CN218976407U

CN218976407U - Dual-power active power transmitter

Info

Publication number: CN218976407U
Application number: CN202223163984.4U
Authority: CN
Inventors: 刘志勇; 胡佰军; 潘龙飞; 杨俊峰; 李志强; 张强; 刘强; 李文华; 王宝健
Original assignee: Baotou Power Generation Branch Huadian Inner Mongolia Energy Co ltd
Current assignee: Baotou Power Generation Branch Huadian Inner Mongolia Energy Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-05-05
Anticipated expiration: 2032-11-28

Abstract

The utility model relates to the technical field of generator equipment, in particular to a dual-power active power transmitter, which is characterized in that a first power supply and a second power supply are arranged, wherein the input end of the first power supply is connected with a UPS (uninterrupted power supply) with alternating current 220V voltage, the input end of the second power supply is connected with direct current 220V voltage, so that the power supply is supplied by alternating current 220V and direct current 220V, the alternating current power supply is taken from an uninterruptible power supply UPS, the direct current power supply is taken from a direct current system 220V, the two power supplies are power supplies with extremely high stability, the probability of failure is very low, the two power supplies are in a logic or relation, the transmitter can normally work as long as one power supply is normally supplied, the failure probability of the generator active power transmitter is reduced, and the operation stability of a generator set is improved.

Description

Dual-power active power transmitter

Technical Field

The utility model relates to the technical field of generator equipment, in particular to a dual-power active power transmitter.

Background

The output value of the active power transmitter of the power plant generator DEH is sent to the thermal DEH to participate in logic regulation, the logic is three or one, that is, three active power transmitters have to have one output normally, and the unit can normally operate. The power supply of the general active power transmitter is a single power supply and is mostly in an alternating current 220V power supply mode, the power supply is taken from a UPS system, if the UPS system fails and causes the three transmitters to lose power simultaneously, the output value is abnormal, so that the thermal logic judges that the load of a unit is 0, the unit trips, great loss can be caused to a power plant, and the dual-power active power transmitter is designed aiming at the problems.

Disclosure of Invention

The utility model aims to provide a dual-power active power transmitter so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a dual supply active power transmitter, includes transmitter shell, binding post board, transmitter work circuit, first power supply and second power supply, transmitter shell surface mounting has the binding post board, transmitter shell internally mounted has transmitter work circuit, transmitter work circuit power end is connected with first power supply and second power supply;

17 interface terminals are arranged on the surface of the wiring terminal board and connected with a working circuit of the transmitter, and the interface terminals comprise 4 power supply wiring terminals, 2 output wiring terminals, 3 three voltage wiring terminals, 4 current wiring terminals, 3 standby wiring terminals and 1 grounding wire terminal;

the transmitter working circuit comprises a signal synthesis conversion circuit, a current conversion filtering sampling circuit, a voltage filtering sampling circuit and an output circuit, wherein the signal synthesis conversion circuit is connected with the current conversion filtering sampling circuit, the voltage filtering sampling circuit and the output circuit in series, and the power supply end of the signal synthesis conversion circuit is connected with a first power supply and a second power supply in parallel;

the first power supply is formed by connecting a step-down transformer, an AD converter, a first filter, a voltage stabilizing output circuit, a second filter circuit and a linear voltage stabilizing circuit in series, the second power supply is formed by connecting the step-down transformer, the first filter, the voltage stabilizing output circuit, the second filter circuit and the linear voltage stabilizing circuit in series, and the linear voltage stabilizing circuit is connected with a transmitter working circuit through a power connection terminal.

Preferably, the first power supply input terminal is connected with a UPS power supply with alternating current 220V voltage, and the second power supply input terminal is connected with direct current 220V voltage.

Preferably, the power input ends of the first power supply and the second power supply are connected across a piezoresistor.

Preferably, the surface of the wiring terminal board is provided with an alternating current power supply display lamp and a direct current power supply display lamp, so that whether the first power supply and the second power supply work normally or not can be checked conveniently.

Preferably, the current wiring terminal is connected with the current conversion filtering sampling circuit through a current transformer, and the voltage wiring terminal is connected with the voltage filtering sampling circuit through a voltage transformer.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the first power supply and the second power supply are arranged, wherein the input end of the first power supply is connected with the UPS power supply with alternating current 220V voltage, the input end of the second power supply is connected with direct current 220V voltage, so that the power supply is supplied by alternating current 220V and direct current 220V, the alternating current power supply is taken from an uninterruptible power supply UPS, the direct current power supply is taken from a direct current system 220V, the two power supplies are both power supplies with extremely high stability, the probability of faults is very low, the two power supplies are in a logical OR relationship, the transmitter can normally work as long as one power supply is provided, the fault probability of an active transmitter of the generator is reduced, and the running stability of the generator set is improved.

Drawings

FIG. 1 is a schematic diagram of the input/output of the present utility model;

FIG. 2 is a schematic diagram of a first power supply and a second power supply circuit according to the present utility model;

FIG. 3 is a schematic diagram of the transmitter operating circuitry of the present utility model;

fig. 4 is a schematic view of a terminal block structure according to the present utility model.

In the figure: 1. a transmitter housing; 2. a terminal block; 3. transmitter operating circuitry; 4. a first power supply; 5. and a second power supply.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-4, the present utility model provides a technical solution: the double-power active power transmitter comprises a transmitter shell 1, a wiring terminal board 2, a transmitter working circuit 3, a first power supply 4 and a second power supply 5, wherein the wiring terminal board 2 is arranged on the surface of the transmitter shell 1, the transmitter working circuit 3 is arranged in the transmitter shell 1, and the power end of the transmitter working circuit 3 is connected with the first power supply 4 and the second power supply 5;

17 interface terminals are arranged on the surface of the wiring terminal board 2 and connected with the working circuit 3 of the transmitter, and the interface terminals comprise 4 power supply wiring terminals, 2 output wiring terminals, 3 three voltage wiring terminals, 4 current wiring terminals, 3 standby wiring terminals and 1 grounding wire terminal;

the transmitter working circuit 3 comprises a signal synthesis conversion circuit, a current conversion filtering sampling circuit, a voltage filtering sampling circuit and an output circuit, wherein the signal synthesis conversion circuit is connected with the current conversion filtering sampling circuit, the voltage filtering sampling circuit and the output circuit in series, and the power supply end of the signal synthesis conversion circuit is connected with the first power supply 4 and the second power supply 5 in parallel;

the first power supply 4 is formed by connecting a step-down transformer, an AD converter, a first filter, a voltage stabilizing output circuit, a second filter circuit and a linear voltage stabilizing circuit in series, and the second power supply 5 is formed by connecting the step-down transformer, the first filter, the voltage stabilizing output circuit, the second filter circuit and the linear voltage stabilizing circuit in series, and the linear voltage stabilizing circuit is connected with the transmitter working circuit 3 through a power connection terminal.

Further, the input end of the first power supply 4 is connected with a UPS power supply with alternating current 220V voltage, and the input end of the second power supply 5 is connected with direct current 220V voltage.

Further, the power input ends of the first power supply 4 and the second power supply 5 are connected across a piezoresistor.

Further, the surface mounting of the wiring terminal board 2 is provided with an alternating current power supply display lamp and a direct current power supply display lamp, so that whether the first power supply 4 and the second power supply 5 work normally or not can be checked conveniently.

Further, the current wiring terminal is connected with the current conversion filtering sampling circuit through a current transformer, and the voltage wiring terminal is connected with the voltage filtering sampling circuit through a voltage transformer.

According to the utility model, the first power supply 4 and the second power supply 5 are arranged, wherein the input end of the first power supply 4 is connected with a UPS (uninterrupted Power supply) with alternating current 220V voltage, the input end of the second power supply 5 is connected with direct current 220V voltage, so that the power supply of alternating current 220V and direct current 220V is realized, the alternating current power supply is taken from an uninterruptible power supply UPS, the direct current power supply is taken from a direct current system 220V, the two power supplies are both power supplies with extremely high stability, the probability of occurrence of faults is very low, the two power supplies are in a logical or relation, the transmitter can normally work as long as one power supply is normal, the fault probability of an active transmitter of a generator is reduced, and the running stability of a generator set is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dual supply active power changer, includes changer shell (1), binding post board (2), changer work circuit (3), first power supply (4) and second power supply (5), its characterized in that: the surface of the transmitter shell (1) is provided with a wiring terminal board (2), the transmitter working circuit (3) is arranged in the transmitter shell (1), and a power end of the transmitter working circuit (3) is connected with a first power supply (4) and a second power supply (5);

17 interface terminals are arranged on the surface of the wiring terminal board (2), and are connected with the working circuit (3) of the transmitter, and the interface terminals comprise 4 power supply wiring terminals, 2 output wiring terminals, 3 three voltage wiring terminals, 4 current wiring terminals, 3 standby wiring terminals and 1 grounding wire terminal;

the transmitter working circuit (3) comprises a signal synthesis conversion circuit, a current conversion filtering sampling circuit, a voltage filtering sampling circuit and an output circuit, wherein the signal synthesis conversion circuit is connected with the current conversion filtering sampling circuit, the voltage filtering sampling circuit and the output circuit in series, and the power supply end of the signal synthesis conversion circuit is connected with a first power supply (4) and a second power supply (5) in parallel;

the first power supply (4) is formed by connecting a step-down transformer, an AD converter, a first filter, a voltage stabilizing output circuit, a second filter circuit and a linear voltage stabilizing circuit in series, the second power supply (5) is formed by connecting the step-down transformer, the first filter, the voltage stabilizing output circuit, the second filter circuit and the linear voltage stabilizing circuit in series, and the linear voltage stabilizing circuit is connected with the transmitter working circuit (3) through a power connection terminal.

2. The dual-source active power transmitter of claim 1, wherein: the input end of the first power supply (4) is connected with a UPS power supply with alternating current 220V voltage, and the input end of the second power supply (5) is connected with direct current 220V voltage.

3. The dual-source active power transmitter of claim 1, wherein: the power input ends of the first power supply (4) and the second power supply (5) are connected with a piezoresistor in a bridging way.

4. The dual-source active power transmitter of claim 1, wherein: an alternating current power supply display lamp and a direct current power supply display lamp are arranged on the surface of the wiring terminal board (2).

5. The dual-source active power transmitter of claim 1, wherein: the current wiring terminal is connected with the current conversion filtering sampling circuit through a current transformer, and the voltage wiring terminal is connected with the voltage filtering sampling circuit through a voltage transformer.