CN-122026496-A - Energy management method, system and building

Abstract

The application relates to the technical field of energy storage, in particular to an energy management method, an energy management system and a building, wherein the energy management method is applied to a target building, water storage units are respectively arranged at different heights on the target building, the water storage units are connected through water pipelines, valves and hydroelectric generation units are arranged on the water pipelines, the method comprises the steps of determining whether the target building has an electric energy supplementing requirement according to the electricity consumption requirement and/or the power supply condition of the target building, and controlling the valves on the water pipelines between a first water storage unit and a second water storage unit to be opened if the electric energy supplementing requirement exists so that the kinetic energy of water flow between the first water storage unit and the second water storage unit drives the hydroelectric generation units to generate electricity, wherein the arrangement position of the first water storage unit is higher than that of the second water storage unit, and the electric energy generated by the hydroelectric generation units supplies energy to the target building. The application can provide safer and more efficient energy management.

Inventors

• LV YUXUAN

Assignees

• 鸿海精密工业股份有限公司

Dates

Publication Date

20260512

Application Date

20241104

Claims (10)

1. 1. The energy management method is characterized by being applied to a target building, wherein water storage units are respectively arranged at different heights on the target building, a plurality of the water storage units are connected through a water pipeline, and a valve and a hydroelectric generation unit are arranged on the water pipeline; the method comprises the following steps: Determining whether the target building has an electric energy supplementing requirement according to the electricity consumption requirement and/or the electricity supply condition of the target building; If the electric energy supplementing requirement exists, controlling a valve on a water conveying pipeline between a first water storage unit and a second water storage unit to be opened, so that kinetic energy of water flow between the first water storage unit and the second water storage unit drives the hydroelectric generation unit to generate electricity, wherein the setting position of the first water storage unit is higher than that of the second water storage unit; the electric energy generated by the hydroelectric generation unit powers the target building.
2. 2. The method of claim 1, wherein the water delivery pipe is further provided with a water pumping unit, and the method further comprises: Determining whether the target building meets a preset energy storage condition according to the electricity demand and/or the electricity supply condition; And if the energy storage condition is met, controlling the valve to open and controlling the pumping unit to pump the water in the second water storage unit to the first water storage unit for storage.
3. 3. The method of claim 2, wherein the power supply condition comprises at least one of a power supply amount per unit time, a power supply type, and a power supply cost; When at least one condition is met, determining that the electric energy supplementing requirement exists in the target building, wherein the change rate of the electric quantity in unit time is larger than a preset first change rate threshold value, the electric quantity in unit time is larger than the electric quantity in unit time, and the electric supply cost is larger than a preset first cost threshold value; The preset energy storage condition comprises at least one of the following power supply type, the unit time power supply amount is larger than the unit time power consumption amount, the change rate of the unit time power consumption amount is smaller than a preset second change rate threshold value, and the power supply cost is smaller than a preset second cost threshold value.
4. 4. The method of claim 2, wherein the target building further has an energy unit disposed therein, the method further comprising: storing electrical energy output by the hydro unit to the energy unit in response to electrical energy output by the hydro unit; Or if the energy storage condition is met, controlling the energy source unit to supply energy to the water pumping unit.
5. 5. The method according to claim 4, wherein the method further comprises: responding to a charging request sent by a target vehicle; And if the electric energy supplementing requirement does not exist in the target building, controlling the energy unit to charge the target vehicle.
6. 6. The method of claim 5, wherein the target vehicle is a bi-directionally charged electric vehicle, and wherein the method further comprises: and if the electric energy supplementing requirement exists in the target building, controlling the target vehicle to charge the energy unit.
7. 7. The method according to claim 1, wherein the method further comprises: If the electric energy supplementing requirement exists, determining the requirement strength of the electric energy supplementing requirement according to the electricity consumption requirement and/or the power supply condition of the target building; Determining a target water delivery efficiency according to the required strength; Determining at least one of a target height, a target flow and a target power generation efficiency according to the target water delivery efficiency; Selecting the first water storage unit and the second water storage unit from the plurality of water storage units according to the target height; Or, controlling the opening parameters of the valve according to the target flow; or, controlling the power generation parameters of the hydroelectric power generation unit according to the target power generation efficiency.
8. 8. The method according to claim 1, wherein a buffer unit is further provided on the water pipe; the buffer unit is used for reducing the influence of the water flow motion in the water conveying pipeline on the target building.
9. 9. An energy management system, the energy management system comprising: a control unit for executing the energy management method according to any one of claims 1 to 8; the water storage units are used for storing water, are respectively arranged at different heights on a target building, and are connected through water pipes; the valve is arranged on the water conveying pipeline and is used for responding to the control of the control unit to control the on-off of water flow in the water conveying pipeline; a hydroelectric generation unit for converting the hydraulic kinetic energy into electric energy for output in response to the control of the control unit; and a pumping unit for pumping water and driving the pumped water in a specific direction in response to the control of the control unit.
10. 10. A building is characterized in that, the building comprising the energy management system of claim 9.

Description

Energy management method, system and building Technical Field The application relates to the technical field of intelligent control, in particular to an energy management method, an energy management system and a building. Background With the increasing demand for energy and the global emphasis on sustainable development of the environment, how to efficiently store and manage energy has become a challenge. Conventional gravitational energy storage systems rely on converting electrical energy into potential energy for storage by a weight. Specifically, in the energy storage stage, heavy objects (such as concrete blocks or other materials with higher density) are lifted to high-rise storage of a building by utilizing electric power, electric energy is converted into potential energy, in the energy release stage, the heavy objects can fall freely through gravity, the potential energy is converted into kinetic energy, and a generator is driven to convert the kinetic energy into electric energy for reuse. In practicing the prior art, the inventors have found that renewable energy usage is increasing in cities, but its instability makes energy storage technology particularly important. Traditional gravity energy storage systems can perform very well in the vast and rare areas, but when applied to urban environments, due to dense population, the falling of heavy objects from high places can cause potential safety risks. In addition, the huge sound generated by the rapid falling of the weight may also cause interference to the lives of the residents. Therefore, how to safely and efficiently apply the energy storage system in the city is a problem worthy of intensive research. Thus, there is a need for an energy management scheme that is more suitable for urban scenarios. Disclosure of Invention In view of the above, the embodiment of the application provides an energy management method, an energy management system and a building, which can solve the problems of poor experience, safety and low efficiency in urban scenes by using a gravity energy storage system in the prior art. In a first aspect, the embodiment of the application provides an energy management method, which is applied to a target building, wherein water storage units are respectively arranged at different heights on the target building, and a plurality of the water storage units are connected through a water pipeline; the method comprises the following steps: Determining whether the target building has an electric energy supplementing requirement according to the electricity consumption requirement and/or the electricity supply condition of the target building; If the electric energy supplementing requirement exists, controlling a valve on a water conveying pipeline between a first water storage unit and a second water storage unit to be opened, so that kinetic energy of water flow between the first water storage unit and the second water storage unit drives the hydroelectric generation unit to generate electricity, wherein the setting position of the first water storage unit is higher than that of the second water storage unit; the electric energy generated by the hydroelectric generation unit powers the target building. By adopting the technical scheme, the energy supplement for the target building is realized by utilizing the flow of water between the water storage units with the height difference. Therefore, the problems that the existing gravity energy storage is large in noise, low in safety, high in control cost and the like and is not suitable for urban building scenes are distinguished, the water flow energy storage noise is smaller, the water flow is easier to control, the safety is higher, the water storage area and the water conveying pipeline are possibly configured in the urban building, the improvement cost of the technical scheme is lower, and the feasibility is higher. In some embodiments, the water delivery pipeline is further provided with a water pumping unit, and the method further comprises: Determining whether the target building meets a preset energy storage condition according to the electricity demand and/or the electricity supply condition; And if the energy storage condition is met, controlling the valve to open and controlling the pumping unit to pump the water in the second water storage unit to the first water storage unit for storage. In some embodiments, the power supply condition comprises at least one of a power supply amount per unit time, a power supply type and a power supply cost; when at least one condition is met, determining that the target building has electric energy supplementing requirements, wherein the change rate of the electric quantity in unit time is larger than a preset first change rate threshold value, the electric quantity in unit time is larger than the electric quantity in unit time, and the electric supply cost is larger than a preset first cost threshold value; The preset energy storage cond