CN218161816U

CN218161816U - Single-phase household comprehensive anti-interference device with optical storage interface

Info

Publication number: CN218161816U
Application number: CN202222085077.6U
Authority: CN
Inventors: 李尚盛; 陈思倩
Original assignee: Guangzhou Shanborui Technology Co ltd
Current assignee: Guangzhou Shanborui Technology Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-12-27
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses a single-phase family with light stores up comprehensive immunity device of interface, including electric current repair module, voltage repair module, device access switch, central controller, liquid crystal display and light store up the interface, electric current repair module and direct current generating line electric connection, voltage repair module and direct current generating line electric connection, electric current repair module parallel access the device access switch, voltage repair module series access the device access switch, central controller respectively with voltage repair module, electric current repair module and device access switch electric connection through the communication line; the utility model discloses go into the user side, aim at improves the harmonic and the reactive power disturbance of user side income user side electric current, carries out effective compensation to the idle of user side electric current and harmonic component to the disturbance problem to the terminal voltage of registering one's residence is restoreed, guarantees the electric energy quality that the user side went into the user side.

Description

Single-phase household comprehensive anti-interference device with optical storage interface

Technical Field

The utility model relates to a power switch technical field specifically is a single-phase family who possesses light and store up interface is with synthesizing anti-interference device.

Background

In recent years, power electronic technology is developed and rapidly, a large amount of power quality pollution problems are caused by the wide use of a power switch and the access of a large amount of nonlinear loads to a power grid, and in addition, the instability of the power grid is aggravated by the access of a large amount of new energy to the power grid; especially in a low-voltage distribution network, when a user enters a user end, the problems of reactive power shortage, large harmonic content, unqualified voltage quality and the like exist in electric energy, and the problems caused by the electric energy quality can cause the instability and even the damage of household appliances. Greatly influencing our daily life.

Aiming at the phenomenon of electric energy quality pollution at a user side, electric energy loss generated in a power grid transmission mode and electric energy quality problems caused by new energy access, the user-to-user terminal voltage quality problems and the reactive power and harmonic wave treatment requirements of current are increasingly outstanding.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a single-phase family who possesses light storage interface is with synthesizing anti-interference device to solve in low voltage distribution network, the user goes into the house end, and the electric energy has reactive power vacancy, harmonic content big, the unqualified scheduling problem of voltage quality, and the problem that these electric energy quality cause can lead to domestic appliance's unstability damage even. Greatly influencing the problem of our daily life.

In order to achieve the above purpose, the utility model provides a following technical scheme: the single-phase household comprehensive anti-interference device with the optical storage interface comprises a current repairing module, a voltage repairing module, a device access switch, a central controller, a liquid crystal display and the optical storage interface, wherein the current repairing module is electrically connected with a direct current bus, the voltage repairing module is electrically connected with the direct current bus, the current repairing module is connected into the device access switch in parallel, the voltage repairing module is connected into the device access switch in series, the central controller is respectively electrically connected with the voltage repairing module, the current repairing module and the device access switch through communication lines, the liquid crystal display is used for displaying a repairing mode and actual electric energy quality repairing conditions, and the liquid crystal display is electrically connected with the central controller.

The current restoration module comprises a parallel converter, a first filter circuit and an energy storage capacitor bank, wherein the parallel converter is formed by connecting insulated gate bipolar transistors in series or in parallel; one end of the parallel converter is connected with the first filter circuit, the other end of the parallel converter is connected with the energy storage capacitor, and the other end of the energy storage capacitor is connected to the direct current bus in parallel.

The current repairing module further comprises a voltage sampling module and a current sampling module, and the voltage sampling module and the current sampling module are electrically connected with the central controller through communication lines.

The voltage restoration module comprises a series converter, a second filter circuit and a sampling module, the series converter is formed by combining power semiconductor switches, the series converter is electrically connected with the second filter circuit, and the sampling module is electrically connected with the central controller through a communication line.

The central controller comprises a communication module, a driving module and a control module.

Wherein, central controller adopts embedded STM32 controller, embedded STM32 controller electric connection has AD sampling module, liquid crystal display, output control module, RS485 communication module, SPI communication module, power module and ethernet communication module respectively, embedded STM32 controller passes through ethernet communication module and is connected with the server.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses enter the user side at the user side, aim at improving the harmonic and the idle disturbance of user side income user side end electric current, carry out effective compensation to idle and harmonic component of user side electric current to the disturbance problem of terminal voltage of entering the user is restoreed, guarantees the electric energy quality of user side income user side; in addition, the structure of the anti-interference device is a basic structure based on a direct current bus, so that the device is added with an optical storage interface based on the bus on the basis of meeting the basic function of the comprehensive anti-interference device, and the possibility of direct access of new energy to the home is provided for users.

Drawings

FIG. 1 is a block diagram of the overall structure of the present invention;

fig. 2 is a block diagram of the central controller according to the present invention;

FIG. 3 is a detailed view of the utility model current remediation module;

FIG. 4 is a detailed view of the utility model voltage remediation module;

fig. 5 is a detailed view of the optical storage interface of the utility model.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a single-phase family with light stores up comprehensive immunity device of interface, including electric current restoration module, voltage restoration module, device access switch, central controller, liquid crystal display and light store up the interface, electric current restoration module and direct current generating line electric connection, voltage restoration module and direct current generating line electric connection, electric current restoration module parallel access the device access switch, voltage restoration module series connection access device access switch, central controller passes through the communication line respectively with voltage restoration module, electric current restoration module and device access switch electric connection, liquid crystal display is used for showing comprehensive immunity device restoration mode and actual power quality repair condition, electric connection between brilliant display and the central controller.

The current restoration module comprises a parallel converter, a first filter circuit and an energy storage capacitor bank, wherein the parallel converter is formed by connecting insulated gate bipolar transistors in series or in parallel; one end of the parallel converter is connected with the first filter circuit and is used for filtering high-frequency harmonic components in the target current output by the parallel converter and meeting the current restoration requirement; the other end of the parallel converter is connected with an energy storage capacitor, and the other end of the energy storage capacitor is connected to the direct current bus in parallel.

The voltage restoration module comprises a series current transformer, a second filter circuit and a sampling module, wherein the series current transformer is formed by combining power semiconductor switches, and the series current transformer is electrically connected with the second filter circuit so as to ensure the quality of the compensation voltage and current output by the voltage restoration module; the sampling module is electrically connected with the central controller through a communication line.

Wherein, central controller includes communication module, drive module and control module, and central controller adopts embedded STM32 controller, and embedded STM32 controller electric connection has AD sampling module, liquid crystal display, output control module, RS485 communication module, SPI communication module, power module and ethernet communication module respectively, and embedded STM32 controller passes through ethernet communication module and is connected with the server.

The sampling module transmits a sampled signal to the actual control module, the control module specifically controls the signal and then transmits an execution signal to the driving module, and the driving module drives the current repairing module, the voltage repairing module, the device access switch and the optical storage interface according to requirements;

based on this infrastructure, the utility model provides an anti-interference device has electric current repair function, voltage repair function, light and stores up the access function.

The current restoration function is that a parallel converter in a current restoration module converts the electric energy stored on the energy storage capacitor into a power grid current compensation component according to the detected power grid current harmonic component and reactive component to restore the power grid current;

the voltage restoration function is used for converting the bus voltage into a compensation component required by the power grid voltage aiming at the detected power grid voltage interference problem by the voltage restoration module and restoring the power grid voltage quality;

the photovoltaic or energy storage access requirements which may actually appear in the current user are considered, the photovoltaic access module is arranged, the universal light storage device can be accessed, and the light storage charging and discharging functions required by the user are met.

The device has the following different modes in implementation.

A. And (3) voltage restoration mode: when only the voltage quality problem occurs, only the voltage repair module needs to be put into operation at the moment, and the basic function requirements are met

B. A current restoration mode: when only the current quality problem appears, the voltage restoration module is only needed to be put into operation, and the basic function requirements are met.

C. And (3) a comprehensive power quality restoration mode: when comprehensive electric energy quality problems such as reactive power shortage, large harmonic content, unqualified voltage quality and the like occur, the device is integrally put into use as an anti-interference device, and the electric energy quality problems of the user terminal are comprehensively repaired.

D. The device integrated restoration mode of the light storage is added: if a user has photovoltaic or energy storage independent access or the access requirement of the light and energy storage integrated device, the function of the basic light and energy storage integrated device for the user can be completely realized on the basis of meeting the electric energy quality restoration function only by taking a photovoltaic panel or an energy storage battery as an independent unit to access a universal interface of the device.

The utility model discloses the structure improvement point lies in, has added a new light in device subject structure and has stored up the interface, and this light stores up the interface and can realize general optical storage device access function under the prerequisite that does not influence device overall performance, through the innovation to device circuit structure and control strategy, can be to under the prerequisite of guaranteeing electric energy quality compensation effect, in the actual routine of implementing, satisfy user's light and store up the module and insert the demand.

The above specific routines are provided for explaining the principles of the present invention and are not limited to the above embodiments, and those skilled in the art can make various modifications and changes without departing from the spirit of the present invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Claims

1. The utility model provides a single-phase family with synthesizing immunity device that possesses light and store up interface, includes that electric current restores module, voltage restoration module, device access switch, central controller, liquid crystal display and light store up the interface, its characterized in that: the device comprises a current repairing module, a voltage repairing module, a device access switch, a central controller, a liquid crystal display and a central controller, wherein the current repairing module is electrically connected with the direct current bus, the voltage repairing module is electrically connected with the direct current bus, the current repairing module is connected in parallel with the device access switch, the voltage repairing module is connected in series with the device access switch, the central controller is electrically connected with the voltage repairing module, the current repairing module and the device access switch through communication lines, the liquid crystal display is used for displaying repairing modes and actual electric energy quality repairing conditions, and the liquid crystal display is electrically connected with the central controller.

2. The integrated immunity device for single-phase users with optical storage interface of claim 1 is characterized in that: the current restoration module comprises a parallel converter, a first filter circuit and an energy storage capacitor bank, wherein the parallel converter is formed by connecting insulated gate bipolar transistors in series or in parallel; one end of the parallel converter is connected with the first filter circuit, the other end of the parallel converter is connected with the energy storage capacitor, and the other end of the energy storage capacitor is connected to the direct current bus in parallel.

3. The integrated immunity device for single-phase users with optical storage interface of claim 2, wherein: the current repairing module further comprises a voltage sampling module and a current sampling module, and the voltage sampling module and the current sampling module are electrically connected with the central controller through communication lines.

4. The integrated immunity device for single-phase users with optical storage interface of claim 1 is characterized in that: the voltage restoration module comprises a series converter, a second filter circuit and a sampling module, the series converter is formed by combining power semiconductor switches, the series converter is electrically connected with the second filter circuit, and the sampling module is electrically connected with the central controller through a communication line.

5. The integrated immunity device for single-phase users with optical storage interface of claim 1, wherein: the central controller comprises a communication module, a driving module and a control module.

6. The integrated immunity device for single-phase users with optical storage interface of claim 1, wherein: central controller adopts embedded STM32 controller, embedded STM32 controller is electric connection respectively has AD sampling module, liquid crystal display, output control module, RS485 communication module, SPI communication module, power module and ethernet communication module, embedded STM32 controller passes through ethernet communication module and is connected with the server.