CN105322567B - A kind of light bavin complementary controller and its method of work based on parallel network reverse - Google Patents
A kind of light bavin complementary controller and its method of work based on parallel network reverse Download PDFInfo
- Publication number
- CN105322567B CN105322567B CN201510784262.6A CN201510784262A CN105322567B CN 105322567 B CN105322567 B CN 105322567B CN 201510784262 A CN201510784262 A CN 201510784262A CN 105322567 B CN105322567 B CN 105322567B
- Authority
- CN
- China
- Prior art keywords
- power
- photovoltaic
- diesel
- load
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to photovoltaic and diesel generation complementary controller field, and in particular to a kind of light bavin complementary controller based on parallel network reverse.The present invention includes CPU module, the signal input part of the CPU module connects the signal output part of electric power detection module, the power output end of power module is assisted a ruler in governing a country in the power input connection of CPU module, the signal input part of the CPU module signal output part connecting valve control module, CPU module two-way communication link also between communication module, two signal output parts of the switch control module are connected to the switch signal input end of the diesel-driven generator and power network powered to the load respectively, the communication module and the photovoltaic DC-to-AC converter two-way communication link for powering to the load, it ensure that grid-connected photovoltaic system can simultaneously work with diesel engine, complemental power-generation, and maximally used the photovoltaic electric power of environmental protection, save the use of diesel oil, reduce the discharge of carbon dioxide.
Description
Technical field
The invention belongs to photovoltaic and diesel generation complementary controller field, and in particular to a kind of light bavin based on parallel network reverse
Complementary controller and its method of work.
Background technology
As photovoltaic parallel in system technological progress and cost decline, under the wideling popularize of national policy, middle-size and small-size photovoltaic
Grid-connected system has begun to widely apply, and starts from city to rural area progressively popularization and application, and rural power grids are due to setting
The factors such as imperfection are applied, often the puzzlement such as power failure, due to some technical problems and national grid correlation standard, in grid power failure
Photovoltaic parallel in system must stop generating electricity immediately after electricity, but be relayed for some such as grain storage, communication base station, television radios
Important load, can only now be powered by standby diesel-driven generator, not only expensive but also pollution and its serious.
Under prior art conditions, grid-connected photovoltaic system has in the front end access of ATS switching switches and in ATS switchings
Switch rear end and access two kinds of access ways, it is same that two ways can not meet photovoltaic DC-to-AC converter and diesel engine under the conditions of grid power blackout
When the requirement that works, make a concrete analysis of as follows：
1st, photovoltaic DC-to-AC converter is in ATS switching switch front end access power networks
As shown in figure 1, after grid cut-off, ATS switching switches K2 disconnects, K1 closures, and diesel-driven generator, which starts, to generate electricity, and passes through
Switch K1 powers to the load, now, the generating due to the fact that photovoltaic DC-to-AC converter can not work：
1) K2 disconnects, without composition current supply circuit between photovoltaic DC-to-AC converter and load, it is impossible to be load supplying；
2) in order to prevent unplanned island effect from producing, combining inverter will be stopped.
2nd, photovoltaic DC-to-AC converter is in ATS switching switch rear end access power networks
As shown in Fig. 2 photovoltaic DC-to-AC converter each device action after ATS switching switch rear end access power networks, grid power blackout is suitable
Sequence is as shown in Figure 3：
1) switch K2 disconnects, K1 closures, photovoltaic DC-to-AC converter triggering isolated island protection, stops power generation operation；
2) diesel-driven generator, which starts, generates electricity, and is powered to the load by switching K1；
3) photovoltaic DC-to-AC converter is detected to start after diesel-driven generator institute electricity and generated electricity.
From grid power blackout moment t0Start t to photovoltaic DC-to-AC converter4Moment, photovoltaic DC-to-AC converter is sent with the same phase of diesel-electric power, together
Frequently be jointly load supplying, with the alternating electromotive force of width, due to photovoltaic DC-to-AC converter take be maximal power tracing (MPPT) strategy
So that system lacks power balance equipment and played pendulum, reduce when there is photovoltaic generation power increase, bearing power
When, photovoltaic DC-to-AC converter is sent out excrescent electric power and nowhere consumed, and triggers diesel-driven generator hypervelocity, voltage rise, power frequency
A series of problems, such as quickening, it could even be possible to damaging load and diesel-driven generator.
After power system restoration is powered, each device action order is as shown in Figure 4：
1) switch K1 disconnects, and K2 closures, switching time is very short, it is impossible to trigger the protection of photovoltaic DC-to-AC converter isolated island, photovoltaic
Inverter holding work；
2) diesel-driven generator stops generating electricity.
After power system restoration is powered, before K2 closures, photovoltaic electric power is kept with the same phase of diesel-electric power, with frequency, with width and power network
Electric power is different, and after K2 closures, two kinds of phases, frequency, the discrepant alternating electromotive forces of amplitude are forced to link together, and certainly will cause
Very big dash current, damage and burn the equipment such as photovoltaic DC-to-AC converter.
The content of the invention
There is provided a kind of light bavin complementation control based on parallel network reverse in order to overcome the above-mentioned deficiencies of the prior art by the present invention
Device, this controller architecture is simple, and not only grid-connected photovoltaic system can simultaneously work with diesel engine, complemental power-generation, and most
The earth has used the photovoltaic electric power of environmental protection, saves the use of diesel oil, reduces the discharge of carbon dioxide.
To achieve the above object, present invention employs following technical measures：
A kind of light bavin complementary controller based on parallel network reverse, including CPU module, the central processing unit mould
The signal input part of block connects the signal output part of electric power detection module, the power input connection of the CPU module
Assist a ruler in governing a country the power output end of power module, the signal input of CPU module signal output part connecting valve control module
End, CPU module two-way communication link also between communication module, two signal outputs of the switch control module
End is connected to the switch signal input end of the diesel-driven generator and power network powered to the load respectively, and the communication module is with being used for
The photovoltaic DC-to-AC converter two-way communication link powered to the load.
It is preferred that, the electric power detection module includes following part：
Oil machine detection unit：For detect the diesel-driven generator output magnitude of voltage of electricity, current value, frequency values, phase angle,
Power factor, power flow direction, the signal output part of the oil machine detection unit connect the signal input part of CPU module；
Power network detection unit：For detect the power network output magnitude of voltage of electricity, current value, frequency values, phase angle, power because
Number, power flow direction, the signal output part of the power network detection unit connect the signal input part of CPU module；
Photovoltaic detection unit：For detect the photovoltaic DC-to-AC converter output magnitude of voltage of electricity, current value, frequency values, phase angle,
Power factor, power flow direction, the signal output part of the photovoltaic detection unit connect the signal input part of CPU module；
Load detecting unit：For detect the magnitude of voltage of load-receipt electricity, current value, frequency values, phase angle, power because
Number, power flow direction, the signal output part of the load detecting unit connect the signal input part of CPU module.
It is preferred that, the switch control module includes the first relay, the second relay, diesel-driven generator switch and electricity
Net switch, the signal input part of the signal output part connection diesel-driven generator switch of first relay, second relay
The signal output part of device connects the signal input part of power network switch, the signal input part of first relay and the second relay
Signal output part with the CPU module is connected, and the main contacts of the diesel-driven generator switch is connected to diesel oil hair
Between the power output end and load line of motor, the main contacts of the power network switch is connected between power network and load line.
Further, the CPU module chip model is what TIX produced
TMS320X2812。
The method of work of the present invention also simultaneously there is provided the above-mentioned light bavin complementary controller based on parallel network reverse, i.e.,：
1) after grid cut-off, power network switch is disconnected, and diesel-driven generator switch closure, the photovoltaic DC-to-AC converter triggering isolated island is protected
Shield, stops providing electric power to load；The diesel-driven generator starts, and is powered to the load by diesel-driven generator switch, the light
Volt inverter is detected after diesel-driven generator generates electricity and started working, photovoltaic DC-to-AC converter output and the same amplitude of diesel-driven generator,
The alternating electromotive force of same-phase, same frequency, it is common to provide supply of electric power for load；The oil machine detection unit, power network detection unit,
Photovoltaic detection unit, load detecting unit detect diesel-driven generator, power network, photovoltaic DC-to-AC converter, the magnitude of voltage of load, electric current respectively
Value, frequency values, phase angle, power factor, power flow direction parameter, and parameter information is sent to CPU module, parameter
Information is sent to photovoltaic inversion by the CPU module after CPU module is handled by communication module
The electric power output of device, in real time adjustment photovoltaic DC-to-AC converter, on the premise of ensureing that supply of electric power is reliable and stable, makes light to greatest extent
Inverter is lied prostrate to generate electricity；
2) t after power system restoration is powered0~t1In time, the power network first restores electricity, at diesel-driven generator switch
In closure state, power network switch is off, and diesel-driven generator continues to provide electric power, the power network detection unit to load
The parameters of electric power information for detecting power network is changed, and parameter information is sent to CPU module by power network detection unit,
It is inverse that parameter information by communication module is sent to photovoltaic after CPU module is handled, by the CPU module
Become device, the photovoltaic DC-to-AC converter is stopped；
Power system restoration power after t1~t2In time, the photovoltaic DC-to-AC converter has been stopped, first diesel-driven generator
Switch off, then power network switch is closed, diesel-driven generator stops providing electric power to load, and the power network continues to supply to load
Electricity, the CPU module shortens diesel-driven generator switch, the switching interval time of power network switch, makes switch switching interval
Time is less than 20ms；
Power system restoration power after t2~t3In time, the diesel-driven generator switch is off, at power network switch
In closure state, the diesel-driven generator stops providing electric power to load, and the photovoltaic DC-to-AC converter continues to be stopped, the electricity
Net continues to power to the load, and the diesel-driven generator is stopped operation, no longer consumes fuel supply；
Power system restoration power after t3~t4In time, the diesel-driven generator switch is off, at power network switch
In closure state, the diesel-driven generator continues to be stopped, and the power network continues to power to the load, now, the power network inspection
Survey unit and load detecting unit detect respectively power network, the magnitude of voltage of load, current value, frequency values, phase angle, power factor,
Parameter information is sent to CPU module, parameter information by power flow direction parameter, power network detection unit, load detecting unit
After CPU module is handled, photovoltaic DC-to-AC converter is sent to by communication module by the CPU module, institute
Photovoltaic DC-to-AC converter total power startup work is stated, output and the alternating electromotive force of the same amplitude of power network, same-phase, same frequency supply for load
Electricity, the photovoltaic DC-to-AC converter starts maximal power tracing function, and load dump power is reversely delivered into power network, played to greatest extent
Photovoltaic is exerted oneself.
The beneficial effects of the present invention are：
1), the present invention includes CPU module, the signal input part connection electricity inspection of the CPU module
The signal output part of module is surveyed, the power supply output of power module is assisted a ruler in governing a country in the power input connection of the CPU module
End, CPU module two-way communication link also between communication module, two signal outputs of the switch control module
End is connected to the switch signal input end of the diesel-driven generator and power network powered to the load respectively, and the communication module is with being used for
The photovoltaic DC-to-AC converter two-way communication link powered to the load, it is ensured that grid-connected photovoltaic system can simultaneously work with diesel engine,
Complemental power-generation, and the photovoltaic electric power of environmental protection has maximally been used, the use of diesel oil is saved, the row of carbon dioxide is reduced
Put.
2), the TMS320X2812 of the CPU module model TIX production, can pass through
Software algorithm calculates the fluctuation tendency and stability of electric power system, and sending corresponding electric power to photovoltaic volt inverter in time adjusts
Whole order, on the premise of ensureing that electric power system is reliable and stable, improves photovoltaic DC-to-AC converter output power, solves photovoltaic to greatest extent
Grid-connected system and diesel engine work simultaneously power supply instability the problem of.
3), because oil machine detection unit, power network detection unit, photovoltaic detection unit, load detecting unit can be examined respectively
Survey diesel-driven generator, power network, photovoltaic DC-to-AC converter, the output of load or receive information about power, and information about power is transferred to center
Processor module is handled, and the CPU module sends the information about power after processing to corresponding power supply unit,
After ensure that power system restoration is powered, photovoltaic DC-to-AC converter keeps same-phase, same frequency, same amplitude with power network, is effectively guaranteed and cuts
Change steady smooth, it is to avoid the damage of power supply unit and load.
Brief description of the drawings
Fig. 1 is photovoltaic DC-to-AC converter under prior art in ATS switching switch front end access power network schematic diagrames；
Fig. 2 is photovoltaic DC-to-AC converter under prior art in ATS switching switch rear end access power network schematic diagrames；
Fig. 3 be prior art under the conditions of, grid power blackout device action timing diagram；
Fig. 4 be prior art under the conditions of, power system restoration device action timing diagram；
Fig. 5 is light bavin complementary controller each several part equipment connection diagram of the invention；
Fig. 6 is the schematic diagram of the light bavin complementary controller of the present invention；
Fig. 7 is light bavin complementary controller control logic flow chart of the invention；
Device action timing diagram after Fig. 8 powers for the power system restoration in the light bavin complementary controller of the present invention.
The implication of label symbol is as follows in figure：
10-CPU module, 20-electric power detection module, 21-oil machine detection unit
22-power network detection unit 23-photovoltaic, 24-load detecting unit of detection unit
The relay of the relay of 30-switch control module 31-the first 32-the second
35-diesel-driven generator, 36-power network 40-assist a ruler in governing a country power module
50-communication module, 51-photovoltaic DC-to-AC converter
K1-diesel-driven generator switch K2-power network switch
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in Figure 5,6, a kind of light bavin complementary controller based on parallel network reverse includes CPU module 10, described
The signal input part of CPU module 10 connects the signal output part of electric power detection module 20, the CPU module
The power output end of power module 40 is assisted a ruler in governing a country in 10 power input connection, and the connection of the signal output part of CPU module 10 is opened
The signal input part of control module 30 is closed, the two-way communication link also between communication module 50 of CPU module 10 is described
Two signal output parts of switch control module 30 are connected to the diesel-driven generator 35 powered to the load and power network 36 respectively
Switch signal input end, the communication module 50 and the two-way communication link of photovoltaic DC-to-AC converter 51 for powering to the load, it is ensured that
Grid-connected photovoltaic system can simultaneously work with diesel engine, complemental power-generation, and maximally use the light of environmental protection
Electric power is lied prostrate, the use of diesel oil is saved, reduces the discharge of carbon dioxide.
As shown in fig. 6, the electric power detection module 20 includes oil machine detection unit 21, power network detection unit 22, photovoltaic inspection
Unit 23, load detecting unit 24 are surveyed, the oil machine detection unit 21, power network detection unit 22, photovoltaic detection unit 23 are distinguished
Magnitude of voltage, current value, frequency values, phase angle, power factor, power flow direction for detecting each output electricity, and signal
Output end connects the signal input part of CPU module 10, and the load detecting unit 24 is used to detect load-receipt electricity
Magnitude of voltage, current value, frequency values, phase angle, power factor, power flow direction, signal output part connection CPU module
10 signal input part.
As shown in fig. 6, the switch control module 30 includes the first relay 31, the second relay 32, diesel-driven generator
Switch K1, power network switch K2；The signal output part connection diesel-driven generator switch K1 of first relay 31 signal input
End, the signal output part connection power network switch K2 of second relay 32 signal input part, the He of the first relay 31
Signal output part of the signal input part of second relay 32 with the CPU module 10 is connected, the diesel generation
Machine switch K1 main contacts is connected between the power output end of diesel-driven generator 35 and load line, the power network switch K2's
Main contacts is connected between the line of power network 36 and load.
The chip model of CPU module 10 is the TMS320X2812 that TIX produces, can be with
The fluctuation tendency and stability of electric power system are calculated by software algorithm, corresponding electric power is sent to photovoltaic DC-to-AC converter in time
Adjustment order, on the premise of ensureing that electric power system is reliable and stable, improves photovoltaic DC-to-AC converter output power, solves light to greatest extent
Photovoltaic grid-connected system and diesel engine work simultaneously power supply instability the problem of.
After power network 36 is powered off, power network switch K2 is disconnected, and diesel-driven generator switch K1 closures, the photovoltaic DC-to-AC converter 51 is triggered
Isolated island is protected, and stops providing electric power to load；The diesel-driven generator 35 starts, and switch K1 by diesel-driven generator supplies to load
Electricity, the photovoltaic DC-to-AC converter 51 is detected after diesel-driven generator 35 generates electricity and started working；The photovoltaic DC-to-AC converter 51 is exported and bavin
The same amplitude of fry dried food ingredients motor 35, same-phase, the alternating electromotive force of same frequency, it is common to provide supply of electric power, the oil machine detection for load
Unit 21, power network detection unit 22, photovoltaic detection unit 23, load detecting unit 24 detect diesel-driven generator 35, power network respectively
36th, photovoltaic DC-to-AC converter 51, the magnitude of voltage of load, current value, frequency values, phase angle, power factor, power flow direction parameter, and will
Parameter information is sent to CPU module 10, and parameter information is after the processing of CPU module 10, by the center
Processor module 10 is sent to photovoltaic DC-to-AC converter 51 by communication module 50, in real time the electric power output of adjustment photovoltaic DC-to-AC converter 51,
On the premise of ensureing that supply of electric power is reliable and stable, photovoltaic DC-to-AC converter 51 is generated electricity to greatest extent, save the use of diesel oil, subtract
The discharge of carbon dioxide is lacked.
As shown in figure 8, power network 36 restore electricity after 0s~2s times in, the power network 36 first restores electricity, due to bavin
Fry dried food ingredients motor switch K1 is in closure state, and power network switch K2 is off, and diesel-driven generator 35 continues to provide to load
Electric power, the parameters of electric power information that the power network detection unit 22 detects power network 36 changes, and power network detection unit 22 will join
Number information transmission is to CPU module 10, and parameter information is after the processing of CPU module 10, by the centre
Reason device module 10 is sent to photovoltaic DC-to-AC converter 51 by communication module 50, and the photovoltaic DC-to-AC converter 51 is stopped.
As shown in figure 8, power network 36 restore electricity after 2s~2.15s times in, the photovoltaic DC-to-AC converter 51 has stopped
Work, first diesel-driven generator switch K1 are disconnected, and then power network switch K2 is closed, and diesel-driven generator 35 stops providing electricity to load
Power, the power network 36 continues to power to the load, and the CPU module 10 shortens diesel-driven generator switch K1, power network switch
The K2 switching interval time, the switch switching interval time is less than 20ms, reduce load supplying switching shock.
As shown in figure 8, power network 36 restore electricity after 2.15s~3s times in, diesel-driven generator switch K1 is in
Off-state, power network switch K2 is in closure state, and the diesel-driven generator 35 stops providing electric power to load, and the photovoltaic is inverse
Become device 51 to continue to be stopped, the power network 36 continues to power to the load, the diesel-driven generator 35 is stopped operation, no longer
Consume fuel supply.
As shown in figures 5-8, in 3s~12s times after power network 36 restores electricity, the diesel-driven generator switch K1 is in
Off-state, power network switch K2 is in closure state, and the diesel-driven generator 35 continues to be stopped, the power network 36 continue to
Load supplying, now, the power network detection unit 22 and load detecting unit 24 detect respectively power network 36, the magnitude of voltage of load,
Current value, frequency values, phase angle, power factor, power flow direction parameter, power network detection unit 22, load detecting unit 24 will join
Number information transmission is to CPU module 10, and parameter information is after the processing of CPU module 10, by the centre
Reason device module 10 is sent to photovoltaic DC-to-AC converter 51 by communication module 50, and the total power startup work of photovoltaic DC-to-AC converter 51 is defeated
Go out with the same amplitude of power network 36, same-phase, same frequency alternating electromotive force, be load supplying, the photovoltaic DC-to-AC converter 51 starts maximum
Power tracking MPPT functions, power network is reversely delivered to by load dump power, and photovoltaic is played to greatest extent and is exerted oneself.
Claims (2)
1. a kind of method of work of the light bavin complementary controller based on parallel network reverse, the smooth bavin complementary controller includes centre
Manage device module (10), the signal output of the signal input part connection electric power detection module (20) of the CPU module (10)
The power output end of power module (40), centre are assisted a ruler in governing a country in end, the power input connection of the CPU module (10)
Manage device module (10) signal output part connecting valve control module (30) signal input part, CPU module (10) also with
Two-way communication link between communication module (50), two signal output parts of the switch control module (30) are connected to respectively
The diesel-driven generator (35) and the switch signal input end of power network (36) powered to the load, the communication module (50) with for
Photovoltaic DC-to-AC converter (51) two-way communication link of load supplying；The electric power detection module (20) includes following part：Oil
Machine testing unit (21)：For detecting that diesel-driven generator (35) exports magnitude of voltage, current value, frequency values, phase angle, the work(of electricity
Rate factor, power flow direction, the signal of the signal output part connection CPU module (10) of the oil machine detection unit (21)
Input；Power network detection unit (22)：For detecting power network (36) the output magnitude of voltage of electricity, current value, frequency values, phase
Angle, power factor, power flow direction, the signal output part connection CPU module (10) of the power network detection unit (22)
Signal input part；Photovoltaic detection unit (23)：For detecting that photovoltaic DC-to-AC converter (51) exports magnitude of voltage, current value, the frequency of electricity
Rate value, phase angle, power factor, power flow direction, the signal output part connection central processing unit of the photovoltaic detection unit (23)
The signal input part of module (10)；Load detecting unit (24)：Magnitude of voltage, current value, frequency for detecting load-receipt electricity
Rate value, phase angle, power factor, power flow direction, the signal output part connection central processing unit of the load detecting unit (24)
The signal input part of module (10)；The switch control module (30) includes the first relay (31), the second relay (32), bavin
Fry dried food ingredients motor switch (K1) and power network switch (K2), the signal output part connection diesel-driven generator of first relay (31)
Switch the signal input part of (K1), the signal input of the signal output part connection power network switch (K2) of second relay (32)
End, the signal input part of first relay (31) and the second relay (32) with the CPU module (10)
Signal output part is connected, and the main contacts of the diesel-driven generator switch (K1) is connected to the power output end of diesel-driven generator (35)
Between load line, the main contacts of the power network switch (K2) is connected between power network (36) and load line；Its feature exists
In：
1) after power network (36) power-off, power network switch (K2) disconnects, diesel-driven generator switch (K1) closure, the photovoltaic DC-to-AC converter
(51) triggering isolated island protection, stops providing electric power to load；The diesel-driven generator (35) starts, and is switched by diesel-driven generator
(K1) power to the load, the photovoltaic DC-to-AC converter (51) detects after diesel-driven generator (35) generates electricity and started working, the photovoltaic
Inverter (51) is exported and diesel-driven generator (35) same to amplitude, same-phase, the alternating electromotive force of same frequency, common to provide electricity for load
Power is supplied；The oil machine detection unit (21), power network detection unit (22), photovoltaic detection unit (23), load detecting unit
(24) diesel-driven generator (35), power network (36), photovoltaic DC-to-AC converter (51), the magnitude of voltage of load, current value, frequency are detected respectively
Value, phase angle, power factor, power flow direction parameter, and parameter information is sent to CPU module (10), parameter information
After CPU module (10) processing, light is sent to by communication module (50) by the CPU module (10)
Inverter (51) is lied prostrate, the electric power output of photovoltaic DC-to-AC converter (51) is adjusted in real time, on the premise of ensureing that supply of electric power is reliable and stable,
Photovoltaic DC-to-AC converter (51) is set to generate electricity to greatest extent；
2) t after power network (36) restores electricity0~t1In time, the power network (36) first restores electricity, because diesel-driven generator is opened
Close (K1) and be in closure state, power network switch (K2) is off, diesel-driven generator (35) continues to provide electric power to load,
The parameters of electric power information that the power network detection unit (22) detects power network (36) changes, and power network detection unit (22) will join
Number information transmission is to CPU module (10), and parameter information is after CPU module (10) processing, in described
Central processor module (10) is sent to photovoltaic DC-to-AC converter (51) by communication module (50), and the photovoltaic DC-to-AC converter (51) stops work
Make；
Power network (36) restore electricity after t1~t2In time, the photovoltaic DC-to-AC converter (51) has been stopped, and diesel oil is sent out first
Motor switch (K1) is disconnected, and then power network switch (K2) is closed, and diesel-driven generator (35) stops providing electric power, the electricity to load
Net (36) continues to power to the load, and the CPU module (10) shortens diesel-driven generator switch (K1), power network switch
(K2) the switching interval time, the switch switching interval time is made to be less than 20ms；
Power network (36) restore electricity after t2~t3In time, the diesel-driven generator switch (K1) is off, and power network is opened
Close (K2) be in closure state, the diesel-driven generator (35) stop to load provide electric power, the photovoltaic DC-to-AC converter (51) after
Continuous to be stopped, the power network (36) continues to power to the load, and the diesel-driven generator (35) is stopped operation, no longer consumes
Fuel is supplied；
Power network (36) restore electricity after t3~t4In time, the diesel-driven generator switch (K1) is off, and power network is opened
Close (K2) and be in closure state, the diesel-driven generator (35) continues to be stopped, and the power network (36) continues to power to the load,
Now, the power network detection unit (22) and load detecting unit (24) detect power network (36), the magnitude of voltage of load, electric current respectively
Value, frequency values, phase angle, power factor, power flow direction parameter, power network detection unit (22), load detecting unit (24) will join
Number information transmission is to CPU module (10), and parameter information is after CPU module (10) processing, in described
Central processor module (10) is sent to photovoltaic DC-to-AC converter (51), photovoltaic DC-to-AC converter (51) total power by communication module (50)
Start work, output and the alternating electromotive force of power network (36) same to amplitude, same-phase, same frequency are load supplying, the photovoltaic inversion
Device (51) starts maximal power tracing function, and load dump power is reversely delivered into power network, and photovoltaic is played to greatest extent and is exerted oneself.
2. a kind of method of work of the light bavin complementary controller based on parallel network reverse as claimed in claim 1, it is characterised in that：
CPU module (10) chip model is the TMS320X2812 that TIX produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510784262.6A CN105322567B (en) | 2015-11-13 | 2015-11-13 | A kind of light bavin complementary controller and its method of work based on parallel network reverse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510784262.6A CN105322567B (en) | 2015-11-13 | 2015-11-13 | A kind of light bavin complementary controller and its method of work based on parallel network reverse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105322567A CN105322567A (en) | 2016-02-10 |
| CN105322567B true CN105322567B (en) | 2017-08-01 |
Family
ID=55249424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510784262.6A Active CN105322567B (en) | 2015-11-13 | 2015-11-13 | A kind of light bavin complementary controller and its method of work based on parallel network reverse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105322567B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11114855B2 (en) * | 2016-05-24 | 2021-09-07 | Solaredge Technologies Ltd. | Load management in hybrid electrical systems |
| CN105871301B (en) * | 2016-05-26 | 2018-08-17 | 江苏苏美达机电科技有限公司 | A kind of power supply system and method |
| CN107707019A (en) * | 2017-09-27 | 2018-02-16 | 南昌航空大学 | A kind of method that inverter automatic detection switching civil power, the diesel engine band of no means of communication carry |
| CN113328426B (en) * | 2021-06-30 | 2023-06-02 | 江西洪都航空工业集团有限责任公司 | Nacelle, radar power supply control circuit of coach machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201556969U (en) * | 2009-07-17 | 2010-08-18 | 深圳市沃尔奔达新能源股份有限公司 | Power supply system |
| CN101951014A (en) * | 2010-10-29 | 2011-01-19 | 上海致远绿色能源有限公司 | Wind-light-diesel commercial power integral power supply system |
| CN102170168A (en) * | 2011-03-22 | 2011-08-31 | 苏州市思玛特电力科技有限公司 | Control method for wind-photovoltage-diesel power generation system |
| CN202353253U (en) * | 2011-11-24 | 2012-07-25 | 天津水利电力机电研究所 | Multi-power intelligent conversion charging device |
| CN104538985A (en) * | 2014-11-27 | 2015-04-22 | 晶澳(扬州)太阳能光伏工程有限公司 | Solar off-grid and grid-connected control method for hybrid solar and commercial power supply |
| CN205178527U (en) * | 2015-11-13 | 2016-04-20 | 安徽四创电子股份有限公司 | Complementary controller of light firewood based on contravariant of being incorporated into power networks |
-
2015
- 2015-11-13 CN CN201510784262.6A patent/CN105322567B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201556969U (en) * | 2009-07-17 | 2010-08-18 | 深圳市沃尔奔达新能源股份有限公司 | Power supply system |
| CN101951014A (en) * | 2010-10-29 | 2011-01-19 | 上海致远绿色能源有限公司 | Wind-light-diesel commercial power integral power supply system |
| CN102170168A (en) * | 2011-03-22 | 2011-08-31 | 苏州市思玛特电力科技有限公司 | Control method for wind-photovoltage-diesel power generation system |
| CN202353253U (en) * | 2011-11-24 | 2012-07-25 | 天津水利电力机电研究所 | Multi-power intelligent conversion charging device |
| CN104538985A (en) * | 2014-11-27 | 2015-04-22 | 晶澳(扬州)太阳能光伏工程有限公司 | Solar off-grid and grid-connected control method for hybrid solar and commercial power supply |
| CN205178527U (en) * | 2015-11-13 | 2016-04-20 | 安徽四创电子股份有限公司 | Complementary controller of light firewood based on contravariant of being incorporated into power networks |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105322567A (en) | 2016-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103645404B (en) | A kind of micro-grid island detection method and detection system | |
| CN103840486B (en) | A kind of control method of photovoltaic power supply system grid connection of accumulation energy type | |
| CN105322567B (en) | A kind of light bavin complementary controller and its method of work based on parallel network reverse | |
| CN103904677B (en) | The method for handover control of a kind of VSC-HVDC between networking and decoupled mode | |
| CN103560538B (en) | Micro-capacitance sensor protection and the switching integrated control method of Based PC C place's energy storage | |
| CN102593832B (en) | Three-wire DC microgrid system suitable for modern buildings and control method thereof. | |
| CN101950976B (en) | Grid-connected operation method of grid-connected type photovoltaic inverter | |
| CN103217595B (en) | A kind of detection method of one-phase island of three-phase grid-connected inverter, equipment and system | |
| CN103412207A (en) | Photovoltaic grid connected inverter island detection method based on negative sequence current injection | |
| CN104935002B (en) | A kind of distributed photovoltaic power grid generating overvoltage adjusting method | |
| CN102324753B (en) | Energy storage control method of battery energy storage system | |
| CN103151799B (en) | A kind of micro-capacitance sensor electric power system and control method | |
| CN103296696B (en) | Inverter and control method thereof | |
| CN103414204B (en) | Adopt the control method of dynamic voltage compensation wind generator system output reactive power | |
| CN104578128A (en) | Islanding-to-networking switching method for flexible direct current power transmission system | |
| CN107276119A (en) | A kind of energy accumulation current converter black-start method | |
| CN109546686A (en) | The voltage compensation and uninterrupted power supply method of dynamic electric voltage recovery device based on light hair long electric unit | |
| CN104967146A (en) | Micro-grid grid-connected and off-grid control system | |
| CN104319815A (en) | Grid connection/disconnection seamless switching method for micro-grid converter | |
| CN104539023B (en) | Wind power generation and power supply system based on grid power complementation | |
| CN207320847U (en) | A kind of black starting-up device of scene power supply micro-capacitance sensor | |
| CN203312829U (en) | Inverter capable of smoothly switching between grid-off mode and grid-connected mode | |
| CN104600751A (en) | New-energy power generator grid-connection system | |
| CN202495788U (en) | Solar energy and commercial power seamless switching hybrid power supply apparatus | |
| CN208835765U (en) | A kind of device inhibiting shipping shore power system inverse probability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |