CN104362728A - Power loss control device of full-aperture power generation data collecting system - Google Patents

Abstract

The invention provides a power loss control device of a full-aperture power generation data collecting system. The power loss control device comprises an alternating power loss voltage support circuit, an alternating power loss monitoring loop, a power generation data collecting module, a signal processing module and a signal sending module. The alternating power loss voltage support circuit comprises an alternating-current output end, a switch power supply, a direct-current output end, a super-capacitor module and a direct-current controller. The alternating-current output end is connected with the direct-current output end through the switch power supply. The super-capacitor module is connected with the direct-current output end through the direct-current controller. The alternating-current output end outputs the alternating current to supply power. The direct-current output end outputs the voltage stabilizing direct current to supply power. The alternating power loss monitoring loop comprises an intermediate relay internally provided with a coil and a contact. The coil is connected with the alternating-current output end. The contact is connected with the signal processing module. The power generation data collecting module is connected with the signal processing module. The signal processing module is connected with the signal sending module. By the use of the power loss control device, relayed power supply is achieved.

Description

A power failure control device for a full-bore power generation data acquisition system

technical field

The invention relates to the technical field of power generation data acquisition, in particular to a power failure control device for a full-caliber power generation data acquisition system.

Background technique

The existing STDA2000 full-caliber power generation data acquisition module, using Beidou satellite transmission technology, performs data monitoring and centralized transmission processing on a large number of small power plants in remote areas, providing a stable and reliable solution for small power plant monitoring that meets the safety requirements of the power industry. Low cost overall solution. However, due to the discontinuity of power supply in small stations, power outages often occur, and the system will stop working at any time due to power failure during use, resulting in the signal receiving end not being able to receive data information, and it is impossible to judge whether it is a communication failure, equipment failure or a small factory. Station power outage. This requires that the system can delay the power supply for a period of time when the plant is powered off, and send the last collected data and alarm information during the power outage to the receiving end of the command center.

Contents of the invention

Based on the technical problems existing in the background technology, the present invention proposes a power failure control device for a full-caliber power generation data acquisition system.

A power loss control device for a full-caliber power generation data acquisition system proposed by the present invention includes: an AC power loss voltage support circuit, an AC power loss monitoring circuit, a power generation data acquisition module, a signal processing module, and a signal transmission module;

The AC power loss voltage support circuit includes: AC output terminal, switching power supply, DC output terminal, super capacitor module and DC controller; the AC output terminal is connected to the DC output terminal through the switching power supply; the super capacitor module is connected to the DC output terminal through the DC controller terminal; the AC output terminal outputs AC power for power supply, and the DC output terminal outputs regulated DC power for power supply;

The AC power loss monitoring circuit includes an intermediate relay. The intermediate relay is provided with a coil and a contact. The contact has a first state and a second state; The switching of the state sends a signal to the signal processing module;

The power generation data acquisition module is connected to the signal processing module, and the signal processing module is connected to the signal sending module;

In the normal power supply state of AC power, the AC output terminal outputs AC power, and after the switching power supply rectifies the AC power, the DC output terminal outputs DC power as the power supply, and the DC power is charged to the supercapacitor module through the DC controller; the AC power supplies the coil, and the contacts realize the first Status; the power generation data acquisition module collects power generation data and sends it to the signal processing module, and the signal processing module processes the power generation data and sends it out through the signal sending module;

In the state of AC power failure, the switching power supply loses power, the supercapacitor module discharges and is converted by the DC controller and then output through the DC output terminal; the coil loses power, and the contacts realize the second state so that the signal processing module receives the switching signal, the signal The processing module generates a power failure alarm signal and sends it out through the signal sending module; the power generation data acquisition module collects power generation data and sends it to the signal processing module, and the signal processing module processes the power generation data and sends it out through the signal sending module.

Preferably, the contact is a normally closed contact, the first state of which is an open state, and the second state is a closed state.

Preferably, the contact is a normally open contact, the first state of which is a closed state, and the second state is an open state.

Preferably, the power generation data acquisition module is a power generation data sensor or a power generation data transmitter.

Preferably, the signal sending module adopts a Beidou user machine.

Preferably, the signal sending module is connected to a direct current output terminal to draw electric energy.

Preferably, the signal processing module is connected to a direct current output terminal to draw electric energy.

In the present invention, a supercapacitor module is provided as a backup power supply, and a DC controller is provided to assist the supercapacitor module to charge and discharge. When charging, the DC controller draws electric energy from the DC output terminal to charge the supercapacitor module to store electricity; When discharging, the supercapacitor module is discharged and converted into regulated DC by the DC controller, and then output from the DC output terminal to supply power for subsequent equipment. In the present invention, the backup power supply stores electricity through the main power supply, and releases the stored electric energy to replace the main power supply when the main power supply loses power, which not only ensures the normal operation of subsequent power-consuming equipment when the main power supply fails, avoids Losses caused by power failures also avoid the need to design a backup power supply separately, which is conducive to reducing costs.

The present invention uses a supercapacitor as an energy storage element, which is especially suitable for small-scale power plants and stations. It provides delayed power supply for the power failure control device, so that the power failure control device can inform the command center of the power failure accident in time, and it is convenient for the command center to grasp the status of the small power plant. Real-time status, timely maintenance for uncontrolled power outages, to ensure the normal power production of small plants and stations. At the same time, the supercapacitor can also meet the constant current power supply in the standby state of the STDA2000 full-caliber power generation data acquisition system and the high current power supply at the moment of data transmission, so as to avoid the situation that the power generation data collected by the acquisition system cannot be sent in time due to power failure accidents.

In the present invention, while the power generation data is collected by the power generation data acquisition module, the power failure signal is also collected through the intermediate relay to monitor the power failure state, which provides a double guarantee for the timely discovery of power failure information, and avoids the failure of the power failure information to be ignored. The condition of timely repairs.

Description of drawings

Fig. 1 is a schematic structural diagram of a power failure control device of a full-caliber power generation data acquisition system proposed in embodiment 1;

FIG. 2 is a schematic structural diagram of a power failure control device of a full-caliber power generation data acquisition system proposed in Embodiment 2. FIG.

Detailed ways

Example 1

Referring to Fig. 1, a power loss control device of a full-caliber power generation data acquisition system proposed by the present invention includes: AC power loss voltage support circuit, AC power loss monitoring circuit, power generation data acquisition module, signal processing module and signal transmission module.

The AC power failure voltage support circuit includes: an AC output terminal AC, a switching power supply, a direct current output terminal DC, a supercapacitor module and a DC controller. The alternating current output terminal AC is connected to the direct current output terminal DC through the switching power supply, and the supercapacitor module is connected to the direct current output terminal DC through the direct current controller.

The alternating current output terminal AC outputs alternating current for power supply. The switching power supply can rectify the alternating current and convert it into direct current through the direct current output terminal DC output. The regulated direct current output by the direct current output terminal DC can supply power for subsequent power consumption equipment. The supercapacitor module can be used as a backup power supply, and can be charged and discharged through the DC controller. When charging, the DC controller draws power from the DC output terminal DC to charge the supercapacitor module for storage; when discharging, the supercapacitor module After discharging and converting to regulated direct current by the direct current controller, the direct current output terminal DC outputs power for subsequent equipment.

The AC power loss monitoring circuit includes an intermediate relay. The intermediate relay is provided with a coil KA and a normally closed contact KA1. The coil KA is connected to the AC output terminal AC, and the normally closed contact KA1 is connected to the signal processing module.

The normally closed contact KA1 has the characteristics of being open when it is energized and closing when it is deenergized, so it has a first state and a second state, the first state is an open state, and the second state is a closed state. That is, when the coil KA is energized, an electric potential field is generated, and the normally closed contact KA1 is disconnected due to the action of the electric potential field to realize the first state; when the coil KA is de-energized, the electric potential field disappears, and the normally closed contact KA1 is closed to realize the second state. The signal processing module can receive the switch signal "1" as the normally closed contact KA1 is closed, so as to obtain the coil KA de-energization information. In this embodiment, the coil KA is powered by the AC output terminal AC, and if the coil KA is de-energized, it means that the AC power is de-energized.

The power generation data acquisition module is connected to the signal processing module, and the signal processing module is connected to the signal sending module. The power generation data acquisition module is a power generation data sensor, and the signal transmission module uses a Beidou user machine.

The power generation data acquisition module is used to collect power generation data and send it to the signal processing module. The signal processing module processes the power generation data to extract target information and then sends it to the command center and other target objects through the signal transmission module, so that the command center can keep abreast of the power generation situation.

In this embodiment, the AC power failure signal collected by the signal processing module through the intermediate relay is also sent to the command center through the signal sending module, so that the command center can make maintenance in time.

In this embodiment, both the signal processing module and the signal sending module are connected to the direct current output terminal DC to draw electric energy.

The specific working principle of the power failure control device of the full-aperture power generation data acquisition system provided in this embodiment is as follows.

In the normal power supply state of alternating current, the alternating current output terminal AC outputs alternating current, and the switching power supply rectifies the alternating current, and the direct current output terminal DC outputs direct current as the power supply, and the direct current is charged to the supercapacitor module through the direct current controller; the alternating current supplies power for the coil KA, which is normally closed The contact KA1 is powered off to realize the first state; the power generation data acquisition module collects power generation data and sends it to the signal processing module, and the signal processing module processes the power generation data and sends it out through the signal sending module.

In the state of AC power failure, the switching power supply loses power, and the super capacitor module as a backup power supply is used for delayed power supply. Specifically, the super capacitor module is discharged and converted by the DC controller and then output through the DC output terminal DC to maintain the DC output terminal DC. normal power supply; the coil KA is de-energized, and the normally closed contact KA1 is de-energized and closed to realize the second state, so that the signal processing module receives the switching signal "1" as the power-off signal, and the signal processing module generates a power-off alarm signal and passes The signal sending module sends it out; the power generation data acquisition module sends the latest power generation data collected before the AC power failure to the signal processing module, and the signal processing module processes the power generation data and sends it to the command center through the signal sending module, so that the command center can grasp the power failure. In addition, the power generation data acquisition module can continue to collect power generation data so that the command center can grasp the latest information in real time.

Example 2

Referring to Fig. 2, a power loss control device of a full-caliber power generation data acquisition system proposed by the present invention includes: AC power loss voltage support circuit, AC power loss monitoring circuit, power generation data acquisition module, signal processing module and signal transmission module.

The AC power failure voltage support circuit includes: an AC output terminal AC, a switching power supply, a direct current output terminal DC, a supercapacitor module and a DC controller. The alternating current output terminal AC is connected to the direct current output terminal DC through the switching power supply, and the supercapacitor module is connected to the direct current output terminal DC through the direct current controller.

The alternating current output terminal AC outputs alternating current for power supply. The switching power supply can rectify the alternating current and convert it into direct current through the direct current output terminal DC output. The regulated direct current output by the direct current output terminal DC can supply power for subsequent power consumption equipment. The supercapacitor module can be used as a backup power supply, and can be charged and discharged through the DC controller. When charging, the DC controller draws power from the DC output terminal DC to charge the supercapacitor module for storage; when discharging, the supercapacitor module After discharging and converting to regulated direct current by the direct current controller, the direct current output terminal DC outputs power for subsequent equipment.

The AC power loss monitoring circuit includes an intermediate relay. The intermediate relay is provided with a coil KA and a normally open contact KA1'. The coil KA is connected to the AC output terminal AC, and the normally open contact KA1' is connected to the signal processing module.

The normally open contact KA1' has the characteristics of being closed when it is energized and opening when it is de-energized, so it has a first state and a second state, the first state is a closed state, and the second state is an open state. That is, when the coil KA is energized, an electric potential field is generated, and the normally open contact KA1' is closed due to the action of the electric potential field to realize the first state; when the coil KA is de-energized, the electric potential field disappears, and the normally open contact KA1' is disconnected to realize the second state. state. The signal processing module can receive the switch signal "0" as the normally open contact KA1' is disconnected, so as to obtain the coil KA de-energization information. In this embodiment, the coil KA is powered by the AC output terminal AC, and if the coil KA is de-energized, it means that the AC power is de-energized.

The power generation data acquisition module is connected to the signal processing module, and the signal processing module is connected to the signal sending module. The power generation data acquisition module is a power generation data transmitter, and the signal transmission module uses a Beidou user machine.

The power generation data acquisition module is used to collect power generation data and send it to the signal processing module. The signal processing module processes the power generation data to extract target information and then sends it to the command center and other target objects through the signal transmission module, so that the command center can keep abreast of the power generation situation.

In this embodiment, the AC power failure signal collected by the signal processing module through the intermediate relay is also sent to the command center through the signal sending module, so that the command center can make maintenance in time.

In this embodiment, both the signal processing module and the signal sending module are connected to the direct current output terminal DC to draw electric energy.

The specific working principle of the power failure control device of the full-aperture power generation data acquisition system provided in this embodiment is as follows.

In the normal power supply state of alternating current, the alternating current output terminal AC outputs alternating current, and the switching power supply rectifies the alternating current, and the direct current output terminal DC outputs direct current as the power supply, and the direct current is charged to the supercapacitor module through the direct current controller; the alternating current supplies power for the coil KA, normally open The contact KA1' is energized and closed to realize the first state and send the switch signal "1" to the signal processing module; the power generation data acquisition module collects the power generation data and sends it to the signal processing module, and the signal processing module processes the power generation data and passes the signal The sending module sends out.

In the state of AC power failure, the switching power supply loses power, and the super capacitor module as a backup power supply is used for delayed power supply. Specifically, the super capacitor module is discharged and converted by the DC controller and then output through the DC output terminal DC to maintain the DC output terminal DC. normal power supply; the coil KA loses power, and the normally open contact KA1' loses power and disconnects to realize the second state, so that the signal processing module receives the switching signal "0" as the power-off signal, and the signal processing module generates a power-off alarm signal And send it out through the signal sending module; the power generation data acquisition module sends the latest power generation data collected before the AC power failure to the signal processing module, the signal processing module processes the power generation data and sends it to the command center through the signal sending module, so that the command center Grasp the power failure situation, make timely judgment and processing; in addition, the power generation data acquisition module can continue to collect power generation data, so that the command center can grasp the latest information in real time.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (7)

1. a power loss control apparatus for unified generating data acquisition system, is characterized in that, comprising: exchange dead electricity voltage support circuit, exchange dead electricity monitoring circuit, generate electricity data acquisition module, signal processing module and signal transmitting module;

Exchange dead electricity voltage support circuit to comprise: alternating current output (AC), Switching Power Supply, DC output end (DC), super capacitor module and DC controller; Alternating current output (AC) connects DC output end (DC) by Switching Power Supply; Super capacitor module connects DC output end (DC) by DC controller; Alternating current output (AC) output AC electricity is powered, and DC output end (DC) exports direct current of voltage regulation and powers;

Exchange dead electricity monitoring circuit and comprise auxiliary relay, be provided with coil (KA) and contact (KA1) in auxiliary relay, contact (KA1) has the first state and the second state; Coil (KA) connects alternating current output (AC), and contact (KA1) connection signal processing module also carries signal by the switching of the first state and the second state to signal processing module;

Generating data acquisition module connection signal processing module, signal processing module connection signal sending module;

Under alternating current normal power supply state, alternating current output (AC) output AC electricity, Switching Power Supply exports direct current as power supply to after AC rectification by DC output end (DC), and direct current charges to super capacitor module through DC controller; Alternating current is coil (KA) power supply, and contact (KA1) realizes the first state; Generating data collecting module collected generating Data Concurrent gives signal processing module, and signal processing module is sent by signal transmitting module after processing generating data;

Under alternating current power failure state, Switching Power Supply dead electricity, the electric discharge of super capacitor module also exports by passing through DC output end (DC) after DC controller conversion; Coil (KA) dead electricity, contact (KA1) realizes the second state makes signal processing module receive on-off model, and signal processing module is generated dead electricity alarm signal and sent by signal transmitting module; Generating data collecting module collected generating Data Concurrent gives signal processing module, and signal processing module is processed generating data and sent by signal transmitting module.

2. the power loss control apparatus of unified generating data acquisition system as claimed in claim 1, is characterized in that, contact (KA1) is normally-closed contact, and its first state is off state, and the second state is closure state.

3. the power loss control apparatus of unified generating data acquisition system as claimed in claim 1, is characterized in that, contact (KA1) is normally opened contact, and its first state is closure state, and the second state is off state.

4. the power loss control apparatus of unified generating data acquisition system as claimed in claim 1, is characterized in that, generating data acquisition module is generating data pick-up or generating data transmitter.

5. the power loss control apparatus of unified generating data acquisition system as claimed in claim 1, is characterized in that, signal transmitting module adopts Beidou subscriber machine.

6. the power loss control apparatus of the unified generating data acquisition system as described in any one of claim 1 to 5, is characterized in that, signal transmitting module connects DC output end (DC) to draw electric energy.

7. the power loss control apparatus of the unified generating data acquisition system as described in any one of claim 1 to 5, is characterized in that, signal processing module connects DC output end (DC) to draw electric energy.