CN104009489B - A kind of micro-capacitance sensor management system and its management method - Google Patents
A kind of micro-capacitance sensor management system and its management method Download PDFInfo
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- CN104009489B CN104009489B CN201410216512.1A CN201410216512A CN104009489B CN 104009489 B CN104009489 B CN 104009489B CN 201410216512 A CN201410216512 A CN 201410216512A CN 104009489 B CN104009489 B CN 104009489B
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The present invention relates to a kind of microgrid energy management system and its management method, the system includes being connected respectively to the energy accumulation current converter and photovoltaic DC-to-AC converter of transmission line of electricity, the energy accumulation current converter is connected with energy storage equipment and using the electric energy that the photovoltaic DC-to-AC converter is produced for the energy storage equipment charges, and the energy accumulation current converter includes：For the communication module communicated to connect with the photovoltaic DC-to-AC converter, the sampling module of the unit for electrical property parameters for obtaining the energy storage equipment；For the judge module that the unit for electrical property parameters is compared with the predetermined threshold value of the unit for electrical property parameters；And the adjustment module of the communication module is connected to, the adjustment module is used to be adjusted according to the judged result of the judge module power output of the photovoltaic DC-to-AC converter.Management system of the invention and its management method can timely and effectively control the power output of photovoltaic DC-to-AC converter and reduce the complexity of system.
Description
Technical field
The present invention relates to micro-capacitance sensor power domain, more particularly to a kind of energy management method for micro-grid and system.
Background technology
With continuing to develop for economic society, the powerup issue of the areas without electricity such as High aititude mountain area, island is solved, power station is just
Gradually rise.Solve the problems, such as that areas without electricity is powered at present, mainly by building light energy storage off-network Midget plant (referred to as：Micro- electricity
Net, Micro Grid), power station be mainly daytime using new energy photovoltaic generation to electricity consumption regional power supply, unnecessary can use
Energy storage, then evening supply load use.Micro-capacitance sensor as a kind of novel energy networking supply and management system,
The advantage of distributed power generation can be integrated, is coordinated distributed generation unit (micro battery) and (is referred to by power plant, power transformation with bulk power grid
Stand, the power network of the composition such as grid, distribution transformer and low-voltage line road network) between contradiction, make full use of various dispersions
The energy, with reference to local load, energy storage device and associated monitoring and protection device, the novel electric power micro-system of composition.Micro-capacitance sensor
EMS will be monitored to the running status of equipment in micro-capacitance sensor, according to current system ruuning situation and control targe
Corresponding control strategy is formulated, for the feature of exerting oneself of micro battery, micro battery is obtained most using rational energy-optimised technology
It is big to utilize, give full play to micro-capacitance sensor low-carbon (LC), economic advantage.
However, micro-capacitance sensor is related to various energy resources form, and various converter equipments, the load of multiple types, and by day
The influence of gas conversion, it is necessary to need complicated EMS just to can guarantee that the stable operation of micro-capacitance sensor.
In order to manage the stable operation in whole power station, the host computer EMS of a set of complexity is typically necessary.Energy
Amount management system be normally operated on PC, and it is much bigger need by communication modes obtain device data, can manage
Be present plurality of devices in control, micro-capacitance sensor, often exist because of Changes in weather in management, and photovoltaic generation energy management is improper to be caused
There are the failures such as overvoltage, overload because overcharging in power station energy-storage battery, and causes power failure.
The content of the invention
The technical problem to be solved in the present invention is to be operated on PC often for existing micro-capacitance sensor management system
In the presence of because Changes in weather or photovoltaic generation energy management it is improper cause power station energy-storage battery because overshoot occur overvoltage, overload etc. failure
Even result in the defect of power failure, there is provided a kind of microgrid energy management system and its pipe that can guarantee that effective and stabilization management
Reason method.
The technical solution adopted for the present invention to solve the technical problems is：A kind of microgrid energy management system is constructed, is wrapped
The energy accumulation current converter and photovoltaic DC-to-AC converter for being connected respectively to transmission line of electricity are included, the energy accumulation current converter is connected with energy storage equipment and profit
The electric energy produced with the photovoltaic DC-to-AC converter is energy storage equipment charging；The energy accumulation current converter includes：
Communication module, for being communicated to connect with the photovoltaic DC-to-AC converter；
Sampling module, the unit for electrical property parameters for obtaining the energy storage equipment；
Judge module, for the unit for electrical property parameters to be compared with the predetermined threshold value of the unit for electrical property parameters；
And adjustment module, for producing the defeated of the regulation photovoltaic DC-to-AC converter according to the judged result of the judge module
Go out the instruction of power and the instruction is sent to by the photovoltaic DC-to-AC converter by the communication module；
The adjustment module according to the judged result of the judge module by the power output of the photovoltaic DC-to-AC converter at least
Reduce the 30% of present output power.
In microgrid energy management system of the present invention, the sampling module is further included：
Current-voltage sampling unit, charging current and/or charging voltage for obtaining the energy storage equipment；And/or,
Electricity sampling unit, the electricity for obtaining the energy storage equipment.
In microgrid energy management system of the present invention, the predetermined threshold value of the charging current is 0.25C.
In microgrid energy management system of the present invention, the predetermined threshold value of the electricity is the 90% of specified electric quantity.
In microgrid energy management system of the present invention, the communication module is power carrier communication module.
In microgrid energy management system of the present invention, the microgrid energy management system also includes being connected to institute
The monitoring device of photovoltaic DC-to-AC converter and the energy accumulation current converter is stated, the monitoring device is used to record the photovoltaic DC-to-AC converter and institute
State the operation conditions of energy accumulation current converter.
Additionally, present invention also offers a kind of management method of microgrid energy management system, the microgrid energy pipe
Reason system includes being connected respectively to the energy accumulation current converter and photovoltaic DC-to-AC converter of transmission line of electricity, and the energy accumulation current converter is connected with accumulation of energy
The electric energy that device and the utilization photovoltaic DC-to-AC converter are produced is that the energy storage equipment charges；
Wherein, the management method includes；
Communication steps：Communicated to connect with the photovoltaic DC-to-AC converter by the energy accumulation current converter；
Sampling step：The unit for electrical property parameters of the energy storage equipment is obtained by the energy accumulation current converter；
Judge step：By the energy accumulation current converter by the predetermined threshold value of the unit for electrical property parameters and the unit for electrical property parameters
It is compared；
And regulating step：By the energy accumulation current converter, the judged result according to the judgement step produces regulation institute
State the instruction of the power output of photovoltaic DC-to-AC converter and the instruction is sent to the photovoltaic DC-to-AC converter by the communication connection；
The regulating step is further included：
The power output of the photovoltaic DC-to-AC converter is at least reduced current output by the judged result according to the judgement step
The 30% of power.
In the management method of microgrid energy management system of the present invention, the sampling step is further included：
Obtain the charging current and/or charging voltage of the energy storage equipment；And/or,
Obtain the electricity of the energy storage equipment.
In the management method of microgrid energy management system of the present invention, the predetermined threshold value of the charging current is
0.25C；
The predetermined threshold value of the electricity is 90%.
Implement microgrid energy management system of the invention and its management method, have the advantages that：The present invention is logical
Energy accumulation current converter is crossed to the detection of the electrical property of energy storage equipment and is judged, in time the output of control photovoltaic DC-to-AC converter, effectively prevent because
Caused by photovoltaic generation miscarriage the battery pack of energy storage equipment because excessively stream is overcharged caused failure, it is to avoid power failure, while
Compared to it is existing regulated and controled by PC for, the microgrid energy management system and its management method of the application pass through
Energy accumulation current converter is rapider and more stable with the output that the communication link of photovoltaic DC-to-AC converter fetches control photovoltaic DC-to-AC converter.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the system structure diagram of microgrid energy management system according to the preferred embodiment of the invention；
Fig. 2 is the structural representation of the energy accumulation current converter of the microgrid energy management system shown in Fig. 1；
Fig. 3 is the system structure diagram of the microgrid energy management system according to further embodiment of this invention；
Fig. 4 is the schematic flow sheet of the management method of the microgrid energy management system according to the preferred embodiment of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.
Fig. 1 is referred to, is the system structure diagram of the microgrid energy management system according to the preferred embodiment of the present invention.
As Fig. 1 shows, in first preferred embodiment of the invention, microgrid energy management system at least includes being connected respectively to transmission line of electricity
Energy accumulation current converter 30, photovoltaic DC-to-AC converter 20, the energy accumulation current converter 30 is also associated with load 10.Load 10 passes through power network major network
It is connected with energy accumulation current converter 30.Micro-capacitance sensor management system of the invention is primarily adapted for use in light energy storage off-network Midget plant.
With reference to Fig. 1, energy accumulation current converter 30 is connected with energy storage equipment 40, and energy accumulation current converter 30 is produced using photovoltaic DC-to-AC converter 20
Electric energy charge for energy storage equipment 40.Photovoltaic DC-to-AC converter 20 is connected with photovoltaic battery panel 50, and usually, photovoltaic battery panel 50 includes
Multiple solar cell module array, to convert the solar into direct current energy and be collected to photovoltaic DC-to-AC converter 20.Photovoltaic inversion
Device 20 is AC energy by by direct current energy inversion.Photovoltaic battery panel 50 is connected by accessing power network major network with energy accumulation current converter 30
Connect, therefore above-mentioned AC energy finally accesses energy accumulation current converter 30, being converted to direct current energy by the energy accumulation current converter 30 stores
In in the energy storage equipment 40.
Photovoltaic DC-to-AC converter 20 in the present embodiment can be directly connected to by power network major network with load 10, therefore on daytime, light
The AC energy that volt inverter 20 is produced a part of directly can be powered by power network major network to load 10, and unnecessary exchange
Electric energy is then changed and stored in energy storage equipment 40 through energy accumulation current converter 30.And at night, then by energy storage equipment 40 pairs bear
10 are carried to be powered.Especially, energy storage equipment 40 can be energy-storage battery group, and the energy-storage battery group can be 2V/1000A by parameter
240 section lead-acid accumulators concatenation form.In the present embodiment, energy accumulation current converter 30 is communicated to connect with photovoltaic DC-to-AC converter 20, and is led to
The unit for electrical property parameters for crossing energy storage equipment 40 sends the instruction of the power output for adjusting photovoltaic DC-to-AC converter 20 to photovoltaic DC-to-AC converter 20.
With reference to Fig. 2, in first preferred embodiment of the invention, energy accumulation current converter 30 is further included：Communication module
301st, sampling module 302, judge module 303 and adjustment module 304.Wherein, communication module 301 is used to realize energy accumulation current converter
Communication connection between 30 and photovoltaic DC-to-AC converter 20, energy accumulation current converter 30 can be realized to photovoltaic DC-to-AC converter by communication module 301
The control of 20 power output.Especially, the communication module 301 of the present embodiment is power carrier communication module, i.e. this implementation
Photovoltaic DC-to-AC converter 20 realizes communication connection with energy accumulation current converter 30 by power carrier communication technology, and it is not required to set up netting twine, only
Need to be to be capable of achieving data transfer by electric wire, therefore implementation method is simple, transmission data are rapid.It should be appreciated that of the invention
In other non-limiting examples, the communication module 301 can also be but not limited to WIFI wireless communication modules, ZIGBEE and lead to
Letter module, RFC wireless radio-frequency communication modules, RS serial line interfaces or ethernet communication interface etc..
Sampling module 302, is connected to energy storage equipment 40, the unit for electrical property parameters for obtaining energy storage equipment 40.It is described electrical
Energy parameter includes charging current and/or charging voltage and/or electricity.Therefore in an embodiment of the present invention, sampling module 302 enters
One step is included for obtaining the charging current of energy storage equipment 40 and/or the current-voltage sampling unit of charging voltage and for obtaining
Take at least one of electricity sampling unit of charge capacity of energy storage equipment 40.It is above-mentioned by sampling module 302 obtain it is electrical
Energy parameter will be transmitted to judge module 303, and judge module 303 is used for the unit for electrical property parameters is pre- with the unit for electrical property parameters
If threshold value is compared.Judge module 303 is connected to adjustment module 304, judgement of the adjustment module 304 according to judge module 303
Result produces instruction, and the instruction is sent to photovoltaic DC-to-AC converter 20 through communication module 301, and then realizes to photovoltaic DC-to-AC converter 20
Power output adjustment.
Further, the predetermined threshold value of the setting of judge module 303 includes power threshold or charging current threshold value etc., wherein,
Charging current threshold value may be set to 0.25C, current to store when judge module 303 compares show that current charging current is more than 0.25C
The charging current of energy device 40 is excessive, then adjustment module 304 can be entered through communication module 301 to the power output of photovoltaic DC-to-AC converter 20
Row is lowered, and the power output of photovoltaic DC-to-AC converter 20 is at least reduced the 30% of present output power, and adjustment module 304 is inverse to photovoltaic
The practical adjustments amplitude for becoming device 20 can be adjusted according to actual comparative result.
In other non-limiting examples of the invention, the power threshold can be set as the 90% of specified electric quantity.
Whether the electricity of the energy storage equipment 40 obtained by 303 pairs of samplings of judge module exceedes the 90% of specified electric quantity, and control accordingly
The power output of photovoltaic DC-to-AC converter 20.Especially, adjustment module of the invention 304 can to a greater degree be reduced when electricity is bigger
The power output of photovoltaic DC-to-AC converter 20, the reduction amplitude of the power output of the photovoltaic DC-to-AC converter 20 is at least 30%, for example, exist
Detect current electric quantity be specified electric quantity 90% when, the power output of photovoltaic DC-to-AC converter 20 is reduced to present output power
70%, and in current electric quantity for specified electric quantity 100%, the power output of photovoltaic DC-to-AC converter 20 is then reduced to 0.
In other non-limiting examples of the invention, can combined charge electric current and charging voltage realize to current electric quantity
Judgement, such as when the battery pack charging current of energy storage equipment 40 is more than 240*2.35V less than the stagnation pressure of 0.1C and battery pack,
Judge that the charge capacity of current energy storage equipment 40 is excessive, to protect battery pack and extending the service life of battery pack, adjust mould
Block 304 reduces the power output of the photovoltaic DC-to-AC converter 20, and the reduction amplitude of the power output of the photovoltaic DC-to-AC converter 20 is at least
30%.
It is the system structure diagram of the micro-capacitance sensor management system of the second preferred embodiment of the invention with reference to Fig. 3.This reality
Apply in example, the microgrid energy management system includes that photovoltaic DC-to-AC converter 20 as shown in Figure 1, photovoltaic battery panel 50, energy storage become
Stream device 30, energy storage equipment 40 and load 10, also including being connected to the monitoring device 60 of photovoltaic DC-to-AC converter 20 and energy accumulation current converter 30,
The correlation technique feature of above-mentioned photovoltaic DC-to-AC converter 20, photovoltaic battery panel 50, energy accumulation current converter 30, energy storage equipment 40 and load 10 please
With reference to and referring to figs. 1 to Fig. 2 specific descriptions.The monitoring device 60 typically realizes that monitoring device 60 is used for using computer
The operation conditions of record photovoltaic DC-to-AC converter 20 and energy accumulation current converter 30.Compared to existing microgrid energy management system, this reality
The monitoring device 60 of example is applied due to writing function can be used only for, therefore with the requirement of relatively simple soft hardware performance.
Fig. 4 is referred to, is that the flow of the management method of micro-capacitance sensor management system according to the preferred embodiment of the present invention is illustrated
Figure.The concrete structure of the micro-capacitance sensor management system and the micro-capacitance sensor management system identical technology spy described in above-mentioned Fig. 1 to Fig. 2
Levy, therefore not to repeat here.
With reference to Fig. 4, the management method of micro-capacitance sensor management system of the invention starts from step S10, in photovoltaic DC-to-AC converter 20
Micro-capacitance sensor management system of the invention brings into operation when initially entering opto-electronic conversion state.
Then, in step S20, the sampling module 302 being connected with energy storage equipment 40 is joined to the electrical property of energy storage equipment 40
Number carries out detection sampling.The detection of the charging current to energy storage equipment 40 is further included, and/or to the electricity of energy storage equipment 40
Detection.Wherein, during the electricity of detection energy storage equipment 40, can be by volume shared by the current charge capacity of direct detection energy storage equipment
Determine the percentage of electricity, or current charge capacity is obtained by detecting charging current and charging voltage simultaneously.
In step s 30, the unit for electrical property parameters that judge module 303 is obtained sampling module 302 is joined with the electrical property
Whether several predetermined threshold values are compared, and judge current unit for electrical property parameters beyond the predetermined threshold value, when beyond predetermined threshold value,
Trigger the entrance of adjustment module 304 step S40, otherwise return to step S10 and proceed the sampling of unit for electrical property parameters.Specifically,
The predetermined threshold value of the setting of judge module 303 can be the predetermined threshold value of charging current, and such as 0.25C is obtained when being sampled in step S20
Charging current be more than 0.25C when, charging current is excessive, judge module 303 triggering adjustment module 304 adjusted accordingly.
Or, the threshold value of preset charged electricity is the 90% of specified electric quantity in judge module 303, therefore when the acquisition of sampling module 302
When the current electric quantity of energy storage equipment 40 is more than 90%, loss, judge module 303 are caused to energy storage equipment 40 to prevent from overcharging
Triggering adjustment module 304 is responded.
Additionally, in another embodiment of the present invention, when the charging current simultaneously to energy storage equipment 40 of sampling module 302 and
When charging voltage is sampled, judge module 303 can be by judging that electric current knows that current charge capacity is with voltage simultaneously
It is no beyond default power threshold.For example, current charging current is less than optimal charge electric current 0.1C and current charging voltage
More than 240*2.25V (energy storage equipment 40 in the present embodiment chooses the 240 lead accumulator groups for saving 2V/1000A, therefore, fill herein
Piezoelectric voltage is the stagnation pressure of battery pack), then judge predetermined threshold value of the current charge capacity beyond electricity, it is therefore desirable to which triggering is adjusted
Section module 304 carries out next step operation.It should be appreciated that the above-mentioned predetermined threshold value of the application is not limited to above-mentioned 0.25C or volume
Determine 90% of electricity etc., it is also possible to make appropriate adjustment according to actual conditions, therefore not to repeat here.
In step s 40, adjustment module 304 is triggered and then according to the judged result of step S30 to light by judge module 303
Volt inverter 20 sends the instruction of the power output of regulation photovoltaic DC-to-AC converter 20.Judge current charging electricity in judge module 303
In the case that stream and/or charge capacity exceed predetermined threshold value, adjustment module 304 will generate instruction to control photovoltaic DC-to-AC converter 20
Power output.For example, the instruction at least subtracts the power output of the photovoltaic DC-to-AC converter 20 according to the judged result of step S30
The 30% of few present output power.It should be appreciated that the adjustment of power output of the above-mentioned instruction of the invention to photovoltaic DC-to-AC converter 20
Amplitude can turn to change according to the change of corresponding unit for electrical property parameters.
For example, adjustment module of the invention 304 can to a greater degree reduce the defeated of photovoltaic DC-to-AC converter 20 when electricity is bigger
Go out power, the reduction amplitude of the power output of the photovoltaic DC-to-AC converter 20 is at least 30%, for example, be detecting current electric quantity
Specified electric quantity 90% when, the power output of photovoltaic DC-to-AC converter 20 is reduced to the 70% of present output power, and in current electricity
When measuring 100% for specified electric quantity, the power output of photovoltaic DC-to-AC converter 20 is then reduced to 0.
In step s 50, communication module 301 is communicated to connect with photovoltaic DC-to-AC converter 20, the instruction warp that adjustment module 304 is produced
Communication module 301 is transferred to photovoltaic DC-to-AC converter 20, and photovoltaic DC-to-AC converter 20 produces corresponding power output according to the instruction.In this hair
In bright non-limiting example, communication module 301 can be the photovoltaic DC-to-AC converter 20 of power carrier communication module, i.e. this implementation
Communication connection is realized by power carrier communication technology with energy accumulation current converter 30, it is not required to set up netting twine, need to be by electric wire only
Data transfer is capable of achieving, therefore implementation method is simple, transmission data are rapid.It should be appreciated that other are non-limiting of the invention
In embodiment, the communication module 301 can also be but not limited to WIFI wireless communication modules, ZIGBEE communication modules, RFC without
Line radio-frequency communication module, RS serial line interfaces or ethernet communication interface etc..
It should be appreciated that in step S50, the communication connection between photovoltaic DC-to-AC converter 20 and energy accumulation current converter 30 is not only limited
In it is above-mentioned after the step s 40, its can before step S10, or in the arbitrary steps of step S10-S40, or, at this
In all processes of the management method of the micro-capacitance sensor management system of invention, photovoltaic DC-to-AC converter 20 is remained with energy accumulation current converter 30
Communication connection.
In other non-limiting examples of invention, the management method also includes, using monitoring device 60 to photovoltaic
The operation conditions of inverter 20 and energy accumulation current converter 30 is monitored and records.Monitoring device 60 typically uses computer to realize,
Monitoring device 60 is used to record the operation conditions of photovoltaic DC-to-AC converter 20 and energy accumulation current converter 30.Compared to existing microgrid energy
Management system, the monitoring device 60 of the present embodiment due to writing function can be used only for, therefore with relatively simple software and hardware
Performance requirement.
It should be noted that the present invention provides photovoltaic DC-to-AC converter, energy accumulation current converter, the photovoltaic cell of micro-capacitance sensor management system
The principle and flow that connection between plate, energy storage equipment and load and each several part is used are identical with above-mentioned management method,
Therefore the elaborating for each embodiment of the above-mentioned management method to micro-capacitance sensor management system is also applied for micro- electricity of the invention
Network management system.
The present invention is described according to specific embodiment, but it will be understood by those skilled in the art that is not departing from this hair
During bright scope, various change and equivalent can be carried out.Additionally, specific occasion or material to adapt to the technology of the present invention, can be right
The present invention carries out many modifications without deviating from its protection domain.Therefore, the present invention is not limited to specific embodiment disclosed herein,
And including all embodiments for dropping into claims.
Claims (8)
1. a kind of microgrid energy management system, including the energy accumulation current converter (30) and photovoltaic inversion for being connected respectively to transmission line of electricity
Device (20), the energy accumulation current converter (30) is connected with energy storage equipment (40) and the electric energy produced using the photovoltaic DC-to-AC converter (20)
For the energy storage equipment (40) charges, it is characterised in that the energy accumulation current converter (30) includes：
Communication module (301), for being communicated to connect with the photovoltaic DC-to-AC converter (20),
Sampling module (302), the unit for electrical property parameters for obtaining the energy storage equipment (40)；
Judge module (303), for the unit for electrical property parameters to be compared with the predetermined threshold value of the unit for electrical property parameters；
And adjustment module (304), for producing the regulation photovoltaic inversion according to the judged result of the judge module (303)
The instruction is simultaneously sent to the photovoltaic DC-to-AC converter by the instruction of the power output of device (20) by the communication module (301)
(20)；
The adjustment module (304) is according to the judged result of the judge module (303) by the defeated of the photovoltaic DC-to-AC converter (20)
Go out power and at least reduce 30%.
2. microgrid energy management system according to claim 1, it is characterised in that the sampling module (302) enters
Step includes：
Current-voltage sampling unit, charging current and/or charging voltage for obtaining the energy storage equipment (40)；And/or,
Electricity sampling unit, the electricity for obtaining the energy storage equipment (40).
3. microgrid energy management system according to claim 1, it is characterised in that the sampling module (302) enters
Step includes：
Current-voltage sampling unit, charging current and/or charging voltage for obtaining the energy storage equipment (40), the charging
The predetermined threshold value of electric current is 0.25C；And/or,
Electricity sampling unit, the electricity for obtaining the energy storage equipment (40), the predetermined threshold value of the electricity is specified electric quantity
90%.
4. microgrid energy management system according to claim 1, it is characterised in that the communication module (301) is electricity
Power carrier communication module.
5. microgrid energy management system according to claim 1, it is characterised in that the microgrid energy management system
Also include being connected to the monitoring device of the photovoltaic DC-to-AC converter (20) and the energy accumulation current converter (30), the monitoring device is used for
Record the operation conditions of the photovoltaic DC-to-AC converter (20) and the energy accumulation current converter (30).
6. a kind of management method of microgrid energy management system, the microgrid energy management system includes being connected respectively to defeated
The energy accumulation current converter (30) and photovoltaic DC-to-AC converter (20) of electric line, the energy accumulation current converter (30) be connected with energy storage equipment (40) and
The electric energy produced using the photovoltaic DC-to-AC converter (20) is the energy storage equipment (40) charging, it is characterised in that the manager
Method includes；
Communication steps：Communicated to connect with the photovoltaic DC-to-AC converter (20) by the energy accumulation current converter (30)；
Sampling step：The unit for electrical property parameters of the energy storage equipment (40) is obtained by the energy accumulation current converter (30)；
Judge step：By the energy accumulation current converter (30) by the predetermined threshold value of the unit for electrical property parameters and the unit for electrical property parameters
It is compared；
And regulating step：By the energy accumulation current converter (30), the judged result according to the judgement step produces regulation institute
State the instruction of the power output of photovoltaic DC-to-AC converter (20) and to be sent to the photovoltaic inverse by the communication connection by the instruction
Become device (20)；
The regulating step is further included：
The power output of the photovoltaic DC-to-AC converter (20) is at least reduced 30% by the judged result according to the judgement step.
7. the management method of microgrid energy management system according to claim 6, it is characterised in that the sampling step
Further include：
Obtain the charging current and/or charging voltage of the energy storage equipment (40)；And/or,
Obtain the electricity of the energy storage equipment (40).
8. the management method of microgrid energy management system according to claim 6, it is characterised in that the sampling step
Further include：
The charging current and/or charging voltage of the energy storage equipment (40) are obtained, the predetermined threshold value of the charging current is
0.25C；And/or,
The electricity of the energy storage equipment (40) is obtained, the predetermined threshold value of the electricity is the 90% of specified electric quantity.
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| CN107612008A (en) * | 2017-09-13 | 2018-01-19 | 河南省三禾电气有限公司 | Intelligence becomes distribution method and system |
| CN112117759B (en) * | 2020-08-06 | 2022-02-18 | 西安交通大学 | Energy scheduling and communication method, equipment and storage medium for distributed micro-grid system |
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| CN101063891A (en) * | 2006-04-28 | 2007-10-31 | 上海森昌电气科技有限公司 | Device for tracking maximal power point of Solar cell and tracking method thereof |
| CN203387292U (en) * | 2013-08-20 | 2014-01-08 | 珠海兴业绿色建筑科技有限公司 | High-rise building micro power grid |
| CN103595071A (en) * | 2013-11-21 | 2014-02-19 | 国网上海市电力公司 | Energy system of micro-grid |
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| CN101063891A (en) * | 2006-04-28 | 2007-10-31 | 上海森昌电气科技有限公司 | Device for tracking maximal power point of Solar cell and tracking method thereof |
| CN203387292U (en) * | 2013-08-20 | 2014-01-08 | 珠海兴业绿色建筑科技有限公司 | High-rise building micro power grid |
| CN103595071A (en) * | 2013-11-21 | 2014-02-19 | 国网上海市电力公司 | Energy system of micro-grid |
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