CN106953356A - Under a kind of island mode without energy storage wind-solar-diesel complementary electric power system and method - Google Patents

Under a kind of island mode without energy storage wind-solar-diesel complementary electric power system and method Download PDF

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Publication number
CN106953356A
CN106953356A CN201710223636.6A CN201710223636A CN106953356A CN 106953356 A CN106953356 A CN 106953356A CN 201710223636 A CN201710223636 A CN 201710223636A CN 106953356 A CN106953356 A CN 106953356A
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China
Prior art keywords
power
wind
energy
output
diesel
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CN201710223636.6A
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Chinese (zh)
Inventor
岳东
杨雪健
张腾飞
赵昕
马建川
窦春霞
张朋
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Nanjing Post and Telecommunication University
Nanjing University of Posts and Telecommunications
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Nanjing Post and Telecommunication University
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Priority to CN201710223636.6A priority Critical patent/CN106953356A/en
Publication of CN106953356A publication Critical patent/CN106953356A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381Dispersed generators
    • H02J3/382Dispersed generators the generators exploiting renewable energy
    • H02J3/383Solar energy, e.g. photovoltaic energy
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381Dispersed generators
    • H02J3/382Dispersed generators the generators exploiting renewable energy
    • H02J3/386Wind energy
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46Controlling of the sharing of output between the generators, converters, or transformers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/388Islanding, i.e. disconnection of local power supply from the network
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/76Power conversion electric or electronic aspects

Abstract

The invention discloses, without energy storage wind-solar-diesel complementary electric power system and method, system includes under a kind of island mode:Photovoltaic generating system and wind generator system, energy conversion unit, diesel generating set, oil pumping unit, intelligent power control unit, intelligent monitoring unit.Method includes initialization and starts electric power system;The changed AC energy of detection obtains photovoltaic generation power and wind-power electricity generation power;And obtain the actual motion power of oil pumping unit;Judge whether to be in normal condition, and compared photovoltaic generation power and wind-power electricity generation power with predetermined threshold value respectively when judging and being in normal condition:Control the AC energy for being changed energy conversion unit to input in power network according to comparative result and complete grid-connected, and generation and the control parameter for exporting the power output for adjusting diesel generating set.The present invention realizes that wind-light-diesel grid type generates electricity, and can carry out regulation and control distribution to wind-power electricity generation and photovoltaic generation power, to realize to the making full use of of generation of electricity by new energy, reduce the oil consumption of diesel-driven generator most possibly.

Description

Under a kind of island mode without energy storage wind-solar-diesel complementary electric power system and method
Technical field
The present invention relates to, without energy storage wind-solar-diesel complementary electric power system and method, belong to wind-light-diesel mutual under a kind of island mode Mend the technical field of power supply.
Background technology
Fast-developing along with world economy, energy crisis and environmental problem are also increasingly highlighted, and have become the mankind One of significant problem of institute's urgent need to resolve.In this case, the generation of electricity by new energy such as wind energy, solar energy, biomass energy, geothermal energy Mode turns into the focus of research, wherein both inexhaustible, nexhaustible cleaning, renewable resources of wind energy and solar energy more It is to be favored by people.In these years, also deepened continuously for the research that these emerging energies are utilized.
As a major oil producer, the oil field of China is largely all distributed in northwest, northeast and southern areas, these three ground The oil field in area is distributed in the openings such as Gobi desert, grassland, strand mostly again.These regions are general all remote, in isolated island State, relying on bulk power grid to power, the remote laying cable of needs, cost be too high, deficiency in economic performance.These areas mostly lead at present Diesel generating set is crossed to meet the power demands of oil pumping unit, but the aggravation with energy crisis and new energy power generation technology Develop rapidly, such as how most economical form makes full use of new energy, the oil consumption that is greatly decreased diesel engine unit is current urgent The problem of needing to solve;On the other hand, these region sunshine-duration length, illumination is sufficient, physical features is open, wind resource is abundant, non- The often access of suitable wind-light complementary system.
China scientific research personnel develops many wind-photovoltaic complementary power supply systems to utilize new energy to send out currently for this case The problem of determining electricity shortage is electrolysed, they are mostly using the electric complementary power supply system of wind-light-diesel, although so efficiently utilize new The energy, but oil pumping unit is originally power consumption load, wind, photosystem generated output ordinary circumstance can not meet this and bear Batteries can only be charged, so batteries charge and discharge by the demand of load in a short time beyond the demand entirely loaded Electric depth is unable to reach normal value, substantially reduces the life-span of batteries, and electric energy is by accumulators store and release and adds Big electric energy loss, adds the O&M cost of system.Secondly the electric complementary system of wind-light-diesel is off-network type, energy storage and stand-by power supply All be it is preferential by battery, if the popularization of load, then batteries must just increase, thus whole system into Originally substantially increase.The wind light generation that the last electric complementary system of existing wind-light-diesel is used dispatches switchover policy simply to use Wind light generation is saved for the purpose of diesel oil, and the mesh of the saving diesel oil to reach maximum is not maximally utilized to generation of electricity by new energy 's.
The content of the invention
The technical problems to be solved by the invention are to overcome the deficiencies in the prior art there is provided the nothing under a kind of island mode Energy storage wind-solar-diesel complementary electric power system, it is all preferential by storing to solve existing system energy storage and stand-by power supply under off-network type basis Battery charges, it is necessary to rely on to batteries, and for the purpose of saving diesel oil using wind light generation, it is impossible to new energy is sent out The problem of electricity is maximally utilized.
It is of the invention specific using following technical scheme solution above-mentioned technical problem:
Under a kind of island mode without energy storage wind-solar-diesel complementary electric power system, including:
Photovoltaic generating system and wind generator system, are respectively used to photovoltaic generation and wind-power electricity generation obtains electric energy;
Energy conversion unit, is changed to AC energy output for obtaining electric energy to photovoltaic generation and wind-power electricity generation;
Diesel generating set, remains electric for the main power supply unit started as system load, and when system is normally run The frequency and voltage stabilization of net, and its power output is adjusted according to the control parameter of reception;
Oil pumping unit, for the load as system;
Intelligent power control unit, the AC energy for detecting energy conversion unit output obtains photovoltaic generation power and wind-force Generated output, and detect that the running status of oil pumping unit obtains the output actual power of oil pumping unit;And judge gained photovoltaic hair Whether electrical power and wind-power electricity generation power, the output actual power for unit of pumping are in normal condition, and are judging to be in just Comparative result during normal state according to photovoltaic generation power and wind-power electricity generation power respectively with predetermined threshold value, control converts energy The AC energy of unit output is grid-connected, or generation and output adjust diesel generating set power output to meet current loads demand Control parameter;
Intelligent monitoring unit, for receiving and showing the output actual power of oil pumping unit, light obtained by intelligent power control unit Lie prostrate generated output, wind-power electricity generation power, and diesel-driven generator power output.
Further, as a preferred technical solution of the present invention:The energy conversion unit include photovoltaic controller, Wind-powered electricity generation controller, and the inverter control all-in-one machine being connected respectively with photovoltaic controller, wind-powered electricity generation controller.
Further, as a preferred technical solution of the present invention:The intelligent power control unit includes power intelligence Can allocation unit and and machine unit.
Further, as a preferred technical solution of the present invention:The intelligent power control unit also includes being used for By unloader derived from AC energy.
Further, as a preferred technical solution of the present invention:The intelligent monitoring unit uses mobile terminal.
The present invention also propose under a kind of island mode without energy storage wind-solar-diesel complementary method of supplying power to, comprise the following steps:
Initialization starts electric power system, and according to the power output of current loads demand regulation diesel generating set;
Photovoltaic generation and wind-power electricity generation are obtained electric energy and changed to AC energy, and detection gained AC energy acquisition photovoltaic by control Generated output and wind-power electricity generation power;And the running status of the loaded oil pumping unit of detection, obtain the output reality of oil pumping unit Border power;
Judge gained photovoltaic generation power and wind-power electricity generation power, whether the output actual power for unit of pumping is in normal shape State, and compared photovoltaic generation power and wind-power electricity generation power with predetermined threshold value respectively when judging and being in normal condition:
When photovoltaic generation power or wind-power electricity generation power are less than predetermined threshold value, generate and export for adjusting diesel generating set Power output to meet the control parameter of current loads demand;
When photovoltaic generation power or wind-power electricity generation power are more than or equal to predetermined threshold value, control will be handed over obtained by energy conversion unit Flow electric energy grid-connected;And detect whether photovoltaic generation power or wind-power electricity generation power meet current loads demand after being incorporated into the power networks, Generated according to testing result and export the power output for diesel generating set to meet the control of grid-connected rear current loads demand Parameter processed;
The diesel generating set adjusts the power output of diesel generating set according to control parameter.
Further, as a preferred technical solution of the present invention:Methods described is tied after being incorporated into the power networks according to detection Fruit generation and output control parameter, including:
When testing result is to be unsatisfactory for current loads demand, generated output or wind-power electricity generation power are lied prostrate according to photovoltaic and born with current Lotus demand difference, generation and output control parameter make it that the power output for adjusting diesel generating set meets current loads demand;
When testing result for when meeting current loads demand, generation and output make it that diesel generating set is defeated with minimum output power The control parameter gone out, and control will meet the export of the remaining AC energy after current loads demand.
Further, as a preferred technical solution of the present invention:Methods described also includes to gained photovoltaic generation work( Rate, wind-power electricity generation power, the output actual power of unit of pumping and the power output of diesel-driven generator are uploaded in real time.
The present invention uses above-mentioned technical proposal, can produce following technique effect:
The present invention island mode under without energy storage wind-solar-diesel complementary electric power system and method, for existing diesel generating set bavin The problem of oil consumption is larger, sets up the electric power system being incorporated into the power networks by generation of electricity by new energy and diesel generating set, realizes and saves bavin Oil, the target for improving generation of electricity by new energy utilization rate.
By intelligent power control unit and machine unit access system, then whole system voltage, frequency, phase are entered Row control, instead of batteries, and realization changes into grid-connected system from off-network type electricity generation system, so in oil field so Under large-scale load environment, substantial amounts of batteries can be removed, realized without energy storage, so as to save system cost.
The present invention uses new Optimal Control Strategy by the power intelligent allocation unit of intelligent power control unit, can be with Regulation and control distribution is carried out to wind-power electricity generation and photovoltaic generation power, to realize that the maximum to generation of electricity by new energy is utilized, diesel oil is reduced and disappears Consumption, realizes and reduces system cost.Realize that field area supply of electric power is certainly under island mode by wind-solar-diesel complementary electric power system To self-sustaining, without relying on bulk power grid to power, cost-effective purpose is reached.
The present invention has the advantage that compared to traditional system:(1)Using the wind-power electricity generation and photovoltaic generation of cleaning, fit For widely using for marginal fields area oil pumping unit;(2)Energy storage need not be configured, cost and pollution is saved;(3)New energy The access of generator unit, significantly reduces the power output of diesel-driven generator, reduces the consumption of diesel oil;(4)Generation of electricity by new energy In the case that unit power output can meet requirement, the output of diesel engine unit low-power is maintained, power voltage phase stabilization is carried out, Whole system stable operation can be kept.(5)Supported and emergency service unit, effectively improved as system using diesel-driven generator The reliability of whole system.
To sum up, the present invention is generated electricity by way of merging two or more grid systems power supply using wind-light-diesel, is saved energy-storage units and is improved the Mean of system Time and the secondary pollution for avoiding battery, so that cost of electricity-generating is greatly lowered, to reach the purpose for saving system cost, With larger practical value.
Brief description of the drawings
Fig. 1 is the module diagram without energy storage wind-solar-diesel complementary electric power system under the island mode of the present invention.
Fig. 2 is the schematic flow sheet without energy storage wind-solar-diesel complementary method of supplying power under the island mode of the present invention.
Embodiment
Embodiments of the present invention are described with reference to Figure of description.
As shown in figure 1, the present invention devise under a kind of island mode without energy storage wind-solar-diesel complementary electric power system, system master Will be by photovoltaic generating system, wind generator system, diesel generating set, energy conversion unit, intelligent power control unit, intelligence Monitoring unit and the most of composition of oil pumper seven, the field area electricity under island mode is realized by wind-solar-diesel complementary electric power system Power supply is self-sufficient, without relying on bulk power grid to power, reaches cost-effective purpose.
Specifically, photovoltaic generating system includes Photovoltaic array in the system, and electric energy is obtained for photovoltaic generation.
The wind generator system, including wind power generating set, electric energy is obtained for wind-power electricity generation.
The energy conversion unit, turns for completing direct current to AC energy to electric energy obtained by photovoltaic generation and wind-power electricity generation Change;Preferably include photovoltaic controller, wind-powered electricity generation controller, and the inversion control being connected respectively with photovoltaic controller, wind-powered electricity generation controller All-in-one, wherein photovoltaic controller are used to photovoltaic generation acquisition electric energy being converted to direct current energy, and the wind-powered electricity generation controller is used for Wind-power electricity generation acquisition electric energy is converted into direct current energy, subsequent direct current is transported in inverter control all-in-one machine;The inversion control All-in-one processed is then used to direct current energy changing into AC energy output, so that realize will be unstable produced by generation of electricity by new energy Power changes into firm power and voltage is supplied to whole system to use.
The diesel generating set, normally runs for the main power supply unit started as system load, and in system When maintain the frequency and voltage stabilization of power network, its power output is adjusted according to the control parameter of reception.
The oil pumping unit, for the load as system.
The intelligent power control unit, the AC energy for detecting energy conversion unit output obtains photovoltaic generation work( Rate and wind-power electricity generation power, and detect that the running status of oil pumping unit obtains the output actual power of oil pumping unit;And judge institute Obtain photovoltaic generation power and wind-power electricity generation power, whether the output actual power for unit of pumping is in normal condition, and is judging Comparative result when being in normal condition according to photovoltaic generation power and wind-power electricity generation power respectively with predetermined threshold value, control will The AC energy of energy conversion unit output is grid-connected, or generation and output adjust diesel generating set power output to meet currently The control parameter of workload demand.
The diesel generating set adjusts the power output of diesel-driven generator always according to the control parameter of reception, exports it Power is to meet current loads demand or be exported with minimum power, and the moment keeps operating state, it is ensured that the voltage of whole system, frequency Rate, phase it is constant.
The intelligent monitoring unit, the output for receiving and showing oil pumping unit obtained by intelligent power control unit is actual Power, photovoltaic generation power, wind-power electricity generation power, and diesel-driven generator power output, complete in real time monitoring.Preferably, institute State intelligent monitoring unit and use mobile terminal, such as mobile phone, flat board.
In system, the quantity and rated power of the diesel-driven generator of the diesel generating set depend on oil pumping unit most Big power load;The unit quantity and realtime power that diesel generating set currently puts into operation are according to the current electricity consumption of oil pumping unit Load and the current power output of wind-force, photovoltaic generating system are adjusted in real time;Diesel generating set is simultaneously for supporting The voltage of system, frequency, phase.
Further, the intelligent power control unit includes power intelligent allocation unit and and machine unit.Wherein and machine The AC energy that energy conversion unit is changed in unit major control inputs in power network and completes grid-connected;The power intelligent distribution Whether unit mainly judges the output actual power of gained photovoltaic generation power and wind-power electricity generation power, unit of pumping in normal State, and compared photovoltaic generation power and wind-power electricity generation power with predetermined threshold value respectively when judging and being in normal condition, Control the AC energy for being changed energy conversion unit to input in power network according to comparative result and complete grid-connected, and be incorporated into the power networks Whether detection photovoltaic generation power or wind-power electricity generation power meet current loads demand afterwards, are generated and exported according to testing result and used In the power output of diesel generating set to meet the control parameter of grid-connected rear current loads demand.
And, the system intelligent power control unit also includes being used for by unloader derived from electric energy, available for ought be simultaneously Detect that photovoltaic generation power or wind-power electricity generation power meet current loads demand after network operation, unnecessary AC energy is led in control Go out.
Therefore, system can carry out regulation and control distribution to wind-power electricity generation and photovoltaic generation power, to realize to generation of electricity by new energy Maximum utilization, realize that field area supply of electric power is self-sufficient under island mode by wind-solar-diesel complementary electric power system, nothing Bulk power grid need to be relied on to power.
On the basis of said system, the present invention also propose under a kind of island mode without energy storage wind-solar-diesel complementary supplier of electricity Method, as shown in Fig. 2 this method specifically includes following steps:
Step 1, initialization start electric power system, including diesel generating set start after successively start oil pumping unit, and according to work as Preload demand adjusts the power output of diesel generating set.
Photovoltaic generation and wind-power electricity generation are obtained electric energy and complete direct current to AC energy conversion, and detection institute by step 2, control The AC energy of conversion obtains photovoltaic generation power and wind-power electricity generation power.And the operation shape of the loaded oil pumping unit of detection State, obtains the output actual power of oil pumping unit.
During being somebody's turn to do, the running statuses of all oil pumping units can be detected, and the oil pumping unit to breaking down Alarmed and safeguarded;All wind power generating sets and photovoltaic array running status are detected, and to breaking down or having The blower fan of exception, photovoltaic array are alarmed and repair and maintenance.
Step 3, judge gained photovoltaic generation power and wind-power electricity generation power, pump unit output actual power whether locate In normal condition.When the output actual power of photovoltaic generation power and wind-power electricity generation power, unit of pumping is in normal condition When, photovoltaic generation power and wind-power electricity generation power are compared with predetermined threshold value respectively:When photovoltaic generation power or wind-power electricity generation work( Fully powered-on by diesel generating set when rate is less than predetermined threshold value, it is not necessary to carry out photovoltaic and wind power supply, generation and output are used In regulation diesel generating set power output to meet the control parameter of current loads demand, to adjust diesel engine unit in real time Power output, to meet current loads demand.
When photovoltaic generation power or wind-power electricity generation power are more than or equal to predetermined threshold value, control energy conversion unit institute Complete grid-connected in the AC energy input power network of conversion, insufficient section is supplemented by diesel engine unit, is realized and the grid-connected fortune of diesel engine unit OK.
After system grid connection operation is realized, whether detection photovoltaic generation power or wind-power electricity generation power meet current loads need Ask, according to testing result generation and output control parameter;Specially:
Detect that photovoltaic generation power or wind-power electricity generation power are unsatisfactory for current loads demand, lie prostrate according to photovoltaic and send out after being incorporated into the power networks Electrical power or wind-power electricity generation power and current loads demand difference, generation and output control parameter, to adjust diesel engine unit in real time Power output, the diesel generating set according to control parameter adjust diesel generating set power output, make it with reasonable Power consumption operation.
Detect that photovoltaic generation power or wind-power electricity generation power meet current loads demand after being incorporated into the power networks, then it is main by Wind, photosystem provide electric energy needed for load, and control will meet the remaining AC energy after current loads demand and pass through unloader Export so that diesel generating set is exported with minimum power.
Also, the diesel engine moment keeps operating state in said process, it is ensured that the voltage of whole system, frequency, phase It is constant.
Further, methods described can also be included to gained photovoltaic generation power, wind-power electricity generation power, unit of pumping Output actual power and the power output of diesel-driven generator are uploaded in real time, complete real-time monitoring and the fault alarm of system.
To sum up, the present invention by intelligent power control unit and machine unit access system, then to whole system voltage, Frequency, phase are controlled, and instead of batteries, and realization changes into grid-connected system from off-network type electricity generation system, can To carry out regulation and control distribution to wind-power electricity generation and photovoltaic generation power, to realize that the maximum to generation of electricity by new energy is utilized, diesel oil is reduced Consumption, realizes and reduces system cost.The field area supply of electric power under island mode is realized by wind-solar-diesel complementary electric power system It is self-sufficient, without relying on bulk power grid to power.So so loaded on a large scale under environment in oil field, substantial amounts of storage can be removed Battery pack, is realized without energy storage, so as to save system cost.The present invention set up by generation of electricity by new energy and diesel generating set simultaneously The electric power system of network operation, realizes the target saved diesel oil, improve generation of electricity by new energy utilization rate.
Embodiments of the present invention are explained in detail above in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned implementation Mode, can also be on the premise of present inventive concept not be departed from the knowledge that those of ordinary skill in the art possess Make a variety of changes.

Claims (8)

1. under a kind of island mode without energy storage wind-solar-diesel complementary electric power system, it is characterised in that including:
Photovoltaic generating system and wind generator system, are respectively used to photovoltaic generation and wind-power electricity generation obtains electric energy;
Energy conversion unit, is changed to AC energy output for obtaining electric energy to photovoltaic generation and wind-power electricity generation;
Diesel generating set, remains electric for the main power supply unit started as system load, and when system is normally run The frequency and voltage stabilization of net, and its power output is adjusted according to the control parameter of reception;
Oil pumping unit, for the load as system;
Intelligent power control unit, the AC energy for detecting energy conversion unit output obtains photovoltaic generation power and wind-force Generated output, and detect that the running status of oil pumping unit obtains the output actual power of oil pumping unit;And judge gained photovoltaic hair Whether electrical power and wind-power electricity generation power, the output actual power for unit of pumping are in normal condition, and are judging to be in just Comparative result during normal state according to photovoltaic generation power and wind-power electricity generation power respectively with predetermined threshold value, control converts energy The AC energy of unit output is grid-connected, or generation and output adjust diesel generating set power output to meet current loads demand Control parameter;
Intelligent monitoring unit, for receiving and showing the output actual power of oil pumping unit, light obtained by intelligent power control unit Lie prostrate generated output, wind-power electricity generation power, and diesel-driven generator power output.
2. according to claim 1 under island mode without energy storage wind-solar-diesel complementary electric power system, it is characterised in that:The energy Measuring conversion unit includes photovoltaic controller, wind-powered electricity generation controller, and the inversion control being connected respectively with photovoltaic controller, wind-powered electricity generation controller All-in-one processed.
3. according to claim 1 under island mode without energy storage wind-solar-diesel complementary electric power system, it is characterised in that:The intelligence Energy power control unit includes power intelligent allocation unit and and machine unit.
4. according to claim 1 under island mode without energy storage wind-solar-diesel complementary electric power system, it is characterised in that:The intelligence Energy power control unit also includes being used for unloader derived from AC energy.
5. according to claim 1 under island mode without energy storage wind-solar-diesel complementary electric power system, it is characterised in that:The intelligence Energy monitoring unit uses mobile terminal.
6. under a kind of island mode without energy storage wind-solar-diesel complementary method of supplying power to, it is characterised in that comprise the following steps:
Initialization starts electric power system, and according to the power output of current loads demand regulation diesel generating set;
Photovoltaic generation and wind-power electricity generation are obtained electric energy and changed to AC energy, and detection gained AC energy acquisition photovoltaic by control Generated output and wind-power electricity generation power;And the running status of the loaded oil pumping unit of detection, obtain the output reality of oil pumping unit Border power;
Judge gained photovoltaic generation power and wind-power electricity generation power, whether the output actual power for unit of pumping is in normal shape State, and compared photovoltaic generation power and wind-power electricity generation power with predetermined threshold value respectively when judging and being in normal condition:
When photovoltaic generation power or wind-power electricity generation power are less than predetermined threshold value, generate and export for adjusting diesel generating set Power output to meet the control parameter of current loads demand;
When photovoltaic generation power or wind-power electricity generation power are more than or equal to predetermined threshold value, control will be handed over obtained by energy conversion unit Flow electric energy grid-connected;And detect whether photovoltaic generation power or wind-power electricity generation power meet current loads demand after being incorporated into the power networks, Generated according to testing result and export the power output for diesel generating set to meet the control of grid-connected rear current loads demand Parameter processed;
The diesel generating set adjusts the power output of diesel generating set according to control parameter.
7. according to claim 6 under island mode without energy storage wind-solar-diesel complementary method of supplying power to, it is characterised in that:The side Method is generated and output control parameter after being incorporated into the power networks according to testing result, including:
When testing result is to be unsatisfactory for current loads demand, generated output or wind-power electricity generation power are lied prostrate according to photovoltaic and born with current Lotus demand difference, generation and output control parameter make it that the power output for adjusting diesel generating set meets current loads demand;
When testing result for when meeting current loads demand, generation and output make it that diesel generating set is defeated with minimum output power The control parameter gone out, and control will meet the export of the remaining AC energy after current loads demand.
8. according to claim 6 under island mode without energy storage wind-solar-diesel complementary method of supplying power to, it is characterised in that:The side Method is also included to gained photovoltaic generation power, wind-power electricity generation power, the output actual power for unit of pumping and diesel-driven generator Power output is uploaded in real time.
CN201710223636.6A 2017-04-07 2017-04-07 Under a kind of island mode without energy storage wind-solar-diesel complementary electric power system and method Pending CN106953356A (en)

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Cited By (4)

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CN109638885A (en) * 2018-12-29 2019-04-16 袁明磊 A kind of new energy power output control system
CN111585312A (en) * 2020-06-09 2020-08-25 中国人民解放军火箭军工程设计研究院 Parallel operation control method and device for power station and computer readable storage medium
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CN108599231A (en) * 2018-01-20 2018-09-28 西南石油大学 Wind-solar-diesel complementary power generation family monitoring system based on LabVIEW
CN109638885A (en) * 2018-12-29 2019-04-16 袁明磊 A kind of new energy power output control system
CN109638885B (en) * 2018-12-29 2020-08-28 河北建投新能源有限公司 New forms of energy power output control system
CN111585312A (en) * 2020-06-09 2020-08-25 中国人民解放军火箭军工程设计研究院 Parallel operation control method and device for power station and computer readable storage medium
CN113108261A (en) * 2021-03-25 2021-07-13 衢州学院 Intelligent lighting system of mobile lighting lighthouse and control method thereof

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Application publication date: 20170714