CN109659944A - A kind of control method and device for micro-capacitance sensor analogue system median generatrix voltage - Google Patents
A kind of control method and device for micro-capacitance sensor analogue system median generatrix voltage Download PDFInfo
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- CN109659944A CN109659944A CN201811572444.7A CN201811572444A CN109659944A CN 109659944 A CN109659944 A CN 109659944A CN 201811572444 A CN201811572444 A CN 201811572444A CN 109659944 A CN109659944 A CN 109659944A
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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
- H02J3/12—Circuit arrangements for AC mains or AC distribution networks for adjusting voltage in AC networks by changing a characteristic of the network load
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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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/388—Islanding, i.e. disconnection of local power supply from the network
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
本发明公开了一种用于微电网系统中母线电压的控制方法，在对微电网系统中的母线电压的电压信号进行连续采集后，以预定义规则对采集到的采样数据进行分析确定出采样数据中的畸变点，该畸变点的母线电压为超出正常浮动范围的第一异常母线电压，计算出第一异常母线电压与标准母线电压的第一差值便可以为微电网系统的母线提供与第一差值对应的电压。当母线电压的浮动值超出正常范围时，对母线电压进行了稳定性控制，避免了微电网系统中的负荷发生故障。此外，本发明还公开了一种用于微电网系统中母线电压的控制装置和设备，效果如上。
The invention discloses a method for controlling the busbar voltage in a microgrid system. After the voltage signal of the busbar voltage in the microgrid system is continuously collected, the collected sampling data is analyzed according to a predefined rule to determine the sampling rate. The distortion point in the data, the bus voltage of the distortion point is the first abnormal bus voltage that exceeds the normal floating range, and the first difference between the first abnormal bus voltage and the standard bus voltage can be calculated to provide the bus of the microgrid system. The voltage corresponding to the first difference. When the floating value of the bus voltage exceeds the normal range, the stability control of the bus voltage is carried out to avoid the load failure in the microgrid system. In addition, the present invention also discloses a control device and equipment for the busbar voltage in the microgrid system, and the effects are as above.
Description
Technical field
The present invention relates to micro-capacitance sensor technical field, in particular to a kind of control for micro-capacitance sensor analogue system median generatrix voltage
Method, device and equipment processed.
Background technique
With the development of the industrial revolution, modern science and technology is increasing for demand for energy.And fossil energy largely uses
Very serious pollution can be caused to environment, therefore, in order to meet the needs of all trades and professions are for the energy and avoid making environment
At pollution, need to develop green novel energy source instead of traditional fossil energy, to solve growing energy demand.
In micro-grid system, the energy is largely to be supplied by distributed energy, and weather, temperature etc. are to distributed energy
It is affected, when distributed energy is affected, the power quality that will lead to entire micro-grid system is deteriorated, micro-grid system
Median generatrix voltage is also because can become unstable.In order to solve this problem, by micro-grid system in series
Access batteries to store energy device is supplemented or is absorbed to the busbar voltage of micro-grid system, as the mother of micro-grid system median generatrix
When line voltage exceeds normal voltage, extra busbar voltage is absorbed by batteries to store energy device, when micro-grid system median generatrix
Busbar voltage is lower than normal voltage, the busbar voltage of insufficient section is provided by batteries to store energy device, to maintain micro-grid system
The stability of median generatrix voltage.Currently, the method generallyd use is to utilize sagging control strategy combination batteries to store energy device control
The stability of micro-grid system median generatrix voltage processed.But this kind of control method is used, it can only be to the mother to float in normal range (NR)
Line voltage carries out stability control, when the float value of busbar voltage exceeds normal range (NR), cannot be protected using sagging control strategy
Card carries out stability control to busbar voltage, in this way, the load easily lead in micro-grid system breaks down.
Summary of the invention
It is an object of the invention to disclose it is a kind of for the control method of micro-capacitance sensor analogue system median generatrix voltage, device and
Equipment has carried out stability control to busbar voltage, has avoided micro-capacitance sensor when the float value of busbar voltage exceeds normal range (NR)
Load in system breaks down.
To achieve the above object, the embodiment of the invention discloses following technical solutions:
First, the embodiment of the invention discloses a kind of control methods for micro-grid system median generatrix voltage, comprising:
Continuous sampling is carried out to the voltage signal of the busbar voltage in micro-grid system, obtains sampled data；
The sampled data is analyzed with the distortion point in the determination sampled data with predefined rule, it is described abnormal
The corresponding busbar voltage of height is the first abnormal busbar voltage beyond normal floating range；
Calculate the first difference of the described first abnormal busbar voltage and unified bus voltage；
Voltage corresponding with first difference is provided by energy storage device for the bus in the micro-grid system.
Optionally, further includes:
The sampled data is analyzed with the predefined rule, with voltage floating number in the determination sampled data
Strong point, the corresponding busbar voltage of the voltage floating data point are the second abnormal busbar voltage in the normal floating range；
Calculate the second difference of the described second abnormal busbar voltage and the unified bus voltage；
Voltage corresponding with second difference is provided by the energy storage device for the bus in the micro-grid system.
Optionally, after first difference for calculating the described first abnormal busbar voltage and unified bus voltage, also
Include:
Whether the absolute value for judging first difference is more than first threshold；
If so, closing the power supply device connecting in the micro-grid system with the bus, and filled by the energy storage
The bus being set in the micro-grid system provides supply voltage corresponding with the unified bus voltage；
If it is not, being provided and first difference by energy storage device for the bus in the micro-grid system described in then entering
The step of corresponding voltage.
Optionally, after the power supply device closed and connect in the micro-grid system with the bus, further includes:
Whether the energy surplus for detecting the energy storage device is less than second threshold；
If it is not, being provided and the standard by the energy storage device for the bus in the micro-grid system described in then entering
The step of busbar voltage corresponding supply voltage；
If so, being charged using bulk power system for the energy storage device and being provided and the unified bus for the bus
The corresponding supply voltage of voltage.
Optionally, it is described with predefined rule to the sampled data carry out analysis include:
The sampled data is decomposed using wavelet analysis method, obtains wavelet coefficient；
Invocation target function carries out three layers of progressive reconstruct to the wavelet coefficient, obtains reconstruct data；
Judge whether the absolute value at number of targets strong point in the reconstruct data is greater than third threshold value, and whether exceeds and institute
State the absolute value of the adjacent data point in number of targets strong point；
If more than the third threshold value and exceed the absolute value of the adjacent data point, then the number of targets strong point is
The distortion point.
Optionally, the objective function is specially wrcoef function.
Second, the embodiment of the invention discloses a kind of control devices for micro-grid system median generatrix voltage, comprising:
Sampling module carries out continuous sampling for the voltage signal to the busbar voltage in micro-grid system, is sampled
Data；
First analysis module, for being analyzed the sampled data with the determination sampled data with predefined rule
In all distortion point, the corresponding busbar voltage of the distortion point is the first abnormal busbar voltage beyond normal floating range；
Second computing module, for calculating the first difference of the described first abnormal busbar voltage and unified bus voltage；
First power module, for by energy storage device for the bus in the micro-grid system provide with it is described first poor
It is worth corresponding voltage.
Optionally, further includes:
Second analysis module, for being analyzed with the predefined rule the sampled data, to be adopted described in determination
Voltage floating data point in sample data, the corresponding busbar voltage of the voltage floating data point are in the normal floating range
Second abnormal busbar voltage；
Second computing module, second for calculating the described second abnormal busbar voltage and the unified bus voltage are poor
Value；
Second power module, for being provided and described by the energy storage device for the bus in the micro-grid system
The corresponding voltage of two differences.
Optionally, further includes:
Judgment module, for judging whether the absolute value of first difference is more than first threshold；It is closed if so, entering
Module, if it is not, then entering third power module；
The closedown module for closing the power supply device connecting in the micro-grid system with the bus, and passes through
The energy storage device provides supply voltage corresponding with the unified bus voltage for the bus in the micro-grid system；
The third power module, for being the bus supplement and described the in the micro-grid system by energy storage device
The corresponding voltage of one difference.
Optionally, further includes:
Whether detection module, the energy surplus for detecting the energy storage device are less than second threshold；If it is not, then entering
The third power module；If so, into power supply module；
The power supply module, for being that the energy storage device charges using bulk power system and being that the bus discloses and institute
State the corresponding supply voltage of unified bus voltage.
Optionally, first analysis module includes:
Decomposition unit obtains wavelet coefficient for decomposing using wavelet analysis method to the sampled data；
Reconfiguration unit carries out three layers of progressive reconstruct to the wavelet coefficient for invocation target function, obtains reconstruct data；
Judging unit, for judging whether the absolute value at number of targets strong point in the reconstruct data is greater than third threshold value, and
Whether the absolute value of the data point of adjacent reconstruct data is exceeded；If more than the third threshold value and exceed the adjacent reconstruct
The absolute value of the data point of data, then the number of targets strong point is the distortion point.
Third, the embodiment of the invention discloses a kind of control equipment for micro-grid system median generatrix voltage, comprising:
Memory, for storing computer program；
Processor, for executing the computer program stored in the memory to realize that any of the above mentioned is used for
The step of control method of micro-grid system median generatrix voltage.
A kind of control method for micro-grid system median generatrix voltage disclosed by the embodiments of the present invention, to micro-capacitance sensor system
After the voltage signal of busbar voltage in system carries out continuous acquisition, collected sampled data is analyzed with predefined rule
Determine the distortion point in sampled data, after finding distortion point, the busbar voltage of the distortion point is beyond normal floating range
The first abnormal busbar voltage, as long as calculate the first abnormal busbar voltage and unified bus voltage the first difference can with for
The bus of micro-grid system provides voltage corresponding with the first difference.And use sagging control first in the prior art that can not examine
The distortion point is measured, second cannot also be provided for the busbar voltage that the distortion point is bus.Therefore, using we
Case has carried out stability control to busbar voltage, has avoided micro-capacitance sensor system when the float value of busbar voltage exceeds normal range (NR)
Load in system breaks down.In addition, the embodiment of the invention also discloses a kind of controls for micro-grid system median generatrix voltage
Device processed and equipment, effect are as above.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of control method stream for micro-grid system median generatrix voltage disclosed in the first embodiment of the invention
Journey schematic diagram；
Fig. 2 is a kind of control method stream for micro-grid system median generatrix voltage disclosed in second of embodiment of the invention
Journey schematic diagram；
Fig. 3 is a kind of control method stream for micro-grid system median generatrix voltage disclosed in the third embodiment of the invention
Journey schematic diagram；
Fig. 4 is a kind of control device structural representation for micro-grid system median generatrix voltage disclosed by the embodiments of the present invention
Figure；
Fig. 5 is that a kind of control device structure for micro-grid system median generatrix voltage disclosed by the embodiments of the present invention is illustrated
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of for the control method of micro-capacitance sensor analogue system median generatrix voltage, device and sets
It is standby, when the float value of busbar voltage exceeds normal range (NR), stability control is carried out to busbar voltage, has avoided micro-capacitance sensor system
Load in system breaks down.
Referring to Figure 1, Fig. 1 is a kind of for micro-grid system median generatrix voltage disclosed in the first embodiment of the invention
Control method flow diagram, this method comprises:
S101: continuous sampling is carried out to the voltage signal of the busbar voltage in micro-grid system, obtains sampled data.
Specifically, when carrying out continuous sampling to the voltage signal of the busbar voltage in micro-grid system, being adopted in the present embodiment
Sample frequency can be 2000HZ, it is contemplated that calculation amount and calculate cumbersome the problem of spending, the data point present invention in sampled data
Embodiment is chosen as 80, be directed to data point choose can also according to the periodic regularity of the voltage signal of busbar voltage into
Row is adjusted flexibly.
S102: sampled data is analyzed with predefined rule to determine the distortion point in sampled data.
Specifically, after carrying out continuous sampling to the voltage signal of the busbar voltage in micro-grid system, including multiple samplings
Data point contains the data point that bus voltage value is floated in the normal range in each sampled data points, also contains bus
Voltage value exceeds the data point (distortion point i.e. in the embodiment of the present invention) of normal floating range, wherein the number of distortion point can
Think one or more.Wavelet analysis method, least square method etc., data analysis can be used when analyzing sampled data
Principle and technology may refer to the prior art.
It can be wavelet analysis method to sampled data, below by wavelet analysis method of the invention real in the embodiment of the present invention
The application applied in example is illustrated:
Sampled data is decomposed first with wavelet analysis method, obtains wavelet coefficient.
Specifically, wavelet analysis method can be db5 wavelet analysis method, it is assumed that the sampled data points in sampled data are 80
It is a, then (decomposition principle may refer to the prior art) is decomposed to sampled data using wavelet analysis method, obtains 80 small echos
Coefficient.
Then invocation target function carries out three layers of progressive reconstruct to wavelet coefficient, obtains reconstruct data.
Specifically, three layers of progressive reconstruct are the wavelet coefficient progress high frequency reconstruction decomposed to sampled data, for example,
80 wavelet coefficients that sampled data is decomposed first carry out third layer reconstruct, carry out second again after the completion of third layer reconstruct
Layer reconstruct finally carries out first layer reconstruct, objective function can be wrcoef function after the completion of second layer reconstruct.
Secondly, judging whether the absolute value for reconstructing number of targets strong point in data is greater than third threshold value, and whether beyond adjacent
Reconstruct data in data point absolute value.
Specifically, the data point for reconstructing data middle section is in general more representative after obtaining reconstruct data, it can
To remove the data point of the head and the tail of reconstruct data, taking the data point of middle section is number of targets strong point, for example, obtained reconstruct number
Include 80 data points in, 10 data points of stem and 10 data points of removal tail portion can be removed, retain middle part
60 data points (number of targets strong point) divided.It whether is distortion point to it by taking a number of targets strong point in 60 data points as an example
It is illustrated.
Number of targets strong point first determines whether the absolute value of the value at number of targets strong point is greater than there are two adjacent data points
Third threshold value, then judges whether the absolute value of the value at number of targets strong point exceeds the absolute value of its two adjacent data point
(in order to improve the discrimination of distortion point, the data point at left and right sides of number of targets strong point can be selected as multiple as adjacent data
Point), if the value at number of targets strong point is greater than third threshold value and meets the condition of the absolute value beyond adjacent data point simultaneously,
Illustrate that the number of targets strong point is that (the corresponding busbar voltage of distortion point is the first abnormal bus beyond normal floating range to distortion point
Voltage).
In addition, the data point present invention of the busbar voltage in normal floating range for data point in sampled data is implemented
Example is known as voltage floating data point (voltage floating data point can also be determined by wavelet analysis method), voltage floating data
The corresponding busbar voltage embodiment of the present invention of point is known as the second abnormal busbar voltage, can after obtaining the second abnormal busbar voltage
It is the mother in micro-grid system by energy storage device to calculate the second difference of the second abnormal busbar voltage and unified bus voltage
Line provides voltage (the specific voltage offer process for providing principle and may refer to distortion point) corresponding with the second difference.
S103: the first difference of the first abnormal busbar voltage and unified bus voltage is calculated.
S104: voltage corresponding with the first difference is provided for the bus in micro-grid system by energy storage device.
Specifically, when the first abnormal busbar voltage is greater than unified bus voltage, the first difference is positive in the present embodiment,
Illustrate that micro-grid system median generatrix voltage exceeds unified bus voltage at this time, energy storage device is needed (can to fill for batteries to store energy
Set) absorb extra voltage energy.When the first abnormal busbar voltage is less than unified bus voltage, the first difference is negative, explanation
Micro-grid system median generatrix voltage is lower than unified bus voltage at this time, and energy storage device (can be batteries to store energy device) be needed to mend
Fill extra voltage energy.
A kind of control method for micro-grid system median generatrix voltage disclosed in the first embodiment of the invention, to micro-
After the voltage signal of busbar voltage in network system carries out continuous acquisition, with predefined rule to collected sampled data into
The distortion point in sampled data is determined in row analysis, and after finding distortion point, the busbar voltage of the distortion point is beyond normal floating
The abnormal busbar voltage of the first of dynamic range, as long as calculating the first difference of the first abnormal busbar voltage and unified bus voltage just
Voltage corresponding with the first difference can be provided for the bus of micro-grid system.And use sagging control first in the prior art
It can not detect the distortion point, second cannot also be provided for the busbar voltage that the distortion point is bus.Therefore, it uses
This programme has carried out stability control to busbar voltage, has avoided micro- electricity when the float value of busbar voltage exceeds normal range (NR)
Load in net system breaks down.
When the energy supply voltage for the power supply device connecting in micro-grid system with bus is well below unified bus voltage, it is
Timely busbar voltage is compensated, the present invention provides second embodiments, refer to Fig. 2, and Fig. 2 is the present invention second
A kind of control method flow diagram for micro-grid system median generatrix voltage disclosed in kind embodiment, this method comprises:
S101: continuous sampling is carried out to the voltage signal of the busbar voltage in micro-grid system, obtains sampled data.
S102: sampled data is analyzed with predefined rule to determine the distortion point in sampled data.
S103: the first difference of the first abnormal busbar voltage and unified bus voltage is calculated.
S201: whether the absolute value for judging the first difference is more than first threshold.If so, into S202, if it is not, then entering
S104。
Specifically, in the present embodiment, when the power supply device in micro-grid system (can be PV blower, solar energy energy supply dress
Set, natural gas power supply device) when being the voltage wretched insufficiency that bus provides, reality that unified bus voltage and power supply device provide
Busbar voltage gap is larger (actual bus voltage is far below unified bus voltage), i.e., the absolute value of the first difference is more than the first threshold
Value (first threshold can determine based on practical experience), at this point it is possible to execute step S202.
S202: the power supply device connecting in micro-grid system with bus is closed.
S203: power supply electricity corresponding with unified bus voltage is provided for the bus in micro-grid system by energy storage device
Pressure.
It the use of energy storage device is bussed supply to support to connect with bus specifically, power supply device can be disconnected at this time
Load uses energy demand, and the voltage and unified bus voltage that energy storage device provides at this time are of substantially equal.
S104: voltage corresponding with the first difference is provided for the bus in micro-grid system by energy storage device.
A kind of control method for micro-grid system median generatrix voltage disclosed in second of embodiment of the invention, in addition to tool
Have outside beneficial effect possessed by the first embodiment, the energy supply voltage for the power supply device being connect in micro-grid system with bus
When well below unified bus voltage, timely busbar voltage is compensated, avoid for access bus load just
Often operation has an impact.
When the energy storage surplus of energy storage device is not enough to provide the unified bus voltage of micro-grid system median generatrix, in order to
It avoids impacting the normal operation of load side, the present invention provides the third embodiments, refer to Fig. 3, and Fig. 3 is the present invention
A kind of control method flow diagram for micro-grid system median generatrix voltage, this method packet disclosed in the third embodiment
It includes:
S101: continuous sampling is carried out to the voltage signal of the busbar voltage in micro-grid system, obtains sampled data.
S102: sampled data is analyzed with predefined rule to determine the distortion point in sampled data.
S103: the first difference of the first abnormal busbar voltage and unified bus voltage is calculated.
S201: whether the absolute value for judging the first difference is more than first threshold, if so, enter step S202, if it is not, then into
Enter step S104.
S202: the power supply device connecting in micro-grid system with bus is closed.
S301: whether the energy surplus for detecting energy storage device is less than second threshold, if so, S302 is entered step, if
It is no, then enter step S203.
S302: being charged using bulk power system for energy storage device and provides power supply corresponding with unified bus voltage for bus
Voltage.
Specifically, in the present embodiment, when power supply device and energy storage device are all not enough to provide the energy to micro-grid system,
It then needs to open bulk power system, providing unified bus voltage by bulk power grid access bus (can be according to the load of access bus
It is determined).The size of second threshold can also determine based on practical experience.
S203: power supply electricity corresponding with unified bus voltage is provided for the bus in micro-grid system by energy storage device
Pressure.
S104: voltage corresponding with the first difference is provided for the bus in micro-grid system by energy storage device.
A kind of control method for micro-grid system median generatrix voltage that the third embodiment of the invention provides, in addition to tool
Have outside beneficial effect possessed by the first embodiment and second of embodiment, is not enough to mention in the energy storage surplus of energy storage device
For micro-grid system median generatrix unified bus voltage when, avoid and the normal operation of load side impacted.
Fig. 4 is referred to, Fig. 4 is that a kind of control for micro-grid system median generatrix voltage disclosed by the embodiments of the present invention fills
Set structural schematic diagram, comprising:
Sampling module 401 carries out continuous sampling for the voltage signal to the busbar voltage in micro-grid system, is adopted
Sample data；
First analysis module 402, for being analyzed sampled data with predefined rule to determine institute in sampled data
Some distortion points, the corresponding busbar voltage of distortion point are the first abnormal busbar voltage beyond normal floating range；
First computing module 403, for calculating the first difference of the first abnormal busbar voltage and unified bus voltage；
First power module 404, for being provided and the first difference pair by energy storage device for the bus in micro-grid system
The voltage answered.
A kind of control device for micro-grid system median generatrix voltage disclosed by the embodiments of the present invention, to micro-capacitance sensor system
After the voltage signal of busbar voltage in system carries out continuous acquisition, collected sampled data is analyzed with predefined rule
Determine the distortion point in sampled data, after finding distortion point, the busbar voltage of the distortion point is beyond normal floating range
The first abnormal busbar voltage, as long as calculate the first abnormal busbar voltage and unified bus voltage the first difference can with for
The bus of micro-grid system provides voltage corresponding with the first difference.And use sagging control first in the prior art that can not examine
The distortion point is measured, second cannot also be provided for the busbar voltage that the distortion point is bus.Therefore, using we
Case has carried out stability control to busbar voltage, has avoided micro-capacitance sensor system when the float value of busbar voltage exceeds normal range (NR)
Load in system breaks down.
Based on the above embodiment, as optional embodiment, further includes:
Second analysis module, for being analyzed with predefined rule sampled data, to determine voltage in sampled data
Floating data point, the corresponding busbar voltage of voltage floating data point are the second abnormal busbar voltage in normal floating range；
Second computing module, for calculating the second difference of the second abnormal busbar voltage and unified bus voltage；
Second power module, it is corresponding with the second difference for being provided by energy storage device for the bus in micro-grid system
Voltage.
Based on the above embodiment, as optional embodiment, further includes:
Judgment module, for judging whether the first difference is more than first threshold；If so, into closedown module, if it is not, then
Into third power module；
Closedown module is micro- for closing the power supply device connecting in micro-grid system with bus, and by energy storage device
Bus in network system provides supply voltage corresponding with unified bus voltage；
Third power module, it is corresponding with the first difference for being supplemented by energy storage device for the bus in micro-grid system
Voltage.
Based on the above embodiment, as optional embodiment, further includes:
Whether detection module, the energy surplus for detecting energy storage device are less than second threshold；If it is not, then entering third
Power module；If so, into power supply module；
Power supply module, for being energy storage device charging using bulk power system and being that bus discloses and unified bus voltage pair
The supply voltage answered.
Based on the above embodiment, as optional embodiment, the first analysis module 402 includes:
Decomposition unit obtains wavelet coefficient for decomposing using wavelet analysis method to sampled data；
Reconfiguration unit carries out three layers of progressive reconstruct to wavelet coefficient for invocation target function, obtains reconstruct data；
Judging unit, for judging whether the absolute value for reconstructing number of targets strong point in data is greater than third threshold value, and whether
The absolute value of data point beyond adjacent reconstruct data；If more than third threshold value and beyond the data point of adjacent reconstruct data
Absolute value, then number of targets strong point be distortion point.
Fig. 5 is referred to, Fig. 5 is that a kind of control for micro-grid system median generatrix voltage disclosed by the embodiments of the present invention is set
Standby structural schematic diagram, comprising:
Memory 501, for storing computer program；
Processor 502, for executing the computer program stored in memory to realize what any of the above embodiment was mentioned
The step of control method for micro-grid system median generatrix voltage.
The disclosed control equipment for being used for micro-grid system median generatrix voltage of the present embodiment, since processor tune can be passed through
The computer program stored with memory is realized as disclosed in above-mentioned any embodiment for micro-grid system median generatrix voltage
The step of control method, so this control equipment is with same with the above-mentioned control method for micro-grid system median generatrix voltage
Actual effect.
Above to it is disclosed in the present application it is a kind of for the control method of micro-capacitance sensor analogue system median generatrix voltage, device and
Equipment is described in detail.Specific examples are used herein to illustrate the principle and implementation manner of the present application, with
The explanation of upper embodiment is merely used to help understand the present processes and its core concept.It should be pointed out that being led for this technology
For the those of ordinary skill in domain, under the premise of not departing from the application principle, can also to the application carry out it is several improvement and
Modification, these improvement and modification are also fallen into the protection scope of the claim of this application.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration
?.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811572444.7A CN109659944A (en) | 2018-12-21 | 2018-12-21 | A kind of control method and device for micro-capacitance sensor analogue system median generatrix voltage |
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| CN201811572444.7A CN109659944A (en) | 2018-12-21 | 2018-12-21 | A kind of control method and device for micro-capacitance sensor analogue system median generatrix voltage |
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| CN118763669A (en) * | 2024-09-05 | 2024-10-11 | 山东赛马力发电设备有限公司 | A microgrid double busbar complementary energy supply system with balanced power consumption |
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