CN-224233543-U - Multisource electric energy integration and absorption control device

Abstract

The utility model discloses a multisource electric energy integration and absorption control device. The device comprises a device shell, an electric energy receiving port, a full-wave rectifier, an LLC resonant cavity, a relay, a transformer, a half-wave rectifier and a filter circuit, wherein the electric energy receiving port comprises a plurality of electric energy receiving input ports and an electric energy receiving output port, the electric energy receiving output port is in butt joint with the energy storage battery pack, the electric energy receiving input ports, the full-wave rectifier, the LLC resonant cavity, the relay, the transformer and the half-wave rectifier are sequentially connected, and the half-wave rectifier is in butt joint with the electric energy receiving output port after passing through the filter circuit. The utility model has the advantages of low switching loss, wide input power supply range, strong integration capability and high electric energy acquisition efficiency, and can simultaneously acquire and integrate electric energy of different types from multiple sources.

Inventors

• JIN HAOTIAN
• WU XIUSHAN
• WANG HONGXIANG
• Luo Puzhu
• SU YIRU
• LI YINLING
• CHEN RONGRONG
• JIANG LINGWEI
• CHEN KEYU

Assignees

• 浙江水利水电学院

Dates

Publication Date

20260512

Application Date

20250609

Claims (7)

1. 1. The utility model provides a multisource electric energy integration control device that absorbs, characterized by sets up in the centre of inserting multisource electric energy and leading the electric energy to energy storage battery, including device shell (1), electric energy receiving port, full wave rectifier (4), LLC resonant cavity (9), relay (5), transformer (7), half wave rectifier (6) and filter circuit (10) all install in device shell (1), electric energy receiving port includes a plurality of electric energy receiving input port (3) and an electric energy receiving output port (2), electric energy receiving output port (2) and energy storage battery butt joint, electric energy receiving input port (3), full wave rectifier (4) are connected, LLC resonant cavity (9), relay (5), transformer (7), half wave rectifier (6) connect gradually, half wave rectifier (6) dock output port (2) with electric energy receiving after filter circuit (10).
2. 2. The multi-source electric energy integration and absorption control device according to claim 1, wherein the cross section shapes of the electric energy receiving input port (3) and the electric energy receiving output port (2) are square, the inner side of the electric energy receiving input port (3) is connected with a full-wave rectifier (4) in a plug-and-plug mode, the inner side of the electric energy receiving output port (2) is connected with a half-wave rectifier (6) in a plug-and-plug mode, the full-wave rectifier (4) is provided with a full-wave rectifying input port (40) and a full-wave rectifying output port, the full-wave rectifying input port (40) is in one-to-one butt joint with the electric energy receiving input port (3), and the full-wave rectifying output port is in butt joint with an LLC resonant cavity.
3. 3. The multi-source electric energy integration and absorption control device according to claim 2, wherein the LLC resonant cavity (9) is provided with a protective shell (92), an inductance resonant cavity (90), a resonant capacitor (91) and a switch tube (8), the protective shell (92) is internally insulated, the inductance resonant cavity (90) is mounted on the protective shell (92), the input end of the inductance resonant cavity (90) is in butt joint with a full-wave rectification output port, the output end of the inductance resonant cavity (90) is in butt joint with the input end of the resonant capacitor (91), the output end of the resonant capacitor (91) is in butt joint with a relay (5), the switch tube (8) is in butt joint with the inductance resonant cavity (90), a resonant inductor (900) is arranged in the inductance resonant cavity (90), an adjusting button (80) is arranged on the switch tube (8), and the resonant inductor (900) is in butt joint with the adjusting button (80).
4. 4. A multi-source electric energy integration and absorption control device according to claim 3, characterized in that a relay base (52) is installed at the bottom of the relay (5), a stop key (50), a reset key (51), a function setting key (53) and a relay input port (54) are arranged on the relay (5), the relay base (52) is arranged on the left side and the right side of a protective shell (92), the output end of the resonant capacitor (91) is in butt joint with the relay input port (54), the function setting key (53) comprises an acceleration key (530), a deceleration key (531) and a constant speed key (532), and the output end of the relay (5) is in butt joint with the transformer (7).
5. 5. The multi-source electric energy integration and absorption control device according to claim 4, wherein the transformer (7) is provided with an insulating shell (71), a primary winding (72) and a secondary winding (70), the primary winding (72) and the secondary winding (70) are both arranged inside the insulating shell (71), the coil radius of the primary winding (72) is larger than that of the secondary winding (70), the output end of the relay (5) is in butt joint with the primary winding (72), and the secondary winding (70) is in butt joint with the half-wave rectifier (6).
6. 6. The multi-source electric energy integration and absorption control device according to claim 5, wherein the input end of the half-wave rectifier (6) is in butt joint with the secondary winding (70), the filter circuit (10) is provided with a filter circuit base plate (100), a filter capacitor (101), a filter inductor (103) and a filter energizing straight wire (102), the filter circuit (10) is in direct insertion connection with the half-wave rectifier (6) through the filter energizing straight wire (102), the filter capacitor (101) and the filter inductor (103) are both arranged on the filter circuit base plate (100), the filter capacitor (101) is connected with the filter inductor (103) in series, the half-wave rectifier (6) is provided with a half-wave rectification output port (60), and the inner side of the electric energy receiving output port (2) is in plug-in connection with the half-wave rectification output port (60) of the half-wave rectifier (6).
7. 7. A multisource power integration and absorption control device according to claim 1, characterized in that the device housing (1) is made of insulating material.

Description

Multisource electric energy integration and absorption control device Technical Field The utility model relates to the technical field related to new energy power management, in particular to a multi-source electric energy integrated absorption control device. Background Under the drive of a double-carbon target, the demand of new energy matching and storage is increased, the energy storage equipment is key equipment in an energy storage link at the side of a power grid, and is used as a core for connecting an energy storage battery pack and the power grid, the energy storage equipment is required to cope with multi-source electric energy input (photovoltaic, wind power, commercial power, diesel power generation and the like), the electric energy acquisition problem caused by the multi-source electric energy input is endless, the electric energy acquisition technology of the energy storage equipment is required to be further enhanced and perfected, and the electric energy acquisition problem is in need of being solved. Firstly, along with the input of disordered mixed sequences of various types of electric energy (such as photovoltaic direct current low voltage, wind power fluctuation alternating current, commercial power high voltage and the like), the electric energy management equipment in the traditional energy storage equipment at present generally adopts a hard switching topology (such as a Buck-Boost circuit), and the different characteristics of alternating current and direct current enable the electric energy to have switching loss increase rapidly due to input impedance mismatch under a mixed input scene (such as photovoltaic+commercial power), so that the problems of poor compatible electric energy type and high energy loss are faced, and the electric energy which is input in the mixed mode of alternating current and direct current at present cannot be converted efficiently. Meanwhile, in certain specific time periods, electric energy is greatly gushed in a short time, the instantaneous bearing capacity of the traditional electric energy management equipment is far exceeded, the overload risk of the equipment is aggravated, the input electric energy voltage range is limited to a certain extent, and the electric energy acquisition efficiency of the energy storage equipment is reduced. Therefore, a new technology is urgently needed to solve the above-mentioned problems. Disclosure of utility model The utility model provides a multi-source electric energy integration and absorption control device with low switching loss, high acquisition efficiency and wide input power supply range, which aims to overcome the defect that the energy storage device in the prior art has low electric energy acquisition efficiency when dealing with multi-source electric energy input. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a multisource electric energy integration control device that absorbs, sets up in the centre of inserting multisource electric energy and leading electric energy storage battery, including device shell, electric energy receiving port, full wave rectifier, LLC resonant cavity, relay, transformer, half wave rectifier and filter circuit all install in the device shell, electric energy receiving port includes a plurality of electric energy receiving input ports and an electric energy receiving output port, electric energy receiving output port and energy storage battery dock, electric energy receiving input port, full wave rectifier are connected, LLC resonant cavity, relay, transformer, half wave rectifier connect gradually, half wave rectifier dock with electric energy receiving output port after filter circuit. In the use process, electric energy of different types of multiple sources enters a full-wave rectifier through an electric energy receiving input port to primarily integrate electric energy, alternating current and direct current mixed electric energy types are primarily and uniformly converted into direct current, then the electric energy enters an LLC resonant cavity from the full-wave rectifier through an electrified lead, the direct current is inverted into high-frequency alternating current through high-frequency resonance characteristics, the high-frequency alternating current enters a relay through the electrified lead, soft switching zero loss can be realized by the relay, then the alternating current flows through a primary winding of a transformer, an alternating magnetic field is generated through an electromagnetic induction principle, a voltage is induced by a secondary winding to realize the step-up (or step-down) of the high-frequency alternating current, then alternating current voltage of the secondary winding of the transformer passes through a half-wave rectifier, negative half-cycle filtering (half-wave rectification) or overturning (full-wave rectification) of the high-frequency altern