CN108964096B - Energy storage configuration method, system and device for consuming electric energy abandoned by new energy - Google Patents
Energy storage configuration method, system and device for consuming electric energy abandoned by new energy Download PDFInfo
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Abstract
The application discloses an energy storage configuration method, a system, a device and a computer readable storage medium for consuming new energy power curtailment, comprising: obtaining annual new energy abandoned electric power by utilizing the calculated outgoing power of the outgoing channel and the transmission power of the main transformer; generating current initial energy storage capacity and current initial PCS power by utilizing annual new energy abandoned electric power; establishing a current energy storage constraint and a current discharge constraint by using the current initial energy storage capacity and the current initial PCS power so as to obtain a current energy storage abandoned power; obtaining a current consumption value by using the current stored energy abandoned electric power and the annual new energy abandoned electric power; judging whether the current consumption value meets a preset condition or not; and if not, regenerating the current energy storage abandoned electric power and the current consumption value, recalculating a new current consumption value until preset conditions are met, and outputting the most reasonable current initial energy storage capacity and the current initial PCS power to obtain an energy storage scale configuration scheme with more excellent consumption effect.
Description
Technical Field
The invention relates to the field of power systems, in particular to an energy storage configuration method, system and device for consuming electric energy abandoned by new energy and a computer readable storage medium.
Background
With the rapid growth of wind power and photovoltaic power generation installation in recent years, the absorption situations of wind power, photovoltaic power generation and the like are increasingly severe. The wind power abandon of the whole country in 2017 is 419 hundred million kilowatts, the wind power abandon rate is 12 percent, and the light power abandon rate is 6 percent when the light power abandon rate is 73 hundred million kilowatts. Although the electricity discarding amount of electricity was somewhat lower than the electricity discarding rate in 2016 years, it was still enormous in terms of absolute quantity.
The energy storage technology comprises water pumping energy storage, advanced storage battery energy storage, flywheel energy storage, superconducting magnetic energy storage, super capacitor energy storage, compressed air energy storage and the like, has multiple purposes, and is a necessary means for solving the problems of discontinuity, instability and uncontrollable power generation of renewable energy sources, realizing tracking planned power generation and realizing safe and stable power supply. With the progress of energy storage technology and the reduction of cost in recent years, the promotion of clean energy consumption by means of energy storage becomes possible.
The existing energy storage configuration method can generate a power curve and abandoned wind sequence data only based on a historical theory of a new energy station, and is used for waiting for abandoned wind and abandoned light at the new energy station side without actually considering the actual situation that an external power transmission channel is blocked, so that estimation of abandoned wind and abandoned light, and large deviation of energy storage configuration capacity and power are generally caused.
Therefore, there is a need for a method of configuring the energy storage scale with more excellent digestion effect.
Disclosure of Invention
In view of the above, the present invention provides an energy storage configuration method, system, device and computer readable storage medium for consuming electric energy discarded by new energy, so as to obtain an energy storage scale configuration scheme with better consumption effect. The specific scheme is as follows:
an energy storage configuration method for consuming electric energy abandoned by new energy comprises the following steps:
s1: obtaining outgoing power of an outgoing channel by using theoretical generatable power of a new energy power station and annual total load power of the power station;
s2: utilizing the outgoing power of the outgoing channel and the transmission power of the main transformer to obtain annual new energy abandoned electric power;
s3: generating a current initial energy storage capacity and a current initial PCS power by using the annual new energy abandoned electric power;
s4: establishing a current energy storage constraint and a current discharge constraint by using the current initial energy storage capacity and the current initial PCS power;
s5: obtaining current energy storage abandoned power by using current energy storage constraint and current discharge constraint;
s6: obtaining a current consumption value by using the current stored energy abandoned electric power and the annual new energy abandoned electric power;
s7: judging whether the current consumption value meets a preset condition or not;
s8: if not, returning to S3 to regenerate the current initial energy storage capacity and the current initial PCS power;
s9: and if so, outputting the current initial energy storage capacity and the current initial PCS power.
Optionally, the process of obtaining the annual new energy abandoned electric power by using the outgoing power of the outgoing channel and the transmission power of the main transformer includes:
acquiring the transmission power of the main transformer in each time period;
and obtaining the annual new energy abandoned electric power by utilizing the transmission power of the main transformer in each time interval and the outgoing power of the outgoing channel.
Optionally, the discharge constraint is: ccurtail_i＝Cs_i-Pset×0.25×k；
In the formula, Ccurtail_iIndicating the time period when the ith data point is in the power limit, the current energy storage capacity when discharging according to the maximum power, Cs_iRepresents the energy storage capacity, P, of the ith data pointsetRepresenting the current initial PCS power, k represents the discharge power coefficient.
Optionally, the energy storage constraint is: ccurtail_i＝Cs_i+Ps_i×0.25；
In the formula, Ps_iIndicating the current PCS power for the ith data point.
Optionally, the process of obtaining the current consumption value by using the current stored energy abandoned electric power and the annual new energy abandoned electric power includes:
substituting the current stored energy abandoned electric power and the annual new energy abandoned electric power into a consumption calculation formula to obtain a current consumption value; wherein the content of the first and second substances,
the formula for the absorption calculation is as follows:
where eta represents the current consumption value, Pcurtail_iElectric power abandoned from new energy source, P, representing the ith data pointnew_iAnd representing the current stored electric power abandonment of the ith data point.
Optionally, the preset condition is a maximum consumption value under a preset economic constraint.
The invention also discloses an energy storage configuration system for consuming the electric quantity abandoned by the new energy, which comprises the following components:
the outgoing power calculation module is used for obtaining outgoing power of an outgoing channel by utilizing theoretical generatable power of the new energy power station and annual total load power of the power station;
the abandoned electric power calculation module is used for obtaining annual new energy abandoned electric power by utilizing the outgoing power of the outgoing channel and the transmission power of the main transformer;
the initial parameter setting module is used for generating current initial energy storage capacity and current initial PCS power by utilizing the annual new energy abandoned electric power;
the constraint establishing module is used for establishing current energy storage constraint and current discharge constraint by using the current initial energy storage capacity and the current initial PCS power;
the energy storage electricity abandoning module is used for obtaining current energy storage electricity abandoning power by utilizing current energy storage constraint and current discharge constraint;
the consumption calculation module is used for obtaining a current consumption value by utilizing the current stored energy abandoned electric power and the annual new energy abandoned electric power;
the judging module is used for judging whether the current consumption value meets a preset condition or not;
the circulating module is used for regenerating the current initial energy storage capacity and the current initial PCS power by using the initial parameter setting module to recalculate the current consumption value when the judging module judges that the current consumption value does not meet the preset condition;
and the output module is used for outputting the current initial energy storage capacity and the current initial PCS power when the judgment module judges that the current consumption value meets the preset condition.
Optionally, the determining module is specifically configured to determine whether the current consumption value meets a maximum consumption value under a preset economic constraint.
The invention also discloses an energy storage configuration device for absorbing the electric quantity abandoned by the new energy, which comprises:
a memory for storing a computer program;
a processor for executing the computer program to implement the energy storage configuration method for absorbing the electric energy discard amount of the new energy source as described in the previous paragraph.
The invention also discloses a computer readable storage medium, wherein an energy storage configuration program for consuming the electric energy abandon of the new energy is stored on the computer readable storage medium, and the energy storage configuration program for consuming the electric energy abandon of the new energy is executed by a processor to realize the steps of the energy storage configuration method for consuming the electric energy abandon of the new energy.
The invention discloses an energy storage configuration method for consuming electric energy abandoned by new energy, which comprises the following steps: s1: obtaining outgoing power of an outgoing channel by using theoretical generatable power of a new energy power station and annual total load power of the power station; s2: transmitting power and transmission power of a main transformer by using an outgoing channel to obtain annual new energy abandoned electric power; s3: generating current initial energy storage capacity and current initial PCS power by utilizing annual new energy abandoned electric power; s4: establishing a current energy storage constraint and a current discharge constraint by using the current initial energy storage capacity and the current initial PCS power; s5: obtaining current energy storage abandoned power by using current energy storage constraint and current discharge constraint; s6: obtaining a current consumption value by using the current stored energy abandoned electric power and the annual new energy abandoned electric power; s7: judging whether the current consumption value meets a preset condition or not; s8: if not, returning to S3 to regenerate the current initial energy storage capacity and the current initial PCS power; s9: and if so, outputting the current initial energy storage capacity and the current initial PCS power.
The invention obtains annual new energy abandoned power by utilizing the calculated outgoing power of the outgoing channel and the transmission power of the main transformer, then sets the current initial energy storage capacity and the current initial PCS power by utilizing the annual new energy abandoned power, and then repeatedly calculates the current energy storage abandoned power and the current consumption value after establishing the current energy storage constraint and the current discharge constraint until the preset condition is met, so that the most reasonable current initial energy storage capacity and the current initial PCS power can be output, and the energy storage scale configuration scheme with more excellent consumption effect is obtained.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic flow chart of an energy storage configuration method for consuming electric energy discarded by a new energy source according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an energy storage configuration system for consuming electric energy discarded by a new energy source according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses an energy storage configuration method for consuming electric energy abandoned by new energy, which is shown in figure 1 and comprises the following steps:
s1: and obtaining the outgoing power of the outgoing channel by using the theoretical generatable power of the new energy power station and the annual total load power of the power station.
Specifically, the outgoing power of the outgoing channel is the surplus power which can be transmitted outwards under the condition that the power transmitted by the new energy power station meets the total load power of the power station; the theoretical power generation capacity of the wind power plant and the photovoltaic power plant all year round can be measured and calculated by utilizing the wind speed, irradiance information and historical output data provided by the new energy plant according to the NB/T31055-.
Wherein, the annual theoretical power generation capacity of the wind power plant and the photovoltaic power plant can be respectively expressed as Pwind_iAnd Ppv_iAll are data sets consisting of 35040 data points all year around, one data point every 15 minutes.
Specifically, the total load power P according to the yearloadAnd calculating the outgoing power P of the outgoing channel according to the theoretical power generation capacity of the new energy power stationnet。
Similarly, the total load power PloadIs a data set consisting of one data point every 15 minutes and 35040 data points all year round; outgoing power P of outgoing channelnetCan be obtained by an outgoing power calculation formula; wherein the content of the first and second substances,
the outgoing power calculation formula is: pnet＝Pwind+Ppv-Pload；
It will be appreciated that PnetAlso a data set consisting of one data point every 15 minutes, 35040 data points throughout the year.
S2: and transmitting power and transmission power of the main transformer by using the outgoing channel to obtain annual new energy abandoned electric power.
It should be noted that the outgoing power of the outgoing channel needs to be transmitted to the outside through the main transformer, therefore, the transmission power of the main transformer determines how much power the new energy station can transmit to the outside, when the transmission power of the main transformer is smaller than the outgoing power of the outgoing channel, the excess outgoing power has to be discarded as discarded electric power by the new energy station, and the specific steps may refer to step S21 and step S22; wherein the content of the first and second substances,
s21: and acquiring the transmission power of the main transformer in each time period.
Specifically, the transmission power of the main transformer in each time interval is different, so that the transmission power of the main transformer in each time interval needs to be acquired for performing sectional calculation.
S22: and the transmission power of each time period of the main transformer and the outgoing power of the outgoing channel are utilized to obtain the annual new energy abandoned electric power.
Specifically, the annual new energy abandoned electric power can be obtained by comparing the difference value of the outgoing power of the outgoing channel and the transmission power of the main transformer in the corresponding time interval.
For example, in 1 month to 6 months throughout the year, the main transformer operates in the operation mode A, and the corresponding transmission capacity is PAAnd the operation is carried out in the B operation mode in 7-12 months, and the corresponding transmission capacity is PB(ii) a Months 1-6 correspond to 0-17520 of 35040 data points in the whole year, and months 7-12 correspond to 17521-35040 data points in the whole year.
Let subscript i denote the ith data point, then under the current assumptions, i ∈ [0,17520):
i ∈ [17520,35040 ]:
in the formula, Pcurtail_iAnd representing the new energy abandoned electric power of the ith data point, wherein the sum of the new energy abandoned electric powers of all the data points is the new energy abandoned electric power of the whole year.
S3: and generating the current initial energy storage capacity and the current initial PCS power by using the annual new energy abandoned electric power.
It should be noted that the new energy power station does not always generate the new energy electricity discard amount, and even the capacity of the new energy power station is lower than the energy consumption, therefore, the energy storage capacity of the energy storage device is not necessarily equal to the new energy electricity discard amount, meanwhile, the factors of economy, field, technology and the like are comprehensively considered, the energy storage capacity and the PCS power are not only one scheme, therefore, the generation of the current initial energy storage capacity and the current initial PCS power by using the annual new energy abandoned electric power is not only one solution, under the condition of considering the electric power abandon of new energy sources all year round, the current initial energy storage capacity and the current initial PCS power can be adjusted within a certain range, that is, using the annual new energy discarded electric power, a plurality of solutions corresponding to the current initial energy storage capacity and the current initial PCS power are generated, and therefore, different current initial energy storage capacities and current initial PCS power can be regenerated by using annual new energy abandoned electric power.
S4: and establishing current energy storage constraint and current discharge constraint by using the current initial energy storage capacity and the current initial PCS power.
It can be understood that the current initial energy storage capacity and the current initial PCS power need to satisfy the current energy storage constraint and the current discharge constraint, that is, the state of the energy storage battery during charging and discharging is simulated, and an energy storage calculation model is obtained.
S5: obtaining current energy storage abandoned power by using current energy storage constraint and current discharge constraint;
s6: obtaining a current consumption value by using the current stored energy abandoned electric power and the annual new energy abandoned electric power;
specifically, under the condition that the constraint is met, the current energy storage electric power curtailment is calculated, then the current energy storage electric power curtailment and the annual new energy electric power curtailment are utilized, the current consumption value is calculated, the current initial energy storage capacity and the current initial PCS power are calculated, and the consumption amount of the annual new energy electric power curtailment can be calculated.
S7: judging whether the current consumption value meets a preset condition or not;
s8: if not, returning to S3 to regenerate the current initial energy storage capacity and the current initial PCS power;
s9: and if so, outputting the current initial energy storage capacity and the current initial PCS power.
Specifically, in order to reduce the electric power waste of new energy, reuse energy and reduce energy waste all the year round, a preset condition is set, whether the current consumption value meets the preset condition or not is judged, if the current initial energy storage capacity and the current initial PCS power which are initially set are not met, unreasonable adjustment is needed, therefore, returning to S3, the current initial energy storage capacity and the current initial PCS power different from the previous calculation are regenerated with reference to the annual new energy discarded electric power, the current absorption value is calculated using the newly generated current initial energy storage capacity and the current initial PCS power until the current absorption value satisfies the preset condition, indicating that the current initial energy storage capacity and the current initial PCS power are set reasonably, and outputting the current initial energy storage capacity and the current initial PCS power setting of which the current consumption value meets the preset condition as output to obtain an energy storage scale configuration scheme.
Therefore, in the embodiment of the invention, the calculated outgoing power of the outgoing channel and the transmission power of the main transformer are utilized to obtain the annual new energy discarded electric power, the current initial energy storage capacity and the current initial PCS power are set by utilizing the annual new energy discarded electric power, and the current initial energy storage capacity and the current initial PCS power are utilized to repeatedly calculate the current energy storage discarded electric power and the current absorption value after the current energy storage constraint and the current discharge constraint are established until the preset condition is met, so that the most reasonable current initial energy storage capacity and the current initial PCS power can be output, and the energy storage scale configuration scheme with more excellent absorption effect is obtained.
The embodiment of the invention discloses a specific energy storage configuration method for consuming electric energy abandoned by new energy, and compared with the previous embodiment, the embodiment further explains and optimizes the technical scheme. Specifically, the method comprises the following steps:
and the discharge constraint is used for the total beam discharge, the annual energy storage operation is simulated one by one data point under the conditions of the current initial energy storage capacity and the current initial PCS power, and the stored energy is discharged according to a preset discharge power coefficient in a time period when wind and light are abandoned, until the stored energy is discharged.
The above discharge constraints can be expressed as: ccurtail_i＝Cs_i-Pset×0.25×k；
In the formula, Ccurtail_iIndicating the time period when the ith data point is in the power limit, the current energy storage capacity when discharging according to the maximum power, Cs_iRepresents the energy storage capacity, P, of the ith data pointsetRepresenting the current initial PCS power, k represents the discharge power coefficient.
Specifically, energy storage constraint is used for constraining the total amount of energy storage, the annual energy storage operation is simulated one by one data point under the conditions of the current initial energy storage capacity and the current initial PCS power, when wind and light are abandoned, the energy storage is started to charge, and the situation that the charging is stopped until the energy storage is full is achieved.
Specifically, the ith data point is set to be in a power-limited time period, and the stored energy is charged at the time.
When the energy storage PCS power P required by power abandoning of the time interval of the data point i is completely consumedcurtail_iDoes not exceed PCS power maximum PsetAt this time, configurable PCS power Ps_i＝Pcurtail_i(ii) a When required energy storage PCS power Pcurtail_iExceeding PCS power maximum PsetWhen configurable PCS power is Ps_i＝Pset(ii) a That is to say that the first and second electrodes,
accordingly, the current energy storage capacity C required at this timecurtail_iIs Ccurtail_i＝Cs_i+Ps_iX 0.25, i.e. energy storage constraint, wherein Ps_iIndicating the current PCS power for the ith data point.
When the current energy storage capacity C is requiredcurtail_iDoes not exceed the maximum value of energy storage capacity CsetAt this time, the energy storage capacity C of the next data points_(i+1)＝Ccurtail_i(ii) a When the current energy storage capacity C is requiredcurtail_iExceeding maximum value of energy storage capacity CsetAt this time, the energy storage capacity of the next data point is Ccurtail_(i+1)＝Cset(ii) a That is to say that the first and second electrodes,
when the current energy storage capacity C is requiredcurtail_iExceeding maximum value of energy storage capacity CsetWhile, the energy storage capacity is inversely proportional
The calculated configurable PCS power forms a second constraint: ps_i＝(Cset-Cs_i)×4；
At the moment, the electric power of the new energy after the energy storage is added is abandoned as Pnew_i，Pnew_i＝Pcurtail_i-Ps_i。
Specifically, the process of obtaining the current consumption value by using the current stored energy abandoned electric power and the annual new energy abandoned electric power includes:
substituting the current energy storage abandoned electric power and the annual new energy abandoned electric power into a consumption calculation formula to obtain a current consumption value; wherein the content of the first and second substances,
the formula for the consumption calculation is:
where eta represents the current consumption value, Pcurtail_iElectric power abandoned from new energy source, P, representing the ith data pointnew_iAnd representing the current stored electric power abandonment of the ith data point.
The preset condition may be that when the absorption value reaches 60%, the cycle is ended, and the current initial energy storage capacity and the current initial PCS power when the absorption value reaches 60% are output, and of course, the specific setting of the preset condition may be set according to an actual application scenario, which is not limited herein.
Furthermore, the current initial energy storage capacity and the current initial PCS power output by the energy storage device meet the actual engineering and energy storage economy, and the preset condition is the maximum absorption value under the preset economic constraint.
Specifically, by establishing economic constraints considering engineering practice and energy storage economy, the current initial energy storage capacity and the current initial PCS power of the maximum consumption value can be obtained under the condition of meeting the economic constraints, and the comprehensive benefit maximization is realized for an energy storage scale configuration scheme.
Correspondingly, the embodiment of the present invention further discloses an energy storage configuration system for consuming the electric energy discarded by the new energy, as shown in fig. 2, the system includes:
the outgoing power calculation module 1 is used for obtaining outgoing power of an outgoing channel by utilizing theoretical generatable power of a new energy power station and annual total load power of the power station;
the abandoned electric power calculation module 2 is used for obtaining annual new energy abandoned electric power by utilizing the outgoing power of the outgoing channel and the transmission power of the main transformer;
the initial parameter setting module 3 is used for generating current initial energy storage capacity and current initial PCS power by utilizing annual new energy abandoned electric power;
the constraint establishing module 4 is used for establishing current energy storage constraint and current discharge constraint by using the current initial energy storage capacity and the current initial PCS power;
the energy storage electricity abandoning module 5 is used for obtaining current energy storage electricity abandoning power by utilizing current energy storage constraint and current discharge constraint;
the consumption calculating module 6 is used for obtaining a current consumption value by utilizing the current stored energy abandoned electric power and the annual new energy abandoned electric power;
the judging module 7 is used for judging whether the current consumption value meets the preset condition or not;
the circulating module 8 is used for regenerating the current initial energy storage capacity and the current initial PCS power by using the initial parameter setting module when the judging module judges that the current consumption value does not meet the preset condition so as to recalculate the current consumption value;
and the output module 9 is configured to output the current initial energy storage capacity and the current initial PCS power when the determination module determines that the current consumption value meets the preset condition.
Therefore, in the embodiment of the invention, the calculated outgoing power of the outgoing channel and the transmission power of the main transformer are utilized to obtain the annual new energy discarded electric power, the current initial energy storage capacity and the current initial PCS power are set by utilizing the annual new energy discarded electric power, and the current initial energy storage capacity and the current initial PCS power are utilized to repeatedly calculate the current energy storage discarded electric power and the current absorption value after the current energy storage constraint and the current discharge constraint are established until the preset condition is met, so that the most reasonable current initial energy storage capacity and the current initial PCS power can be output, and the energy storage scale configuration scheme with more excellent absorption effect is obtained.
The abandoned electric power calculation module 2 comprises a transmission power acquisition unit and a abandoned electric power calculation unit; wherein the content of the first and second substances,
the transmission power acquisition unit is used for acquiring transmission power of each time period of the main transformer;
and the abandoned electric power calculation unit is used for obtaining the abandoned electric power of the new energy source all the year around by utilizing the transmission power of the main transformer in each time interval and the outgoing power of the outgoing channel.
The above-mentioned discharge constraints are: ccurtail_i＝Cs_i-Pset×0.25×k；
In the formula, Ccurtail_iIndicating the time period when the ith data point is in the power limit, the current energy storage capacity when discharging according to the maximum power, Cs_iRepresents the energy storage capacity, P, of the ith data pointsetRepresenting the current initial PCS power, k represents the discharge power coefficient.
The energy storage constraint is as follows: ccurtail_i＝Cs_i+Ps_i×0.25；
In the formula, Ps_iIndicating the current PCS power for the ith data point.
The consumption calculating module 6 is specifically configured to substitute the current stored energy discarded electric power and the annual new energy discarded electric power into a consumption calculating formula to obtain a current consumption value; wherein the content of the first and second substances,
the formula for the consumption calculation is:
where eta represents the current consumption value, Pcurtail_iElectric power abandoned from new energy source, P, representing the ith data pointnew_iAnd representing the current stored electric power abandonment of the ith data point.
The judging module 7 is specifically configured to judge whether the current consumption value meets a maximum consumption value under a preset economic constraint.
In addition, the embodiment of the invention also discloses an energy storage configuration device for consuming the electric energy abandoned by the new energy, which comprises:
a memory for storing a computer program;
a processor for executing a computer program to implement the energy storage configuration method for consuming the electric energy dump of the new energy source as described above.
For specific contents of the energy storage configuration method for absorbing the electric energy of the new energy, reference may be made to the description in the foregoing embodiments, and details are not described herein again.
In addition, the embodiment of the invention also discloses a computer readable storage medium, wherein an energy storage configuration program for consuming the electric energy abandon amount of the new energy is stored on the computer readable storage medium, and the steps of the energy storage configuration method for consuming the electric energy abandon amount of the new energy are realized when the energy storage configuration program for consuming the electric energy abandon amount of the new energy is executed by a processor.
For specific contents of the energy storage configuration method for absorbing the electric energy of the new energy, reference may be made to the description in the foregoing embodiments, and details are not described herein again.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The energy storage configuration method, system, device and computer readable storage medium for absorbing the electric energy of the new energy provided by the invention are described in detail above, and a specific example is applied in the text to explain the principle and the implementation of the invention, and the description of the above embodiment is only used to help understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. An energy storage configuration method for consuming electric energy abandoned by new energy is characterized by comprising the following steps:
s1: obtaining outgoing power of an outgoing channel by using theoretical generatable power of a new energy power station and annual total load power of the power station;
s2: utilizing the outgoing power of the outgoing channel and the transmission power of the main transformer to obtain annual new energy abandoned electric power;
s3: generating a current initial energy storage capacity and a current initial PCS power by using the annual new energy abandoned electric power;
s4: establishing a current energy storage constraint and a current discharge constraint by using the current initial energy storage capacity and the current initial PCS power;
s5: obtaining current energy storage abandoned power by using current energy storage constraint and current discharge constraint;
s6: obtaining a current consumption value by using the current stored energy abandoned electric power and the annual new energy abandoned electric power;
s7: judging whether the current consumption value meets a preset condition or not;
s8: if not, returning to S3 to regenerate the current initial energy storage capacity and the current initial PCS power;
s9: and if so, outputting the current initial energy storage capacity and the current initial PCS power.
2. An energy storage configuration method for absorbing electric energy discard of new energy according to claim 1, wherein the process of obtaining electric energy discard of new energy all year round by using the outgoing power of the outgoing channel and the transmission power of the main transformer comprises:
acquiring the transmission power of the main transformer in each time period;
and obtaining the annual new energy abandoned electric power by utilizing the transmission power of the main transformer in each time interval and the outgoing power of the outgoing channel.
3. An energy storage configuration method to absorb electric energy discard of new energy according to claim 1, wherein said discharge constraint is: ccurtail_i＝Cs_i-Pset×0.25×k；
In the formula, Ccurtail_iIndicating the time period when the ith data point is in the power limit, the current energy storage capacity when discharging according to the maximum power, Cs_iRepresents the energy storage capacity, P, of the ith data pointsetRepresenting the current initial PCS power, k represents the discharge power coefficient.
4. An energy storage configuration method to absorb electric energy discard of new energy according to claim 3, wherein the energy storage constraint is: ccurtail_i＝Cs_i+Ps_i×0.25；
In the formula, Ps_iIndicating the current PCS power for the ith data point.
5. An energy storage configuration method for absorbing electric energy discard amount of new energy according to claim 4, wherein the process of obtaining the current absorption value by using the current energy storage electric energy discard amount and the annual new energy discard amount comprises:
substituting the current stored energy abandoned electric power and the annual new energy abandoned electric power into a consumption calculation formula to obtain a current consumption value; wherein the content of the first and second substances,
the formula for the absorption calculation is as follows:
where eta represents the current consumption value, Pcurtail_iElectric power abandoned from new energy source, P, representing the ith data pointnew_iAnd representing the current stored electric power abandonment of the ith data point.
6. An energy storage configuration method for absorbing new energy curtailment according to any of the claims 1 to 5, characterized in that the preset condition is a maximum absorption value under a preset economic constraint.
7. An energy storage configuration system that consumes new forms of energy and abandons electric quantity, its characterized in that includes:
the outgoing power calculation module is used for obtaining outgoing power of an outgoing channel by utilizing theoretical generatable power of the new energy power station and annual total load power of the power station;
the abandoned electric power calculation module is used for obtaining annual new energy abandoned electric power by utilizing the outgoing power of the outgoing channel and the transmission power of the main transformer;
the initial parameter setting module is used for generating current initial energy storage capacity and current initial PCS power by utilizing the annual new energy abandoned electric power;
the constraint establishing module is used for establishing current energy storage constraint and current discharge constraint by using the current initial energy storage capacity and the current initial PCS power;
the energy storage electricity abandoning module is used for obtaining current energy storage electricity abandoning power by utilizing current energy storage constraint and current discharge constraint;
the consumption calculation module is used for obtaining a current consumption value by utilizing the current stored energy abandoned electric power and the annual new energy abandoned electric power;
the judging module is used for judging whether the current consumption value meets a preset condition or not;
the circulating module is used for regenerating the current initial energy storage capacity and the current initial PCS power by using the initial parameter setting module to recalculate the current consumption value when the judging module judges that the current consumption value does not meet the preset condition;
and the output module is used for outputting the current initial energy storage capacity and the current initial PCS power when the judgment module judges that the current consumption value meets the preset condition.
8. The energy storage configuration system for absorbing the electric energy discard of the new energy according to claim 7, wherein the determining module is specifically configured to determine whether the current absorption value meets a maximum absorption value under a preset economic constraint.
9. An energy storage configuration device for consuming new energy electric discard quantity, comprising:
a memory for storing a computer program;
a processor for executing the computer program to implement the energy storage configuration method for absorbing new energy curtailment as claimed in any one of claims 1 to 6.
10. A computer-readable storage medium, having stored thereon an energy storage configuration program for absorbing a new energy power curtailment amount, the energy storage configuration program for absorbing a new energy power curtailment amount being executed by a processor to implement the steps of the energy storage configuration method for absorbing a new energy power curtailment amount according to any one of claims 1 to 6.
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