8results about How to "Improve balance efficiency" patented technology

The invention discloses a small-size high-efficiency large-current lithium battery active equalization circuit and a control method thereof, the small-size high-efficiency large-current lithium battery active equalization circuit comprises active equalization modules which are connected in parallel between two connected battery cells, and each active equalization module is composed of four switching tubes and a group of resonance branch circuit which is formed by connecting an inductor and a capacitor in series; n-1 active equalization modules are needed for a battery pack composed of N battery cells. The LC series branch serves as an energy temporary storage unit to replace a traditional inductance type single inductor or capacitance type multiple capacitors, the number of elements is reduced, meanwhile, low-loss energy transfer is achieved through resonance characteristics, and the equalization scheme has the advantages of being small in size, large in equalization current, small in equalization energy loss between battery cells, high in efficiency and the like.

Embodiments of the present application provide a spring extension and retraction amount adjustment method and device, a storage medium and an electronic device, wherein the method comprises: determining a first driving torque peak value, a first average driving torque in a gate rod lifting process of a gate, and a second driving torque peak value, a second average driving torque in a gate rod falling process; determining a first torque difference value of the lifting process and the falling process based on the first driving torque peak value, the first average driving torque, the second driving torque peak value and the second average driving torque; determining a target state of a spring connected with the gate rod in the gate based on the first torque difference value; and adjusting the target extension and retraction amount of the spring based on the first torque difference value in a case where the target state indicates that the spring is in an abnormal state. Through the present application, the problem of low gate balance adjustment efficiency in the related art is solved, and the effect of improving the gate balance adjustment efficiency is achieved.

The utility model relates to an oiling agent delivery pump which comprises a pump body and a gear shaft. The pump body comprises an oil inlet, an oil outlet and a pressure regulating channel, the oil inlet and the oil outlet are communicated through the pressure regulating channel, the oil outlet is communicated with an oil path of oil-consuming equipment, and the pressure regulating channel is communicated with a low-pressure space of the oil-consuming equipment; and the pressure regulating channel is used for regulating the pressure in the pump body and conveying high air pressure to a low-pressure space of oil-consuming equipment so as to balance the pressure between the oil agent conveying pump and the oil-consuming equipment. According to the utility model, no extra corollary equipment needs to be added, and the pressure regulating effect is low in cost.

The application discloses a data balancing method and device, equipment and storage medium, and relates to the technical field of computers. The method comprises the following steps: performing hash processing on first samples and second samples in a data set, and mapping the first samples and the second samples into first hash buckets and second hash buckets; determining second samples matched with the first samples in the first hash buckets from second hash buckets adjacent to first hash buckets in the first hash buckets; searching in adjacent hash buckets in a counterfactual search process, reducing a search range, reducing a search amount, and improving search efficiency. Then, based on a feature relationship between the first samples and the second samples, third samples in the second samples are processed to obtain fourth samples. The labels of the fourth samples are consistent with the labels of the first samples, and data balancing is realized. Since the time required by the search process is shortened, the efficiency of data balancing is improved.

The application discloses a modular equalization circuit and a control method thereof. The modular equalization circuit comprises a power supply, a converter, a selection switch, a transformer, a rectifier circuit, a filter and a battery equalization circuit which are connected in sequence. The number of modules is N, the number of energy storage units in each module is M, and the number of the rectifier circuit, the transformer, the filter and the battery equalization circuit is N. The number of the selection switch is N+1. Two output ends of the converter are marked as A and B respectively, i represents the i-th module, when i is odd, the one end of the switch S i is connected with A, the other end of the switch S i is connected with the same name end of the primary side of the transformer T i . When i is even, the one end of the switch S i+1 is connected with B, the other end of the switch S i+1 is connected with the different name end of the primary side of the transformer T i . When i is even, the one end of the switch S i is connected with B, the other end of the switch S i+1 is connected with A. The application significantly shortens the equalization path, improves the equalization efficiency and has strong expansibility.

This application relates to an energy storage control device, system, and method. The energy storage control device includes: an energy storage module comprising multiple battery cells, configured to be connected to a frequency converter module and configured to receive power from the frequency converter module or discharge power to the frequency converter module; and an equalization control module connected to the energy storage module, configured to: acquire a first target battery cell during the charging phase of the energy storage module; acquire a second target battery cell during the discharging phase of the energy storage module; determine a first priority of the first target battery cell and a second priority of the second target battery cell based on the state information of each battery cell; and perform equalization processing on the first target battery cell and the second target battery cell based on the first priority and the second priority of the second target battery cell; wherein the battery capacity of the first target battery cell is higher than that of the second target battery cell. This energy storage control device can reduce energy waste.

The application discloses a battery power equalization method and device and electronic equipment. The method comprises the following steps: dividing a plurality of single batteries included in a target battery pack into a plurality of groups; determining a total power of each group corresponding to the plurality of groups, and a single battery power of the single batteries included in each group; determining an average power between groups of the plurality of groups based on the total power of each group corresponding to the plurality of groups, and the single battery power of the single batteries included in each group, and determining an average power within each group corresponding to the plurality of groups; and performing power equalization among the plurality of groups based on the average power between groups, and performing power equalization in the corresponding group based on the average power within each group corresponding to the plurality of groups. The application solves the technical problem of low efficiency of transferring the power of the single batteries due to long transfer time in the related art.

The utility model discloses a ground source heat pump balance system, including vertical hole, heat pump unit, end device and fin heat exchanger, and heat pump unit includes condenser and evaporator, and one end of end device is connected with condenser and evaporator respectively through valve, and the other end of end device is connected with first circulating water pump, and first circulating water pump is connected with condenser and evaporator respectively through valve, and the first port of vertical hole is connected with condenser, evaporator and fin heat exchanger respectively through valve, and the second port of vertical hole is connected with second circulating water pump, and second circulating water pump is connected with condenser and evaporator respectively through valve, the utility model discloses through heat pump unit and fin heat exchanger to guarantee the balance of ground source heat pump balance system, and through optimizing ground source heat pump balance system design, effectively regulate soil temperature, improve system operation efficiency, reduce energy consumption.