Cold and heat storage system based on renewable energy power generation

Abstract

The invention relates to a renewable energy power generation-based cold and hot dual-storage system, which comprises a central control unit, a renewable energy module, an energy distribution module, an energy storage module and an energy supply module, and is characterized in that the input end of the central control module is connected with the renewable energy module; the output end of the central control module is connected with the energy distribution module and the energy storage module, the energy storage module is connected with the energy distribution module, the output end of the energy storage module is connected with the energy supply module, and the energy storage module comprises a hot energy storage device and a cold energy storage device. By arranging an electric quantity meter, a temperature sensor and a peak value detector in the energy distribution module, a heat energy storage device and a cold energy storage device can be conveniently controlled to supply heat energy and cold energy in time according to the electricity peak value and temperature of an external air conditioner, operation is easy, distribution is convenient and rapid, and the workload of workers is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of renewable energy power generation, and in particular, to a cold and heat dual energy storage system based on renewable energy power generation. Background Art

[0002] Renewable energy refers to the energy that can be continuously regenerated and used perpetually in nature. It belongs to the primary energy in the process of energy development and utilization, is a kind of clean energy, and is an important energy source conducive to the harmonious development of humans and nature.

[0003] In the prior art, such as the Chinese patent with the application number "CN202020047230.4", specifically a cold and heat dual energy storage system based on renewable energy power generation, the central controller respectively converts solar energy, wind energy and water energy into electric energy through the solar components, wind power generation components and hydropower generation components in the renewable energy conversion unit, and stores them in the storage battery and the power grid. The selected storage batteries are in multiple groups, with some used for discharging and some for charging to ensure that there is always electric energy stored in the battery pack, so as to more effectively ensure the continuous and stable operation of the generator. By connecting the detection and monitoring unit, it monitors the peak shaving controller, the protection switch unit and the inverter output controller. The detection and monitoring unit detects the voltage or current from the operating power grid and the storage battery, calculates the electric energy to be compensated for the power grid and the storage battery, issues a control command, starts the peak shaving controller, and sends the stored energy to the power grid for peak shaving processing after inversion by the inverter output controller. If an abnormality occurs in the circuit, the inverter output controller can be controlled to disconnect. The protection switch unit includes a high-voltage fuse, a leakage protector, a lightning arrester and a live-line indicator, and has the function of ensuring safe maintenance and protecting the circuit. Then, the stored electric energy is converted into alternating current through an inverter, transported to the heat accumulator and the cold accumulator for cold and heat conversion, and energy is provided to the heating unit and the cooling unit.

[0004] The prior art stores cold and heat energy through renewable energy, stores heat energy and cold energy through energy storage instruments, and utilizes these stored heat energy or cold energy under the condition of high electricity consumption peaks to reduce the electricity consumption pressure. However, the distribution of energy is carried out manually, and the cold energy and heat cannot be distributed in a timely manner, increasing the workload of the distribution personnel. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and propose a cold and heat dual energy storage system based on renewable energy power generation, which solves the problem of increasing the workload of staff for the cold energy or heat energy distributed through renewable energy.

[0006] The present invention solves its technical problems by adopting the following technical solutions:

[0007] A cold and heat dual energy storage system based on renewable energy power generation, comprising a central controller, a renewable energy module, an energy distribution module, an energy storage module and an energy supply module. The input end of the central control module is connected to the renewable energy module, and the output end of the central control module is respectively connected to the energy distribution module and the energy storage module. The energy storage module is connected to the energy distribution module, and the output end of the energy storage module is connected to the energy supply module. The renewable energy module is used for the collection and storage of renewable energy; the energy distribution module is used for the distribution of renewable energy; the energy storage module is used for the storage of cold energy and heat energy; the energy supply module is used for the supply of cold energy and heat energy, and the central controller is used for controlling the system.

[0008] Moreover, the renewable energy module includes a solar power generation component, a wind power generation component, a hydro power generation component and a battery component. Among them, the solar power generation component is used for generating electricity from external solar energy, the wind power generation component is used for generating electricity from external wind energy, the hydro power generation module is used for generating electricity from water power. The solar power generation component, the wind power generation component and the hydro power generation component are all connected to the battery component, and the battery component is used for storing renewable energy.

[0009] Moreover, the energy storage module includes a heat energy storage device and a cold energy storage device. The heat energy storage device is used for collecting and storing the waste heat generated by the electric boiler, and the cold energy storage device is used for collecting and storing the cold energy generated by the chiller and storing it in the insulated water storage tank; the energy supply module includes a commercial complex air conditioning component and an office building air conditioning component.

[0010] Moreover, the energy distribution module includes an electricity meter, a temperature sensor and a peak sensor. Among them, the electricity meter is used for measuring the electricity consumption of external supply equipment, the temperature sensor monitors the external temperature, and the peak detector is used for detecting the electricity consumption peak of the supply equipment. The peak detector is connected to the electricity meter.

[0011] Moreover, the peak detector and the electricity meter are both connected to the commercial complex air conditioning component and the office building air conditioning component. The peak detector detects through the electricity measured by the electricity meter. When it detects that the commercial complex air conditioning component and the office building air conditioning component are greater than or equal to the peak value, it starts the energy supply module to supply energy. The temperature sensor detects the external temperature. When it detects that the temperature exceeds the set standard value, the battery module in the renewable energy module transports it to the cold energy storage device. When the temperature is lower than the set standard value, the battery module in the renewable energy module transports it to the heat energy storage device.

[0012] Moreover, when the peak detector detects that the commercial complex air conditioning component and the office building air conditioning component are lower than the peak electricity consumption, it distributes the power to the energy storage module to start the heat energy storage device and the cold energy storage device for energy storage.

[0013] The advantages and positive effects of the present invention are:

[0014] The present invention includes a central controller, a renewable energy module, an energy distribution module, an energy storage module, and an energy supply module. The input end of the central control module is connected to the renewable energy module, and the output ends of the central control module are respectively connected to the energy distribution module and the energy storage module. The energy storage module is connected to the energy distribution module, and the output end of the energy storage module is connected to the energy supply module. The renewable energy module is used for collecting and storing renewable energy; the energy distribution module is used for distributing renewable energy; the energy storage module is used for storing cold energy and heat energy; the energy supply module is used for supplying cold energy and heat energy, and the central controller is used for controlling the system. By providing an electricity meter, a temperature sensor, and a peak detector in the energy distribution module of the present invention, it is convenient to control the heat energy storage device and the cold energy storage device to supply heat energy and cold energy in a timely manner according to the external air-conditioning electricity peak and temperature. The operation is simple, the distribution is convenient and fast, and the workload of the staff is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a system structure diagram of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] A cold and heat dual energy storage system based on renewable energy power generation, as Figure 1 shown, includes a central controller, a renewable energy module, an energy distribution module, an energy storage module, and an energy supply module. The input end of the central control module is connected to the renewable energy module, and the output ends of the central control module are respectively connected to the energy distribution module and the energy storage module. The energy storage module is connected to the energy distribution module, and the output end of the energy storage module is connected to the energy supply module. The energy storage module includes a heat energy storage device and a cold energy storage device, and the energy supply module includes a commercial complex air-conditioning component and an office building air-conditioning component.

[0018] The renewable energy module is used for collecting and storing renewable energy. The renewable energy module includes a solar power generation component, a wind power generation component, a hydro power generation component, and a battery component. The solar power generation component is used for generating electricity from external solar energy, the wind power generation component is used for generating electricity from external wind energy, and the hydro power generation module is used for generating electricity from water power. The solar power generation component, the wind power generation component, and the hydro power generation component are all connected to the battery component, and the battery component is used for storing renewable energy. By generating electricity from external renewable energy, the electricity load of the commercial complex air-conditioning component and the office building air-conditioning component is reduced.

[0019] The energy distribution module is used to distribute renewable energy. The energy distribution module includes an electricity meter, a temperature sensor, and a peak sensor. The electricity meter is used to measure the electricity consumption of external supply devices. The temperature sensor monitors the external temperature. The peak detector is used to detect the peak electricity consumption of the supply devices. The peak detector is connected to the electricity meter. Both the peak detector and the electricity meter are connected to the air-conditioning components of the commercial complex and the air-conditioning components of the office building. The peak detector detects based on the electricity measured by the electricity meter. When it detects that the air-conditioning components of the commercial complex and the office building are greater than or equal to the peak value, the energy supply module is started to supply energy. The temperature sensor detects the external temperature. When it detects that the temperature exceeds the set standard value, the battery module in the renewable energy module transports it to the cold energy storage device. When the temperature is lower than the set standard value, the battery module in the renewable energy module transports it to the heat energy storage device. The heat energy storage device collects and stores the waste heat generated by the electric boiler. The cold energy storage device collects and stores the cold energy generated by the chiller and stores it in the insulated water storage tank. When the peak detector detects that the air-conditioning components of the commercial complex and the office building are below the peak electricity consumption, the electricity is distributed to the energy storage module, causing the heat energy storage device and the cold energy storage device to start storing energy. When distributing, the electricity consumption of the air-conditioning components of the commercial complex and the office building is measured by the electricity meter. When the measured electricity reaches the peak value of the peak detector, the energy storage component is started to transmit the stored energy to the energy supply module, facilitating the use of the stored energy during peak power consumption. At the same time, the external temperature is detected by the temperature sensor, and the corresponding heat energy storage device and cold energy storage device are started to facilitate the use of heat energy and cold energy, reducing the power consumption pressure. The operation is simple, reducing the workload assigned to the staff.

[0020] The energy storage module is used to store cold energy and heat energy; the energy supply module is used to supply cold energy and heat energy.

[0021] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation manners. Any other implementation manners obtained by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A cold and hot dual storage system based on renewable energy power generation, characterized by: It includes a central controller, a renewable energy module, an energy distribution module, an energy storage module and an energy supply module. The input end of the central control module is connected to the renewable energy module, and the output end of the central control module is respectively connected to the energy distribution module and the energy storage module. The energy storage module is connected to the energy distribution module, and the output end of the energy storage module is connected to the energy supply module. The renewable energy module is used for collecting and storing renewable energy; the energy distribution module is used for distributing renewable energy; the energy storage module is used for storing cold energy and heat energy; the energy supply module is used for supplying cold energy and heat energy, and the central controller is used for controlling the system.

2. A cold and hot dual storage system based on renewable energy power generation according to claim 1, characterized in that: The renewable energy module includes a solar power generation component, a wind power generation component, a hydropower generation component and a battery component, wherein the solar power generation component is used to generate electricity from external solar energy, the wind power generation component is used to generate electricity from external wind power, and the hydropower generation module is used to generate electricity from hydropower. The solar power generation component, the wind power generation component and the hydropower generation component are all connected to the battery component, and the battery component is used to store renewable energy.

3. A cold and hot dual storage system based on renewable energy power generation according to claim 2, characterized in that: The energy storage module includes a hot energy storage device and a cold energy storage device. The hot energy storage device is used to collect and store the waste heat generated by the electric boiler, and the cold energy storage device is used to collect and store the cold energy generated by the chiller, which is stored in a heat-insulating water storage tank. The energy supply module includes commercial complex air-conditioning components and office building air-conditioning components.

4. A cold and hot dual storage system based on renewable energy power generation according to claim 3, characterized in that: The energy distribution module includes a power meter, a temperature sensor and a peak sensor, wherein the power meter is used to measure the power consumption of the external supply device, the temperature sensor monitors the external temperature, and the peak detector is used to detect the peak power consumption of the supply device, and the peak detector is connected to the power meter.

5. A cold and hot dual storage system based on renewable energy power generation according to claim 4, characterized in that: The peak detector and the power meter are both connected to the commercial complex air-conditioning components and the office building air-conditioning components. The peak detector detects the power measured by the power meter. When it detects that the commercial complex air-conditioning components and the office building air-conditioning components are greater than or equal to the peak value, the energy supply module is started to supply energy. The temperature sensor detects the external temperature. When it is detected that the temperature exceeds the set standard value, the battery module in the renewable energy module transmits the energy to the cold energy storage device. When the temperature is lower than the set standard value, the battery module in the renewable energy module transmits the energy to the hot energy storage device.

6. A cold and hot dual storage system based on renewable energy power generation according to claim 5, characterized in that: When the peak detector detects that the power consumption of the air-conditioning components of the commercial complex and the air-conditioning components of the office building is lower than the peak power consumption, the power is distributed to the energy storage module, so that the hot energy storage device and the cold energy storage device are started to store energy.

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