CN106558884B - Regional Energy Internet control system active power balance optimizes complementary adjusting method - Google Patents
Regional Energy Internet control system active power balance optimizes complementary adjusting method Download PDFInfo
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- CN106558884B CN106558884B CN201710042094.2A CN201710042094A CN106558884B CN 106558884 B CN106558884 B CN 106558884B CN 201710042094 A CN201710042094 A CN 201710042094A CN 106558884 B CN106558884 B CN 106558884B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000000295 complement effect Effects 0.000 title claims abstract description 20
- 238000005520 cutting process Methods 0.000 claims abstract description 18
- 238000004146 energy storage Methods 0.000 claims abstract description 16
- 238000003860 storage Methods 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 13
- 238000010248 power generation Methods 0.000 description 13
- 238000001514 detection method Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
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Classifications
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
Abstract
The present invention relates to the active power controller field of the intelligent bodies that may participate in power dispatching a variety of in Regional Energy internet, i.e., a kind of Regional Energy Internet control system active power balance optimizes complementary adjusting method.This method comprises: increasing the generated output of the regional power grid when active power is in balance in Regional Energy Internet control system;Increase the electric power of the regional power grid: if having do not put into can cutting load, can cutting load investment;If without do not put into can cutting load, increase the electric power of two-way controllable energy storage website;If the electric power of two-way controllable energy storage website can not increase, increase the electric power of transferable load.The problem of cannot making full use of this method solve resource, the adaptibility to response to unbalance condition is improved, and improves the stability of system.
Description
Technical field
The present invention relates to a kind of active power controller plans of Regional Energy Internet control system in Regional Energy internet
Slightly and the power distribution network automatic control technology field more particularly to Regional Energy Internet control system of meter and user side power generation have
Function power-balance optimizes complementary adjusting method.
Background technique
With distribution network load side control technology gradually research go deep into, with electric energy be support, comprehensively utilize it is hot and cold, electric,
The Regional Energy Internet control system of a variety of distributed energies such as hot water is a kind of completely new regional distribution network organizational form, it
The i.e. hair of the dynamic role and user side power generation that make full use of load side improves the electricity consumption economy of load side i.e. with characteristic.
(balance refers to total active power shortage in regional power grid when in the prior art, for there is balancing the load situation
I.e. the active power of regional power grid is in balance within the scope of the difference nargin of setting, and total active power shortage is region
The difference of the planned supply and use of electric power of the burden with power total amount and regional power grid of power grid), usually will not further it take measures.In equilibrium state
Under, if will cause the utilization of resources without further step and be not enough, issuable unbalance condition is lacked and is coped with,
It is not good for system stability.
Summary of the invention
The object of the present invention is to provide a kind of Regional Energy Internet control system active power balances to optimize complementary adjust
Method improves the adaptibility to response to unbalance condition for solving the problems, such as that resource cannot make full use of, and lifting system
Stability establishes reasonable energy distribution and Energy Saving Strategy, improves the economy of user side power generation, ensures continuing controllably for the energy
Supply.
To achieve the above object, a kind of Regional Energy Internet control system active power balance of the invention optimizes complementary
Adjusting method includes:
When active power is in balance in Regional Energy Internet control system, steps are as follows:
1) increase the generated output of the regional power grid;
2) increase the electric power of the regional power grid: if having do not put into can cutting load, can cutting load investment;If not yet
Have do not put into can cutting load, then increase the electric power of the regional power grid flexibility charge, make the increased electric power with
The increased generated output balance.
Optimize the one of complementary adjusting method as above-mentioned zone energy Internet control system active power balance of the present invention
Kind is improved, and in the generated output step for increasing the regional power grid described in this method, increases user side generated output, if user side
Generated output can not increase, then put into the alternative energy source of the regional power grid or increase the hair of the alternative energy source of the regional power grid
Electrical power.
Optimize the another of complementary adjusting method as above-mentioned zone energy Internet control system active power balance of the present invention
A kind of improvement reduces the use for increasing the regional power grid flexibility charge in the electric power step of the regional power grid described in this method
Electrical power includes: the electric power for increasing two-way controllable energy storage website, if the electric power of two-way controllable energy storage website can not
Increase, then increases the electric power of transferable load.
As above-mentioned zone energy Internet control system active power balance of the present invention optimize complementary adjusting method into
One step improve, described in this method can cutting load investment when, accordingly modify and update the ordered electric plan of the regional power grid.
Optimize the another of complementary adjusting method as above-mentioned zone energy Internet control system active power balance of the present invention
A kind of further improvement puts into the alternative energy source of the regional power grid or increases the substitution energy of the regional power grid described in this method
When the generated output in source, corresponding modification updates the ordered electric plan of the regional power grid.
Optimize complementary adjusting method more as above-mentioned zone energy Internet control system active power balance of the present invention
It is further improved, when increasing the electric power of transferable load described in this method, accordingly modifies and update the regional power grid
Ordered electric plan.
The present invention is in the case that active power is in balance in the Regional Energy Internet control system, i.e. regional power grid
In the case that electricity consumption situation meets requirements of plan, using the generated output for increasing the regional power grid, if the power generation of the regional power grid
Power can increase, then further consider increase the regional power grid electric power: if having do not put into can cutting load, can
Cutting load investment;If without do not put into can cutting load, increase the electric power of the regional power grid flexibility charge.This adjusting
Sequence is renewable energy and the various other energy made full use of in the region, preferentially to restore the load electricity consumption in region,
Using the response characteristic of the different flexible loads with electrical characteristics, increases the electric power of flexible load, improve flexible load
Reasonability and speed of decision are controlled, the adaptibility to response to unbalance condition is improved, establishes reasonable energy distribution and energy saving plan
Slightly, regional power grid is made to be in the operating status of strong green.
It is preferential to increase user side generated output in the step of increasing the generated output of the regional power grid, if user side is sent out
Electrical power can not increase, then put into the alternative energy source of the regional power grid or increase the power generation of the alternative energy source of the regional power grid
Power.This adjusting sequence can maximize the power generation of the user side in regional power grid, provide the economy of electricity consumption, and can fill
Divide and utilizes renewable energy and various other energy.
In the step of increasing the electric power of the regional power grid flexibility charge, preferentially increase two-way controllable energy storage website
Electric power increases the removable load of the regional power grid if the electric power of two-way controllable energy storage website can not increase
Electric power.This adjusting sequence makes full use of the flexible loads such as two-way controllable charging equipment, transferable load, improves region
The stability of power grid and strong degree realize the high power quality and high stability of user in regional power grid.
Detailed description of the invention
Fig. 1 is that Regional Energy Internet control system active power balance optimizes complementary adjusting method flow chart.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawing.
PcurIndicate the burden with power total amount of current region power grid, PplanIndicate the planned supply and use of electric power of current region power grid, Δ
PvacancyIndicate total active power shortage in current region power grid, then
ΔPvacancy=Pcur-Pplan
Electric power difference nargin in regional power grid is indicated by ε.When | Δ Pvacancy| when-ε < 0, the use of regional power grid
Electric situation meets requirements of plan, i.e. the active power of regional power grid is in balance, then system is mutual using Regional Energy of the invention
Control system of online active power balance optimizes complementary adjusting method.
As shown in Figure 1, system executes the optimization of active power balance when system running on active power balance the case where
Complementary adjusting method, this method make full use of renewable energy and various other energy in region, negative in the region Lai Huifu
Lotus electricity consumption increases the capacity deposit of energy storage device, arranges transferable load to charge, is a set of perfect recovery system, makes region
Power grid is in the operating status of strong green, control the following steps are included:
Step1: the user side power generation in detection zone power grid can increase power Δ Prenew,
ΔPrenew=Prenew.max-Prenew.cur
In formula, Prenew.curIndicate the current power output of user side power generation, Prenew.maxIt indicates to predict resulting user side power generation
Current maximum can contribute.
If Δ Prenew≤ 0, then user side power generation has reached maximum, unadjustable, is transferred to step2.If Δ Prenew> 0, then
It needs to comprehensively consider self power generation economy, if economic index is still qualified after increasing user side power generation, is transferred to step3.
Step2: whether the alternative energy source in detection zone power grid can undertake more loads, such as earth source heat pump, ice storage
Air-conditioning etc., alternative energy conversion is electric energy Δ Psubsitution,
ΔPsubsitution=Psubsitution.max-Psubsitution.cur
In formula, Psubsitution.curThe user power utilization conversion for indicating other current energy resource supplies is the power of electric energy,
Psubsitution.maxIndicate the available maximum electric power of various energy resources in regional power grid.
If Δ Psubsitution≤ 0, then it cannot be substituted by electric energy and reduce electric power, be transferred to step6.If Δ
Psubsitution> 0 can then substitute the various energy resources in comprehensive utilization region by electric energy, undertake more electric powers, and
It arranges alternative energy source to restore in load valley, such as ice storage air-conditioning ice making, and updates ordered electric plan, be transferred to step3.
Step3: whether have in detection zone power grid can cutting load do not put into,
ΔPcut=Pcutmax-Pcutcur
In formula, PcutmaxIndicate regional power grid in it is total can cutting load electric power, PcutcurIndicate just cutting in electricity consumption
Load power.ΔPcutThe load power that can as put into.
If Δ Pcut≤ 0, i.e., it is inoperable currently without the load that can be put into regional power grid, it is transferred to step4.If Δ
Pcut> 0, i.e. presence can throw load, then step by step input load, update ordered electric plan after investment, are transferred to step6.
Step4: two-way controllable energy storage website (such as electric car electric charging station) in detection zone power grid it is charged
State is transferred to step5 if state-of-charge meets stand-by requirement.If state-of-charge is unsatisfactory for stand-by requirement, i.e.,
SOCcur< SOCmin,
In formula, SOCcurIndicate the state-of-charge of energy storage device in current region power grid, SOCminIndicate energy storage remaining capacity
Lower limit.
When state-of-charge is unsatisfactory for stand-by requirement, then increase the spare capacity that energy storage is improved in the number of batteries filled,
The maximum charge duration t to charge in two-way controllable energy-accumulating power station with current power is calculated laterin, battery is arranged to stop charging
Time updates ordered electric plan, is transferred to step6 after adjusting.
Step5: the transferable load power Δ P in detection zone power gridtransWhether can increase,
ΔPtrans=Ptrans.max-Ptrans.cur
In formula, Ptrans.maxIndicate total transferable load electric power in regional power grid, PcutcurIt indicates just in electricity consumption
Transferable load electric power.ΔPtransThe load power that can as put into.
If Δ Ptrans≤ 0, i.e., it is inoperable currently without the load that can be put into regional power grid.If Δ Ptrans> 0, i.e.,
In the presence of the transferable load not put into, then step by step input load, increases transferable load electricity consumption, and update ordered electric plan.
Step6 is transferred to after execution.
Step6: delay waits, and after the time span for reaching timer, returns to step1.
Step Step1 and Step2 belong to the generated output for increasing the regional power grid in above-described embodiment, and step Step3 is
Increase can cutting load electric power, Step4 and Step5 belong to the electric power for increasing the regional power grid flexible load, this
The adjusting sequence of sample is conducive to make full use of renewable energy and various other energy in the region, preferentially restores in region
Load electricity consumption, promoted user experience, while using the different flexible loads with electrical characteristics response characteristic, increase flexible load
Electric power, increase the capacity deposit of energy storage device, transferable load arranged to charge, raising system answers unbalance condition
To ability, a set of perfect recovery system is formed, regional power grid is made to be in the operating status of strong green.
During increasing the generated output in the region, step Step1 is the generated output for increasing user side, Step2
It is the generated output for putting into the alternative energy source of the regional power grid or increasing the alternative energy source of the regional power grid, pays the utmost attention to increase
The generated output of user side, if the generated output that not can increase user side consider further that put into the regional power grid alternative energy source or
Increase the generated output of the alternative energy source of the regional power grid, such sequence can reduce the change of electricity consumption plan as far as possible, maximum
Change regional power grid in user side power generation, the economy of electricity consumption is provided, and can make full use of renewable energy and it is a variety of its
His energy.
During increasing the electric power of flexible load of the regional power grid, step Step4 is that increase is two-way controllable
Energy storage website electric power, Step5 is the electric power for increasing transferable load, considers to increase two-way controllable storage first
Can website electric power, followed by consider the electric power for increasing transferable load, such sequence reasonable consideration clock synchronization
Between influence the electricity consumption situation of insensitive transferable load, comprehensively consider arrangement of the two-way controllable energy storage website to electricity consumption plan
And the transferable load (such as the loads such as washing machine) that user experience is closely related can timely be arranged to respond, and be increased
The capacity deposit of energy storage device arranges transferable load to charge, while reducing the impact for changing process for system as much as possible, solution
The stability problem of system in adjustment process of having determined.Therefore, this adjusting sequence can make full use of two-way controllable charging and set
The flexible loads such as standby, transferable load make regional power grid be in the operating status of strong green, improve the stabilization of the regional power grid
Property and strong degree, realize regional power grid in user high power quality and high stability.
Specific embodiment of the present invention is presented above, but the present invention is not limited to described embodiment.
Under the thinking that the present invention provides, to the skill in above-described embodiment by the way of being readily apparent that those skilled in the art
Art means are converted, are replaced, are modified, and play the role of with the present invention in relevant art means it is essentially identical, realize
Goal of the invention it is also essentially identical, the technical solution formed in this way is to be finely adjusted to be formed to above-described embodiment, this technology
Scheme is still fallen in protection scope of the present invention.
Claims (6)
1. a kind of Regional Energy Internet control system active power balance optimizes complementary adjusting method, which is characterized in that in area
When active power is in balance in the energy Internet control system of domain, steps are as follows:
1) increase the generated output of the regional power grid;
2) increase the electric power of the regional power grid: if having do not put into can cutting load, can cutting load investment;If without not
Investment can cutting load, then increase the electric power of the regional power grid flexibility charge, make the increased electric power with it is described
Increased generated output balance.
2. Regional Energy Internet control system active power balance according to claim 1 optimizes complementary adjusting method,
It is characterized in that, increasing user side generated output in the step 1) and being put into if user side generated output can not increase
The alternative energy source of the regional power grid or increase the regional power grid alternative energy source generated output.
3. Regional Energy Internet control system active power balance according to claim 1 or 2 optimizes complementary adjusting side
Method, which is characterized in that the electric power for increasing the regional power grid flexibility charge in the step 2) includes: to increase two-way controllable storage
The electric power of energy website increases the use of transferable load if the electric power of two-way controllable energy storage website can not increase
Electrical power.
4. Regional Energy Internet control system active power balance according to claim 1 optimizes complementary adjusting method,
It is characterized in that, it is described can cutting load investment when, accordingly modify and update the ordered electric plan of the regional power grid.
5. Regional Energy Internet control system active power balance according to claim 2 optimizes complementary adjusting method,
It is characterized in that, the generated output of the alternative energy source for putting into the regional power grid or the alternative energy source for increasing the regional power grid
When, corresponding modification updates the ordered electric plan of the regional power grid.
6. Regional Energy Internet control system active power balance according to claim 3 optimizes complementary adjusting method,
It is characterized in that, accordingly modifying and updating the ordered electric of the regional power grid when electric power for increasing transferable load
Plan.
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CN104682533A (en) * | 2013-11-29 | 2015-06-03 | 华北电力大学(保定) | Double-bus direct current ultra-micro grid system suitable for sustainable building |
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CN104682533A (en) * | 2013-11-29 | 2015-06-03 | 华北电力大学(保定) | Double-bus direct current ultra-micro grid system suitable for sustainable building |
CN104807204A (en) * | 2014-12-31 | 2015-07-29 | 深圳市爱能森科技有限公司 | Wind power, photovoltaic, photo-thermal and medium heat storage combined energy supply system |
CN106026191A (en) * | 2016-05-20 | 2016-10-12 | 甘肃省电力公司风电技术中心 | Power generation right replacement electric quantity evaluation method applicable to photovoltaic power station and capable of realizing minimization of solar energy power generation abandonment |
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