CN214412301U - Intelligent double-transformer differential voltage and current compensation device - Google Patents

Intelligent double-transformer differential voltage and current compensation device Download PDF

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Publication number
CN214412301U
CN214412301U CN202120789511.1U CN202120789511U CN214412301U CN 214412301 U CN214412301 U CN 214412301U CN 202120789511 U CN202120789511 U CN 202120789511U CN 214412301 U CN214412301 U CN 214412301U
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transformer
intelligent
switch
valve group
silicon controlled
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李铭
杨永刚
杨华龙
王鸿
刘蓓
邱镜菠
邓彪
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Chengdu Yicheng Technology Co ltd
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Chengdu Yicheng Technology Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving

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Abstract

The utility model discloses an intelligent two transformer difference voltage current compensation arrangement mainly solves current voltage regulator because transformer power is great, under the less condition that does not need the pressure regulating of load, the wasting of resources great problem that brings for whole platform district of the loss of transformer itself. The compensation device comprises an MCU (microprogrammed control unit), and a bypass switch KM, an intelligent switch valve group, a silicon controlled valve group, a communication unit, a boosting transformer T1 and a step-down transformer T2 which are connected with the MCU. The utility model discloses when grid voltage was too high (or crossed low), the automatic judgement of system controlled silicon controlled switch to realize that output voltage reaches the electric wire netting operation requirement. Just the utility model discloses to realize that the little the control unit of chip combines together with intelligent switch, carry out automatic judgement to the transformer input side, to the transformer switch combined floodgate that needs use, the transformer switch separating brake that does not need to use to this lowers the equipment loss that the transformer brought. Therefore, the method is suitable for popularization and application.

Description

Intelligent double-transformer differential voltage and current compensation device
Technical Field
The utility model relates to a voltage current compensation arrangement, specifically speaking relates to an intelligent two transformer difference voltage current compensation arrangement.
Background
As the living standard of people gradually rises, the utilization rate of high-power household appliances is relatively high, so that the voltage of a region far away from the transformer area side is extremely unstable, the voltage of the transformer area side is improved in part of the transformer area at present, so that users in the part of the far away can use the electricity normally, and the voltage of the users near the transformer area side is too high in the way, so that the appliances are possibly burnt out; and when the load of a user far away from the platform area is slightly large, the user voltage is too low due to the influence of longer lines, and the user cannot normally use electricity. In the conventional voltage regulator, the transformer has high power, so that under the condition of low load and no need of voltage regulation, the loss of the transformer per se causes great resource waste to the whole transformer area. Therefore, there is a need for an improved transformer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an intelligent two transformer difference voltage current compensation arrangement mainly solves current voltage regulator because transformer power is great, under the less condition that does not need the pressure regulating of load, the wasting of resources great problem that brings for whole platform district of the loss of transformer itself.
In order to achieve the above object, the utility model adopts the following technical scheme:
an intelligent double-transformer difference voltage and current compensation device comprises an MCU (microprogrammed control unit), a bypass switch KM, an intelligent switch valve group, a thyristor valve group, a communication unit, a boosting transformer T1 and a step-down transformer T2, wherein the bypass switch KM, the intelligent switch valve group, the thyristor valve group, the communication unit, the boosting transformer T1 and the step-down transformer T2 are connected with the MCU; the intelligent switch valve bank is connected with a primary coil of a boosting transformer T1 and a primary coil of a step-down transformer T2, and the thyristor valve bank is connected with a secondary coil of the boosting transformer T1 and a secondary coil of the step-down transformer T2; the bypass switch KM is also connected with an intelligent switch valve group and a silicon controlled valve group; the input side of the bypass switch KM is connected with a live line L of a mains supply, and the output side of the bypass switch KM is a power grid output end.
Further, the step-up transformer T1 adopts a 6-output 6-tap step-up transformer; the step-down transformer T2 adopts a 3-output 3-tap step-down transformer; the tail end tap of the step-up transformer T1 is connected with the head end tap of the step-down transformer T2.
Further, the intelligent switch valve group comprises intelligent switches K1, K2 and K3; one end of the intelligent switch K1 is connected with a live wire L of the mains supply; the other end of the intelligent switch K1 is connected with one end of the intelligent switches K2 and K3, the other end of the intelligent switch K2 is connected with a primary coil input end B1 of a step-up transformer T1, and the other end of the intelligent switch K2 is connected with a primary coil input end B3 of a step-down transformer T2; the primary coil input end B2 of the step-up transformer T1 and the primary coil input end B4 of the step-down transformer T2 are connected with a commercial power zero line N; the connection of the intelligent switches K1, K2 and K3 is connected with the tap connection ends of the step-up transformer T1 and the step-down transformer T2.
Further, the silicon controlled valve group comprises silicon controlled switches M1-M6, M8 and M9; wherein; the control ends of the silicon controlled switches M1-M6 are connected with the MCU, and the input ends of the silicon controlled switches M1-M6 are correspondingly connected with 6 taps of the step-up transformer T1; the input ends of the silicon controlled switches M8 and M9 are correspondingly connected with a tap of the step-down transformer T2 which is not connected with the step-up transformer T1; the output ends of the silicon controlled switches M1-M6, M8 and M9 are connected together to form a power grid output end.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model divides a traditional transformer into two N-type transformers and is matched with the chip micro-control unit, so that the voltage regulation range is enlarged and the voltage jump amplitude is reduced; meanwhile, when the voltage of the power grid is too high (or too low), the system automatically judges and controls the silicon controlled switch so as to realize that the output voltage meets the use requirement of the power grid. Just the utility model discloses to realize that the little the control unit of chip combines together with intelligent switch, carry out automatic judgement to the transformer input side, to the transformer switch combined floodgate that needs use, the transformer switch separating brake that does not need to use to this lowers the equipment loss that the transformer brought.
(2) The utility model discloses a many output formula transformer of taking a percentage more combines together with silicon controlled switch, chip autonomous system, falls into the voltage of different grades with output voltage, reaches output voltage regulation purpose, has reduced because the power loss of transformer work itself.
Drawings
Fig. 1 is a schematic block diagram of the overall circuit of the present invention.
Fig. 2 is a schematic circuit diagram of an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
Examples
As shown in fig. 1 and 2, the utility model discloses an intelligent double-transformer difference voltage and current compensation device, which comprises an MCU (microprogrammed control unit), a bypass switch KM, an intelligent switch valve group, a thyristor valve group, a communication unit, a step-up transformer T1 and a step-down transformer T2, wherein the bypass switch KM, the intelligent switch valve group, the thyristor valve group, the communication unit, the step-up transformer T1 and the step-down transformer T2 are connected with the MCU; the intelligent switch valve bank is connected with a primary coil of a boosting transformer T1 and a primary coil of a step-down transformer T2, and the thyristor valve bank is connected with a secondary coil of the boosting transformer T1 and a secondary coil of the step-down transformer T2; the bypass switch KM is also connected with an intelligent switch valve group and a silicon controlled valve group; the input side of the bypass switch KM is connected with a live line L of a mains supply, and the output side of the bypass switch KM is a power grid output end. The communication unit is used for transmitting an external control signal.
In the present embodiment, the step-up transformer T1 is a 6-output 6-tap step-up transformer, and the 6 taps are denoted as a1 to a 6. The step-down transformer T2 adopts A3-output 3-tap step-down transformer, and 3 taps are marked as A7-A9, wherein a tap A6 of the step-up transformer T1 is connected with a tap A7 of the step-down transformer T2.
In the present embodiment, the intelligent switch valve group comprises intelligent switches K1, K2, K3; one end of the intelligent switch K1 is connected with a live wire L of the mains supply; the other end of the intelligent switch K1 is connected with one end of the intelligent switches K2 and K3, the other end of the intelligent switch K2 is connected with a primary coil input end B1 of a step-up transformer T1, and the other end of the intelligent switch K2 is connected with a primary coil input end B3 of a step-down transformer T2; the primary coil input end B2 of the step-up transformer T1 and the primary coil input end B4 of the step-down transformer T2 are connected with a commercial power zero line N; the connection of the intelligent switches K1, K2 and K3 is connected with the tap connection ends of the step-up transformer T1 and the step-down transformer T2.
In this embodiment, the thyristor valve group includes thyristor switches M1-M6, M8, and M9; wherein; the control ends of the silicon controlled switches M1-M6 are connected with the MCU, and the input ends of the silicon controlled switches M1-M6 are correspondingly connected with 6 taps of the step-up transformer T1; the input ends of the silicon controlled switches M8 and M9 are correspondingly connected with taps A8 and A9 of a step-down transformer T2; the output ends of the silicon controlled switches M1-M6, M8 and M9 are connected together to form a power grid output end.
When the device works, the MCU micro control unit sends a command signal to the bypass switch KM, so that the bypass switch KM is in a closing state. Meanwhile, the MCU sends instructions to intelligent switches K1, K2, K3 and silicon controlled switches M1-M6, M8 and M9, the switches K1-K3, M1-M6, M8 and M9 are controlled to be in a brake-off state, the user side outputs normal power supply voltage of a power grid, the input sides of a boosting transformer T1 and a step-down transformer T2 are disconnected, and no transformer loss exists. When the boosting or reducing working mode is failed or can not work normally, the MCU micro control unit sends instruction signals to the intelligent switch K1 and the bypass switch KM respectively, the switch intelligent K1 is controlled to be in an opening state, and the bypass switch KM is controlled to be in a closing state, so that normal power utilization of a user is not influenced.
In a boosting state, when the input side of a power grid is lower than the required voltage of the power grid, the MCU micro-control unit sends a command to the intelligent K1 to control the intelligent switch K1 to be in a closing state, and simultaneously the silicon controlled switch M6 is controlled to be in the closing state, the MCU micro-control unit detects the states of the intelligent K1 and the silicon controlled switch M6 at the moment, sends a command to the bypass switch KM after detecting that a feedback signal is normal, and controls the bypass switch KM to be in a switching-off state; at the moment, the MCU sends an instruction to the intelligent switch K2 to control the intelligent switch K2 to be switched on, and the input side of the step-up transformer T1 is switched on; the MCU micro-control unit selects adaptive transformer gears (A1-A5, assumed to be A3 at the moment) according to the acquired input voltage value, the MCU micro-control unit sequentially sends instructions to the silicon controlled switches M6 and M3, the silicon controlled switch M6 is controlled to be in an opening state, then the silicon controlled switch M3 is controlled to be in a closing state, and the power grid user side is automatically increased to a qualified voltage value at the moment. At this time, the intelligent switch K3 of the step-down transformer T2 is always in the open state, and the step-down transformer T2 does not generate any loss to the whole system.
When the voltage is reduced, when the input side of the power grid is higher than the required voltage of the power grid, the MCU micro-control unit sends an instruction to the intelligent switch K1, the intelligent switch K1 is controlled to be in a switch-on state, meanwhile, the silicon controlled switch M6 is controlled to be in a switch-on state, the MCU micro-control unit detects the states of the intelligent switch K1 and the silicon controlled switch M6 at the moment, and sends an instruction to the bypass switch KM after detecting that a feedback signal is normal, and the bypass switch KM is controlled to be in a switch-off state; at the moment, the MCU sends an instruction to the switch K3 to control the switch K3 to be switched on, and the input side of the step-down transformer T2 is switched on; the MCU micro-control unit selects adaptive step-down transformer T2 gears (A8-A9, assumed to be A8 at the moment) according to the acquired input voltage value, the MCU micro-control unit sequentially sends instructions to the silicon controlled switches M6 and M8, the silicon controlled switch M6 is controlled to be in an opening state, then the silicon controlled switch M8 is controlled to be in a closing state, and at the moment, the power grid user side automatically reduces to a qualified voltage value. At this time, the intelligent switch K2 of the step-up transformer T1 is always in the open state, and the step-up transformer T1 does not generate any loss to the whole system.
Through the design, the utility model discloses when grid voltage is too high (or low excessively), the automatic judgement of system controls silicon controlled switch to realize that output voltage reaches the electric wire netting operation requirement. Just the utility model discloses to realize that the little the control unit of chip combines together with intelligent switch, carry out automatic judgement to the transformer input side, to the transformer switch combined floodgate that needs use, the transformer switch separating brake that does not need to use to this lowers the equipment loss that the transformer brought. Therefore, compared with the prior art, the utility model has the substantive characteristics and progress.
The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.

Claims (4)

1. An intelligent double-transformer difference voltage and current compensation device is characterized by comprising an MCU (microprogrammed control unit), a bypass switch KM, an intelligent switch valve group, a thyristor valve group, a communication unit, a boosting transformer T1 and a step-down transformer T2, wherein the bypass switch KM, the intelligent switch valve group, the thyristor valve group, the communication unit, the boosting transformer T1 and the step-down transformer T2 are connected with the MCU; the intelligent switch valve bank is connected with a primary coil of a boosting transformer T1 and a primary coil of a step-down transformer T2, and the thyristor valve bank is connected with a secondary coil of the boosting transformer T1 and a secondary coil of the step-down transformer T2; the bypass switch KM is also connected with an intelligent switch valve group and a silicon controlled valve group; the input side of the bypass switch KM is connected with a live line L of a mains supply, and the output side of the bypass switch KM is a power grid output end.
2. The intelligent double-transformer difference voltage and current compensation device according to claim 1, wherein the step-up transformer T1 is a 6-output 6-tap step-up transformer; the step-down transformer T2 adopts a 3-output 3-tap step-down transformer; the tail end tap of the step-up transformer T1 is connected with the head end tap of the step-down transformer T2.
3. The intelligent double-transformer differential voltage and current compensation device of claim 2, wherein the intelligent switch valve group comprises intelligent switches K1, K2, K3; one end of the intelligent switch K1 is connected with a live wire L of the mains supply; the other end of the intelligent switch K1 is connected with one end of the intelligent switches K2 and K3, the other end of the intelligent switch K2 is connected with a primary coil input end B1 of a step-up transformer T1, and the other end of the intelligent switch K2 is connected with a primary coil input end B3 of a step-down transformer T2; the primary coil input end B2 of the step-up transformer T1 and the primary coil input end B4 of the step-down transformer T2 are connected with a commercial power zero line N; the connection of the intelligent switches K1, K2 and K3 is connected with the tap connection ends of the step-up transformer T1 and the step-down transformer T2.
4. The intelligent double-transformer differential voltage and current compensation device of claim 3, wherein the thyristor valve group comprises thyristor switches M1-M6, M8 and M9; wherein; the control ends of the silicon controlled switches M1-M6 are connected with the MCU, and the input ends of the silicon controlled switches M1-M6 are correspondingly connected with 6 taps of the step-up transformer T1; the input ends of the silicon controlled switches M8 and M9 are correspondingly connected with a tap of the step-down transformer T2 which is not connected with the step-up transformer T1; the output ends of the silicon controlled switches M1-M6, M8 and M9 are connected together to form a power grid output end.
CN202120789511.1U 2021-04-16 2021-04-16 Intelligent double-transformer differential voltage and current compensation device Active CN214412301U (en)

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CN202120789511.1U CN214412301U (en) 2021-04-16 2021-04-16 Intelligent double-transformer differential voltage and current compensation device

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Application Number Priority Date Filing Date Title
CN202120789511.1U CN214412301U (en) 2021-04-16 2021-04-16 Intelligent double-transformer differential voltage and current compensation device

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