CN112350375A - Remote starting device and method for black-start diesel generator - Google Patents
Remote starting device and method for black-start diesel generator Download PDFInfo
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- CN112350375A CN112350375A CN202011316926.3A CN202011316926A CN112350375A CN 112350375 A CN112350375 A CN 112350375A CN 202011316926 A CN202011316926 A CN 202011316926A CN 112350375 A CN112350375 A CN 112350375A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/10—The dispersed energy generation being of fossil origin, e.g. diesel generators
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Abstract
The invention relates to a remote starting device of a black start diesel generator, which utilizes an LORA local area network communication module to remotely transmit an instruction to a receiving device of the diesel generator at the top of a dam, the receiving device obtains a diesel generator starting instruction through the LORA and controls a relay to act, a normally open contact accessed to a diesel generator starting control system is closed, the diesel generator starts a starting operation process and automatically builds a voltage to a rated voltage, a worker presses a closing button of a diesel generator outlet switch in a sending device, the normally open contact accessed to a closing channel of the diesel generator outlet switch by the receiving device is controlled to be closed, the diesel generator outlet switch is closed, a plant system recovers power supply, the black start starting process is continuously executed, and the sending device remotely controls the receiving device, so that the inconvenience caused by the worker in field operation is avoided, and the whole black start time is shortened.
Description
Technical Field
The invention belongs to the technical field of black start, and particularly relates to a remote start device and method for a black start diesel generator.
Background
When a power failure accident occurs to a power grid, a unit which can be started in a black mode in the power grid needs to be assisted to recover power supply, so that power is supplied to an important load in time, and the influence on the society is minimized as much as possible. The diesel generator is important for the units which do not have the starting capability of self-energy storage or are not enough to maintain normal starting, and meanwhile, the diesel generator also belongs to a standby power supply for black starting of the self-energy storage unit and is an emergency power supply for the flood discharge door at the top of the dam, so that the flood discharge door is smoothly lifted under the condition that flood occurs and normal working power is lost, and the safety of the dam is ensured. The black start diesel generator is usually installed at the dam crest, the distance from the main building is far away, the main reason of installing at the dam crest also lies in preventing the diesel generator who works as the power station life-saving, can not normally work because of flood submergence, need be brought a great deal of inconvenience by diesel generator recovery station power consumption system power supply when giving black start, the staff need operate to the dam crest, the dam crest is usually not short apart from, start diesel generator not only time-consuming but also hard, be unfavorable for the black start to the requirement that the unit sent out fast, limited recovery time has been occupied. At present, a device for reducing the starting time of a diesel generator is urgently needed, so that the operation efficiency is improved, a power supply is sent out at the fastest speed, the power failure pressure of a power grid is relieved, and the next-stage power grid recovery step is started in advance.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a remote starting device and method for a black-start diesel generator, which can realize remote starting of the black-start diesel generator, control the switch-on of the outlet switch of the diesel generator, recover the power supply of a plant system and ensure the smooth operation of the black start.
The invention is realized by the following technical scheme:
a remote starting device for a black start diesel generator comprises a sending device and a receiving device, wherein the sending device and the receiving device are communicated with a wireless receiving module through a wireless sending module, the sending device is used for sending a starting and stopping instruction of the diesel generator and a switching-on and switching-off instruction of an outlet switch of the diesel generator, and the wireless receiving module is used for receiving the instruction and starting or stopping the diesel generator and the switching-on or switching-off instruction of the outlet switch of the diesel generator;
the transmitting device comprises a first power supply module, a control module, a first main control module and a wireless transmitting module, wherein the first power supply module provides control voltage signals for the control module and provides working power for the first main control module and the wireless transmitting module, four signal output ends of starting, stopping, closing and opening of the control module are respectively connected with four digital quantity input ports of the first main control module, a serial communication port of the first main control module is connected with a serial communication port of the wireless transmitting module, and the first main control module is used for detecting four signal instructions of starting, stopping, closing and opening and forwarding collected instruction information for a carrier through the wireless transmitting module;
the receiving device comprises a second power supply module, a wireless receiving module, a second main control module and a driving module, the second power supply module provides a working power supply for the wireless receiving module, the second main control module and the driving module, a serial communication port of the wireless receiving module is connected with a serial communication port of the second main control module, the wireless receiving module is used for receiving an instruction transmitted by the transmitting device, two digital quantity output ports of the second main control module are respectively connected with two control input ports of the driving module, the second main control module is used for identifying a signal transmitted by the transmitting device, and the driving module is controlled to realize the starting, stopping and switching-on and switching-off control of a diesel generator outlet switch.
Preferably, the first power module adopts a charger with 5V voltage output, the control module is formed by connecting four resistors and buttons in series to form four control circuits, one end of each control circuit is connected with the output anode of the first power module, the other end of each control circuit is connected with the output cathode of the first power module, and the common end of the resistor and the button in each control circuit is connected to the digital quantity input channel of the first main control module as the output end.
Preferably, the first main control module includes a first power interface, a signal transmission interface and a transmission CPU processor, two ports of the first power interface are respectively connected to positive and negative outputs of the first power module, and are used for accessing a power supply for the transmission device, the transmission CPU processor employs an STC8G1K08 single chip microcomputer with eight pins, a serial communication interface of the transmission CPU processor is connected to the wireless transmission module through the signal transmission interface, and the signal transmission interface is used for providing a power supply for the wireless transmission module and switching the serial communication port of the transmission CPU processor to the wireless transmission module.
Preferably, the wireless transmitting module and the wireless receiving module adopt an integrated LORA wireless transmission module, and the transmission distance between the wireless transmitting module and the wireless receiving module is 12 km.
Preferably, the second power module adopts a charger with 5V voltage output, the second main control module comprises a second power interface, a signal receiving interface and a receiving CPU processor, two ports of the second power interface are respectively connected with the positive and negative outputs of the second power module and used for accessing a power supply for the receiving device, the receiving CPU processor adopts an STC8G1K08 single chip microcomputer with eight pins, a serial communication interface of the receiving CPU processor is connected with the wireless receiving module through the signal receiving interface, the signal receiving interface is used for providing power for the wireless receiving module and transmitting a received signal to the second main control module through a serial communication terminal, and the second main control module distinguishes signal types and controls the driving module.
Preferably, the driving module comprises a first driving circuit and a second driving circuit which have the same structure, the first driving circuit and the second driving circuit respectively comprise a triode, a diode, a base resistor, a relay and a contact output interface, the base of the triode in the first driving circuit is connected with the digital output port of the second main control module through the base resistor, the base of the triode in the second driving circuit is connected with the other digital output port of the second main control module through the base resistor, the common end, the normally open contact and the normally closed contact of the relay in the first driving circuit and the second driving circuit are connected with the contact output interface, the contact output interface is used for connecting the contact signal of the relay with an external diesel generator control system or a diesel generator outlet switch control system, one end of a relay coil is connected with the anode of the second power interface, and the other end is connected with the emitter of the triode, the collector of the triode is connected with the negative electrode of the second power interface, the anode of the diode is connected with a common point between the triode and the relay, the cathode of the diode is connected with the positive electrode of the second power interface, and the triode receives digital quantity output of the second main control module and controls the working state of the relay.
Further, the triode is a 9012 type PNP triode, the relay is a single-position 5V relay, the diode is a 1N4008 type diode, and the resistance value of the base resistor is 2 k.
A remote starting method of a black-start diesel generator is based on the device, and comprises the following steps:
1) installing a receiving device in a diesel generator room, connecting a normally open contact of a first path of driving circuit relay in a driving module with a starting instruction interface of the diesel generator, connecting a normally closed contact with a stopping instruction interface of the diesel generator, connecting a normally open contact of a second path of driving circuit relay in the driving module with a closing interface of an outlet switch of the diesel generator, connecting a normally closed contact of a second path of driving circuit relay in the driving module with a separating interface of the outlet switch of the diesel generator, and turning on a working power supply to enter the step 2);
2) placing the sending device on an operation table of a centralized control room, turning on a working power supply, and entering step 3);
3) pressing a starting button of a diesel generator in the control module, executing a normal starting process of the diesel generator, building a machine end voltage to 400V rated voltage, and entering step 4);
4) pressing a closing button of a diesel generator outlet switch in the control module, closing the diesel generator outlet switch, and returning the 400V service power of the main plant to normal, and entering the step 5);
5) after the black start is successful, pressing a switch-off button of an outlet switch of the diesel generator in the control module, switching off the outlet switch of the diesel generator, and entering the step 6);
6) and after the black start succeeds, pressing a stop button at the outlet of the diesel generator in the control module, executing a stop operation process by the diesel generator, and finishing the remote start and stop operation of the black start diesel generator.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention relates to a method for remotely transmitting an instruction to a receiving device of a dam crest diesel generator by a worker through a diesel generator starting button in a sending device by utilizing an LORA local area network communication module, wherein the receiving device obtains the diesel generator starting instruction through the LORA and controls a relay to act, a normally open contact accessed to a diesel generator starting control system is closed, the diesel generator starts a starting operation process and automatically builds a rated voltage, the worker presses a diesel generator outlet switch closing button in the sending device again, the normally open contact accessed to a diesel generator outlet switch closing channel of the receiving device is controlled to be closed, a diesel generator outlet switch is closed, a service system recovers power supply and continues to execute a black start starting process, when the diesel generator needs to be stopped, the worker presses a diesel generator stopping button in the sending device again, and the diesel generator stops smoothly, further staff presses the diesel generator outlet switch opening button in the sending device, the diesel generator outlet switch is opened, the sending device remotely controls the receiving device, inconvenience caused by the fact that the staff go to the site operation is avoided, and the whole black start time is shortened.
Furthermore, the communication module adopts an integrated LORA local area network wireless communication mode, network flow does not need to be purchased, the cost of regularly maintaining and paying the flow every month in the later period is saved, meanwhile, the transmission distance meets the distance from the on-site main workshop to the dam crest, and information can be reliably transmitted.
Furthermore, the CPU processors of the sending device and the receiving device adopt a simple structure, can realize signal detection, sending, receiving and control by only eight pins, and has lower cost and good running stability.
Furthermore, the normally open contact and the normally closed contact of the relay are fully utilized, the normally open contact is started or closed, the normally closed contact is stopped or disconnected, and the relay does not need to be controlled unnecessarily.
Furthermore, all modules of the invention adopt a 5V power supply mode, and meanwhile, the charger is adopted to supply power, so that a special power supply chip is not required to be arranged for the device.
Furthermore, the invention can solve the problem of remote control start and stop of the diesel generator during black start, can be conveniently used on site with black start capability and has high cost performance.
Drawings
Fig. 1 is a schematic block diagram of the apparatus of the present invention.
Fig. 2 is a schematic circuit diagram of a transmitter according to the present invention.
Fig. 3 is a schematic circuit diagram of a receiving device according to the present invention.
In the figure: a transmitting device 1; a receiving device 2; a first power supply module 1-1; a control module 1-2; a first master control module 1-3; a wireless transmission module 1-4; a second power supply module 2-1; a wireless receiving module 2-2; a second master control module 2-3; and a drive module 2-4.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The invention can solve a series of inconvenience caused by the fact that the diesel generator manually moves to the dam crest diesel generator room far away from the main workshop during black start, and improves the black start efficiency.
The invention discloses a remote starting device of a black-start diesel generator, which comprises a sending device 1 and a receiving device 2, wherein the sending device 1 and the receiving device 2 are communicated with a wireless receiving module 2-2 through a wireless sending module 1-4, the sending device 1 is used for sending a starting and stopping instruction of the diesel generator and a switching-on and switching-off instruction of an outlet switch of the diesel generator, and the wireless receiving module 2-2 is used for receiving the instruction and starting or stopping the diesel generator and the outlet switch of the diesel generator which is switched on or switched off.
In this embodiment, the transmitting device 1 includes a first power module 1-1, a control module 1-2, a first main control module 1-3 and a wireless transmitting module 1-4, the first power supply module 1-1 provides a control voltage signal for the control module 1-2, provides a working power supply for the first main control module 1-3 and the wireless transmission module 1-4, the four signal output ends of the control module 1-2 for starting, stopping, closing and opening are respectively connected with the four digital quantity input ports of the first main control module 1-3, the first main control module 1-3 serial communication port is connected with the wireless sending module 1-4 serial communication port, the first main control module 1-3 is used for detecting four signal instructions of input starting, stopping, closing and opening, and forwarding the collected instruction information for the carrier through the wireless sending module 1-4.
In this embodiment, the first power module 1-1 adopts a charger with a 5V voltage output, the control module 1-2 is formed by connecting four resistors and buttons in series to form a four-way control circuit, one end of each control circuit is connected with the output anode of the first power module 1-1, the other end of each control circuit is connected with the output cathode of the first power module 1-1, and the common end of the resistor and the button in each control circuit is used as the output end and is connected to the digital input channel of the first main control module 1-3.
In this embodiment, the first main control module 1-3 includes a first power interface, a signal transmission interface, and a transmission CPU processor, two ports of the first power interface are respectively connected to positive and negative outputs of the first power module 1-1, and are used to access a power supply to the transmission device 1, the transmission CPU processor employs an STC8G1K08 single chip microcomputer with eight pins, a serial communication interface of the transmission CPU processor is connected to the wireless transmission module 1-4 through the signal transmission interface, and the signal transmission interface is used to provide a power supply to the wireless transmission module 1-4 and transfer the serial communication port of the transmission CPU processor to the wireless transmission module 1-4.
In this embodiment, as shown in fig. 2, a first main control module 1-3 in the transmitting apparatus 1 includes a first power interface DC1, a signal transmitting interface L1, and a transmitting CPU processor W1, a first control circuit in the control module 1-2 is formed by connecting a resistor R1 and a button S1 in series, a second control circuit is formed by connecting a resistor R2 and a button S2 in series, a third control circuit is formed by connecting a resistor R3 and a button S3 in series, a fourth control circuit is formed by connecting a resistor R4 and a button S4 in series, a first pin 1 of the first power interface DC1 is connected to a positive electrode of the first power module 1-1, a second pin 2 of the first power interface DC1 is connected to a negative electrode of the first power module 1-1, a first pin 1 of the signal transmitting interface L1 is connected to a first pin 1 of the first power interface DC1, a second pin 4 of the signal transmitting interface L1 is connected to a second pin 2 of the first power interface DC1, and a second pin 2 of the signal transmitting interface L1 is connected to a, The 3 rd pin is respectively connected with the 6 th pin and the 5 th pin of the sending CPU processor W1, one end of a resistor R1, a button S1, a resistor R2, a button S2, a resistor R3, a button S3, a resistor R4 and a button S4 which are connected in series are respectively connected with the 1 st pin of the first power interface DC1, the other end of the resistor R1 is connected with the 2 nd pin of the first power interface DC1, a resistor R1, a button S1, a resistor R2, a button S2, a resistor R3, a button S3, four common connection points of the resistor R4 and the button S4 are respectively connected with the 1 st pin, the 3 rd pin, the 8 th pin and the 7 th pin of the sending CPU processor W1, the 1 st pin, the 3 rd pin, the 8 th pin and the 7 th pin of the sending CPU processor W1 are digital quantity input ports, the 6 th pin and the 5 th pin of the sending CPU processor W1 are serial communication ports, and the signal sending interface L1 is connected with the four wireless.
In this embodiment, the receiving device 2 includes a second power module 2-1, a wireless receiving module 2-2, a second main control module 2-3, and a driving module 2-4, the second power module 2-1 provides a working power for the wireless receiving module 2-2, the second main control module 2-3, and the driving module 2-4, a serial communication port of the wireless receiving module 2-2 is connected to a serial communication port of the second main control module 2-3, the wireless receiving module 2-2 is configured to receive an instruction transmitted by the transmitting device, two digital output ports of the second main control module 2-3 are respectively connected to two control input ports of the driving module 2-4, the second main control module 2-3 is configured to identify a signal transmitted by the transmitting device 1 and control the driving module 2-4 to start the diesel generator, Stopping and controlling the switching on and off of the diesel generator outlet switch.
In this embodiment, the wireless sending module 1-4 and the wireless receiving module 2-2 adopt an integrated LORA wireless transmission module, and the transmission distance between the wireless sending module 1-4 and the wireless receiving module 2-2 is 12 km.
In this embodiment, the second power module 2-1 adopts a charger with a 5V voltage output, the second main control module 2-3 includes a second power interface, a signal receiving interface, and a receiving CPU processor, two ports of the second power interface are respectively connected to positive and negative outputs of the second power module 2-1, and are used for accessing a power supply to the receiving device 2, the receiving CPU processor adopts an STC8G1K08 single chip microcomputer with eight pins, a serial communication interface of the receiving CPU processor is connected to the wireless receiving module 2-2 through the signal receiving interface, the signal receiving interface is used for providing a power supply to the wireless receiving module 2-2 and transmitting a received signal to the second main control module 2-3 through a serial communication terminal, and the second main control module 2-3 distinguishes signal types and controls the driving module 2-4.
In this embodiment, the driving module 2-4 includes a first driving circuit and a second driving circuit with the same structure, the first driving circuit and the second driving circuit include a triode, a diode, a base resistor, a relay and a contact output interface, the base of the triode in the first driving circuit is connected with the digital output port of the second main control module 2-3 through the base resistor, the base of the triode in the second driving circuit is connected with the other digital output port of the second main control module 2-3 through the base resistor, the common, normally open and normally closed contacts of the relay in the first driving circuit and the second driving circuit are connected with the contact output interface, the contact output interface is used for connecting the relay contact signal with an external diesel generator control system or a diesel generator outlet switch control system, one end of the relay coil is connected with the anode of the second power interface, the other end of the diode is connected with an emitting electrode of the triode, a collector electrode of the triode is connected with a negative electrode of the second power interface, an anode of the diode is connected with a common point between the triode and the relay, a cathode of the diode is connected with a positive electrode of the second power interface, and the triode receives 2-3 digital quantity output of the second main control module and controls the working state of the relay.
In this embodiment, the triode is a 9012 type PNP triode, the relay is a single-position 5V type relay, the diode is a 1N4008 type diode, and the resistance value of the base resistor is 2 k.
In this embodiment, as shown in fig. 3, the second main control module 2-3 in the receiving apparatus 2 includes a second power interface DC2, a signal receiving interface L2, and a receiving CPU processor W2, the driving module 2-4 includes a first driving circuit including a transistor Q1, a diode D1, a base resistor R5, a relay U1, and a contact output interface H1, and the second driving circuit includes a transistor Q2, a diode D2, a base resistor R6, a relay U2, and a contact output interface H2; the 1 st pin of a second power interface DC2 is connected with the anode of a second power module 2-1, the 2 nd pin of a second power interface DC2 is connected with the cathode of the second power module 2-1, the 2 nd pin of a receiving CPU processor W2 and the 1 st pin of a signal receiving interface L2 are connected with the 1 st pin of a second power interface DC2, the 4 th pin of the receiving CPU processor W2, a collector of a triode Q1, a collector of a triode Q2 and the 4 th pin of a signal receiving interface L2 are connected with the 2 nd pin of a second power interface DC2, the 2 nd pin and the 3 rd pin of a signal receiving interface L2 are respectively connected with the 6 th pin and the 5 th pin of a receiving CPU processor W2, the base of the triode Q1 is connected with the 8 th pin of the receiving CPU processor W2 through a base resistor R5, the base of the triode Q2 is connected with the 7 th pin of a receiving CPU processor W2 through a base resistor R6, one end of a U1 coil is connected with the second power interface DC2, the other end of the relay U2 is connected with an emitter of a triode Q1, one end of a coil of the relay U2 is connected with a 1 st pin of a second power interface DC2, the other end of the relay U2 is connected with an emitter of a triode Q2, an anode of a diode D1 is connected with the emitter of a triode Q1, a cathode of the diode D1 is connected with a 1 st pin of a second power interface DC2, an anode of a diode D2 is connected with the emitter of a triode Q2, and a cathode of the diode D2; the 1 st pin, the 2 nd pin and the 3 rd pin of the contact output interface H1 are respectively connected with the common end, the normally open contact and the normally closed contact of the relay U1, and the 1 st pin, the 2 nd pin and the 3 rd pin of the contact output interface H2 are respectively connected with the common end, the normally open contact and the normally closed contact of the relay U2; the 1 st pin, the 2 nd pin and the 3 rd pin of the contact output interface H1 are respectively connected with a diesel generator start-stop control common end, a start end and a stop end, the 1 st pin, the 2 nd pin and the 3 rd pin of the contact output interface H2 are respectively connected with a diesel generator outlet switch control common end, a switch-on end and a switch-off end, the 8 th pin and the 7 th pin of a receiving CPU processor W2 are digital quantity output pins, the 6 th pin and the 5 th pin of the receiving CPU processor W2 are serial communication pins, and the signal receiving interface L2 is connected with four ports of a wireless receiving module 2-2.
A remote starting method of a black start diesel generator comprises the following steps:
1) installing a receiving device 2 in a diesel generator room, connecting a normally open contact of a first path of driving circuit relay in a driving module 2-4 with a starting instruction interface of the diesel generator, connecting a normally closed contact with a stopping instruction interface of the diesel generator, connecting a normally open contact of a second path of driving circuit relay in the driving module 2-4 with a closing interface of an outlet switch of the diesel generator, connecting a normally closed contact of a second path of driving circuit relay in the driving module 2-4 with a separating interface of the outlet switch of the diesel generator, and turning on a working power supply to enter a step 2);
2) placing the sending device 1) on an operation table of a centralized control room, turning on a working power supply, and entering step 3);
3) pressing a starting button of a diesel generator in the control module 1-2, executing a normal starting process of the diesel generator, building a voltage at the generator end to 400V rated voltage, and entering a step 4);
4) pressing a closing button of a diesel generator outlet switch in the control module 1-2, closing the diesel generator outlet switch, and returning the 400V service power of the main plant to normal, and entering the step 5);
5) after the black start is successful, pressing a switch-off button of an outlet switch of the diesel generator in the control module 1-2, switching off the outlet switch of the diesel generator, and entering the step 6);
6) and after the black start succeeds, pressing a stop button at the outlet of the diesel generator in the control module 1-2, executing a stop operation process by the diesel generator, and finishing the remote start and stop operation of the black start diesel generator.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. The remote starting device of the black-start diesel generator is characterized by comprising a sending device (1) and a receiving device (2), wherein the sending device (1) and the receiving device (2) are communicated with each other through a wireless sending module (1-4) and a wireless receiving module (2-2), the sending device (1) is used for sending a starting and stopping instruction of the diesel generator and a switching-on and switching-off instruction of an outlet switch of the diesel generator, and the wireless receiving module (2-2) is used for receiving the instruction and starting or stopping the diesel generator and the switching-on or switching-off instruction of the outlet switch of the diesel generator;
the transmitting device (1) comprises a first power supply module (1-1), a control module (1-2), a first main control module (1-3) and a wireless transmitting module (1-4), wherein the first power supply module (1-1) provides control voltage signals for the control module (1-2) and provides working power for the first main control module (1-3) and the wireless transmitting module (1-4), four signal output ends of starting, stopping, closing and opening of the control module (1-2) are respectively connected with four digital quantity input ports of the first main control module (1-3), a serial communication port of the first main control module (1-3) is connected with a serial communication port of the wireless transmitting module (1-4), and the first main control module (1-3) is used for detecting input starting, Stopping, switching on and switching off four-way signal instructions, and forwarding the acquired instruction information for a carrier through a wireless sending module (1-4);
the receiving device (2) comprises a second power supply module (2-1), a wireless receiving module (2-2), a second main control module (2-3) and a driving module (2-4), the second power supply module (2-1) provides working power for the wireless receiving module (2-2), the second main control module (2-3) and the driving module (2-4), a serial communication port of the wireless receiving module (2-2) is connected with a serial communication port of the second main control module (2-3), the wireless receiving module (2-2) is used for receiving an instruction transmitted by the transmitting device, two digital quantity output ports of the second main control module (2-3) are respectively connected with two control input ports of the driving module (2-4), and the second main control module (2-3) is used for identifying signals transmitted by the transmitting device (1), and the driving modules (2-4) are controlled to realize the starting and stopping of the diesel generator and the switching-on and switching-off control of the outlet switch of the diesel generator.
2. The remote starting device of the black-start diesel generator according to claim 1, wherein the first power module (1-1) adopts a charger with 5V voltage output, the control module (1-2) is formed by connecting four resistors and buttons in series to form a four-way control circuit, one end of each control circuit is connected with the positive output electrode of the first power module (1-1), the other end of each control circuit is connected with the negative output electrode of the first power module (1-1), and the common end of the resistor and the button in each control circuit is used as the output end and is connected to the digital input channel of the first main control module (1-3).
3. The remote start device of claim 1, wherein the first main control module (1-3) comprises a first power interface, a signal transmission interface and a transmission CPU processor, two ports of the first power interface are respectively connected with positive and negative outputs of the first power module (1-1) for connecting the power supply to the transmission device (1), the transmission CPU processor adopts an STC8G1K08 single chip microcomputer with eight pins, the serial communication interface of the transmission CPU processor is connected with the wireless transmission module (1-4) through the signal transmission interface, and the signal transmission interface is used for supplying power to the wireless transmission module (1-4) and switching the serial communication port of the transmission CPU processor to the wireless transmission module (1-4).
4. The remote starting device for the black-start diesel generator according to claim 1, wherein the wireless transmitting module (1-4) and the wireless receiving module (2-2) adopt an integrated LORA wireless transmission module, and the transmission distance between the wireless transmitting module (1-4) and the wireless receiving module (2-2) is 12 km.
5. The remote starter of black-start diesel generator according to claim 1, wherein the second power module (2-1) is a charger with 5V output, the second main control module (2-3) comprises a second power interface, a signal receiving interface and a receiving CPU processor, two ports of the second power interface are respectively connected with the positive and negative outputs of the second power module (2-1) for connecting the power supply to the receiver (2), the receiving CPU processor is a STC8G1K08 single chip microcomputer with eight pins, the serial communication interface of the receiving CPU processor is connected with the wireless receiving module (2-2) through the signal receiving interface, the signal receiving interface is used for supplying power to the wireless receiving module (2-2) and transmitting the received signal to the second main control module (2-3) through the serial communication port, the second main control module (2-3) distinguishes the signal type and controls the driving module (2-4).
6. The remote start device of a black-start diesel generator according to claim 1, wherein the driving module (2-4) comprises a first driving circuit and a second driving circuit with the same structure, the first driving circuit and the second driving circuit each comprise a triode, a diode, a base resistor, a relay and a contact output interface, the base of the triode in the first driving circuit is connected with the digital output port of the second main control module (2-3) through the base resistor, the base of the triode in the second driving circuit is connected with the other digital output port of the second main control module (2-3) through the base resistor, the common terminal, the normally open contact and the normally closed contact of the relay in the first driving circuit and the second driving circuit are connected with the contact output interface, the contact output interface is used for connecting the relay contact signal with an external diesel generator control system or a diesel generator outlet switch control system, one end of a relay coil is connected with the anode of the second power interface, the other end of the relay coil is connected with the emitter of the triode, the collector of the triode is connected with the cathode of the second power interface, the anode of the diode is connected with the common point between the triode and the relay, the cathode of the diode is connected with the anode of the second power interface, and the triode receives digital output of the second main control module (2-3) and controls the working state of the relay.
7. The remote start device of a black start diesel generator as claimed in claim 6, wherein said triode is a 9012 type PNP triode, said relay is a single position 5V relay, said diode is a 1N4008 type diode, and said base resistance is 2 k.
8. A remote starting method of a black start diesel generator, which is based on the device of any one of claims 1 to 7, and comprises the following steps:
1) installing a receiving device (2) in a diesel generator room, connecting a normally open contact of a first path of driving circuit relay in a driving module (2-4) with a starting instruction interface of the diesel generator, connecting a normally closed contact with a stopping instruction interface of the diesel generator, connecting a normally open contact of a second path of driving circuit relay in the driving module (2-4) with a closing interface of an outlet switch of the diesel generator, connecting a normally closed contact of a second path of driving circuit relay in the driving module (2-4) with a separating interface of the outlet switch of the diesel generator, opening a working power supply and entering the step 2);
2) placing the sending device (1) on an operation table of a centralized control room, turning on a working power supply, and entering step 3);
3) pressing a starting button of a diesel generator in the control module (1-2), executing a normal starting process of the diesel generator, building a machine end voltage to 400V rated voltage, and entering step 4);
4) pressing a closing button of a diesel generator outlet switch in the control module (1-2), closing the diesel generator outlet switch, and returning the 400V service power of the main plant to normal, and entering the step 5);
5) after the black start is successful, pressing a switch-off button of an outlet switch of the diesel generator in the control module (1-2), switching off the outlet switch of the diesel generator, and entering the step 6);
6) and after the black start succeeds, pressing a stop button at the outlet of the diesel generator in the control module (1-2), executing a stop operation process by the diesel generator, and finishing the remote start and stop operation of the black start diesel generator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011316926.3A CN112350375A (en) | 2020-11-19 | 2020-11-19 | Remote starting device and method for black-start diesel generator |
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| CN202011316926.3A CN112350375A (en) | 2020-11-19 | 2020-11-19 | Remote starting device and method for black-start diesel generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284085A (en) * | 2021-12-24 | 2022-04-05 | 广东电网有限责任公司江门供电局 | Wireless remote control non-power-off transmission switching-on and switching-off device and control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114284085A (en) * | 2021-12-24 | 2022-04-05 | 广东电网有限责任公司江门供电局 | Wireless remote control non-power-off transmission switching-on and switching-off device and control method |
| CN114284085B (en) * | 2021-12-24 | 2024-03-08 | 广东电网有限责任公司江门供电局 | Wireless remote control uninterrupted power transmission switching-on/off device and control method |
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