CN107317355A - A kind of pump-up power station joint wind-light complementary system and its optimization method - Google Patents

A kind of pump-up power station joint wind-light complementary system and its optimization method Download PDF

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CN107317355A
CN107317355A CN201710537648.6A CN201710537648A CN107317355A CN 107317355 A CN107317355 A CN 107317355A CN 201710537648 A CN201710537648 A CN 201710537648A CN 107317355 A CN107317355 A CN 107317355A
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China
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wind
power
system
light
water
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CN201710537648.6A
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Chinese (zh)
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梁睿
温颖
吴胜磊
彭楠
谢天
刘毅
程孟晗
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中国矿业大学
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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
    • H02J3/28Arrangements for balancing of the load in a network by storage of 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
    • H02J2203/00Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
    • 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 electric or electronic aspects
    • Y02E10/563Power conversion electric or electronic aspects for grid-connected applications
    • 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 electric or electronic aspects
    • Y02E10/566Power conversion electric or electronic aspects concerning power management inside the plant, e.g. battery charging/discharging, economical operation, hybridisation with other energy sources
    • 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
    • Y02E10/763Power conversion electric or electronic aspects for grid-connected applications
    • 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
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

Abstract

The invention discloses a kind of pump-up power station joint wind-light complementary system and its optimization method, belong to wind-solar-storage joint electricity generation system technical field.Transformed by the free space to waste and old mine, build up the hybrid power system that underground type hydroenergy storage station is combined with the wind and solar hybrid generating system of earth's surface, using operating index such as wind-light complementary system, hydroenergy storage station, electrical grid transmission power as constraints, obtain that wind light mutual complementing goes out that fluctuation is minimum, association system goes out that fluctuation is minimum and follow load optimization of profile allocation models;Finally model is solved and optimized using enhanced simulated annealing.The invention takes full advantage of the storage hair ability of underground hydroenergy storage station, and combine the complementary characteristic of honourable resource, the flexibility for making association system regulation exert oneself is higher, makes the effect of gross capability follow load curve more excellent, also makes system more preferable to the digestion capability of new energy.

Description

A kind of pump-up power station joint wind-light complementary system and its optimization method

Technical field

The invention belongs to wind-light storage hybrid power system technical field, more particularly to a kind of pump-up power station joint wind light mutual complementing System and its optimization method.

Background technology

Some older days deep underground mine because equipment is outmoded, backward in technique etc., reason is forced to withdraw from the market and the discarded spare time Put, this both wastes land resource, and easily cause the problems such as surface subsidence, soil erosion.In the existing of waste and old underground mine Wind, light, water-storage the joint system that underground type hydroenergy storage station is combined with wind and solar hybrid generating system are transformed into condition System, not only solves the problem of idle mine underground space is reused, and also saves and builds pump-up power station and dig underground again The fund in space, while also achieving the multiple targets such as new energy access, retaining, energy storage, cogeneration.

Wind-light complementary system takes full advantage of the complementarity of wind, light resource on Annual distribution, can export stably, reliably Property high electric energy, reduce the impact of Parallel Operation on Power System.But the electricity that sends of wind-light complementary system is more and is difficult storage, and take out Electrical power storage unnecessary in system can be got up by pumping for water pump process, can not only replace battery to store up by water storage station Can effect, electric energy can also be discharged, with spirit to system when system generation deficiency by the process that discharges water of the hydraulic turbine Living, reliable, environmentally friendly the advantages of.

Traditional honourable pumped storage association system is mostly as just storage in integrated system by earth's surface hydroenergy storage station Can device analyzed, exerted oneself without making full use of it flexibly to store up hair characteristic regulation, in addition more than the optimizing research of system with Cost minimization and Income Maximum are as optimization aim, the situation without contemplating force tracking dispatch curve.Therefore prior art It is central urgently to need a kind of new technical scheme to solve this problem.

The content of the invention

It is hydroenergy storage station transforming waste and old underground mine that the technical problems to be solved by the invention, which there is provided a kind of, Background under honourable pumped storage association system optimization method, for solving the idle huge spatial reuse in mine underground and tradition Association system optimizing research is only by reducing system cost and increase system benefit.

The present invention uses following technical scheme to solve above-mentioned technical problem

A kind of pump-up power station combines wind-light complementary system, including wind energy conversion system, photovoltaic array, water pump, the hydraulic turbine, inverter and Controller;

Wherein, wind energy conversion system, for converting wind energy into electric energy;

Photovoltaic array, for converting solar energy into electric energy;

Water pump, for the water of lower storage reservoir to be evacuated into upper storage reservoir, converting electric energy to water can store;

The hydraulic turbine, drives generator to rotate generation electric energy for the water of upper storage reservoir to be put to lower storage reservoir;

Inverter, the DC inverter that photovoltaic array is exported is alternating current;

Controller, adjusts wind-light complementary system output end working condition.

A kind of control method for being combined wind-light complementary system based on pump-up power station, is specifically comprised the following steps;

Step 1, collection and typing wind/light/wind speed of pumped storage association system Location, illumination load, underground draw water storage Can power station upper storage reservoir amount and user power utilization data;

Step 2, the scheduling strategy of wind/light/pumped storage association system is determined, it is specific as follows:

Wind/light/pumped storage association system all meets following formula at any time:

PM(t)=Ppv(t)+Pwg(t)+Pps(t)-Psl(t)

In formula:Pwg(t)、Ppv(t) it is respectively that complementary system t periods wind power output and photovoltaic are exerted oneself;Pps(t) it is the storage that draws water It can exert oneself, Psl(t) it is load power;PM(t) it is complementary system and power network two-way exchange power, wherein complementary power generation system is to electricity Net transmission of electricity is just, it is negative that power network is transmitted electricity to complementary power generation system;

When hydroenergy storage station, which is in, draws water working condition:

If the dump power of complementary system is more than the upper limit of the power of drawing water of hydroenergy storage stationThen now wind, light, take out Water accumulation of energy association system is powered to power network, and is to the power of electrical grid transmission:

If the dump power of complementary system is less than the upper limit of the power of drawing water of hydroenergy storage stationThen now wind, light, take out Water accumulation of energy association system does not have power transmission with power network;

When hydroenergy storage station is in power generation operation state:

If now the power difference needed for complementary system is less than the generated output lower limit of hydroenergy storage stationThen now Power network aweather, light, pumped storage system power, and from electrical grid transmission come power be:

If now the power difference needed for complementary system is more than the generated output lower limit of hydroenergy storage stationThen now Wind, light, pumped storage system and power network do not have power transmission;

Step 3, the optimal operation model of wind/light/pumped storage association system is set up;

Step 4, the optimal operation model of wind/light/pumped storage association system is solved using modified-immune algorithm.

As a kind of further preferred scheme for the control method for combining wind-light complementary system based on pump-up power station of the present invention, In step 3, the optimal operation model of the wind/light/pumped storage association system includes optimization object function and optimization constraints.

As a kind of further preferred scheme for the control method for combining wind-light complementary system based on pump-up power station of the present invention, The optimization object function is specifically included:

The minimum object function of fluctuation is gone out with wind-light complementary system:

In formula:Min ξ, Phb(ti)、Phb(ti-1) it is wind, light complementary system respectively in tiMoment and ti-1Moment exerts oneself Value;

Minimum object function is fluctuated with the gross capability of wind/light/pumped storage association system:

Wherein, Ptotal(t)=Pwg(t)+Ppv(t)+Pps(t)

In formula:Ptotal(t)、PpjBe wind, light, water-storage association system the t periods gross capability and gross capability it is flat Average;

Follow load dispatch curve:

In formula:Psl(t) it is load dispatch curve total electricity;

As a kind of further preferred scheme for the control method for combining wind-light complementary system based on pump-up power station of the present invention,

The optimization constraints includes:

Wind power output is constrained:

In formula:Respectively blower fan power output minimum value and maximum;

Photovoltaic units limits:

In formula:Respectively photovoltaic array power output minimum value and maximum;

Reservoir capacity is constrained:

In formula:Wps(t) it is t period pumped storage upper storage reservoir capacity;Ppu(t) it is specified for drawing water for t period water-storages station Exert oneself;Pge(t) it is the generating nominal output at t period water-storages station, δ1And δ2Draw water efficiency and generating efficiency are represented respectively;For the Peak sink of reservoir;

Draw water, generated output is constrained:

In formula:For draw water state when exert oneself minimum value and maximum;Go out during for generating state Power minimum value and maximum;S1,t、S2,tRespectively draw water state parameter variable during with generator operation at water-storage station;

Electrical grid transmission is constrained:

In formula,The respectively minimum value and maximum of power network alternating transmission power;

Wind light mutual complementing is constrained:

In formula:NwpFor Wind turbines quantity, NseFor photovoltaic module quantity, Pwc(t)、Psc(t) be respectively wind turbine power generation dress The installed capacity of machine capacity and photovoltaic generation, kminAnd kmaxThe minimum value and maximum of respectively honourable unit capacity ratio;

Wind light mutual complementing is exerted oneself and association system is exerted oneself stability bandwidth, trace scheduling curve constraint:

ξ≤ξmax

γ≤γmax

τ≤τmax

In formula:ξmaxExerted oneself stability bandwidth maximum, γ for wind-light complementary systemmaxGo out fluctuation for honourable pumped storage association system Rate maximum, τmaxFor follow load dispatch curve qualified rates of fitting maximum.

The present invention uses above technical scheme compared with prior art, with following technique effect:

The present invention is that the honourable pumped storage association system of structure is transformed under waste and old mine basic condition, both improves space Recycling rate of waterused, also takes full advantage of the complementary characteristic of honourable resource, while also by means of hydroenergy storage station water pump and water wheels The different working condition of machine, when scene exerts oneself abundance by unnecessary electric energy be converted into water can store serve as energy storage device make With, and discharge water in honourable undercapacity to generate electricity and serve as the effect of stand-by power supply, than traditional wind-solar-storage joint system in regulation Aspect of exerting oneself is more flexible, to traditional mould in follow load curve and effect of optimization in terms of reducing out fluctuation more preferably Intend the optimization in terms of annealing algorithm is improved and calculate more efficient.

Brief description of the drawings

Fig. 1 is the structure chart of wind/light/water-storage association system;

Fig. 2 is the schematic diagram of wind/light/water-storage association system;

Fig. 3 is that wind/light/water-storage is exerted oneself and load curve;

Fig. 4 is that wind light mutual complementing is exerted oneself and load curve;

Fig. 5 is that honourable pumped storage association system is exerted oneself and load curve.

Embodiment

Technical scheme is described in further detail below in conjunction with the accompanying drawings:

As shown in figure 1, a kind of combine wind-light complementary system running optimizatin method based on the pump-up power station that waste and old mine is transformed The honourable water-storage association system of application, it is characterised in that including wind energy conversion system, photovoltaic array, water pump, the hydraulic turbine, inverter And controller.Wind generator system converts wind energy into electric energy, exports alternating current;Photovoltaic generating system converts solar energy into electricity Can, export direct current;The water of lower storage reservoir is evacuated to upper storage reservoir storage electric energy by water pump;The hydraulic turbine puts the water of upper storage reservoir to lower storage reservoir Discharge electric energy;Inverter is the converting direct-current power into alternating-current power for sending photovoltaic generating system;Controller is according to wind speed sunshine Change and then the working condition of output end is adjusted, to ensure system stable operation.

As shown in Fig. 2 a kind of pump-up power station joint wind-light complementary system, including wind energy conversion system, photovoltaic array, water pump, water wheels Machine, inverter and controller;

Wherein, wind energy conversion system, for converting wind energy into electric energy;

Photovoltaic array, for converting solar energy into electric energy;

Water pump, for the water of lower storage reservoir to be evacuated into upper storage reservoir, converting electric energy to water can store;

The hydraulic turbine, drives generator to rotate generation electric energy for the water of upper storage reservoir to be put to lower storage reservoir;

Inverter, the DC inverter that photovoltaic array is exported is alternating current;

Controller, adjusts wind-light complementary system output end working condition.

As shown in figure 3, a kind of combine wind-light complementary system running optimizatin method based on the pump-up power station that waste and old mine is transformed, It is characterized in that comprising the following steps, and sequentially carried out with following steps,

Step 1: the wind speed of 24 hours one day of collection and typing wind/light/pumped storage association system Location, illumination are born Lotus, underground hydroenergy storage station upper storage reservoir amount and load data information;

Step 2: honourable pumped storage association system scheduling strategy is established,

Wind/light/water-storage association system is divided into independent operating and the two kinds of running statuses that are incorporated into the power networks, but association system In independent operating, due to water and the limitation of installed capacity, system fading margin ability and effect be not very good, so herein Only consider grid-connected situation.Association system is when being incorporated into the power networks, and power network participates in system call, controller as load and stand-by power supply Each unit interval detection wind, light are exerted oneself, and the working condition of flexible modulation water-storage and are exerted oneself, follow load curve.Joint System all meets following formula at any time:

PM(t)=Ppv(t)+Pwg(t)+Pps(t)-Psl(t)(1)

In formula:Pwg(t)、Ppv(t) it is respectively that complementary system t periods wind power output and photovoltaic are exerted oneself;Pps(t) it is the storage that draws water It can exert oneself, wherein generating state is just, the state of drawing water is negative;Psl(t) it is load power;PM(t) it is double with power network for complementary system To power is exchanged, wherein complementary power generation system is that just, it is negative that power network is transmitted electricity to complementary power generation system to grid power transmission.

I, hydroenergy storage station are in working condition of drawing water;

If 1. the dump power of complementary system is more than the upper limit of the power of drawing water of hydroenergy storage stationThen now wind, light, Water-storage association system is powered to power network, and is to the power of electrical grid transmission:

If 2. the dump power of complementary system is less than the upper limit of the power of drawing water of hydroenergy storage stationThen now wind, light, Water-storage association system does not have power transmission with power network.

II, hydroenergy storage station are in power generation operation state;

If 1. power difference now needed for complementary system is less than the generated output lower limit of hydroenergy storage stationThen this When power network aweather, light, pumped storage system power, and from electrical grid transmission come power be:

If 2. power difference now needed for complementary system is more than the generated output lower limit of hydroenergy storage stationThen this Shi Feng, light, pumped storage system and power network do not have power transmission.

Step 3: honourable pumped storage association system optimal operation model is set up,

Honourable pumped storage association system optimal operation model includes optimization object function and optimization constraints,

I, optimization object function include:

1. smooth wind-light complementary system power output:

In formula:Phb(ti)、Phb(ti-1) it is wind, light complementary system respectively in tiMoment and ti-1The power generating value at moment;Should Wind-light complementary system adjacent time goes out fluctuation size cases in goals research one day 24 hours.

2. the fluctuation of association system gross capability is minimum:

Ptotal(t)=Pwg(t)+Ppv(t)+Pps(t) (6)

In formula:Ptotal(t)、Ppj(t) be wind, light, water-storage association system the t periods gross capability and gross capability Average value;Goal description joint power output average variance size cases, numerical value is smaller, fluctuates smaller.

3. follow load dispatch curve:

In formula:Psl(t) it is load dispatch curve total electricity;The goal description is load dispatch curve total electricity with combining System exerts oneself ratio closer to numerical value 1, then gross capability is fitted better with load curve.

II, the constraints of Optimized model include:

1. wind power output is constrained:

In formula:Respectively blower fan power output minimum value and maximum.

2. photovoltaic units limits:

In formula:Respectively photovoltaic array power output minimum value and maximum.

3. wind light mutual complementing is constrained:

In formula:NwpFor Wind turbines quantity, NseFor photovoltaic module quantity, Pwc(t)、Psc(t) be respectively wind turbine power generation dress The installed capacity of machine capacity and photovoltaic generation, kminAnd kmaxThe minimum value and maximum of respectively honourable unit capacity ratio.

4. hydroenergy storage station is constrained:

(1) storage capacity energy balance relations formula:

In formula:Wps(t) it is t period pumped storage upper storage reservoir capacity;Ppu(t) it is specified for drawing water for t period water-storages station Exert oneself;Pge(t) it is the generating nominal output at t period water-storages station.δ1And δ2Draw water efficiency and generating efficiency are represented respectively.

(2) reservoir capacity is constrained:

In formula:For the Peak sink of reservoir.

5. draw water, generated output is constrained:

In formula:For draw water state when exert oneself minimum value and maximum;Go out during for generating state Power minimum value and maximum;S1,t、S2,tRespectively draw water state parameter variable during with generator operation at water-storage station.

6. electrical grid transmission is constrained:

In formula,The respectively minimum value and maximum of power network alternating transmission power.

7. association system smoothly exert oneself, trace scheduling curve constraint:

ξ≤ξmax (17)

γ≤γmax (18)

τ≤τmax (19)

In formula:ξmaxExerted oneself stability bandwidth maximum, γ for wind-light complementary systemmaxGo out fluctuation for honourable pumped storage association system Rate maximum, τmaxFor follow load dispatch curve qualified rates of fitting maximum.

Step 4: using modified-immune algorithm solving-optimizing allocation models, comprising the following steps that:

Step 4.1, initialization particle and algorithm parameter:Make population N=30, Studying factors k=1.5;Inertia weight Y= 0.8~0.3, iterations maximum Max=500;Initial temperature T0=105K;

Step 4.2, prediction user scheduling electricity, calculates the generated energy of wind generator system and photovoltaic generating system;

Step 4.3, optimization object function model and optimization constraints model are set up;

Step 4.4, new particle is checked, and calculates the adaptive value of new particle correspondence object function;

Step 4.5, a new particle position is randomly generated, new particle position and the fitness increment of old particle position is calculated Z;It is specific as follows:

Z=Fk+1-Fk

In formula, Fk+1And FkThe fitness value of new particle and old particle is represented respectively;

Step 4.6, if Z<0, then particle enters new particle position, and warm operation is moved back in execution;If Z>0, then generate [0,1) between Random number rand, and rand<Exp (- Δ/T (t)), particle enters new particle position, and warm operation is moved back in execution, if rand> Exp (- Δ/T (t)), then perform step 4.4;

Wherein,

T is the flight time;T is temperature renewal function;

Step 4.7, processing optimization constraints, and optimal according to the global optimum and individual of result more new particle, Mark history optimal;

Step 4.8, the speed of more new particle and position, specific as follows:

In formula:WithThe optimal solution of kth time iteration particle itself and the optimal solution of particle cluster are represented respectively;

Step 4.9, judge whether to reach maximum iteration, if meeting, termination process and output optimal solution;If discontented Sufficient, then flow goes to step 4.2, continues optimizing.

Step 5: the data input that step one is obtained is among HOMER simulation softwares, and runs the software and obtain respectively Obtain wind, light, water-storage, wind light mutual complementing and the power output of honourable pumped storage combination.

In order to further illustrate the accuracy and feasibility of the present invention, divided by taking the construction project of NORTHWEST CHINA somewhere as an example Analysis, the project includes installed capacity 150MW wind power station, 50MW photo-voltaic power generation station and 40MW hydroenergy storage station structure Simulation study is carried out into association system, load is according to the ground daily load curve scaled down, and dispatching cycle is one day, divides 24 Period.Ground typical case's day wind speed, light radiation data detail parameters are as shown in table 1.Table 2 is underground hydroenergy storage station upper storage reservoir Capacity and load data

Table 1

Table 2

By the data input HOMER simulation softwares in table 1, table 2, respectively obtain wind, light, water-storage, wind light mutual complementing and The power output of honourable pumped storage combination, will be contrasted with load, be obtained respectively from power combination obtained by HOMER simulation softwares Fig. 3,4,5.From Fig. 3 it can be seen that, Wind turbine whole day generates electricity in one day, and noon exerts oneself minimum, and output-power fluctuation is very big;Photovoltaic Array is only in the morning 6:30 afternoons 19:40 generate electricity, and noon exerts oneself maximum, and output-power fluctuation is smaller;The two is on Annual distribution Possess larger complementary characteristic.From Fig. 4 it can be seen that, the peak-valley difference that wind light mutual complementing is exerted oneself is than peak-valley difference that wind, light are individually exerted oneself Small, but the complementary fluctuation exerted oneself is still very big, this can cause larger impact when grid-connected to power network;In addition, scene is mutually Mend power curve and be unable to follow load curve, many periods can not meet the demand of load.When wind light mutual complementing exerts oneself larger, take out Water storage station is operated in state of drawing water and carries out energy storage, if also residue is exerted oneself, and association system is to electrical grid transmission power.In wind When light exerts oneself smaller, hydroenergy storage station is operated in the state of discharging water and generated electricity, and meets demand if still can not meet, power network To association system transimission power.From Fig. 5 it can be seen that, it is smaller that wind, light, water-storage association system go out fluctuation, reduces wind, light The impact that Parallel Operation on Power System is caused, and association system power curve trend moves towards basically identical with load curve, and tracking is negative Lotus J curve effectJ is preferable.

Claims (5)

1. a kind of pump-up power station combines wind-light complementary system, it is characterised in that:Including wind energy conversion system, photovoltaic array, water pump, water wheels Machine, inverter and controller;
Wherein, wind energy conversion system, for converting wind energy into electric energy;
Photovoltaic array, for converting solar energy into electric energy;
Water pump, for the water of lower storage reservoir to be evacuated into upper storage reservoir, converting electric energy to water can store;
The hydraulic turbine, drives generator to rotate generation electric energy for the water of upper storage reservoir to be put to lower storage reservoir;
Inverter, the DC inverter that photovoltaic array is exported is alternating current;
Controller, adjusts wind-light complementary system output end working condition.
2. a kind of control method for combining wind-light complementary system based on pump-up power station, it is characterised in that:Specifically comprise the following steps;
Step 1, the wind speed of collection and typing wind/light/pumped storage association system Location, illumination load, underground water-storage electricity Upper storage reservoir amount of standing and user power utilization data;
Step 2, the scheduling strategy of wind/light/pumped storage association system is determined, it is specific as follows:
Wind/light/pumped storage association system all meets following formula at any time:
PM(t)=Ppv(t)+Pwg(t)+Pps(t)-Psl(t)
In formula:Pwg(t)、Ppv(t) it is respectively that complementary system t periods wind power output and photovoltaic are exerted oneself;Pps(t) go out for water-storage Power, Psl(t) it is load power;PM(t) it is complementary system and power network two-way exchange power, wherein complementary power generation system is defeated to power network Electricity is just, it is negative that power network is transmitted electricity to complementary power generation system;
When hydroenergy storage station, which is in, draws water working condition:
If the dump power of complementary system is more than the upper limit of the power of drawing water of hydroenergy storage stationThen now wind, light, draw water storage Energy association system is powered to power network, and is to the power of electrical grid transmission:
If the dump power of complementary system is less than the upper limit of the power of drawing water of hydroenergy storage stationThen now wind, light, draw water storage Energy association system does not have power transmission with power network;
When hydroenergy storage station is in power generation operation state:
If now the power difference needed for complementary system is less than the generated output lower limit of hydroenergy storage stationThen now power network Aweather, light, pumped storage system are powered, and the power come from electrical grid transmission is:
If now the power difference needed for complementary system is more than the generated output lower limit of hydroenergy storage stationThen now wind, Light, pumped storage system and power network do not have power transmission;
Step 3, the optimal operation model of wind/light/pumped storage association system is set up;
Step 4, the optimal operation model of wind/light/pumped storage association system is solved using modified-immune algorithm.
3. a kind of control method for being combined wind-light complementary system based on pump-up power station according to claim 1, its feature is existed In:In step 3, the optimal operation model of the wind/light/pumped storage association system includes optimization object function and optimization constraint bar Part.
4. a kind of control method for being combined wind-light complementary system based on pump-up power station according to claim 3, its feature is existed In:The optimization object function is specifically included:
The minimum object function of fluctuation is gone out with wind-light complementary system:
In formula:Min ξ, Phb(ti)、Phb(ti-1) it is wind, light complementary system respectively in tiMoment and ti-1The power generating value at moment;
Minimum object function is fluctuated with the gross capability of wind/light/pumped storage association system:
Wherein, Ptotal(t)=Pwg(t)+Ppv(t)+Pps(t)
In formula:Ptotal(t)、PpjIt is wind, light, water-storage association system in the gross capability of t periods and the average value of gross capability;
Follow load dispatch curve:
In formula:Psl(t) it is load dispatch curve total electricity.
5. a kind of control method for being combined wind-light complementary system based on pump-up power station according to claim 3, its feature is existed In:The optimization constraints includes:
Wind power output is constrained:
In formula:Respectively blower fan power output minimum value and maximum;
Photovoltaic units limits:
In formula:Respectively photovoltaic array power output minimum value and maximum;
Reservoir capacity is constrained:
In formula:Wps(t) it is t period pumped storage upper storage reservoir capacity;Ppu(t) it is the nominal output of drawing water at t period water-storages station; Pge(t) it is the generating nominal output at t period water-storages station, δ1And δ2Draw water efficiency and generating efficiency are represented respectively;For The Peak sink of reservoir;
Draw water, generated output is constrained:
In formula:For draw water state when exert oneself minimum value and maximum;Exerted oneself most during for generating state Small value and maximum;S1,t、S2,tRespectively draw water state parameter variable during with generator operation at water-storage station;
Electrical grid transmission is constrained:
In formula,The respectively minimum value and maximum of power network alternating transmission power;
Wind light mutual complementing is constrained:
In formula:NwpFor Wind turbines quantity, NseFor photovoltaic module quantity, Pwc(t)、Psc(t) be respectively wind turbine power generation installation hold The installed capacity of amount and photovoltaic generation, kminAnd kmaxThe minimum value and maximum of respectively honourable unit capacity ratio;
Wind light mutual complementing is exerted oneself and association system is exerted oneself stability bandwidth, trace scheduling curve constraint:
ξ≤ξmax
γ≤γmax
τ≤τmax
In formula:ξmaxExerted oneself stability bandwidth maximum, γ for wind-light complementary systemmaxStability bandwidth is exerted oneself for honourable pumped storage association system most Big value, τmaxFor follow load dispatch curve qualified rates of fitting maximum.
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CN109787272A (en) * 2017-11-13 2019-05-21 北京亨得森电力咨询有限公司 The method that Calculation Estimation dissolves new energy more under " new energy+pumped storage " combined operation approach
CN108599238A (en) * 2018-04-26 2018-09-28 国家电网公司 Consider the virtual plant distributed generation resource planing method of wind energy and solar energy complementation
CN108716447A (en) * 2018-05-04 2018-10-30 中国神华能源股份有限公司 Power-generation energy-storage peak regulation system and method
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CN109518665A (en) * 2018-10-30 2019-03-26 中国矿业大学(北京) A kind of semi-underground hydroenergy storage station and forming method thereof based on outdoor pit
WO2020087881A1 (en) * 2018-10-30 2020-05-07 中国矿业大学(北京) Subsidence-area-based semi-underground pumped storage power station and forming method therefor
WO2020087882A1 (en) * 2018-10-30 2020-05-07 中国矿业大学 (北京) Full-underground pumped-storage power plant and formation method therefor
CN109356769A (en) * 2018-11-30 2019-02-19 昆明理工大学 A kind of system and electricity-generating method carrying out pumped-storage power generation using underground goaf, chamber
CN109728591A (en) * 2019-02-02 2019-05-07 北京水沃新华科技有限公司 Water transfer energy-accumulating power station

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