CN103277250B - The appraisal procedure of wind-powered electricity generation amount is abandoned in large-scale wind electricity base based on mark post unit - Google Patents
The appraisal procedure of wind-powered electricity generation amount is abandoned in large-scale wind electricity base based on mark post unit Download PDFInfo
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Abstract
The invention discloses the appraisal procedure that wind-powered electricity generation amount is abandoned in a kind of large-scale wind electricity base based on mark post unit, comprise the following steps: the average output coefficient calculating wind energy turbine set every 5 minutes all mark post units, calculate this wind energy turbine set real-time start capacity of every 5 minutes, calculate this wind energy turbine set theory of every 5 minutes to exert oneself, calculate every 5 minutes abandon wind-powered electricity generation amount, draw and abandon wind-powered electricity generation amount in whole wind energy turbine set certain hour section, by calculate each wind energy turbine set in wind power base abandon that wind-powered electricity generation measures whole wind power base abandon wind-powered electricity generation amount.Realize simple to operate, cost is low and can accurately carry out abandoning the advantage that wind-powered electricity generation gauge calculates.
Description
Technical field
The present invention relates to wind-powered electricity generation power field, particularly, relate to the appraisal procedure that wind-powered electricity generation amount is abandoned in a kind of large-scale wind electricity base based on mark post unit.
Background technique
Wind energy turbine set abandons the factors such as wind-powered electricity generation amount refers to powered network transmission channel, safe operation needs impact, and wind energy turbine set can be sent out and fail the electricity that sends, and this electricity does not comprise the electricity that wind energy turbine set fails because of blower fan equipment of itself failure and other reasons to send.
Abandoning wind is a kind of universal phenomenon in wind electricity large-scale evolution, with in hydroelectric power process to abandon water closely similar.Large-scale wind electricity base area coverage is wide, generally comprises multiple wind energy turbine set or wind farm group, due to electrical network transfer passage send the factor such as the limit, Real-time Load balance can cause to a certain degree abandon wind.The understanding of correct science is abandoned wind, is calculated abandon wind-powered electricity generation amount and will contribute to health, the steady development of scale wind-powered electricity generation with reasonable manner, contributes to promoting dispatching of power netwoks operation level, promotes the coordinated development of wind-powered electricity generation planning and Electric Power Network Planning, improves clean energy resource utilization ratio.
At present, China's wind-powered electricity generation industry not yet forms standard to the assessment algorithm abandoning wind-powered electricity generation amount, and existing method is generally calculate exerting oneself and the difference of electric motor power of wind energy turbine set, then carries out integration to it and obtains abandoning wind-powered electricity generation amount.But for ten million multikilowatt wind power base, the actual simultaneity factor of exerting oneself of each wind energy turbine set is general lower, therefore calculates in this way and generally can cause abandoning the inaccurate of wind-powered electricity generation gauge calculation.Other method is by the measurement of anemometer tower to actual wind energy resources, calculate unit exerting oneself without the theory of abandoning under wind condition, and compared with actual power generation, thus realize the estimation of abandoning wind-powered electricity generation amount, but the prerequisite of the method has corresponding anemometer tower to all wind energy turbine set in wind power base, but when wind energy turbine set does not have corresponding anemometer tower, this method just can lose efficacy, especially, for ten million multikilowatt wind power base, be difficult to each wind energy turbine set and set up corresponding anemometer tower.Make the method cost compare high, operation more complicated.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose the appraisal procedure that wind-powered electricity generation amount is abandoned in a kind of large-scale wind electricity base based on mark post unit, with realize simple to operate, cost is low and can accurately carry out abandoning the advantage that wind-powered electricity generation gauge calculates.
For achieving the above object, the technical solution used in the present invention is:
An appraisal procedure for wind-powered electricity generation amount is abandoned in large-scale wind electricity base based on mark post unit, comprises the following steps:
Step one: obtain the running state of all units of wind energy turbine set and exerting oneself in real time of each unit by wind energy turbine set blower fan real time information of uploading once in every 5 minutes, calculate the average output coefficient of wind energy turbine set every 5 minutes all mark post units, formula is as follows:
Wherein,
that the actual of i-th mark post unit is exerted oneself,
be the single-machine capacity of the i-th station symbol bar unit, samp represents the set of mark post unit;
Step 2: calculate this wind energy turbine set real-time start capacity of every 5 minutes, formula is as follows:
Wherein,
be the single-machine capacity of i-th unit, start represents the set of start unit;
Step 3: calculate this wind energy turbine set theory of every 5 minutes and exert oneself, formula is as follows:
；
Step 4: by EMS(energy management system) obtain every 5 minutes of wind energy turbine set go out force value R in real time, when theory go out force value T be greater than actual go out force value R time think and occur abandoning wind, therefore the wind-powered electricity generation amount of abandoning of every 5 minutes is expressed as:
；
Step 5: the wind-powered electricity generation amount of abandoning in whole wind energy turbine set certain hour section is expressed as:
Wind energy turbine set single-machine capacity is in units of MW, and the unit abandoning wind-powered electricity generation amount is MWh;
Step 6: by calculate each wind energy turbine set in wind power base abandon that wind-powered electricity generation measures whole wind power base abandon wind-powered electricity generation amount.
According to a preferred embodiment of the invention, when output of wind electric field is by limited time, wind energy turbine set mark post unit keeps normal power generation state; When the blower fan comprising mark post unit all needs to shut down, exerting oneself as the electric power of on average rationing the power supply of period of rationing the power supply before stopping transport with wind electric field blower, calculates wind energy turbine set and abandons wind-powered electricity generation amount.
Technological scheme of the present invention has following beneficial effect:
Technology scheme of the present invention.By the generated energy of the mark post unit in each wind energy turbine set, calculate the theoretical capacity of whole wind energy turbine set, by with the comparison of actual electricity obtain wind energy turbine set corresponding abandon wind-powered electricity generation amount, and then obtain whole wind power base abandon wind-powered electricity generation amount.Do not need each wind energy turbine set to set up anemometer tower, thus achieve simple to operate, cost is low and can accurately carry out abandoning the advantage that wind-powered electricity generation gauge calculates.
Below by drawings and Examples, technological scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is for abandoning the appraisal procedure flow chart of wind-powered electricity generation amount in the large-scale wind electricity base based on mark post unit described in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
An appraisal procedure for wind-powered electricity generation amount is abandoned in large-scale wind electricity base based on mark post unit, comprises the following steps:
Step one: obtain the running state of all units of wind energy turbine set and exerting oneself in real time of each unit by wind energy turbine set blower fan real time information of uploading once in every 5 minutes, calculate the average output coefficient of wind energy turbine set every 5 minutes all mark post units, formula is as follows:
Wherein,
that the actual of i-th mark post unit is exerted oneself,
be the single-machine capacity of the i-th station symbol bar unit, samp represents the set of mark post unit;
Step 2: calculate this wind energy turbine set real-time start capacity of every 5 minutes, formula is as follows:
Wherein,
be the single-machine capacity of i-th unit, start represents the set of start unit;
Step 3: calculate this wind energy turbine set theory of every 5 minutes and exert oneself, formula is as follows:
；
Step 4: by EMS(energy management system) obtain every 5 minutes of wind energy turbine set go out force value R in real time, when theory go out force value T be greater than actual go out force value R time think and occur abandoning wind, therefore the wind-powered electricity generation amount of abandoning of every 5 minutes is expressed as:
；
Step 5: the wind-powered electricity generation amount of abandoning in whole wind energy turbine set certain hour section is expressed as:
Wind energy turbine set single-machine capacity is in units of MW, and the unit abandoning wind-powered electricity generation amount is MWh;
Step 6: by calculate each wind energy turbine set in wind power base abandon that wind-powered electricity generation measures whole wind power base abandon wind-powered electricity generation amount.
Wherein, when output of wind electric field is by limited time, wind energy turbine set mark post unit keeps normal power generation state; When the blower fan comprising mark post unit all needs to shut down, exerting oneself as the electric power of on average rationing the power supply of period of rationing the power supply before stopping transport with wind electric field blower, calculates wind energy turbine set and abandons wind-powered electricity generation amount.
Hereafter be described in detail for the concrete running of wind energy turbine set, as shown in Figure 1: during dispatching of power netwoks institution requests wind farm power ration, " the mark post unit " of wind energy turbine set is not rationed the power supply, generated energy is answered as the theory of the similar unit of this wind energy turbine set using its generated energy, deduct the actual power generation of similar unit, what obtain whole wind energy turbine set by suing for peace abandons the limited electricity of wind.
The running state of all units of wind energy turbine set and exerting oneself in real time of each unit can be obtained by wind energy turbine set blower fan real time information of uploading once in every 5 minutes.Calculate the average output coefficient of a certain wind energy turbine set every 5 minutes all mark post units
（1）
Calculate this wind energy turbine set real-time start capacity of every 5 minutes
（2）
Calculate this wind energy turbine set theory of every 5 minutes to exert oneself
（3）
By EMS(energy management system) can obtain every 5 minutes of wind energy turbine set go out force value R in real time, perfect recording mechanism of rationing the power supply not yet is formed because dispatching of power netwoks mechanism is most at present, when theory go out force value T be greater than actual go out force value R time think and occur abandoning wind, therefore every 5 minutes abandon wind-powered electricity generation amount and can be expressed as:
（4）
Therefore whole wind energy turbine set abandoning wind-powered electricity generation amount and can be expressed as sometime in section:
（5）
If wind energy turbine set single-machine capacity is in units of MW, then the unit abandoning wind-powered electricity generation amount is MWh.
Wind-powered electricity generation amount is abandoned by what calculate that the wind-powered electricity generation amount of abandoning of each wind energy turbine set in wind power base can obtain whole wind power base.
Wherein, the determination of wind energy turbine set mark post unit, is uniformly distributed by geographical position and physical features in principle, can choose different model, the unit of different capabilities, accurately the overall actual power ability of this wind energy turbine set of reflection.Each scheduling institution can determine mark post unit jointly according to actual conditions and wind energy turbine set, the selection principle of wind energy turbine set mark post unit requires be no more than 10% of Wind turbines quantity.When selected mark post unit breaks down, wind energy turbine set can replace fault mark post unit with adjacent Wind turbines, and and Times power dispatching station.
When output of wind electric field is by limited time, wind energy turbine set mark post unit does not participate in the limited adjustment of load in principle, remains normal power generation state; When the blower fan comprising mark post unit all needs to shut down, exerting oneself as the electric power of on average rationing the power supply of period of rationing the power supply before available wind electric field blower stoppage in transit, calculates wind energy turbine set and abandons wind-powered electricity generation amount.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. abandon an appraisal procedure for wind-powered electricity generation amount based on the large-scale wind electricity base of mark post unit, it is characterized in that, comprise the following steps:
Step one: obtain the running state of all units of wind energy turbine set and exerting oneself in real time of each unit by wind energy turbine set blower fan real time information of uploading once in every 5 minutes, calculate the average output coefficient of wind energy turbine set every 5 minutes all mark post units, formula is as follows:
Wherein,
that the actual of i-th mark post unit is exerted oneself,
be the single-machine capacity of the i-th station symbol bar unit, samp represents the set of mark post unit;
Step 2: calculate this wind energy turbine set real-time start capacity of every 5 minutes, formula is as follows:
Wherein,
be the single-machine capacity of i-th unit, start represents the set of start unit;
Step 3: calculate this wind energy turbine set theory of every 5 minutes and exert oneself, formula is as follows:
Step 4: by EMS(energy management system) obtain every 5 minutes of wind energy turbine set go out force value R in real time, when theory go out force value T be greater than actual go out force value R time think and occur abandoning wind, therefore the wind-powered electricity generation amount of abandoning of every 5 minutes is expressed as:
Step 5: the wind-powered electricity generation amount of abandoning in whole wind energy turbine set certain hour section is expressed as:
Wind energy turbine set single-machine capacity is in units of MW, and the unit abandoning wind-powered electricity generation amount is MWh;
Step 6: by calculate each wind energy turbine set in wind power base abandon that wind-powered electricity generation measures whole wind power base abandon wind-powered electricity generation amount.
2. the appraisal procedure of wind-powered electricity generation amount is abandoned in the large-scale wind electricity base based on mark post unit according to claim 1, it is characterized in that, when output of wind electric field is by limited time, wind energy turbine set mark post unit keeps normal power generation state; When the blower fan comprising mark post unit all needs to shut down, exerting oneself as the electric power of on average rationing the power supply of period of rationing the power supply before stopping transport with wind electric field blower, calculates wind energy turbine set and abandons wind-powered electricity generation amount.
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| CN105184681B (en) * | 2015-09-29 | 2022-02-11 | 国网甘肃省电力公司 | Large photovoltaic power generation cluster light abandoning electric quantity evaluation method based on nearest distance clustering |
| CN105160602A (en) * | 2015-09-29 | 2015-12-16 | 国网甘肃省电力公司 | Marker post wind power plant based method for calculating wind curtailment electric quantity of wind power cluster |
| CN105243604B (en) * | 2015-09-29 | 2022-11-01 | 国网甘肃省电力公司 | Large photovoltaic power generation cluster light abandoning amount evaluation method based on benchmark photovoltaic power station |
| CN105243605A (en) * | 2015-09-29 | 2016-01-13 | 国网甘肃省电力公司 | Irradiation similarity based evaluation method for light and power abandonment amount of large photovoltaic power generation cluster |
| CN105160603A (en) * | 2015-09-29 | 2015-12-16 | 国网甘肃省电力公司 | Large wind power generation cluster wind curtailment electric quantity evaluation method based on space truss structure clustering |
| CN105184097A (en) * | 2015-09-29 | 2015-12-23 | 国网甘肃省电力公司 | Large photovoltaic power generation cluster light discard electric quantity evaluation method based on grid structure clustering |
| CN108399429B (en) * | 2018-02-11 | 2022-03-11 | 同济大学 | Wind power plant group power generation capacity evaluation method based on big data mining technology |
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| CN101764413A (en) * | 2009-11-25 | 2010-06-30 | 中国电力科学研究院 | System simulation method for connecting large-scale wind power into power grid in centralization way |
| CN102182629A (en) * | 2011-03-29 | 2011-09-14 | 国网电力科学研究院 | Abandon wind power assessment method based on wind resource real-time measurement data |
| CN103023157A (en) * | 2012-11-13 | 2013-04-03 | 中国电力科学研究院 | Hybrid energy storage system control method for reducing abandoned wind rate and tracking wind-power planned output |
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| US7484363B2 (en) * | 2005-10-20 | 2009-02-03 | Michael Reidy | Wind energy harnessing apparatuses, systems, methods, and improvements |
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| CN101764413A (en) * | 2009-11-25 | 2010-06-30 | 中国电力科学研究院 | System simulation method for connecting large-scale wind power into power grid in centralization way |
| CN102182629A (en) * | 2011-03-29 | 2011-09-14 | 国网电力科学研究院 | Abandon wind power assessment method based on wind resource real-time measurement data |
| CN103023157A (en) * | 2012-11-13 | 2013-04-03 | 中国电力科学研究院 | Hybrid energy storage system control method for reducing abandoned wind rate and tracking wind-power planned output |
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