Energy recovery efficiency exceeds 80% under full operating conditions, covering wide power fluctuationsA single energy storage technology is difficult to cope with complex energy fluctuations:
supercapacitors can quickly absorb instantaneous high power (such as energy from emergency braking) but have limited energy storage capacity; lithium batteries have large capacity but cannot withstand high-frequency and high-power impacts. Through an intelligent allocation strategy, HESC enables supercapacitors to handle instantaneous (millisecond to second-level) high-power charging and discharging (such as emergency braking and sudden loads), while batteries store continuous low-power energy (such as slow braking and long-term residual energy). This realizes efficient recovery in the full power range (from kW level to MW level) with a comprehensive efficiency of 80%-90%, far higher than that of a single technology (usually below 70%).
"Dual excellence" in response speed and energy storage capacity, adapting to complex scenarios
Fast response: Relying on the microsecond-level response characteristic of supercapacitors, HESC can capture "fleeting" energy (such as kinetic energy released within 0.5 seconds of a car's emergency braking, and potential energy from sudden braking of a crane), avoiding energy waste in the form of heat energy;
Sufficient capacity: Equipped with a battery system (such as lithium iron phosphate battery), it can store energy that lasts for a relatively long time (such as kinetic energy from 30 seconds of slow braking when a subway enters a station, and residual energy from the round-trip operation of an elevator) and release it stably when needed (such as starting and accelerating).
This "combination of fast and slow" characteristic enables it to adapt to the full range of energy recovery needs from "instantaneous pulses" to "continuous stability".
Prolonging the service life of core components and reducing the whole life cycle cost
Protecting batteries: High-frequency and high-power charging and discharging impacts are borne by supercapacitors, avoiding capacity attenuation of batteries caused by "overcharging and over-discharging" or "high-current impact" (the service life of lithium batteries will be shortened by more than 50% under charging and discharging at a rate above 10C), thus extending the cycle life of batteries by 2-3 times;
Reducing mechanical losses: Replacing part of mechanical braking (such as brake pads and brake discs) through energy recovery reduces friction losses. For example, in rail transit, the replacement frequency of brake pads can be reduced by more than 60%, and in industrial equipment, the maintenance cost of braking components can be reduced by 40%-50%.
Strong safety and environmental adaptability, suitable for harsh scenarios
Safety: Supercapacitors have no risk of combustion or explosion. The battery part is controlled collaboratively with supercapacitors through the BMS (Battery Management System) to avoid over-temperature and over-voltage, so the overall safety is better than that of pure battery systems;
Environmental adaptability: It has a wide operating temperature range (-30℃ to 65℃) and can operate stably in low-temperature (vehicles in northern winter, plateau rail transit) and high-temperature (industrial workshops, desert mining equipment) environments without complex temperature control equipment.
Rail transit field: "Main force" in braking kinetic energy recovery
Applicable scenarios: Urban rail transit tools such as subways, light rails, and trams. Their braking process (especially deceleration when entering stations) will generate a large amount of kinetic energy (the braking energy of a single train can reach hundreds of kWh), which is wasted as heat energy through resistors in traditional ways.
Application value: HESC can recover 60%-80% of the braking kinetic energy, which is stored and then used for train acceleration when leaving the station or power supply for on-board equipment. For example, after deploying HESC on a subway line, a single train saves 150-200kWh of electricity per day on average, and the annual electricity saving of the whole line can reach millions of kWh. At the same time, it reduces the wear of brake pads and lowers the maintenance frequency.
Commercial vehicles: Improving and economy
Applicable scenarios: Commercial vehicles with frequent starts and stops, such as buses, logistics heavy trucks, and port tractors. The instantaneous power generated by braking (especially emergency braking) can reach hundreds of kW. Traditional pure battery recovery has low efficiency and affects battery life.
Application value: HESC quickly absorbs emergency braking energy through supercapacitors and stores slow braking energy in batteries, comprehensively increasing the energy recovery rate to more than 70%. For example, after deploying HESC on electric buses, the driving range can be increased by 15%-20%, the battery replacement cycle can be extended to 3-4 years (originally 2-3 years), and the whole life cycle cost can be reduced by more than 25%.
Industrial machinery: Residual energy recovery and load balancing
Applicable scenarios: Industrial machinery with "high potential energy/high kinetic energy - braking" cycles, such as cranes, elevators, injection molding machines, and stamping equipment. For example, the potential energy when a crane lowers a heavy object after lifting and the kinetic energy during the up and down operation of an elevator are seriously wasted.
Application value: HESC can recover 50%-70% of the residual energy of such equipment, which is then used for the next start-up or auxiliary operation. For example, after deploying HESC on port gantry cranes, a single piece of equipment saves 80-120kWh of electricity per day on average, while reducing the heat dissipation pressure of braking resistors and lowering the energy consumption for workshop cooling.
New energy power generation: Buffering of fluctuating residual energy
Applicable scenarios: New energy equipment with strong volatility, such as small wind power (such as distributed wind turbines) and tidal power generation. Their output power often fluctuates frequently due to changes in wind speed and tides, and excess energy (such as instantaneous over-generated power) is difficult to be directly connected to the grid.
Application value: HESC quickly absorbs instantaneous over-generated power (second-level fluctuations) through supercapacitors and stores continuous residual energy (minute-level fluctuations) in batteries, which is then smoothly fed back to the grid, increasing the new energy absorption rate by 10%-15%.
