597results about "Motors" patented technology

The invention provides a multifunctional cycle power generation system and method by a gravity lever. The system comprises a supporting rack and a balance weight arranged on the supporting rack and slidably matched with the supporting rack, wherein engines are arranged on one side or two sides of the balance weight; the input shaft of each engine is connected to a transmission shaft; two or more single-directional clutches are fixedly connected to the middle of the transmission shaft; the locking directions of the single-directional clutches are same, gears are fixed to the peripheries of thesingle-directional clutches, and a rack matched with each gear to drive the transmission shaft to rotate is arranged next to each single-directional clutch; at least one pair of racks is arranged on the upper part and the lower part, separately, the racks and the balance weight which reciprocates are in driving movement and the balance weight is arranged on the supporting rack to swing through a lifting mechanism in a reciprocating manner. As the balance weight which swings in the reciprocating manner pulls the racks to drive the transmission shaft to rotate in the single direction, multiple engines can be driven synchronously to generate electricity synchronously, and the power needed by a supporting rack lifting device is alleviated greatly by means of a swing mode like to a lever, so that the energy sources are saved and the power generation efficiency is improved greatly.

The invention discloses a photovoltaic-driven IDC electric-cooling linkage method and device, and belongs to the technical field of IDC electric-cooling linkage, and the method comprises the following steps: S1, constructing a gravity energy storage structure; s2, the gravity object is lifted to the highest point of the gravity object channel through the gravity energy storage structure; s3, air at the bottom of the gravity object channel is compressed for the second time, and a thermal cracking reaction is carried out; s4, thermal cracking gas generated by the thermal cracking reaction is drained, and combustion products are discharged into a gas storage chamber; s5, the generated steam waste heat pushes a turbine in a turbine chamber to do work for power generation; and S6, domestic hot water and night heating hot water are prepared, convective heat exchange is conducted, the low-temperature reclaimed water obtained after heat exchange is heated into high-temperature steam in a cooler, the high-temperature steam enters a turbine to become high-temperature reclaimed water, and the high-temperature reclaimed water flows into a control center or a water storage pool. The organic matter compressed garbage is used as a gravity object for gravity energy storage, and heavy oil, solid fuel, adsorbents and other high-value products are produced in the gravity energy storage process.

The invention relates to a generation power control method, device and equipment of a slope type gravity energy storage system, a storage medium and a program product, and relates to the technical field of gravity energy storage. By adopting the method, the generated power stability of the slope type gravity energy storage system can be improved. The method comprises the following steps: according to power generation request power and unit output power of the slope type gravity energy storage system, determining the current demand number of generator sets; the current generator set is a power generation device comprising two rails; selecting a target number of trucks to be in place on a high-altitude platform of the slope type gravity energy storage system according to the demand number of the current generator set; in response to a power generation starting signal of the slope type gravity energy storage system, according to the truck acceleration control principle, a variable parameter mode is adopted, and the truck is controlled to slide down at wrong time; responding to a power generation stop signal of the slope type gravity energy storage system, and when it is recognized that all the truck slides down and stops on the low-altitude platform of the slope type gravity energy storage system, power generation is ended.

The utility model discloses a rail type gravity energy storage built-in power station which is arranged under parallel rails, two rows of driving plates are arranged at the bottom of a rail train, the power station comprises a box body, a supporting base and two groups of power generation assemblies arranged on the supporting base, and each power generation assembly comprises a friction wheel, a transmission piece, a power generator and a power storage device. The friction wheels are arranged on the top of the supporting base in a sliding mode through friction wheel seats, the two generators are longitudinally arranged on the two sides of the supporting base, the generator on each side is in transmission connection with the friction wheel on the same side through a corresponding transmission piece, and the friction wheel seats are further connected with mechanical tensioners. And the friction wheel and the driving plate are in compression friction connection under the action of the mechanical tensioner. According to the utility model, the power station is arranged in the track and is vertically mounted, so that the occupied width of the power station in gravity energy storage is reduced, and the geographical adaptability of track arrangement is improved.

The invention discloses a vertical gravity energy storage system and a working condition operation control method thereof, and the system comprises a transmission component which is suitable for ascending or descending at a vertical height; the bearing device is suitable for bearing the mass block, and the bearing device is movably connected with the transmission component; the hovering mechanism is connected with the bearing device; the material conveying module comprises an upper conveying module and a lower conveying module; the control module is in communication connection with the hovering mechanism, the bearing device, the upper conveying module and the lower conveying module so as to control the hovering mechanism to hover to the top or the bottom of the transmission component, synchronously control the bearing device to be separated from the transmission component and control the upper conveying module to assemble and disassemble the mass block on the bearing device when the hovering mechanism hovers to the top or the bottom of the transmission component. And when the hovering mechanism hovers at the bottom, the lower transmission module is controlled to load and unload the mass block on the bearing device so as to complete the charging working condition and the discharging working condition. The device does not need to be shut down in case of failure, so that unnecessary loss is reduced.

A modular pumped storage hydropower system may include a shaft having a first end located opposite a second end. A reservoir is connected to the first end of the shaft. The second end of the shaft is configured to be located under a surface of ground. The second end of the shaft has a first compartment and a second compartment. The first compartment retains a pump assembly having an inlet in hydro communication with the second compartment. The second compartment is configured to retain water. A pipe has a first end connected to the pump assembly located opposite a second end extending through a cover of the first end of the shaft. The second end of the pipe is in hydro communication with the reservoir. The pipe of the pump assembly transfers water from the second compartment of the second end of the shaft to the reservoir.

The invention relates to the technical field of linear motors, in particular to a T-shaped mover linear motor with a self-lubricating function, which comprises a rack and a mover motor, a load platform is mounted at the top of the mover motor, and guide blocks which are symmetrically distributed are fixed on the inner wall of the load platform; guide grooves which are symmetrically distributed and matched with the guide blocks are formed in the side wall of the rack, oil storage cavities which are symmetrically distributed are formed in the load platform, oil outlet holes are formed in the guide blocks in a penetrating mode, one end of each oil outlet hole is communicated with the corresponding oil storage cavity, and an oil storage tank is arranged on one side of the rack and connected with an automatic oil supplementing mechanism. Wherein an oil supply mechanism is arranged in the oil storage cavity; according to the linear motor, in the reciprocating motion process of the rotor, the oil supply mechanism can continuously discharge the lubricant in the oil storage cavity from the oil outlet hole and uniformly smear the lubricant on the surface of the guide groove to achieve self-lubrication, the automatic oil supplementing mechanism automatically supplements the lubricant to the oil storage cavity, manual intervention is not needed in the whole process, and the stability and maintenance-free performance of equipment operation are remarkably improved.

The invention relates to a generation power control method, device and equipment of a slope type gravity energy storage system, a storage medium and a program product, and relates to the technical field of gravity energy storage. By adopting the method, the flexibility of the output power of the slope type gravity energy storage system can be improved. The method comprises the following steps: determining power generation distribution power of each current available power generation unit according to a total power generation power instruction and the number of the current available power generation units; according to the power generation influence factors and the power generation distribution power, the target speed per hour of the truck in the constant-speed gliding stage is determined; according to the target speed per hour and a preset acceleration condition of the truck, the accelerated gliding time of the truck is determined, and according to the accelerated gliding time, the decelerated gliding time of the truck is determined; and in response to a power generation starting signal for the slope type gravity energy storage system, according to the target speed per hour, the accelerated gliding time and the decelerated gliding time, multiple batches of trucks in each current available power generation unit are controlled to glide on the high-altitude platform of the current available power generation unit in sequence.

The invention discloses a rail train gravity energy storage system which comprises a low-position storage yard, a high-position storage yard, a transport train, a train rail, a driving device, a power generation device and a transfer device. The train track comprises an upward track, a high-position running track, a downward track and a low-position running track which are sequentially connected to form an annular track; a height difference exists between the low-position storage yard and the high-position storage yard; the ascending rail is provided with an ascending section, the ascending section ascends step by step at the altitude, the multiple driving devices are arranged along the ascending section at intervals, and the distance between any two adjacent driving devices is smaller than or equal to the train length of the transport train. The descending rail is provided with a descending section, the altitude of the descending section is decreased step by step, the multiple power generation devices are arranged along the descending section at intervals, and the distance between any two adjacent power generation devices is smaller than or equal to the train length of the transport train. According to the rail train energy storage system, by arranging the ascending section ascending step by step and the descending section descending step by step, the operation stability and the operation efficiency of the whole system can be improved.

The invention provides a hybrid energy storage cooperative control method and apparatus. The method comprises the steps of obtaining an actual value, a rated value and a frequency change rate of a power grid frequency; dynamically adjusting the initial virtual inertia coefficient by adopting an improved Sigmoid function based on the frequency change rate, and generating a dynamic virtual inertia coefficient; dynamically adjusting the initial droop coefficient by using the same function according to the deviation between the actual value and the rated value of the power grid frequency to generate a dynamic droop coefficient; calculating a power reference value of electrochemical energy storage according to the dynamic virtual inertia coefficient and the dynamic droop coefficient; based on the difference value between the power reference value and the power demand of the power grid, determining the number of weight blocks needing to be put into gravity energy storage; and controlling the gravity energy storage unit to output corresponding power according to the determined input quantity of the weight blocks so as to realize the stability of the power grid frequency. The core of the invention lies in determining the input amount of the weight block through the power difference value, thereby regulating and controlling the gravity energy storage output, and guaranteeing the stable power grid frequency.

The present invention discloses an electrical energy generating apparatus comprising a pendulum-type structure (100), which includes an arm (101) having permanent magnets (103a, 103b) at end thereof, held in a support frame; a pair of magnetic modules (300a, 300b) disposed adjacent to each extremity of the pendulum swing and provided with pulse-based electromagnets (302a, 302b) housed within a magnetic block (301), triggered by sensors (400a, 400b) to facilitate said pendulum swing motion; said sensors (400a, 400b) associated with each of the modules (300a, 300b) configured to detect a presence of the permanent magnet (103a, 103b); a drive shaft (500) transmitting drive to a gear assembly (600), said shaft configured for rotation dependent upon motion of the pendulum-type structure (100); and a flywheel assembly (700) operatively connected to the gear assembly (600).

In order to solve the problem that the gravity of the existing moving automobile cannot be converted into the traction force of the automobile, the automobile gravity conversion device comprises hubs of symmetrical baffles which are connected on the circumferential cambered surface, and two semicircular inner tubes which are not communicated with each other in air pressure, and the two semicircular inner tubes are respectively communicated with an air cylinder; the two air cylinders are symmetrically and oppositely arranged and fixedly installed in the hub, pistons in the two air cylinders share a rack connecting rod and are meshed with a sector tooth swing rod with a rotating point fixedly installed on the hub, the sector tooth swing rod is hinged to a connecting rod, the connecting rod is hinged to an L-shaped rotating rod, the rotating point is assembled on the bottom face of the hub, the L-shaped rotating rod penetrates through the hub, and a gear is fixedly installed at the inner end of the L-shaped rotating rod. Therefore, the two half inner tubes alternately and indirectly touch the ground due to rotation to generate'air pressure difference ', and a piston in the cylinder reciprocates to be linked with a gear for transmission, so as to assist the running of an automobile in advance of the power of an engine.

The invention discloses a device for converting a gravity block in a gravity energy storage system from horizontal transportation to vertical transportation, which comprises the gravity block, a horizontal gear transportation system, a lifting system, an electric motor or servo motor drive adopting a chain, a ball screw or a spiral lifting structure, and an interface conversion structure comprising a slide rail, a guide rail or a roller device, the automatic docking mechanism provides a function of automatically adjusting the position of the gravity block at a switching position and ensures that the gravity block is accurately connected into the lifting system; the buffer device is used for absorbing impact and vibration in the transmission process and improving the stability in the conversion process; and the control system monitors and adjusts the operation mode in real time. By keeping the smoothness of the transportation system, the operation efficiency and the energy utilization rate of a power system are improved, and meanwhile the power supply cost is reduced.

A method of storing and delivering energy is disclosed. The method provides vertically lifting the load with the gripper from a second position to a first position, or lowering the load from the first position to the second position. Further, moving the gripper with a trolley is configured to move horizontally whether or not the gripper is positioned within the trolley. Next, the according to the method a rope operably coupled to the gripper and the trolley to allow the trolley to move horizontally along the first position, and allow the gripper to lift or lower the load. Finaly, according to the method, at least one drive is actuated to move the rope along its length in a forward first direction or a reverse second direction, such that the movement of the rope in the forward first direction causes the gripper to lift the load from the second position to the first position and thereby charge the system, and the movement of the rope in the reverse second direction causes the gripper to lower the load from the first position to the second position and thereby discharge the system.

The application discloses a scale rod type mobile counterweight gravity power generation device and belongs to the technical field of power generation equipment. The system comprises a building frame, a plurality of groups of counterweight devices, a bottom locking device, a top locking device, a transposition driving mechanism, a transmission power generation device and a central control system. Each group of counterweight devices comprises left and right counterweight boxes and horizontally movable counterweight blocks, and the counterweight boxes slide along vertical guide rails in lifting pits. The main shaft of the transmission power generation device is connected with the left and right counterweight blocks through traction ropes, and the main shaft drives a generator through a speed increaser. The system operation logic is as follows: after the central control system controls the locking device to lock the counterweight boxes, the transposition driving mechanism drives the counterweight blocks to horizontally move to change the torque at extremely low energy consumption, and after being unlocked, the top counterweight box falls to drive the main shaft to rotate and generate power. A plurality of groups of counterweight devices are operated in turn under staggered peak time control, so that continuous and stable power generation is realized. The application can establish a torque difference through static horizontal transposition, has high energy conversion efficiency and can be stably operated in a large tonnage.

The invention discloses a gravity energy storage speed adjusting device and method, and relates to the technical field of gravity energy storage power generation, the device is arranged on a bearing vehicle running on a track, and comprises a speed measuring mechanism and a speed reducing mechanism, the speed measuring mechanism is used for detecting the running speed of the bearing vehicle on the track, and the speed reducing mechanism is used for reducing the running speed of the bearing vehicle; the speed reducing mechanism is used for reducing the running speed of the bearing vehicle on the track, the speed reducing mechanism comprises a supporting frame, a sleeve, a movable sliding seat, a brake pad and an adjusting assembly, the rotating speed of the generator is prevented from exceeding the limit through real-time speed adjustment, output electric energy frequency and voltage fluctuation are avoided, the impact risk on a power grid is eliminated, and the grid-connected reliability of the gravity energy storage system is improved. Through the characteristic that the pressure of the brake pad is adjustable, scenes such as local gradient sudden change or load fluctuation of a bearing vehicle can be dealt with, and the compatibility of the device to terrain and operation conditions is remarkably improved. Mechanical stress damage is reduced by avoiding overspeed operation of the generator, excessive abrasion is prevented by the pressure controllable design of the brake pad, and the full-life-cycle maintenance cost is reduced.

The pneumatic power device includes an annular gas storage vessel (1), a starting system, and an output system. A plurality of cylinders (2) are uniformly arranged around the inner wall of the annular gas storage vessel, and the cylinder body cavities of the cylinders are connected to the cavity of the annular gas storage vessel. The piston rods (3) of the cylinders are provided with racks (4). The starting system includes a power source, a drive unit (15), a speed reducer / torque increaser mechanism, and a cam (5). The power source is electrically connected to the drive unit, and the drive unit is power-transmittingly connected to the cam by the speed reducer / torque increaser mechanism. The piston rod ends of each cylinder abut against the cam. The output system includes a one-way transmission mechanism and an output shaft (10). The one-way gear (7) at the input end of the one-way transmission mechanism is meshed with the rack, and each rack is power-transmittingly connected to the output shaft by a one-way transmission mechanism. Only when the piston rods of the cylinders are extended does the rack and the output shaft rotate. The pneumatic power plant has little dependence on traditional fuels and effectively avoids dependence on thermal energy resources, reducing emissions, saving energy and being environmentally friendly, while at the same time solving the problems of energy crisis and air pollution.

A work vehicle includes a hybrid transmission (4) configured to vary power from an engine (5) and output the power to a travel device, the hybrid transmission (4) including an electric transmission portion (11) including a motor generator (21, 22), and a gear transmission portion (12) including a gear driving mechanism (18, 19, 20, 23, 24, 25). The work vehicle includes an inverter (45) configured to drive the motor generator (21, 22). The work vehicle includes a pump (15) configured to cool the inverter (45) by supplying, to the inverter (45), a refrigerant for cooling the motor generator (21, 22).

To provide a rotary electric machine system in which a rotor is efficiently cooled by lubricating oil.SOLUTION: A rotary electric machine system includes a rotor having a permanent magnet and a rotary shaft 40. The rotary shaft is supported by a rotary electric machine housing via a first bearing 74 and a second bearing 84. A first oil supply passage for supplying the lubricating oil to the first bearing and the second bearing is formed in the rotary electric machine housing. Further, an in-rotor oil passage is formed inside the rotor. A part of the lubricating oil is diverted from the first oil supply passage and supplied to the in-rotor oil passage.SELECTED DRAWING: Figure 12

This application relates to a combined mechanical gravity energy storage system and design method for a hydropower station. The combined mechanical gravity energy storage system includes a pumped storage power station and a mechanical gravity energy storage system. The pumped storage power station includes an upper reservoir, a lower reservoir, and an underground powerhouse. The upper and lower reservoirs are located upstream and downstream of the dam body, respectively, and there is a predetermined height difference between them. The upper and lower reservoirs are connected to the underground powerhouse through water diversion tunnels, and the underground powerhouse is located inside the dam body. The mechanical gravity energy storage system includes a rotary hoist, a loading bin, a unloading bin, and gravity blocks. The rotary hoist is located on the top of the dam body, and the loading and unloading bins are located on the dam body, with a predetermined height difference between them. The rotary hoist can transport the gravity blocks back and forth between the loading and unloading bins.

In the kinetic energy recycling system, a power generation device is driven by a driving device which is in turn powered by a power storage component. A coupling component synchronizes first and second eccentric shafts of the driving device. With the design of the first and second eccentric shafts, gravity and inertia assist in the rotation of the first and second eccentric shafts, reducing the amount of power required from the driving device to operate the power generation device. An acceleration mechanism further improves the power generation efficiency of the power generation device. The generated electrical energy is delivered to a power output component through a conversion device, allowing the user to select the output voltage via the human-machine interface. The energy can be fed back to the power storage component, reducing energy loss, lowering operational noise, and enabling energy recycling for reuse.

The invention discloses a heavy object bearing vehicle for gravity energy storage, and relates to the technical field of gravity energy storage power generation, the heavy object bearing vehicle comprises a bottom plate and two wheel sets, the two wheel sets are arranged at the two ends of the bottom plate, each wheel set comprises a first support, a guide shaft and a track wheel, and the first supports are fixedly arranged at the bottom of the bottom plate; the guide shaft is fixedly connected with the first support in a horizontal state, the two rail wheels are oppositely arranged on the guide shaft, each rail wheel comprises a sliding sleeve, a wheel body and a wheel frame, the sliding sleeves are slidably connected with the guide shaft, the sliding sleeves are rotatably connected with the wheel bodies, the sliding sleeves are fixedly connected with the bottoms of the wheel frames, limiting sliding grooves are formed in the bottom plate, and the wheel frames are slidably connected with the limiting sliding grooves. The wheel carrier abuts against the groove bottom of the limiting sliding groove. The track wheel structure capable of adjusting the distance is arranged and matched with the adjusting mechanism, the distance between the wheels can be flexibly adjusted according to the actual conditions that mountain terrains in different areas are complex and diversified and the width difference of the tracks is large, and the bearing vehicle can adapt to the tracks of various specifications.

The invention provides a buoyancy auxiliary transmission module and a buoyancy auxiliary transmission system, which are implemented in water, and buoyancy difference is formed on two sides of a belt transmission mechanism of the buoyancy auxiliary transmission module by utilizing buoyancy to drive the belt transmission mechanism to work. In one or more rotation cycles of the belt transmission mechanism, the buoyancy can be effectively utilized to realize kinetic energy output, indirect output driving can be formed, and energy consumption of a direct driving source is further saved. According to the buoyancy device, the volume of the air cavity can be changed by changing the shape, the vertical direction of the buoyancy device is changed based on the dead weight of overall movable mechanisms such as the air storage cylinder, the piston rod and the auxiliary heavy body and resultant force formed by buoyancy generated by water on the buoyancy device, and the shape of the air storage cylinder can be automatically changed; and on the premise that the total mass is not changed, the volume of the discharged fluid is changed through form change, corresponding different resultant forces are obtained, and different motion states are generated in water.

A system for making blocks for gravity energy storage includes an extrusion press machine with a receiving chamber for receiving raw material, a compaction chamber and a pressing wall driven by a piston to push the raw material into the compaction chamber to compact the material to form a block. One or more of a top wall, opposite side walls and the pressing wall are moved away from the a center of the compaction chamber to allow the block to elastically expand prior to exiting the compaction chamber.

The present application relates to the technical field of energy storage power generation, in particular to a piston type gas power well energy storage power generation system and energy storage power generation method. The energy storage power generation system comprises a gas power well, a lifting well, a falling well, a piston assembly, an isolation device, a power generation device and a gravity block. The energy storage power generation system utilizes the characteristics that ammonia and hydrogen chloride are extremely soluble in water and have a large amount of dissolution, provides a power system that can be not limited by resources and natural conditions, and through the power system, the heavy object is lifted to store energy, and then through the heavy object with stored energy, the purpose of stable power generation is achieved; or power generation or power output is directly carried out through the power system. The system optimizes the power supply area, realizes the grid, miniaturization and unitization of the power supply area, avoids long-distance power supply between cross-regions, reduces power supply line investment and power supply power loss, and can increase or decrease power generation load at any time, and matches the power grid power consumption in real time.

The utility model relates to the technical field of gravity energy storage, in particular to a combined gravity block for a gravity energy storage system, which comprises a shell, a support plate and a cross support are arranged in the shell, the cross support is positioned at the bottom of the support plate, and the support plate and the cross support are horizontally laid at the bottom of the shell. The top of the supporting plate is fixedly connected with vertically-placed partition plates, the partition plates divide the inner space of the shell into a plurality of containing cavities, and the containing cavities are distributed in a latticed mode. Compared with the prior art, the total weight of the gravity block is dispersed into a plurality of unit weight blocks, the gravity block is filled with the unit weight blocks, and therefore the weight of the gravity block is reduced; during installation, only a plurality of unit weight blocks need to be filled into the shell, the total assembly of the weight blocks can be completed, the partition plates achieve ordered distribution of the unit weight blocks, the structural stability of the unit weight blocks is guaranteed, and transportation is facilitated while installation is convenient.

The invention discloses a generator set and a vehicle, the output end of an engine is connected with the input end of a generator, the output end of the generator is connected with the speed increasing input end of a gear speed increasing device, and the speed increasing output end of the gear speed increasing device is connected with a flywheel of a flywheel mechanism. Power of the engine can be transmitted to a flywheel of the flywheel mechanism through the generator and the gear speed increasing device, and the power is converted into rotation mechanical energy of the flywheel to be stored. The working rotating speed of the speed increasing output end of the gear speed increasing device is larger than that of the speed increasing input end, and the rotating speed of the flywheel and the stored energy are improved. The mechanical energy which can be stored by the flywheel is greatly increased so as to meet the energy supply requirement of a high-power vehicle, the space occupied by the gear speed increasing device and the flywheel is small, and the integration level of the vehicle can be improved while the energy supply requirement of the high-power vehicle is met. The technical problem that the vehicle integration degree is difficult to improve while the energy supply effect on the vehicle is guaranteed is solved to a certain extent.

A magnetic rotating mechanism has at least one layer structure. Each layer structure has at least one rotating arm (4), at least one securing base (14), a rotating axle (2), a top board (17), and a bottom board (15). The at least one rotating arm (4) is located between the top board (17) and the bottom board (15). The at least one securing base (14) is mounted on the bottom board (15). At least one permanent magnet is mounted on each one of the rotating arm (4) and the securing base (14). The permanent magnet on each rotating arm (4) has a magnetic pole direction parallel to the diameter direction of the rotating circle, and the permanent magnet on each securing base (14) has a magnetic pole direction parallel with an axle direction of the rotating axle (2).

The invention relates to the technical field of industrial bulk material conveying energy conservation, in particular to a coal blanking energy recovery system which comprises a blanking point receiving device, a compressed air unit, a multi-stage air pressure boosting and stabilizing module, an air generator and electric energy storage equipment which are sequentially arranged in the energy transfer direction. The compressed air unit is arranged at the downstream of the blanking point receiving device and comprises a piston cylinder body and a piston rod which reciprocates in the piston cylinder body; the multi-stage air pressure boosting and stabilizing module is connected in series on an airflow channel between the compressed air unit and the air generator; the inlet of the air generator receives stable high-pressure airflow, and the electric energy output end is connected with the electric energy storage device through a cable. Through high-efficiency conversion of mechanical-air pressure-electric energy and multi-stage cooperative regulation and control, high-efficiency and reliable recovery of transient and fluctuating impact energy is realized.

A gravitational energy storage system is provided that includes one or more tracks extending from a lower storage yard to an upper storage yard, a plurality of mass cars moveable along the track, a conveyance system comprising at least a first tether, and a first power module associated with the first tether to drive a respective one of the first tethers to move the plurality of mass cars from the lower storage yard to the upper storage yard, and to dispatch energy when the plurality of mass cars are moved from the upper storage yard to the lower storage yard.