CN109888832A - Water-wind-light complementary power generation and grid-connected control simulation experiment system - Google Patents
Water-wind-light complementary power generation and grid-connected control simulation experiment system Download PDFInfo
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- 238000010248 power generation Methods 0.000 title claims abstract description 60
- 238000004088 simulation Methods 0.000 title claims abstract description 12
- 230000000295 complement effect Effects 0.000 title abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
- 238000007600 charging Methods 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 18
- 238000011217 control strategy Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005622 photoelectricity Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention discloses a water-wind-light complementary power generation and grid-connected control simulation experiment system, which belongs to the field of electrical engineering and comprises a power supply simulation power generation module, a power supply grid-connected control module, a direct current inversion module, an alternating current distribution module and an alternating current and direct current electrical parameter monitoring module. The system can realize the operation of hydraulic simulation power generation, wind simulation power generation and photovoltaic simulation power generation, and the operation is safe, simple and convenient; the system can flexibly realize water-wind complementary power generation and grid connection, wind-solar complementary power generation and grid connection, water-light complementary power generation and grid connection, and water-wind-light complementary power generation and grid connection, and overcomes the defects of randomness, fluctuation, intermittence and the like of the output characteristic of the distributed power supply to a certain extent; the system load is expandable; the system has simple structure, low cost and good control effect.
Description
Technical field
The present invention relates to electrical engineering field, specifically a kind of water wind light mutual complementing power generation and cutting-in control simulated experiment system
System.
Background technique
With the exhaustion of traditional fossil energy and the high speed development of national economy, for China, how the energy is improved
Utilization rate, restructuring the use of energy becomes to be increasingly urgent to.In this context, distributed power generation and its relevant technologies cause common people and get over
Carry out more concerns.Wherein, wind, light, reserves possessed by the water distributed energy are huge, widely distributed, clean and safe, at me
State is using more.
But it is limited by the disadvantages of randomness, fluctuation, intermittence of distributed generation resource power producing characteristics, cutting-in control is still located
In the exploratory stage.Based on water, wind, light distribution formula power supply complementary type micro-grid technology and operation control strategy, waterpower is realized
Electricity generation grid-connecting operation, photovoltaic power generation grid-connecting operation, wind power-generating grid-connected operation, energy-storage system of accumulator and net operation and water scene
The power generation of the multi-sources such as complementary and net operation and grid-connecting apparatus are urgently developed.
Summary of the invention
The purpose of the present invention is to provide a kind of water wind light mutual complementing power generation and cutting-in control experimental system for simulating, overcome distribution
The disadvantages of randomness of formula power supply power producing characteristics, fluctuation, intermittence, limits, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme:
A kind of water wind light mutual complementing power generation and cutting-in control experimental system for simulating, including power supply simulate electricity generation module, power grid control
Molding block, DC inversion module, AC distribution module and the electrical parameter monitoring module of alternating current-direct current,
The power supply simulation electricity generation module includes hydroelectric generation simulator, Wind Generation Simulator and photovoltaic power generation simulator, institute
It states hydroelectric generation simulator, Wind Generation Simulator and photovoltaic power generation simulator and passes through single-phase air switch respectively and be connected with direct current
Contactor, power governor, and then connection ± 48V DC bus；
The power grid control module includes battery group, and the battery group connects direct current contact by single-phase air switch
Device, management of charging and discharging device, and then connection ± 48V DC bus；
The DC inversion module includes three-phase inverter, and three-phase inverter upstream connection ± 48V DC bus, downstream passes through three
Phase air switch connects 220V with the water power A.C. contactor being connected in parallel with wind power AC contactor, photovoltaic A.C. contactor
Ac bus, by single-phase air switch and respectively to the first load, the second load and third load supplying；
The AC distribution module includes electric control system, and electric control system is connected with touch screen, electric control system control
DC relay, D.C. contactor, AC relay and water power A.C. contactor and the wind power AC contact being connected in parallel processed
Device, photovoltaic A.C. contactor determine whether water power, wind-powered electricity generation and photoelectricity are grid-connected；The electric control system controls the straight of battery group
Current relay, D.C. contactor and management of charging and discharging device determine whether battery group is DC bus powered to ± 48V；
The electric parameter detection module includes monitoring system, and monitoring system is connected with display, and the monitoring system is supervised respectively
Depending on voltage, the voltage of electric current and ac bus, frequency of D.C. contactor, the first load, the second load and third load.
As a further solution of the present invention: the water wind mutual added time is used, based on water power, when microgrid power is inadequate,
When ac bus voltage drops to the 95% of voltage rating, the DC relay of wind-powered electricity generation, wind-powered electricity generation are controlled by electric control system
D.C. contactor closure supplies wind-power electricity generation to ± 48V DC bus side, and is converted to 380/220V by three-phase inverter and hands over
Galvanic electricity, while the AC relay of wind-powered electricity generation and wind power AC contactor closure, power to ac bus；When microgrid power still not
It is enough, when ac bus voltage drops to the 95% of voltage rating, the direct current relay of battery group is controlled by electric control system
Device, D.C. contactor closure, control management of charging and discharging device state is discharge condition, and battery group is DC bus powered to ± 48V；
When microgrid power has redundancy, and ac bus voltage rises above the 105% of voltage rating, electric control system control can be passed through
The power of power governor output processed makes ac bus voltage be reduced to voltage rating, and control strategy uses master & slave control, and control is calculated
Method uses SVPWM algorithm.
As a further solution of the present invention: when using wind light mutual complementing, based on wind-powered electricity generation, when microgrid power is inadequate,
When ac bus voltage drops to the 95% of voltage rating, DC relay, the wind of wind-power electricity generation are controlled by electric control system
The D.C. contactor closure of power power generation, supplies wind-power electricity generation to ± 48V DC bus side, and be converted to by three-phase inverter
380/220V alternating current, while the AC relay of photovoltaic electric and photovoltaic A.C. contactor closure, power to ac bus；When micro-
Grid power is still inadequate, when ac bus voltage drops to the 95% of voltage rating, controls battery group by electric control system
DC relay, D.C. contactor closure, the management of charging and discharging device state of battery group is discharge condition, battery group to ±
48V is DC bus powered；When microgrid power has redundancy, and ac bus voltage rises above the 105% of voltage rating, can lead to
The power for crossing electric control system control power governor output, makes ac bus voltage be reduced to voltage rating, control strategy is adopted
With master & slave control, control algolithm uses SVPWM algorithm.
As a further solution of the present invention: the water light mutual added time is used, based on water power, when microgrid power is inadequate,
When ac bus voltage drops to the 95% of voltage rating, DC relay, the light of photovoltaic power generation are controlled by electric control system
The D.C. contactor closure of volt power generation, supplies photovoltaic power generation to ± 48V DC bus side, and be converted to by three-phase inverter
220V direct current, while the AC relay of photovoltaic electric and photovoltaic A.C. contactor closure, power to ac bus；Work as micro-capacitance sensor
Power is still inadequate, when ac bus voltage drops to the 95% of voltage rating, controls the straight of battery group by electric control system
Current relay, D.C. contactor closure, the management of charging and discharging device state of battery group are discharge condition, and battery group is to ± 48V
DC bus powered, control strategy uses master & slave control, and control algolithm uses SVPWM algorithm.
As a further solution of the present invention: use water wind light mutual complementing when, based on water power, when microgrid power not
It is enough, when ac bus voltage drops to the 95% of voltage rating, DC relay, the wind of wind-powered electricity generation are controlled by electric control system
The D.C. contactor closure of electricity, supplies wind-power electricity generation to ± 48V DC bus side, and it is straight by three-phase inverter to be converted to 220V
Galvanic electricity, while the AC relay of wind-powered electricity generation and wind power AC contactor closure, power to ac bus；When microgrid power still not
It is enough, when ac bus voltage drops to the 95% of voltage rating, the direct current relay of photovoltaic power generation is controlled by electric control system
The D.C. contactor closure of device, photovoltaic power generation is supplied wind-power electricity generation to ± 48V DC bus side, and is turned by three-phase inverter
It is changed to 220V direct current, while the AC relay of photovoltaic electric and photovoltaic A.C. contactor closure, is powered to ac bus；When micro-
Grid power is still inadequate, when ac bus voltage drops to the 95% of voltage rating, controls battery group by electric control system
DC relay, D.C. contactor closure, battery group is DC bus powered to ± 48V；When microgrid power has redundancy, exchange
When busbar voltage rises above the 105% of voltage rating, the function of power governor output can be controlled by electric control system
Rate makes ac bus voltage be reduced to voltage rating, and control strategy uses master & slave control, and control algolithm uses SVPWM algorithm.
As a further solution of the present invention: when the power of microgrid has redundancy, the voltage overrate of ac bus
When 105%, the state for the management of charging and discharging device that battery group can be controlled by electric control system is charged state, battery group
Into charged state；When monitoring system detects that the exit potential of battery group reaches voltage rating, pass through electrical control system
DC relay, the D.C. contactor of system control battery group disconnect, and battery group is out of service.
As a further solution of the present invention: when microgrid power has a redundancy, the 105% of ac bus voltage overrate
When, and battery group has logged out operation, controls power governor, reduction hydroelectric generation mould appropriate by electric control system
The power output of quasi- device, this control are controlled using PWM.
As a further solution of the present invention: when microgrid power has a redundancy, the 105% of ac bus voltage overrate
When, and battery group has logged out operation, controls power governor, reduction hydroelectric generation mould appropriate by electric control system
The power output of quasi- device can manually be keyed in, so that electric control system is cut when ac bus voltage is still above 105% by touch screen
Except the power output of Wind Generation Simulator.
As the present invention further scheme: when microgrid power has redundancy, ac bus voltage overrate
When 105%, and battery group has logged out operation, controls power governor, reduction waterpower hair appropriate by electric control system
The power output of electric simulator can manually be keyed in, so that electrical control system when ac bus voltage is still above 105% by touch screen
The power output of system excision Wind Generation Simulator can pass through touch screen when ac bus voltage 105% still above voltage rating
It is artificial to key in, so that the power output of electric control system excision photovoltaic power generation simulator.
Compared with prior art, the beneficial effects of the present invention are:
1. hydroelectric generation, wind-power electricity generation, photovoltaic power generation operation, the safe operation, simplicity may be implemented in this system；
2. this system can flexibly realize water wind complemental power-generation and grid-connected, wind light mutual complementing power generation and grid-connected, water light complemental power-generation and
Grid-connected, water wind light mutual complementing power generation and grid-connected, overcome to a certain extent the randomness of distributed generation resource power producing characteristics, fluctuation,
The disadvantages of intermittent；
3. system load has expansibility；
4. system structure is simple, at low cost, control effect is good.
Detailed description of the invention
Fig. 1 is the schematic diagram of a kind of water wind light mutual complementing power generation and cutting-in control experimental system for simulating.
Fig. 2 is electric control system schematic diagram in a kind of water wind light mutual complementing power generation and cutting-in control experimental system for simulating.
In figure: the single-phase air switch of 1-, 2- hydroelectric generation simulator, 3- Wind Generation Simulator, 4- hydroelectric generation simulation
Device, 5- battery group, 6- D.C. contactor, 7- power governor, 8- management of charging and discharging device, 91- DC relay, 92- exchange
Relay, 10- electric control system, 11- touch screen, 12- display, 13- monitoring system, 14- three-phase inverter, 15- three-phase
Air switch, 161- water power A.C. contactor, 162- wind power AC contactor, 163- photovoltaic A.C. contactor, 17- first are negative
It carries, the load of 18- second, the load of 19- third.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, in the embodiment of the present invention, a kind of water wind light mutual complementing power generation and cutting-in control experimental system for simulating, packet
Include power supply simulation electricity generation module, power grid control module, DC inversion module, AC distribution module and alternating current-direct current electric parameter
Monitoring modular:
The power supply simulation electricity generation module includes hydroelectric generation simulator, Wind Generation Simulator and photovoltaic power generation simulator, institute
It states hydroelectric generation simulator, Wind Generation Simulator and photovoltaic power generation simulator and passes through single-phase air switch respectively and be connected with direct current
Contactor, power governor, and then connection ± 48V DC bus；
The power grid control module includes battery group, and the battery group connects direct current contact by single-phase air switch
Device, management of charging and discharging device, and then connection ± 48V DC bus；
The DC inversion module includes three-phase inverter, and three-phase inverter upstream connection ± 48V DC bus, downstream passes through three
Phase air switch connects 220V with the water power A.C. contactor being connected in parallel with wind power AC contactor, photovoltaic A.C. contactor
Ac bus, by single-phase air switch and respectively to the first load, the second load and third load supplying；
The AC distribution module includes electric control system, and electric control system is connected with touch screen, electric control system control
DC relay, D.C. contactor, AC relay and water power A.C. contactor and the wind power AC contact being connected in parallel processed
Device, photovoltaic A.C. contactor determine whether water power, wind-powered electricity generation and photoelectricity are grid-connected；The electric control system controls the straight of battery group
Current relay, D.C. contactor and management of charging and discharging device determine whether battery group is DC bus powered to ± 48V；
The electric parameter detection module includes monitoring system, and monitoring system is connected with display, and the monitoring system is supervised respectively
Depending on voltage, the voltage of electric current and ac bus, frequency of D.C. contactor, the first load, the second load and third load.
Using the water wind mutual added time, based on water power, when microgrid power is inadequate, ac bus voltage drops to specified electricity
Pressure 95% when, the DC relay of wind-powered electricity generation is controlled by electric control system, the D.C. contactor of wind-powered electricity generation is closed, it is straight to ± 48V
It flows bus bar side and supplies wind-power electricity generation, and 380/220V alternating current, while the exchange relay of wind-powered electricity generation are converted to by three-phase inverter
Device and wind power AC contactor closure, power to ac bus；When microgrid power is still inadequate, ac bus voltage drops to volume
Constant voltage 95% when, the DC relay of battery group is controlled by electric control system, D.C. contactor is closed, control is filled
Electric discharge manager state is discharge condition, and battery group is DC bus powered to ± 48V；When microgrid power has redundancy, exchange is female
When line voltage rises above the 105% of voltage rating, the power of power governor output can be controlled by electric control system,
Ac bus voltage is set to be reduced to voltage rating, control strategy uses master & slave control, and control algolithm uses SVPWM algorithm.
When using wind light mutual complementing, based on wind-powered electricity generation, when microgrid power is inadequate, ac bus voltage drops to specified electricity
Pressure 95% when, the DC relay of wind-power electricity generation is controlled by electric control system, the D.C. contactor of wind-power electricity generation is closed,
Wind-power electricity generation is supplied to ± 48V DC bus side, and 380/220V alternating current, while photovoltaic electric are converted to by three-phase inverter
AC relay and photovoltaic A.C. contactor closure, to ac bus power；When microgrid power is still inadequate, ac bus is electric
When pressure drops to the 95% of voltage rating, closed by DC relay, D.C. contactor that electric control system controls battery group
It closes, the management of charging and discharging device state of battery group is discharge condition, and battery group is DC bus powered to ± 48V；When microgrid function
Rate has redundancy, when ac bus voltage rises above the 105% of voltage rating, can control power tune by electric control system
The power for saving device output makes ac bus voltage be reduced to voltage rating, and control strategy uses master & slave control, and control algolithm uses
SVPWM algorithm.
Using the water light mutual added time, based on water power, when microgrid power is inadequate, ac bus voltage drops to specified electricity
Pressure 95% when, the DC relay of photovoltaic power generation is controlled by electric control system, the D.C. contactor of photovoltaic power generation is closed,
Photovoltaic power generation is supplied to ± 48V DC bus side, and 220V direct current, while the friendship of photovoltaic electric are converted to by three-phase inverter
Current relay and photovoltaic A.C. contactor closure, power to ac bus；When microgrid power is still inadequate, under ac bus voltage
When dropping to the 95% of voltage rating, DC relay, the D.C. contactor closure of battery group are controlled by electric control system,
The management of charging and discharging device state of battery group is discharge condition, and battery group is DC bus powered to ± 48V, and control strategy uses
Master & slave control, control algolithm use SVPWM algorithm.
When with water wind light mutual complementing, based on water power, when microgrid power is inadequate, ac bus voltage drops to specified electricity
Pressure 95% when, the DC relay of wind-powered electricity generation is controlled by electric control system, the D.C. contactor of wind-powered electricity generation is closed, it is straight to ± 48V
Flow bus bar side and supply wind-power electricity generation, and 220V direct current is converted to by three-phase inverter, at the same the AC relay of wind-powered electricity generation with
Wind power AC contactor closure, powers to ac bus；When microgrid power is still inadequate, ac bus voltage drops to specified electricity
Pressure 95% when, the DC relay of photovoltaic power generation is controlled by electric control system, the D.C. contactor of photovoltaic power generation is closed,
Wind-power electricity generation is supplied to ± 48V DC bus side, and 220V direct current, while the friendship of photovoltaic electric are converted to by three-phase inverter
Current relay and photovoltaic A.C. contactor closure, power to ac bus；When microgrid power is still inadequate, under ac bus voltage
When dropping to the 95% of voltage rating, DC relay, the D.C. contactor closure of battery group are controlled by electric control system,
Battery group is DC bus powered to ± 48V；When microgrid power has redundancy, ac bus voltage rises above voltage rating
When 105%, the power of power governor output can be controlled by electric control system, ac bus voltage is made to be reduced to voltage rating,
Control strategy uses master & slave control, and control algolithm uses SVPWM algorithm.
When the power of microgrid has a redundancy, the voltage overrate of ac bus 105% when, electrical control system can be passed through
The state of the management of charging and discharging device of system control battery group is charged state, and battery group enters charged state；Work as monitoring system
When detecting that the exit potential of battery group reaches voltage rating, the direct current relay of battery group is controlled by electric control system
Device, D.C. contactor disconnect, and battery group is out of service.
When microgrid power has a redundancy, ac bus voltage overrate 105% when, and battery group has logged out fortune
Row controls power governor, the power output appropriate for reducing hydroelectric generation simulator by electric control system, this control uses
PWM control.
When microgrid power has a redundancy, ac bus voltage overrate 105% when, and battery group has logged out fortune
Row controls power governor, the power output appropriate for reducing hydroelectric generation simulator, when ac bus electricity by electric control system
It when pressure is still above 105%, can manually be keyed in by touch screen, so that the power output of electric control system excision Wind Generation Simulator.
When microgrid power has a redundancy, ac bus voltage overrate 105% when, and battery group has logged out fortune
Row controls power governor, the power output appropriate for reducing hydroelectric generation simulator, when ac bus electricity by electric control system
When pressure is still above 105%, can manually it be keyed in by touch screen, so that the power output of electric control system excision Wind Generation Simulator,
When ac bus voltage 105% still above voltage rating, can manually be keyed in by touch screen, so that electric control system is cut
Except the power output of photovoltaic power generation simulator.
When simultaneously net operation breaks down, one-way air switch 1 and three-phase air switch 15 will automatically cut off electric current, protection
System safety.
As shown in Fig. 2, the electric control system principle that present example provides is as follows: the ac bus side that measurement is obtained
Voltage inputs in single-chip microcontroller, using PQ control algolithm and V/F control algolithm, controls water power, wind-powered electricity generation, photovoltaic power generation and storage respectively
Whether battery puts into operation.After grid-connected completion, carried out using power output of the power governor to water power, wind-powered electricity generation, photovoltaic micro-
It adjusts, the method for fine tuning is controlled using PWM.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of water wind light mutual complementing power generation and cutting-in control experimental system for simulating, including power supply simulate electricity generation module, power grid
Control module, DC inversion module, AC distribution module and the electrical parameter monitoring module of alternating current-direct current, it is characterised in that:
The power supply simulation electricity generation module includes hydroelectric generation simulator (2), Wind Generation Simulator (3) and photovoltaic power generation simulation
Device (4), the hydroelectric generation simulator (2), Wind Generation Simulator (3) and photovoltaic power generation simulator (4) are respectively by single-phase
Air switch (1) is connected with D.C. contactor (6), power governor (7), and then connection ± 48V DC bus；
The power grid control module includes battery group (5), and the battery group (5) is connected by single-phase air switch (1)
Connect D.C. contactor (6), management of charging and discharging device (8), and then connection ± 48V DC bus；
The DC inversion module includes three-phase inverter (14), three-phase inverter (14) upstream connection ± 48V DC bus, under
Trip by three-phase air switch (15) and be connected in parallel water power A.C. contactor (161) and wind power AC contactor (162),
Photovoltaic A.C. contactor (163) connects 220V ac bus, by single-phase air switch (1) and respectively to the first load (17),
Second load (18) and third load (19) power supply；
The AC distribution module includes electric control system (10), and electric control system (10) is connected with touch screen (11), electricity
The water power that it DC relay (91) that gas control system (10), which controls, D.C. contactor (6), AC relay (92) and be connected in parallel
A.C. contactor (161) and wind power AC contactor (162), photovoltaic A.C. contactor (163) determine water power, wind-powered electricity generation and photoelectricity
It is whether grid-connected；The DC relay (91) of the electric control system (10) control battery group (5), D.C. contactor (6) and
Management of charging and discharging device (8) determines whether battery group (5) is DC bus powered to ± 48V；
The electric parameter detection module includes monitoring system (13), and monitoring system (13) is connected with display (12), the prison
Control system (13) monitors the electricity of D.C. contactor (6), the first load (17), the second load (18) and third load (19) respectively
Pressure, voltage, the frequency of electric current and ac bus.
2. a kind of water wind light mutual complementing power generation according to claim 1 and cutting-in control experimental system for simulating, it is characterised in that:
Using the water wind mutual added time, based on water power, when microgrid power is inadequate, ac bus voltage drops to voltage rating
When 95%, the DC relay (91) of wind-powered electricity generation, D.C. contactor (6) closure of wind-powered electricity generation are controlled by electric control system (10), to
Wind-power electricity generation is supplied in ± 48V DC bus side, and is converted to 380/220V alternating current, while wind-powered electricity generation by three-phase inverter (14)
AC relay (92) and wind power AC contactor (162) closure, to ac bus power；When microgrid power is still inadequate,
When ac bus voltage drops to the 95% of voltage rating, by electric control system (10) control battery group (5) direct current after
Electric appliance (91), D.C. contactor (6) closure, control management of charging and discharging device (8) state be discharge condition, battery group (5) to ±
48V is DC bus powered；When microgrid power has redundancy, and ac bus voltage rises above the 105% of voltage rating, can lead to
The power for crossing electric control system (10) control power governor (7) output, makes ac bus voltage be reduced to voltage rating, controls
Strategy uses master & slave control, and control algolithm uses SVPWM algorithm.
3. a kind of water wind light mutual complementing power generation according to claim 1 and cutting-in control experimental system for simulating, which is characterized in that
When using wind light mutual complementing, based on wind-powered electricity generation, when microgrid power is inadequate, ac bus voltage drops to the 95% of voltage rating
When, it is closed by the D.C. contactor (6) of the DC relay (91) of electric control system (10) control wind-power electricity generation, wind-power electricity generation
It closes, supplies wind-power electricity generation to ± 48V DC bus side, and be converted to 380/220V alternating current by three-phase inverter (14), together
When photovoltaic electric AC relay (92) and photovoltaic A.C. contactor (163) closure, to ac bus power；Work as microgrid power
Still not enough, when ac bus voltage drops to the 95% of voltage rating, battery group (5) are controlled by electric control system (10)
DC relay (91), D.C. contactor (6) closure, management of charging and discharging device (8) state of battery group (6) is electric discharge shape
State, battery group (5) are DC bus powered to ± 48V；When microgrid power has redundancy, ac bus voltage rises above specified
Voltage 105% when, can by electric control system (10) control power governor (7) output power, make ac bus voltage
It is reduced to voltage rating, control strategy uses master & slave control, and control algolithm uses SVPWM algorithm.
4. a kind of water wind light mutual complementing power generation according to claim 1 and cutting-in control experimental system for simulating, which is characterized in that
Using the water light mutual added time, based on water power, when microgrid power is inadequate, ac bus voltage drops to the 95% of voltage rating
When, it is closed by the D.C. contactor (6) of the DC relay (91) of electric control system (10) control photovoltaic power generation, photovoltaic power generation
It closes, supplies photovoltaic power generation to ± 48V DC bus side, and be converted to 220V direct current, same time by three-phase inverter (14)
The AC relay (92) and photovoltaic A.C. contactor (163) closure for lying prostrate electricity, power to ac bus；When microgrid power still not
It is enough, when ac bus voltage drops to the 95% of voltage rating, pass through the straight of electric control system (10) control battery group (5)
Current relay (91), D.C. contactor (6) closure, management of charging and discharging device (8) state of battery group (6) are discharge condition, are stored
Battery pack (5) is DC bus powered to ± 48V, and control strategy uses master & slave control, and control algolithm uses SVPWM algorithm.
5. a kind of water wind light mutual complementing power generation according to claim 1 and cutting-in control experimental system for simulating, which is characterized in that
When using water wind light mutual complementing, based on water power, when microgrid power is inadequate, ac bus voltage drops to voltage rating
When 95%, the DC relay (91) of wind-powered electricity generation, D.C. contactor (6) closure of wind-powered electricity generation are controlled by electric control system (10), to
Wind-power electricity generation is supplied in ± 48V DC bus side, and is converted to 220V direct current, while the friendship of wind-powered electricity generation by three-phase inverter (14)
Current relay (92) and wind power AC contactor (162) closure, power to ac bus；When microgrid power is still inadequate, exchange
When busbar voltage drops to the 95% of voltage rating, the DC relay of photovoltaic power generation is controlled by electric control system (10)
(91), D.C. contactor (6) closure of photovoltaic power generation, supplies wind-power electricity generation to ± 48V DC bus side, and pass through three-phase inversion
Device (14) is converted to 220V direct current, while the AC relay (92) of photovoltaic electric and photovoltaic A.C. contactor (163) closure, to
Ac bus power supply；When microgrid power is still inadequate, and ac bus voltage drops to the 95% of voltage rating, pass through electric-controlled
The DC relay (91) of system (10) processed control battery group (5), D.C. contactor (6) closure, battery group (5) to ±
48V is DC bus powered；When microgrid power has redundancy, and ac bus voltage rises above the 105% of voltage rating, can lead to
The power for crossing electric control system (10) control power governor (7) output, makes ac bus voltage be reduced to voltage rating, controls
Strategy uses master & slave control, and control algolithm uses SVPWM algorithm.
6. a kind of water wind light mutual complementing power generation and cutting-in control experimental system for simulating according to claim 2-5 any one,
It is characterized in that, the power when microgrid has a redundancy, the voltage overrate of ac bus 105% when, electrical control can be passed through
The state that system (10) controls the management of charging and discharging device (8) of battery group (5) is charged state, and battery group (5) enters charging
State；When monitoring system (13) detects that the exit potential of battery group (5) reaches voltage rating, pass through electric control system
(10) DC relay (91), D.C. contactor (6) disconnection of battery group (5) are controlled, battery group (5) is out of service.
7. a kind of water wind light mutual complementing power generation according to claim 2 or 4 and cutting-in control experimental system for simulating, feature exist
In, when microgrid power has a redundancy, ac bus voltage overrate 105% when, and battery group (5) has logged out operation,
Power governor (8) are controlled by electric control system (10), the power output appropriate for reducing hydroelectric generation simulator (2), this control
System is controlled using PWM.
8. a kind of water wind light mutual complementing power generation according to claim 2 and cutting-in control experimental system for simulating, which is characterized in that
When microgrid power has a redundancy, ac bus voltage overrate 105% when, and battery group (5) has logged out operation, leads to
Electric control system (10) control power governor (8) is crossed, the power output appropriate for reducing hydroelectric generation simulator (2) works as exchange
It when busbar voltage is still above 105%, can manually be keyed in by touch screen (11), so that electric control system (10) excision wind-force hair
The power output of electric simulator (3).
9. a kind of water wind light mutual complementing power generation according to claim 5 and cutting-in control experimental system for simulating, which is characterized in that
When microgrid power has a redundancy, ac bus voltage overrate 105% when, and battery group (5) has logged out operation, leads to
Electric control system (10) control power governor (8) is crossed, the power output appropriate for reducing hydroelectric generation simulator (2) works as exchange
It when busbar voltage is still above 105%, can manually be keyed in by touch screen (11), so that electric control system (10) excision wind-force hair
The power output of electric simulator (3) can pass through touch screen (11) artificial key when ac bus voltage 105% still above voltage rating
Enter, so that the power output of electric control system (10) excision photovoltaic power generation simulator (4).
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