service life and potential safety hazards in the prior art. The novel energy-saving street lamp comprises a street lamp column provided with a cement foundation, a hollow street lamp support column, an illuminating lamp, a reinforcing rib pipe, a solar panel, a control box, a wind energy power generation support column, a micro wind driven generator, a wind cup, a microprocessor, an accumulator and a power supply plate; a radiator is arranged between the illuminating lamp and the street lamp support column; the radiator comprises an annular radiator body and a radiator wing; an inner ring of the annular radiator body communicates with an inner cavity of the street lamp support column; two or more ventilation holes for communicating with the inner cavity of the street lamp column are formed in the middle part of the street lamp column; a micro air blower is arranged in the inner cavity of the street lamp column; an annular collision preventing device is arranged at the top of the cement foundation; and the collision preventing device comprises a rubber layer and a sponge layer. The novel energy-saving street lamp is simple in structure, scientific and reasonable in design and convenient in use, saves the energy, protects the environment, can effectively eliminate potential safety hazards, can effectively prolong the service life of the illuminating lamp, and saves the use cost.

The invention relates to a multifunctional system tail end energy storing and releasing machine used in the field of heating, ventilation and refrigeration air conditioners. The multifunctional system tail end energy storing and releasing machine is composed of an energy accumulator, an air channel, a partition board, a heat insulating layer, a motor, a draught fan, an electric heating element and a telescopic calandria. The multifunctional system tail end energy storing and releasing machine can be installed independently for use and can also be connected with heating and cooling systems such as a household central air-conditioner, a large center air-conditioner system, a ground source, water source and air source heat pump system, an electric boiler system and a solar water heating system for use. Clean energy provided by night low electric energy, solar energy, ground source energy, water source energy, air energy devices and the like is converted into cold and heat energy to be stored, and then the purpose of accumulating energy at night and releasing energy in the daytime is achieved. Energy is accumulated in a room needing to be heated or cooled, energy consumption caused is fully and efficiently utilized by a user, energy waste is avoided, energy consumption loss is zero, and electric charge is saved. The multifunctional system tail end energy storing and releasing machine is mounted in a wall or in a ceiling of a room without occupying extra space, and is widely used in various buildings needing to be heated, air-conditioned and supplied with hot water.