CN109672376A - Generating set and control unit and method - Google Patents
Generating set and control unit and method Download PDFInfo
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- CN109672376A CN109672376A CN201910087337.3A CN201910087337A CN109672376A CN 109672376 A CN109672376 A CN 109672376A CN 201910087337 A CN201910087337 A CN 201910087337A CN 109672376 A CN109672376 A CN 109672376A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
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Abstract
The present invention provides a kind of generating set and control units and method, wherein the generator set control unit includes with lower module: voltage signal obtains module: obtain the voltage detection signal of multiple power circuits: current signal obtains module: obtaining the current detection signal of multiple power circuits；Power supply signal processing module: handling voltage detection signal and current detection signal, obtains power signal；Circuit adjustment module: being compared power signal with the nominal total power value of setting, and one or more power circuits in multiple power circuits is enabled to unload separating brake or load of closing a floodgate.The present invention carries out the improvement of hardware facility to existing controller, cancels alternating current and detects port, increases the voltage of three-phase generation power supply, current detecting all the way, is arranged by program and guarantees that two-way power supply can be monitored simultaneously.
Description
Technical field
The present invention relates to electrical generator fields, and in particular, to a kind of generating set and control unit and method, especially one
The single double-deck magnetic field orthogonal winding magneto alternator group of kind and control unit and method.
Background technique
The controller for being currently used for diesel generating set mainly individually detects generator three-phase electricity, all the way generator all the way
Three-phase electricity adds city's electro-detection；Both controllers can only carry out power supply monitoring all the way to generating set, be unable to satisfy single bilayer
The use demand of magnetic field orthotropic winding permanent magnet Synchronous generator.
Patent document CN109149763A provides a kind of generating set self-starting intelligence control system, which includes can
Programmed logic controller；The programmable logic controller (PLC) is connect with generator set controller；The generator set controller with
Generating set connection；The programmable logic controller (PLC) be used for according to unidirectional alternating current testing result, three-phase mains testing result with
And passive dry node, the dry node of DCS triggering whether are accessed, output action signal is to generator set controller, generator set control
Device receives control generating set starting after the action signal.Multiple interfaces are reserved according to the patent document readme arbitrarily to connect for client
Line uses, and can adapt to a variety of self-starting states, facilitates the use of client, be easy to later maintenance.But the patent document is still
Dependent on alternating current testing result, single double-deck magnetic field orthogonal winding magneto alternator group can not be suitable for.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of generating set and its controller and work sides
Method.
The generator set control unit provided according to the present invention includes generator operation control module, the generator fortune
Row control module includes with lower module:
Voltage signal obtains module: obtain the voltage monitoring signal of multiple power generating source circuits:
Current signal obtains module: obtaining the current monitor signal of multiple power generating source circuits；
Power supply signal processing module: voltage monitoring signal is handled with current monitor signal, obtains power generating source function
Rate signal；
Circuit adjustment module: power generating source power signal is compared with setting total power value, enables multiple power generating sources
One or more power generating source circuits unloading separating brake in circuit or load of closing a floodgate.
Preferably, in the power supply signal processing module, according to the corresponding current monitor signal of multiple power generating source circuits
Waveform and voltage monitoring signal waveform, calculate waveform phase difference and virtual value and power generating source circuit in power generating source
Active power, reactive power and apparent energy；
Include the first power circuit and second source circuit in multiple power generating source circuits, in circuit adjustment module, enables
Second source circuit carries out separating brake unloading or load of closing a floodgate.
Preferably, also include startup of unit control module, startup of unit control module includes with lower module:
Motor starting module: enabling starter motor work once electrified and successively drives engine and generator；
Generator starting judgment module: judge whether generator starts success；If so, executing generator operation control mould
Block；If it is not, then executing number of starts judgment module；
Number of starts judgment module: it after undergoing the interval time of setting, returns to execution generator starting judgment module and goes forward side by side
Row recycle time counts, until generating alarm stopping signal after reaching setting recycle time.
Preferably, it in the motor starting module, successively executes booting delay, execute preheating delay so as to engine
Input air is heated, and enables throttle relay export so that throttle solenoid valve work once electrified, execution start delay, order starts horse
Up to work once electrified.
Preferably, the generator starting judgment module includes any or all following module:
Frequency condition judgment module: the voltage waveform signal of power generating source in power generating source circuit is obtained, according to electricity
Corrugating curve signal obtains live electrical power frequency values, judges generator according to live electrical power frequency values and setting supply frequency value
Whether starting is successful；
Speed conditions judgment module: the engine rotational speed signal from speed probe is obtained, is believed according to engine speed
Number with setting speed value judge whether generator starts success.
It preferably, also include compressor emergency shutdown control module, compressor emergency shutdown control module includes any or all following mould
Block:
Hard stop module: enabling power generating source circuit directly unload separating brake, executes and shuts down delay, and throttle relay is enabled to stop
Output；
It is cooling to shut down module: enable power generating source circuit carry out unloading separating brake according to setting rule, after executing cooling delay, then
It executes and shuts down delay, throttle relay is enabled to stop output.
Preferably, also include engine operating parameter monitoring modular: obtain it is following any one or appoint multiple signals: engine
Tach signal, engine cylinder head temperature signal, engine oil pressure signal, coolant liquid detection signal, air inlet detect signal.
The present invention also provides a kind of generating sets, include the first power circuit, second source circuit and controller, institute
Stating controller includes above-mentioned generator set control unit.
The first generator, Current Transmit 1 and A.C. contactor KM1 are provided on first power circuit；The
The second generator, Current Transmit 2 and A.C. contactor KM2 are provided on two power circuits；
Controller also includes the first generating voltage detection port, the first generation current detection port, the inspection of the second generating voltage
Survey port, the second generation current detects port；
First generating voltage detection port is connected to the first power circuit, and the first generation current detection port is connected to electric current
Mutual inductor CT1, the second generating voltage detection port are connected to second source circuit, and the second generation current detection port is connected to electricity
Current transformer CT2.
It preferably, also include engine, starter motor, charger, sensor, relay, controller power source, air quality
Switch S1 and water level switch SB1；The engine includes throttle solenoid valve and fuel pump；
The sensor includes speed probe, temperature sensor, pressure sensor；
The controller includes relay output end mouth, On-off signal port, sensor port and communication port；
Relay output end mouth includes throttle relay port, Starter relay port, first via power supply divide-shut brake
Relay port, the second road power supply divide-shut brake relay port；
Sensor port includes speed probe port, temperature sensor port, pressure sensor port；
Communication port includes following any or various ports: RS485 communication port, the port RS232, CAN communication end
Mouth, usb communication port.
The present invention also provides a kind of generator set control methods, run rate-determining steps, the generator comprising generator
Operation rate-determining steps comprise the steps of:
Voltage signal obtaining step: the voltage monitoring signal of multiple power generating source circuits is obtained:
Current signal obtaining step: the current monitor signal of multiple power generating source circuits is obtained；
Power supply signal processing step: voltage monitoring signal is handled with current monitor signal, obtains power generating source function
Rate signal；
Circuit regulating step: power generating source power signal is compared with setting total power value, enables multiple power generating sources
One or more power generating source circuits unloading separating brake in circuit or load of closing a floodgate.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, the present invention carries out the improvement of hardware facility to existing controller, cancels alternating current and detects port, increases three-phase all the way
The voltage of power generating source, current detecting are arranged by program and guarantee that two-way power supply can be monitored simultaneously；
2, it is counted by the parameter to two-way power supply, the calculating of parameter is carried out using voltage, current waveform, is conducive to
Carry out fault alarm setting.
3, when general power is more than setting value, auxiliary circuit can be unloaded separating brake automatically by controller, when general power is restored
Auxiliary circuit can be subjected to automatic closing load when to engine limit of power, to guarantee the electrical stability of main circuit.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is generator unit structure schematic diagram provided by the invention；
Fig. 2 is generator set control method flow diagram；
Fig. 3 is 1 to No. 27 port explanation on controller in embodiment；
Fig. 4 is 28 to No. 46 port explanations on controller in embodiment.
It is shown in figure:
First generator, 1 speed probe 8
Second generator, 2 temperature sensor 9
3 pressure sensor 10 of starter motor
4 RS485 communication port 11 of charger
5 port RS232 12 of control panel power supply
6 CAN communication port 13 of throttle solenoid valve
7 usb communication port 14 of fuel pump
Relay 15
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
Generating set provided by the invention include the first power circuit, second source circuit and controller, described first
The first generator 1, Current Transmit 1 and A.C. contactor KM1 are provided on power circuit；It is arranged on second source circuit
There are the second generator 2, Current Transmit 2 and A.C. contactor KM2.In addition, generating set also includes engine, starts horse
Up to 3, charger 4, sensor, relay 15, controller power source 5, air quality switch S1 and water level switch SB1.The hair
Motivation includes throttle solenoid valve 6 and fuel pump 7, and sensor includes speed probe 8, temperature sensor 9, pressure sensor 10
Correspondingly, the first generating voltage detection port, the first generation current detection port, the are provided on the controller
Two generating voltages detect port, the second generation current detects port；First generating voltage detection port is connected to the first power supply electricity
Road, the first generation current detection port are connected to Current Transmit 1, and the second generating voltage detection port is connected to second source
Circuit, the second generation current detection port are connected to Current Transmit 2.In addition, also having relay defeated on the controller
Exit port, On-off signal port, sensor port and communication port.Wherein, relay output end mouth includes throttle relay
Device port, Starter relay port, first via power supply divide-shut brake relay port, the second road power supply divide-shut brake relay end
Mouthful；Sensor port includes speed probe port, temperature sensor port, pressure sensor port；Communication port include with
Under it is any or appoint various ports: RS485 communication port 11, the port RS232 12, CAN communication port 13, usb communication port 14.
As shown in Fig. 1, Fig. 3 and Fig. 4, the connection relationship of main component in generating set are as follows: the first power circuit, second
First via power supply divide-shut brake relay K2, the second road power supply divide-shut brake relay K3, two electricity are respectively arranged on power circuit
Source divide-shut brake relay is then respectively connected to first via power supply divide-shut brake relay port on controller, the second road power supply division
Lock relay port；Fuse FUSE1, fuse FUSE2 are also respectively provided on first power circuit, second source circuit；
The throttle solenoid valve 6 is connected to throttle relay port by the throttle relay being arranged, and starter motor 3 then passes through arranging
Starter relay is connected to Starter relay port, and starter motor 3 is equipped with electronic type speed switch ASS.Control
Device power supply 5 be additionally provided with fuse FUSE3 and switch QA on the route that working power access interface is connect on controller；It fills
Motor 4 is for charging to controller power source 5, the field power supply output port of the W/L termination controller of charger 4, charging
4 anode of machine is provided with fuse FUSE4 on the route being attached with controller；The speed probe 8 is passed comprising magnetic force
Sensor, and it is connected to speed probe port；Other constructions of switch or sensor are also respectively connected to hold accordingly on controller
Mouthful.
Controller includes generator set control unit, and the function that the generator set control unit is included mainly has: electricity
Press detection, current detecting, analog input, On-off signal and relay output etc..The effect of controller in generating set
Mainly are as follows: the starting of engine and the operating parameter monitoring for shutting down control, the monitoring of power generation electromechanical parameters and engine.Engine
Starting control include: the pre- heat function of engine charge, oil preheating function, pre- pump oil function, start jiggering function and throttle
Power of electromagnetic valve output etc.；The monitoring of power generation electromechanical parameters includes: generator voltage, electric current, frequency and power monitoring；Engine
Operating parameter include: engine speed, engine cylinder head temperature, engine oil pressure, coolant liquid detection and air inlet detection etc..
Specifically, generator set control unit mainly includes following module:
1) startup of unit control module, startup of unit control module include with lower module: motor starting module: enabling and start horse
Up to work once electrified and successively drive engine and generator；Generator starting judgment module: judge whether generator starts success；
If so, executing generator operation control module；If it is not, then executing number of starts judgment module；Number of starts judgment module: warp
After going through the interval time of setting, returns and execute generator starting judgment module and carry out recycle time counting, until reaching setting
Alarm stopping signal is generated after recycle time.Preferably, it in the motor starting module, successively executes booting delay, execute in advance
Heat delay so that the input air to engine heats, enable throttle relay export so that throttle solenoid valve work once electrified,
It executes and starts delay, enable starter motor work once electrified.Preferably, the generator starting judgment module include it is following any one or
Whole modules: frequency condition judgment module: the voltage waveform signal of power generating source in power generating source circuit is obtained, according to electricity
Corrugating curve signal obtains live electrical power frequency values, judges generator according to live electrical power frequency values and setting supply frequency value
Whether starting is successful；Speed conditions judgment module: obtaining the engine rotational speed signal from speed probe, is turned according to engine
Fast signal and setting speed value judge whether generator starts success.
2) generator operation control module, generator operation control module include with lower module: voltage signal obtains module:
Obtain the voltage monitoring signal of multiple power generating source circuits: current signal obtains module: obtaining the electricity of multiple power generating source circuits
Flow monitoring signals；Power supply signal processing module: voltage monitoring signal is handled with current monitor signal, obtains power generating source
Power signal；Circuit adjustment module: power generating source power signal is compared with setting total power value, enables multiple power generating sources
One or more power generating source circuits unloading separating brake in circuit or load of closing a floodgate.Preferably, the power supply signal processing module
In, according to the waveform of the waveform of the corresponding current monitor signal of multiple power generating source circuits and voltage monitoring signal, calculate waveform
Active power, reactive power and the apparent energy of power generating source in phase difference and virtual value and power generating source circuit；Multiple hairs
Include the first power circuit and second source circuit in electric power circuit, in circuit adjustment module, enable second source circuit into
The unloading of row separating brake or load of closing a floodgate.In practical application, power generating source circuit can be positioned in advance, such as the first power supply is electric
Road is positioned as main power circuit, and second source circuit is positioned as auxiliary power circuit.
3) compressor emergency shutdown control module, compressor emergency shutdown control module include any or all following module: hard stop
Module: enabling power generating source circuit directly unload separating brake, executes and shuts down delay, and throttle relay is enabled to stop output；It is cooling to shut down mould
Block: enabling power generating source circuit carry out unloading separating brake according to setting rule, after executing cooling delay, then executes shutdown delay, enables oil
Door relay stops output.
In addition, generator set control unit also includes engine operating parameter monitoring modular: obtain it is following any one or appoint
Multiple signals: engine rotational speed signal, engine cylinder head temperature signal, engine oil pressure signal, coolant liquid detection signal, air inlet inspection
Survey signal.
As shown in Fig. 2, the present invention also provides a kind of generator set control methods, mainly include following steps:
1) startup of unit rate-determining steps, startup of unit rate-determining steps comprise the steps of: motor starting step: enabling and start horse
Up to work once electrified and successively drive engine and generator；Generator starting judgment step: judge whether generator starts success；
If so, executing generator runs rate-determining steps；If it is not, then executing number of starts judgment step；Number of starts judgment step: warp
After going through the interval time of setting, returns and execute generator starting judgment step and carry out recycle time counting, until reaching setting
Alarm stopping signal is generated after recycle time.Preferably, it in the motor starting step, successively executes booting delay, execute in advance
Heat delay so that the input air to engine heats, enable throttle relay export so that throttle solenoid valve work once electrified,
It executes and starts delay, enable starter motor work once electrified.Preferably, the generator starting judgment step include it is following any one or
Overall Steps: frequency condition judgment step: the voltage waveform signal of power generating source in power generating source circuit is obtained, according to electricity
Corrugating curve signal obtains live electrical power frequency values, judges generator according to live electrical power frequency values and setting supply frequency value
Whether starting is successful；Speed conditions judgment step: obtaining the engine rotational speed signal from speed probe, is turned according to engine
Fast signal and setting speed value judge whether generator starts success.
2) generator runs rate-determining steps, and generator operation rate-determining steps comprise the steps of: voltage signal obtaining step:
It obtains the voltage monitoring signal of multiple power generating source circuits: current signal obtaining step: obtaining the electricity of multiple power generating source circuits
Flow monitoring signals；Power supply signal processing step: voltage monitoring signal is handled with current monitor signal, obtains power generating source
Power signal；Circuit regulating step: power generating source power signal is compared with setting total power value, enables multiple power generating sources
One or more power generating source circuits unloading separating brake in circuit or load of closing a floodgate.Preferably, the power supply signal processing step
In, according to the waveform of the waveform of the corresponding current monitor signal of multiple power generating source circuits and voltage monitoring signal, calculate waveform
Active power, reactive power and the apparent energy of power generating source in phase difference and virtual value and power generating source circuit；Multiple hairs
Include the first power circuit and second source circuit in electric power circuit, in circuit regulating step, enable second source circuit into
The unloading of row separating brake or load of closing a floodgate.In practical application, power generating source circuit can be positioned in advance, such as the first power supply is electric
Road is positioned as main power circuit, and second source circuit is positioned as auxiliary power circuit.
3) compressor emergency shutdown rate-determining steps, compressor emergency shutdown rate-determining steps include any or all following step: hard stop
Step: enabling power generating source circuit directly unload separating brake, executes and shuts down delay, and throttle relay is enabled to stop output；It is cooling to shut down step
It is rapid: to enable power generating source circuit carry out unloading separating brake according to setting rule, after executing cooling delay, then execute shutdown delay, enable oil
Door relay stops output.
In addition, generator set control unit also includes engine operating parameter monitoring step: obtain it is following any one or appoint
Multiple signals: engine rotational speed signal, engine cylinder head temperature signal, engine oil pressure signal, coolant liquid detection signal, air inlet inspection
Survey signal.
Preferred embodiment:
Apply the present invention to single double-deck magnetic field orthogonal winding magneto alternator group, controller contains power end
Mouth, first via generating three-phase voltage detecting port, the second road generating three-phase voltage detecting port, the inspection of first via generating three-phase electric current
Survey port, the second road generating three-phase current detecting port, relay output end mouth, On-off signal port, analog input end
Mouth, speed probe port, RS485 communication port, CAN communication port and usb communication port.
Starting process:
(1) battery is connected to power switch, power switch is connected to the power supply of control, and controller obtains electric.
(2) throttle output is set by relay port K1 program, port connects the throttle solenoid valve and oil pump of engine
Equal peripheral equipments, relay port K2 program are set as starting output, and port connects the starter motor of engine, relay port
K8 is set as air preheat setting, and port connects engine fuel-firing preheating port, sets booting by controller internal processes
Delay, preheating delay start delay, start success conditions, starting failure interval time, number of starts and safe operation time etc.
Relevant parameter.
(3) when controller panel carries out start-up function, booting delay, preheating delay are sequentially entered, at this time to engine
Input air heated, throttle relay output, at this time throttle solenoid valve elder generation work once electrified, start delay, start at this time
Motor starts work once electrified.
(4) after starter motor work, start to start running, by the generator of bearing connection to start running, carry out
Cutting magnetic induction line, to externally generate electricity, there is power input in the voltage detecting port of controller at this time, so that controller obtains electricity
The voltage waveform in source, being analyzed curve to get virtual value is current voltage value, obtains the frequency of power supply according to the period
Value assert when frequency values, which reach, starts success conditions and starts successfully that starting success conditions can also be revolving speed, is passed by revolving speed
Sensor is connected to speed probe port, if failing starting, enters and starts interval time, risen again later
Dynamic, starting failure if no Successful startup that remains unchanged after the number of starts by setting carries out alarm shutdown status；Succeed
It is dynamic then enter safe operation state, delay after enter generating set operational monitoring state.
Unit running process:
It (1) can be company of the divide-shut brake output to control external loading by setting relay port under operating states of the units
It connects, due to being the unit of two-way independent current source output, so need to be set as first via power supply divide-shut brake to relay port K3,
Second road power supply divide-shut brake is set as to relay port K4, two-way is independently controlled, and after loading connection, passes through outside
The current transformer used is connected to the current detecting port of two-way power supply, the current waveform of the available two-way power supply of controller
Figure, in conjunction with voltage waveform, by calculating phase difference and virtual value, active power, reactive power and the view of available power supply
In power, thus be monitored to per voltage and current power-frequency all the way, it can be by the total of two-way power supply by program setting
Power is monitored, and to guarantee engine operation, while can be set in two-way power supply by software that power supply is main electricity all the way
Road, another way are auxiliary, and when general power is more than setting value, auxiliary circuit can be unloaded separating brake automatically by controller, work as total work
Auxiliary circuit can be carried out automatic closing load when being restored to engine limit of power by rate, and the power supply to guarantee main circuit is steady
It is qualitative.
(2) in generating set operation, it is also necessary to generator windings temperature, engine cylinder head temperature, unit inner loop
The machine oil of border temperature and engine, air inlet, the detection of coolant liquid, the parameters such as temperature can be used analog quantity, temperature value are converted to
Resistance value is detected, other can be detected by the way that switching value is arranged.
Stopping process:
(1) when unit prepares to shut down, load is unloaded first；It is generated largely because generating set is internal at runtime
Heat, can choose at this time it is cooling shut down or hard stop, then controller can directly carry out sub-switching operation to hard stop, into stopping
Machine delay, throttle relay stop output, final engine stop work, and generator stops output；Cooling shut down can need to set
Cooling delay is set, stop controller can also carry out automatic brake separating operation, be delayed into cooling, shutdown is entered back into after delay
Delay, throttle relay stop output, final engine stop work, and generator stops output.
(2) battery feed switch is closed, controller stops working.
One skilled in the art will appreciate that in addition to realizing system provided by the invention in a manner of pure computer readable program code
It, completely can be by the way that method and step be carried out programming in logic come so that provided by the invention other than system, device and its modules
System, device and its modules are declined with logic gate, switch, specific integrated circuit, programmable logic controller (PLC) and insertion
The form of controller etc. realizes identical program.So system provided by the invention, device and its modules may be considered that
It is a kind of hardware component, and the knot that the module for realizing various programs for including in it can also be considered as in hardware component
Structure；It can also will be considered as realizing the module of various functions either the software program of implementation method can be Hardware Subdivision again
Structure in part.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of generator set control unit, which is characterized in that it include generator operation control module, the generator operation control
Molding block includes with lower module:
Voltage signal obtains module: obtain the voltage monitoring signal of multiple power generating source circuits:
Current signal obtains module: obtaining the current monitor signal of multiple power generating source circuits；
Power supply signal processing module: handling voltage monitoring signal with current monitor signal, obtains power generating source power letter
Number；
Circuit adjustment module: power generating source power signal is compared with setting total power value, enables multiple power generating source circuits
In one or more power generating source circuits unloading separating brake or close a floodgate load.
2. generator set control unit according to claim 1, which is characterized in that in the power supply signal processing module,
According to the waveform of the waveform of the corresponding current monitor signal of multiple power generating source circuits and voltage monitoring signal, waveform phase is calculated
Active power, reactive power and the apparent energy of power generating source in difference and virtual value and power generating source circuit；
Include the first power circuit and second source circuit in multiple power generating source circuits, in circuit adjustment module, enables second
Power circuit carries out separating brake unloading or load of closing a floodgate.
3. generator set control unit according to claim 1, which is characterized in that it also include startup of unit control module,
Startup of unit control module includes with lower module:
Motor starting module: enabling starter motor work once electrified and successively drives engine and generator；
Generator starting judgment module: judge whether generator starts success；If so, executing generator operation control module；
If it is not, then executing number of starts judgment module；
Number of starts judgment module: it after undergoing the interval time of setting, returns and executes generator starting judgment module and returned
Round trip counting number, until generating alarm stopping signal after reaching setting recycle time.
4. generator set control unit according to claim 3, which is characterized in that in the motor starting module, successively
Execute booting delay, execute preheating delay so that the input air to engine heats, enable throttle relay export so that
Throttle solenoid valve work once electrified executes starting delay, enables starter motor work once electrified.
5. generator set control unit according to claim 3, which is characterized in that the generator starting judgment module packet
Containing any or all following module:
Frequency condition judgment module: the voltage waveform signal of power generating source in power generating source circuit is obtained, according to voltage wave
Shape curve signal obtains live electrical power frequency values, whether judges generator according to live electrical power frequency values and setting supply frequency value
It starts successfully；
Speed conditions judgment module: obtain the engine rotational speed signal from speed probe, according to engine rotational speed signal with
Setting speed value judges whether generator starts success.
6. generator set control unit according to claim 1, which is characterized in that it also include compressor emergency shutdown control module,
Compressor emergency shutdown control module includes any or all following module:
Hard stop module: enabling power generating source circuit directly unload separating brake, executes and shuts down delay, enables throttle relay stop defeated
Out；
It is cooling to shut down module: to enable power generating source circuit carry out unloading separating brake according to setting rule, after executing cooling delay, then execute
Delay is shut down, throttle relay is enabled to stop output.
7. generator set control unit according to claim 1, which is characterized in that also monitored comprising engine operating parameter
Module: obtain it is following any one or appoint multiple signals: engine rotational speed signal, engine cylinder head temperature signal, engine oil pressure letter
Number, coolant liquid detection signal, air inlet detect signal.
8. a kind of generating set, which is characterized in that include the first power circuit, second source circuit and controller, the control
Device processed includes generator set control unit described in any one of claims 1 to 3.
The first generator (1), Current Transmit 1 and A.C. contactor KM1 are provided on first power circuit；Second
The second generator (2), Current Transmit 2 and A.C. contactor KM2 are provided on power circuit；
Controller also includes the first generating voltage detection port, the detection of the first generation current port, the second generating voltage test side
Mouth, the second generation current detect port；
First generating voltage detection port is connected to the first power circuit, and the first generation current detection port is connected to Current Mutual Inductance
Device CT1, the second generating voltage detection port are connected to second source circuit, and it is mutual that the second generation current detection port is connected to electric current
Sensor CT2.
9. generating set according to claim 8, which is characterized in that also include engine, starter motor (3), charger
(4), sensor, relay (15), controller power source (5), air quality switch S1 and water level switch SB1；The engine
Include throttle solenoid valve (6) and fuel pump (7)；
The sensor includes speed probe (8), temperature sensor (9), pressure sensor (10)；
The controller includes relay output end mouth, On-off signal port, sensor port and communication port；
Relay output end mouth includes throttle relay port, Starter relay port, first via power supply divide-shut brake relay
Device port, the second road power supply divide-shut brake relay port；
Sensor port includes speed probe port, temperature sensor port, pressure sensor port；
Communication port includes following any or appoints various ports: RS485 communication port (11), the port RS232 (12), CAN are logical
Believe port (13), usb communication port (14).
10. a kind of generator set control method, which is characterized in that run rate-determining steps, the generator operation comprising generator
Rate-determining steps comprise the steps of:
Voltage signal obtaining step: the voltage monitoring signal of multiple power generating source circuits is obtained:
Current signal obtaining step: the current monitor signal of multiple power generating source circuits is obtained；
Power supply signal processing step: handling voltage monitoring signal with current monitor signal, obtains power generating source power letter
Number；
Circuit regulating step: power generating source power signal is compared with setting total power value, enables multiple power generating source circuits
In one or more power generating source circuits unloading separating brake or close a floodgate load.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111562432A (en) * | 2020-06-11 | 2020-08-21 | 哈尔滨理工大学 | Motor power measuring and calculating system based on motor refrigeration |
| CN114215651A (en) * | 2021-12-21 | 2022-03-22 | 福建亚南电机有限公司 | Control method and system for quick start and synchronous operation of generator set |
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