CN110768355A - Direct-current networking wind-solar-diesel land-storage power station system and working method thereof - Google Patents
Direct-current networking wind-solar-diesel land-storage power station system and working method thereof Download PDFInfo
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- 230000006855 networking Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims description 10
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 29
- 239000003990 capacitor Substances 0.000 claims abstract description 28
- 230000001360 synchronised effect Effects 0.000 claims abstract description 24
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims description 8
- 230000001629 suppression Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 241001672018 Cercomela melanura Species 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 10
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- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J11/00—Circuit arrangements for providing service supply to auxiliaries of stations in which electric power is generated, distributed or converted
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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Abstract
The invention discloses a direct-current networking wind-solar-diesel land-storage power station system, which comprises: the system comprises a wind generating set, a photovoltaic array, a super capacitor, a large-capacity battery pack, a direct current converter, a bidirectional direct current converter, an inverter, a first direct current bus, a second direct current bus, an alternating current bus, a first main transformer, a second main transformer, a rectifier, a synchronous diesel generating set and an energy management module. According to the invention, the wind generating set, the photovoltaic array, the super capacitor, the high-capacity storage battery pack and the synchronous diesel generating set are connected through a direct-current networking technology, so that an alternating-current parallel operation device, a black start device and a power transformer are reduced; the renewable energy, the stored energy and the capacity ratio of the diesel generator set are reasonably configured, so that the utilization rate of the renewable energy is maximized, the charging and discharging times of a high-capacity storage battery pack are reduced, and the starting times and duration of the diesel generator set are reduced; the high-capacity inverter provides electric energy for peripheral loads and outputs pure sine waves.
Description
Technical Field
The invention relates to a direct-current networking wind-solar-diesel land-storage power station system and a working method thereof, and belongs to the technical field of micro-grid systems.
Background
The power supply plays a decisive role in economic development and regional construction of economic lag or remote regions, complete public power grids are not usually established in the regions, and the diesel engine generator set becomes a preferred power source by the characteristics of stability, long term and reliability. In the land power station system of the diesel generating set constructed in the past, n (used) +1 (standby) diesel generating sets are generally selected according to the actual local power demand. In the peak period of the power load in the daytime, the power station system runs at full load, and at night, the power load is greatly reduced, but in order to meet the power consumption (including the power station self-power consumption) requirements, a small number of diesel generating sets still need to be maintained in a starting operation state; the long-term operation of the diesel generator set brings emission and noise pollution, and meanwhile, the basic oil consumption of the diesel generator set during starting up reaches 70% of the full-load oil consumption, so that the starting time is reduced under the condition of meeting the requirements as much as possible in the aspect of economy; and the annual operating hours of the diesel generator set have certain limits, and the maintenance cost is high after the annual operating hours exceed the limits. At present, a wind-diesel-storage complementary land power station is put into construction, an alternating-current network is adopted, the control is complex, photovoltaic, energy storage and diesel generator set control strategies are mutually independent, the multi-energy complementary degree is low, and the problems of environmental pollution and operation economy cannot be fundamentally solved.
Disclosure of Invention
The invention provides a direct-current networking wind, light and diesel land storage power station system and a working method thereof, and aims to solve the technical problems that in the prior art, the power consumption is high when the power load is low, the control of the prior system is complex, and the environmental pollution exists.
The invention provides a direct-current networking wind-solar-diesel land-storage power station system, which comprises: the system comprises a wind generating set, a photovoltaic array, a super capacitor, a large-capacity battery pack, a direct current converter, a bidirectional direct current converter, an inverter, a first direct current bus, a second direct current bus, an alternating current bus, a first main transformer, a second main transformer, a rectifier, a synchronous diesel generating set and an energy management module; the wind generating set is connected with the first direct current bus through the direct current converter; the photovoltaic array is connected with the first direct current bus through the direct current converter; the super capacitor is connected with the first direct current bus through the bidirectional direct current converter; the high-capacity battery pack is connected with the first direct current bus through the bidirectional direct current converter; the first direct current bus is connected with the alternating current bus through the inverter; the first direct current bus is connected with the first main transformer through the inverter; the first direct current bus is connected with the second direct current bus through the bidirectional direct current converter; the second direct current bus is connected with the synchronous diesel generator set through the rectifier; the second direct current bus is connected with the second main transformer through the inverter; the energy management module is respectively connected with the wind generating set, the photovoltaic array, the super capacitor, the high-capacity battery pack and the synchronous diesel generating set.
Further, the energy management module includes: the system comprises a PLC controller, a processing unit, a local operation screen and a remote operation screen; the PLC is respectively connected with the wind generating set, the photovoltaic array, the super capacitor, the high-capacity battery pack, the synchronous diesel generating set, the processing unit, the local operation screen and the remote operation screen.
Further, the wind generating set is a direct-drive permanent magnet synchronous generator integrated with a rectifying device.
Further, the capacity of the super capacitor meets 30% of the installed energy fluctuation stabilizing capacity of the power station within 20S of the renewable energy capacity.
The invention also provides a working method of the direct-current networking wind-solar-diesel land-storage power station system,
1. the power supply station uses power by itself:
the first direct current bus outputs electric energy to an alternating current bus through inversion of an inverter, and the alternating current bus is used for power supply stations;
2. daytime power supply mode:
the wind generating set and the photovoltaic array output electric energy to a first direct current bus through a direct current converter, and the first direct current bus supplies a first main transformer of an electric energy output value to a load through an inverter;
the synchronous diesel generator set outputs electric energy to a second direct current bus through the rectifier, and the second direct current bus outputs the electric energy to a second main transformer for load use through the inverter;
the PLC controller controls the super capacitor to obtain electric energy from the first direct current bus through the bidirectional direct current converter for charging and discharging, and the PLC controller stabilizes voltage fluctuation of the first direct current bus through the super capacitor and the bidirectional direct current converter;
the PLC controller controls the high-capacity battery pack to acquire electric energy from the first direct current bus through the bidirectional direct current converter for charging;
3. night power supply mode:
stopping a plurality of synchronous diesel generators; the PLC controls the super capacitor and the high-capacity battery pack to supply power to the first direct current bus through the bidirectional direct current converter according to the power consumption load, and the voltage of the first direct current bus is maintained to be stable.
Further, the wind generating set and the photovoltaic array operate at the maximum power point.
Further, in the night power supply mode, the method further includes: when the electric load is larger than the energy supply of the super capacitor and the large-capacity battery pack, one or more synchronous diesel generators are started.
The invention has the beneficial effects that:
according to the invention, the wind generating set, the photovoltaic array, the super capacitor, the high-capacity storage battery pack and the synchronous diesel generating set are connected through a direct-current networking technology, so that an alternating-current parallel operation device, a black start device and a power transformer are reduced; the renewable energy, the stored energy and the capacity ratio of the diesel generating set are reasonably configured, the power station system is divided into two sections of direct current buses, an energy control strategy is optimized, the utilization rate of the renewable energy is maximized, the charging and discharging times of a high-capacity storage battery pack are reduced, and the starting times and the starting time of the diesel generating set are reduced; the high-capacity inverter provides electric energy for peripheral loads and outputs pure sine waves.
The system is divided into a first direct current bus and a second direct current bus, and the two direct current buses are connected through the bidirectional direct current converter, so that the energy bidirectional flow of the two direct current buses can be realized, and the energy dispatching is facilitated.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
FIG. 1 is a main circuit topology diagram of a DC networking wind, light, diesel and land storage power station system in the invention;
FIG. 2 is a connection diagram of the energy management module and each device in the main circuit topology.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, an embodiment of the invention provides a direct-current networking wind, solar and diesel land storage power station system, which comprises a wind generating set (1), a photovoltaic array (2), a super capacitor (3), a large-capacity battery pack (4), synchronous diesel generating sets (19-21) and an energy management module. The wind generating set (1) adopts a direct-drive permanent magnet synchronous generator and integrates a rectifying device, the wind generating set operates at the maximum power point and is connected with a first direct current bus (9) through a direct current converter (5), and the output voltage of the direct current converter (5) is the rated voltage of the first direct current bus (9); the photovoltaic array (2) runs at the maximum power point and is connected with a first direct current bus (9) through a direct current converter (6), and the output voltage of the direct current converter (6) is the rated voltage of the first direct current bus (9); the super capacitor (3) is connected with a first direct current bus (9) through a bidirectional direct current converter (7), and the bidirectional direct current converter (7) realizes the rapid charge and discharge control of the super capacitor (3); the high-capacity storage battery pack (4) is connected with a first direct current bus (9) through a bidirectional direct current converter (8), and the bidirectional direct current converter (8) realizes the charge-discharge control of the storage battery; the first direct current bus (9) is connected with an alternating current bus (11) through an inverter (10), and the alternating current bus (11) provides power supply for diesel oil-generating water gas supply, a direct current screen, a UPS and other equipment; the first direct current bus (9) is connected with a first main transformer through an inverter (13) and transmits electric energy to the outside; the synchronous diesel generator sets (19-21) are connected with the second direct current bus (15) through rectifiers (16-18) to provide electric energy for the second direct current bus (15); the first direct current bus (9) and the second direct current bus (15) are connected through the bidirectional direct current converter (12), when the voltage of the first direct current bus is higher than a rated value, the electric energy of the first direct current bus can be transmitted to the second direct current bus through the bidirectional direct current converter (12), and the throttle reading of the diesel generator set is synchronously reduced.
Energy management module includes PLC controller, processing unit, local control screen, remote control screen, data gateway, switch and UPS etc. and the PLC controller includes: the system comprises a signal acquisition module, a central processing module, a power management module and a load management module, wherein the processing unit comprises: server, workstation. The PLC is connected with a wind generating set (1), a photovoltaic array (2), a super capacitor (3), a large-capacity battery pack (4) and a synchronous diesel generating set (19-21); acquiring output power, residual capacity, alternating current and direct current bus voltage, current and peripheral electric load of each device in real time; and through analysis and processing, the start and stop and the power output of the power electronic equipment are coordinately controlled. The PLC forms an energy integrated management local area network with the gateway, the switch, the local control screen and the remote control screen, and data interconnection and intercommunication can be realized; the system parameter setting, data storage, analysis and monitoring are carried out through the server and the work station, and the local and remote control screens can display real-time or historical power station operation data locally or remotely.
The configuration of the credible power generation capacity of the wind generating set and the photovoltaic array and the capacity of the diesel generating set is larger than the demand of the peak capacity of the daytime power utilization (including station power utilization), the capacity of the storage battery energy storage system and the credible capacity of the nighttime wind generating set are combined for power supply, so that the demand of the 6h power utilization of the peak power utilization (including station power utilization) at nighttime can be met, and the capacity configuration of the super capacitor can meet the 30% fluctuation stabilizing capacity of the installed capacity of the power station within 20S of the capacity.
The system of the invention works as follows, an inverter (10) connected with a first direct current bus inverts and outputs to an alternating current bus (11) for power station self-utilization. During the peak period of power utilization in daytime, a stable and planned load is borne by a second main transformer, a synchronous diesel generator set (19-21) is connected with a second direct-current bus through a rectifier (16-18), electric energy on the second direct-current bus is transmitted to the second main transformer through an inverter (14), photovoltaic and wind power resources can be utilized in daytime, the inverter (13) inverts and outputs energy on the first direct-current bus to the first main transformer for use together with other loads, through information acquisition and logic judgment, the energy management module controls a super capacitor (3) to rapidly charge and discharge through a bidirectional direct-current converter (7), and the bidirectional direct-current converter (12) bidirectionally stores energy to stabilize the voltage fluctuation of the first direct-current bus (9) caused by instability of photovoltaic and wind power generation, and meanwhile, the storage battery pack (4) with large capacity stores energy in a charging mode. When the night comes, the electric load is greatly reduced, and the high-capacity storage battery pack (4) maintains the voltage stability of the first direct current bus through the bidirectional direct current converter to provide electric energy for the first main transformer and the alternating current bus (11); if the load fluctuates, the super capacitor (3) discharges to the first direct current bus through the bidirectional direct current converter (7) to maintain the voltage to be stable according to a preset control strategy; when the power consumption exceeds the design at night, the large-capacity storage battery pack is not enough to supply the power supply at night, and the diesel generator starts one or a plurality of maintenance systems to operate according to the power load gap.
The system of the invention utilizes the direct current networking technology, reduces alternating current equipment, reduces the control difficulty of the system, fully utilizes renewable energy sources, and reduces the starting times and the running time of the diesel generating set; the power station is easy to expand or transform into a full renewable energy power station.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (7)
1. A direct current network deployment scene firewood stores up land and uses power station system, its characterized in that includes: the system comprises a wind generating set, a photovoltaic array, a super capacitor, a large-capacity battery pack, a direct current converter, a bidirectional direct current converter, an inverter, a first direct current bus, a second direct current bus, an alternating current bus, a first main transformer, a second main transformer, a rectifier, a synchronous diesel generating set and an energy management module; the wind generating set is connected with the first direct current bus through the direct current converter; the photovoltaic array is connected with the first direct current bus through the direct current converter; the super capacitor is connected with the first direct current bus through the bidirectional direct current converter; the high-capacity battery pack is connected with the first direct current bus through the bidirectional direct current converter; the first direct current bus is connected with the alternating current bus through the inverter; the first direct current bus is connected with the first main transformer through the inverter; the first direct current bus is connected with the second direct current bus through the bidirectional direct current converter; the second direct current bus is connected with the synchronous diesel generator set through the rectifier; the second direct current bus is connected with the second main transformer through the inverter; the energy management module is respectively connected with the wind generating set, the photovoltaic array, the super capacitor, the high-capacity battery pack and the synchronous diesel generating set.
2. The dc networked wind, light, diesel land storage power plant system of claim 1, wherein the energy management module comprises: the system comprises a PLC controller, a processing unit, a local operation screen and a remote operation screen; the PLC is respectively connected with the wind generating set, the photovoltaic array, the super capacitor, the high-capacity battery pack, the synchronous diesel generating set, the processing unit, the local operation screen and the remote operation screen.
3. The dc networked wind, light, diesel land storage power plant system of claim 1, wherein said wind turbine is a direct drive permanent magnet synchronous generator incorporating a rectifying device.
4. The direct-current networking wind, light and diesel land storage power station system as claimed in any one of claims 1 to 3, wherein the capacity of the super capacitor meets 30% of installed energy fluctuation suppression capacity of the power station within 20S of renewable energy capacity.
5. A working method of a direct-current networking wind, light and diesel land storage power station system is characterized by comprising the following working modes:
1. the power supply station uses power by itself:
the first direct current bus outputs electric energy to an alternating current bus through inversion of an inverter, and the alternating current bus is used for power supply stations;
2. daytime power supply mode:
the wind generating set and the photovoltaic array output electric energy to a first direct current bus through a direct current converter, and the first direct current bus supplies a first main transformer of an electric energy output value to a load through an inverter;
the synchronous diesel generator set outputs electric energy to a second direct current bus through the rectifier, and the second direct current bus outputs the electric energy to a second main transformer for load use through the inverter;
the PLC controller controls the super capacitor to obtain electric energy from the first direct current bus through the bidirectional direct current converter for charging and discharging, and the PLC controller stabilizes voltage fluctuation of the first direct current bus through the super capacitor and the bidirectional direct current converter;
the PLC controller controls the high-capacity battery pack to acquire electric energy from the first direct current bus through the bidirectional direct current converter for charging;
3. night power supply mode:
stopping a plurality of synchronous diesel generators; the PLC controls the super capacitor and the high-capacity battery pack to supply power to the first direct current bus through the bidirectional direct current converter according to the power consumption load, and the voltage of the first direct current bus is maintained to be stable.
6. The method of operating a dc networked wind, solar, diesel, land storage power plant system of claim 5, wherein said wind turbine generator set, photovoltaic array, operate at maximum power point.
7. The operation method of the dc networking wind, light and diesel land storage power station system according to claim 5 or 6, characterized in that in the night power supply mode, the method further comprises: when the electric load is larger than the energy supply of the super capacitor and the large-capacity battery pack, one or more synchronous diesel generators are started.
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| CN201911197244.2A CN110768355B (en) | 2019-11-29 | 2019-11-29 | DC networking wind-solar-diesel-storage land power station system and working method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111231724A (en) * | 2020-02-27 | 2020-06-05 | 国网山东省电力公司潍坊供电公司 | Electric vehicle charging station operation control system and method |
| CN113437743A (en) * | 2021-05-18 | 2021-09-24 | 深圳供电局有限公司 | Power supply system |
| CN113708462A (en) * | 2021-09-23 | 2021-11-26 | 北京国电光宇机电设备有限公司 | Alternating current-direct current integrated power supply system based on storage battery online management |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673329A (en) * | 2015-09-02 | 2016-06-15 | 张桂臣 | Wind power, photovoltaic power, stored energy and wave energy comprehensive utilization power generation device for ship |
| CN107516912A (en) * | 2016-06-15 | 2017-12-26 | 中兴电工机械股份有限公司 | Mobile micro-grid system and control method |
| CN108347063A (en) * | 2018-01-17 | 2018-07-31 | 武汉理工大学 | A kind of ship grid-connected photovoltaic system based on super capacitor energy-storage |
-
2019
- 2019-11-29 CN CN201911197244.2A patent/CN110768355B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673329A (en) * | 2015-09-02 | 2016-06-15 | 张桂臣 | Wind power, photovoltaic power, stored energy and wave energy comprehensive utilization power generation device for ship |
| CN107516912A (en) * | 2016-06-15 | 2017-12-26 | 中兴电工机械股份有限公司 | Mobile micro-grid system and control method |
| CN108347063A (en) * | 2018-01-17 | 2018-07-31 | 武汉理工大学 | A kind of ship grid-connected photovoltaic system based on super capacitor energy-storage |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111231724A (en) * | 2020-02-27 | 2020-06-05 | 国网山东省电力公司潍坊供电公司 | Electric vehicle charging station operation control system and method |
| CN111231724B (en) * | 2020-02-27 | 2021-12-03 | 国网山东省电力公司潍坊供电公司 | Operation control method for electric vehicle charging station |
| CN113437743A (en) * | 2021-05-18 | 2021-09-24 | 深圳供电局有限公司 | Power supply system |
| CN113437743B (en) * | 2021-05-18 | 2023-08-25 | 深圳供电局有限公司 | power supply system |
| CN113708462A (en) * | 2021-09-23 | 2021-11-26 | 北京国电光宇机电设备有限公司 | Alternating current-direct current integrated power supply system based on storage battery online management |
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| CN110768355B (en) | 2024-01-30 |
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