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CN-121984041-A - Wind-solar energy storage equipment and power grid system

CN121984041ACN 121984041 ACN121984041 ACN 121984041ACN-121984041-A

Abstract

The invention discloses wind-solar energy storage equipment and a power grid system, and relates to the technical field of energy storage equipment, wherein a box body of the wind-solar energy storage equipment, a power supply device, a converter, an inverter and an energy storage system are arranged in the box body, the box body further comprises two partition boards, the two partition boards divide the installation groove into three compartments, the power supply device is used for providing electric energy for the wind-solar energy storage equipment, the power supply device is positioned outside the box body, the converter is electrically connected with the power supply device, the converter can convert and distribute the electric energy provided by the power supply device, the converter is movably connected with the box body, the inverter is electrically connected with the converter, the energy storage system is movably connected with the converter, and the converter, the inverter and the energy storage system are respectively positioned in one compartment. The technical scheme provided by the invention aims to solve the problems that the existing energy storage equipment is difficult to maintain and replace, the expansibility is poor, and multiple machine networks are difficult to operate, so that the subsequent capacity expansion operation is difficult to perform.

Inventors

  • TANG YIN
  • GUO LIDONG
  • XIE XIAOPING
  • YU HAI
  • CHEN YUSHENG
  • YANG LONGFEI
  • LI XIANJUN
  • WANG FAN
  • JIANG ZONGNAN

Assignees

  • 中石油深圳新能源研究院有限公司
  • 中国石油天然气股份有限公司

Dates

Publication Date
20260505
Application Date
20241031

Claims (10)

  1. 1. A wind-solar energy storage device, comprising: The box body (1), the box body (1) is provided with a mounting groove (1 a), the box body (1) further comprises two partition boards (11), the two partition boards (11) are connected with the box body (1), the two partition boards (11) are located in the mounting groove (1 a), the two partition boards (11) extend along the direction from the bottom of the mounting groove (1 a) to the notch, and the two partition boards (11) divide the mounting groove (1 a) into three compartments (11 a); the power supply device (2) is used for providing electric energy for the wind-solar energy storage equipment, and the power supply device (2) is positioned outside the box body (1); the converter (3) is electrically connected with the power supply device (2), the converter (3) can convert and distribute electric energy provided by the power supply device (2), and the converter (3) is movably connected with the box body (1); the inverter (4) is electrically connected with the converter (3), the inverter (4) is used for converting the electric energy converted by the converter (3) into alternating current, the inverter (4) is movably connected with the box body (1), and The energy storage system (5) is electrically connected with the converter (3), the energy storage system (5) is used for storing the electric energy converted by the converter (3), and the energy storage system (5) is movably connected with the box body (1); the converter (3), the inverter (4) and the energy storage system (5) are arranged at intervals, and the converter (3), the inverter (4) and the energy storage system (5) are respectively located in one compartment (11 a).
  2. 2. Wind-solar energy storage device according to claim 1, characterized in that the box (1) further comprises a plurality of limiting blocks (14), each limiting block (14) is connected with the box (1), each limiting block (14) is located at one end of one compartment (11 a) close to the notch of the mounting groove (1 a), and limiting plates (21) are arranged at one ends of the converter (3), the inverter (4) and the energy storage system (5) close to the notch of the mounting groove (1 a), and each limiting plate (21) is abutted with one limiting block (14).
  3. 3. Wind-solar energy storage device according to claim 2, characterized in that the box (1) is provided with wiring holes (1 b), the wiring holes (1 b) are located in the bottom wall of the box (1), the converter (3), the inverter (4) and the energy storage system (5) are provided with binding posts (22), and each binding post (22) is arranged in the wiring hole (1 b) in a penetrating way.
  4. 4. A wind and solar energy storage device according to claim 3, wherein the box (1) further comprises a plurality of guide rails (12) and a plurality of sliding blocks (13), each guide rail (12) extends along the direction from the bottom of the installation groove (1 a) to the notch, each guide rail (12) is connected with the inner side wall of one compartment (11 a), one sliding block (13) is connected with the converter (3), one sliding block (13) is connected with the inverter (4), and one sliding block (13) is connected with the energy storage system (5).
  5. 5. Wind-solar energy storage device according to claim 4, characterized in that the box (1) further comprises a locking element (15), the locking element (15) being connected to the box (1), the locking element (15) being located at the opening of the compartment (11 a).
  6. 6. Wind and light storage device according to any of claims 1 to 5, characterized in that the wind and light storage device further comprises a control system (6), the control system (6) being electrically connected to the power supply means (2), the converter (3), the inverter (4) and the energy storage system (5).
  7. 7. Wind and solar energy storage plant according to claim 6, characterized in that it comprises a sensor (7), said sensor (7) being electrically connected to said converter (3), said inverter (4), said energy storage system (5) and said control system (6).
  8. 8. Wind and solar energy storage plant according to claim 7, characterized in that the sensor (7) comprises a temperature sensor, a voltage sensor and a current sensor.
  9. 9. A power grid system, comprising: at least one wind and solar energy storage device according to any one of claims 1 to 8; The control center comprises an assembly box, each box body (1) is located in the assembly box, and each box body (1) is detachably connected with the assembly box.
  10. 10. Grid system according to claim 9, characterized in that the housing (1) is provided with a limiting hole (1 c), the limiting hole (1 c) being located on the side of the housing (1) facing the assembly box, the limiting hole (1 c) being used for connecting the housing (1) with the assembly box (81).

Description

Wind-solar energy storage equipment and power grid system Technical Field The invention relates to the technical field of energy storage equipment, in particular to wind-solar energy storage equipment and a power grid system. Background Wind and solar energy storage generally refers to a combination of wind energy, solar energy and energy storage technologies, which can improve the stability and reliability of energy systems. Wind and solar energy, while clean renewable energy sources, are both intermittent and unstable energy sources, meaning that their power generation fluctuates with weather and time. To address this problem, energy storage technology is introduced into the system to store excess energy and release the energy when needed, thereby balancing supply and demand. In practical application, the wind-solar energy storage device can improve the utilization rate and reliability of an intermittent power supply, and uninterrupted and stable power supply of the system is realized. In addition, in order to realize the integrated development of wind and solar energy storage depth, various aspects need to be considered, including power grid access stability, power generation cost, energy storage utilization rate, technical maturity and the like. The energy storage technology is a key of a new energy system, can improve the utilization rate and the digestion capacity of wind-solar power generation, and forms a stable system to cope with the future energy safety problem. In the configuration of wind-solar energy storage equipment, the influence of initial investment cost, operation maintenance cost, tie line power fluctuation punishment cost and time-of-use electricity price on energy storage capacity configuration needs to be considered. Through reasonable energy storage capacity configuration, complementary characteristics of the wind-solar energy storage system can be fully exerted, and economical efficiency and tie line power fluctuation of the energy storage system are optimized. The existing energy storage equipment is difficult to maintain and replace, poor in expansibility and difficult in multi-machine networking, and further the follow-up capacity expansion operation is difficult to carry out. Disclosure of Invention The invention mainly aims to provide wind-solar energy storage equipment and a power grid system, and aims to solve the problems that the existing energy storage equipment is difficult to maintain and replace, the expansibility is poor, multiple units of networks are difficult, and further the follow-up operation such as capacity expansion is difficult to carry out. The wind-solar energy storage device comprises a box body, a power supply device, a converter, an inverter and an energy storage system, wherein the box body is provided with a mounting groove, the box body further comprises two partition boards, the two partition boards are connected with the box body, the two partition boards are located in the mounting groove and extend along the direction from the bottom of the mounting groove to a notch, the two partition boards divide the mounting groove into three compartments, the power supply device is used for providing electric energy for the wind-solar energy storage device, the power supply device is located outside the box body, the converter is electrically connected with the power supply device, the converter can convert and distribute electric energy provided by the power supply device, the converter is movably connected with the box body, the inverter is electrically connected with the converter, the inverter is used for converting electric energy converted by the converter into alternating current, the inverter is movably connected with the box body, the energy storage system is electrically connected with the converter, the energy storage system is located outside the box body, the inverter is movably connected with the energy storage system, and the energy storage system is respectively located between the two compartments, and the energy storage system is movably connected with the energy storage system. In an embodiment, the box further comprises a plurality of limiting blocks, each limiting block is connected with the box, each limiting block is located at one end, close to the notch of the installation groove, of one compartment, limiting plates are arranged at one ends, close to the notch of the installation groove, of the converter, the inverter and the energy storage system, and each limiting plate is in butt joint with one limiting block. In an embodiment, the box body is provided with a wiring hole, the wiring hole is located on the bottom wall of the box body, the converter, the inverter and the energy storage system are all provided with binding posts, and each binding post penetrates through the wiring hole. In one embodiment, the box further comprises a plurality of guide rails and a plurality of sliding blocks, each guide rail extends along the directio