CN104836247B - Realize the light storage micro-grid system of stored energy capacitance dynamic optimization - Google Patents

Realize the light storage micro-grid system of stored energy capacitance dynamic optimization Download PDF

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Publication number
CN104836247B
CN104836247B CN201510254781.1A CN201510254781A CN104836247B CN 104836247 B CN104836247 B CN 104836247B CN 201510254781 A CN201510254781 A CN 201510254781A CN 104836247 B CN104836247 B CN 104836247B
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energy
storage battery
power
capacity
photovoltaic
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CN104836247A (en
Inventor
王玮
张尚腾
吴学智
曾国宏
刘平竹
孟顺
刘德龙
朱海波
张传刚
李国波
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INNOVATION TECHNOLOGY CENTER OF BEIJING JIAOTONG UNIVERSITY
State Grid Corp of China SGCC
State Grid Jilin Electric Power Corp
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INNOVATION TECHNOLOGY CENTER OF BEIJING JIAOTONG UNIVERSITY
State Grid Corp of China SGCC
State Grid Jilin Electric Power Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The embodiments of the invention provide a kind of light for realizing stored energy capacitance dynamic optimization to store up micro-grid system.Wherein, the demand data for power output data and the load power prediction that stored energy capacitance dynamic optimization module is predicted according to photovoltaic power, ratio value between emergency service spare capacity and flat volatility capacity is calculated using set algorithm, ratio value is transferred to energy storage battery management system by DSP control module.Energy storage battery management system is adjusted to the emergency service spare capacity in the energy-storage battery and flat volatility capacity, the ratio between the emergency service spare capacity after adjustment and flat volatility capacity is met the ratio value.The embodiment of the present invention can store up the stored energy capacitance of micro-grid system with dynamic optimization light, improve the energy storage utilization rate of light storage micro-grid system, on the premise of emergency service is ensured, suppress the power swing of grid entry point to greatest extent, be favorably improved utilization and the saving energy and decreasing loss of regenerative resource.

Description

Realize the light storage micro-grid system of stored energy capacitance dynamic optimization
Technical field
The present invention relates to micro-grid system technical field, more particularly to a kind of light storage microgrid for realizing stored energy capacitance dynamic optimization System.
Background technology
Often through the smooth grid entry point power swing of configuration energy-storage battery in micro-grid system, power network is improved to micro-grid system Receiving ability.A part of capacity of energy-storage battery is used as the capacity of emergency service, another part capacity in light storage micro-grid system Power swing for smooth grid entry point.However, above-mentioned emergency service spare capacity and flat volatility capacity under normal circumstances Ratio has just immobilized at the beginning of design, causes emergency service spare capacity bigger than normal or less than normal, the capacity of whole energy-storage battery It is not fully utilized, whole efficiency is relatively low.
The content of the invention
The embodiment provides a kind of light for realizing stored energy capacitance dynamic optimization to store up micro-grid system, to realize to light The stored energy capacitance for storing up the energy-storage battery in micro-grid system carries out dynamic optimization.
To achieve these goals, this invention takes following technical scheme.
A kind of light storage micro-grid system for realizing stored energy capacitance dynamic optimization, including:Energy-storage battery, energy-storage battery management system System, prediction data acquisition module, stored energy capacitance dynamic optimization module and DSP control module;
Described stored energy capacitance dynamic optimization module, for the photovoltaic transmitted according to the prediction data acquisition module The demand data of power output data and the load power prediction of power prediction, it is standby to calculate emergency service using set algorithm Ratio value between capacity and flat volatility capacity, the ratio value is transferred to described DSP control module;
Described DSP control module, will for being connected with stored energy capacitance dynamic optimization module, energy storage battery management system The ratio value is transferred to energy storage battery management system;
Energy storage battery management system, for being connected with energy-storage battery, to the standby appearance of emergency service in the energy-storage battery Amount and flat volatility capacity are adjusted, and accord with the ratio between the emergency service spare capacity after adjustment and flat volatility capacity Close the ratio value.
Preferably, described system also includes:Photovoltaic battery panel, photovoltaic DC/DC modules, DC/AC power models;
Described photovoltaic DC/DC modules, for connecting with the photovoltaic battery panel, DSP control module, DC/AC power models Connect, control the electric current of the photovoltaic battery panel to export, the DC voltage that the photovoltaic battery panel exports is adjusted to intermediate dc Voltage class, the DC voltage after adjustment is transferred to the DC/AC power models;
Described DC/AC power models, for being connected with power network, local be supported at grid entry point, after the adjustment DC voltage is converted to alternating voltage, by the AC voltages transmission to the power network, local load;
Described DSP control module, for being connected with the DC/AC power models, control the photovoltaic DC/DC modules, The startup and stopping of DC/AC power models.
Preferably, described system also includes:Energy storage DC/DC modules;
Described energy storage DC/DC modules, for connecting with the energy-storage battery, DC/AC power models and DSP control module Connect, receive the DC voltage of the energy-storage battery output, boosting processing is carried out to the DC voltage, it is straight after boosting is handled Stream voltage is transferred to the DC/AC power models;
Described DC/AC power models, alternating voltage is converted to for the DC voltage after the boosting is handled, by institute AC voltages transmission is stated to the power network, local load;
Described DSP control module, for being connected with the energy storage DC/DC modules, control the energy storage DC/DC modules Start and stop.
Preferably, described DSP control module, it is additionally operable to when the energy-storage battery is in discharge condition, by described Energy storage battery management system monitors the SOC value of the energy-storage battery, if the SOC value is more than the lowest capacity percentage of emergency use During than threshold value, the energy-storage battery continues to discharge;If the SOC value is equal to the lowest capacity percentage threshold of emergency use, Then control the energy storage DC/DC module from service.
Preferably, described photovoltaic battery panel, it is additionally operable to connect with the energy-storage battery, the energy-storage battery is filled Electricity;
Described DSP control module, it is additionally operable to monitor the SOC of the energy-storage battery by the energy storage battery management system Value, if the SOC value is not reaching to given threshold, the photovoltaic battery panel continues to charge to the energy-storage battery, Zhi Daosuo State SOC value and be not reaching to given threshold, control energy storage DC/DC module from service.
Preferably, described photovoltaic battery panel, it is additionally operable to connect with the energy-storage battery, the energy-storage battery is filled Electricity,
Described DSP control module, it is additionally operable to when rushing electric to the energy-storage battery by power network, passes through energy storage electricity Pond management system monitors the SOC value of the energy-storage battery, if the SOC value is not reaching to given threshold, the power network is to institute State energy-storage battery to continue to charge, until the SOC value is not reaching to given threshold, control energy storage DC/DC module from service.
Preferably, described set algorithm includes improved empirical mode decomposition algorithm.
Preferably, the power output data of described photovoltaic power prediction and the demand data of load power prediction include day Gas, longitude and latitude, intensity of sunshine and/or empirical data.
Preferably, when light storage micro-grid system is grid-connected, Pb+PPV=PL+PPower network, wherein PbBe energy-storage battery power it is defeated Go out, PPVIt is the power output of photovoltaic battery panel, PLBe load power demand, PPower networkIt is the power of micro-capacitance sensor injection power network;
When the light stores up micro-grid system off-network, Pb+PPV=PL。
The embodiment of the present invention is held by using energy storage it can be seen from the technical scheme provided by embodiments of the invention described above Dynamic optimization module is measured according to photovoltaic and bearing power prediction data, control be used as in stored energy capacitance emergency service spare capacity and Ratio between flat volatility capacity, the stored energy capacitance of micro-grid system can be stored up with dynamic optimization light, improve light storage micro-grid system Energy storage utilization rate, on the premise of emergency service is ensured, suppress the power swing of grid entry point to greatest extent, being favorably improved can The utilization of the renewable sources of energy and saving energy and decreasing loss.
The additional aspect of the present invention and advantage will be set forth in part in the description, and these will become from the following description Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this For the those of ordinary skill of field, without having to pay creative labor, other can also be obtained according to these accompanying drawings Accompanying drawing.
Fig. 1 is the distribution diagram schematic diagram that a kind of light provided in an embodiment of the present invention stores up stored energy capacitance in micro-grid system, wherein, Flat volatility capacity 1, dynamic emergency service spare capacity 2, minimum emergency service spare capacity 3;
Fig. 2 is the connection knot that a kind of light for realizing stored energy capacitance dynamic optimization provided in an embodiment of the present invention stores up micro-grid system Structure schematic diagram, wherein, photovoltaic battery panel 4, photovoltaic DC/DC modules 5, energy-storage battery 6, energy storage battery management system 7, energy storage DC/ DC modules 8, prediction data acquisition module 9, stored energy capacitance dynamic optimization module 10, DSP (Digital Signal Process, Digital Signal Processing) control module 11, DC/AC power models 12, energy management system 13, local load 14, power network 15 and simultaneously Site 16.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one It is individual ", " described " and "the" may also comprise plural form.It is to be further understood that what is used in the specification of the present invention arranges Diction " comprising " refer to the feature, integer, step, operation, element and/or component be present, but it is not excluded that in the presence of or addition One or more other features, integer, step, operation, element, component and/or their groups.It should be understood that when we claim member Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or there may also be Intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or coupling.Wording used herein "and/or" includes any cell of one or more associated list items and all combined.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art Language and scientific terminology) with the general understanding identical meaning with the those of ordinary skill in art of the present invention.Should also Understand, those terms defined in such as general dictionary, which should be understood that, to be had and the meaning in the context of prior art The consistent meaning of justice, and unless defined as here, will not be with idealizing or the implication of overly formal be explained.
For ease of the understanding to the embodiment of the present invention, done further by taking several specific embodiments as an example below in conjunction with accompanying drawing Explanation, and each embodiment does not form the restriction to the embodiment of the present invention.
The light that stored energy capacitance dynamic optimization is realized the embodiments of the invention provide a kind of stores up micro-grid system, the energy in the system Stored energy capacitance dynamic optimization module in amount control system is controlled and used in stored energy capacitance according to photovoltaic and bearing power prediction data Make the ratio between emergency service spare capacity and flat volatility capacity, more fully utilize energy-storage battery.Specifically, It is that one stored energy capacitance dynamic optimization module of setting, the module are predicted according to photovoltaic power in the control system of energy accumulation current converter Power output and load power prediction demand, using improved EMD (EmpiricalModeDecomposition, experience Mode decomposition) algorithm determines the ratio that is used as in energy-storage battery between emergency service spare capacity and flat volatility capacity.
In a kind of light storage micro-grid system provided in an embodiment of the present invention stored energy capacitance distribution diagram schematic diagram as shown in figure 1, Wherein, flat volatility capacity 1, dynamic emergency service spare capacity 2, minimum emergency service spare capacity 3.Total appearance of energy-storage system Amount is made up of flat volatility capacity 1 and emergency service spare capacity, and wherein emergency service spare capacity is again by dynamic emergency service Spare capacity 2 and minimum emergency service spare capacity 3 are formed.On the premise of total capacity is certain, according to different condition, energy storage is held Dynamic optimization module is measured to determine using improved EMD (empirical mode decomposition, EmpiricalModeDecomposition) algorithm The position of dotted line in figure is adjusted, that is, adjusts the capacity ratio of the capacity and flat volatility for emergency use.It is certain in total capacity On the premise of, the utilization rate of energy can be improved, also ensures that light stores up the reliability of micro-grid system.
A kind of attachment structure of light storage micro-grid system for realizing stored energy capacitance dynamic optimization provided in an embodiment of the present invention is shown Be intended to as shown in Fig. 2 including:Photovoltaic battery panel 4, photovoltaic DC/DC modules 5, energy-storage battery 6, energy storage DC/DC modules 8, energy storage electricity Pond management system 7, prediction data acquisition module 9, stored energy capacitance dynamic optimization module 10, DSP control module 11 and DC/AC power Module 12.Wherein, photovoltaic DC/DC modules 5, energy storage DC/DC modules 8, stored energy capacitance dynamic optimization module 10, DSP control module 11 and DC/AC power models 12 form energy management system 13.
Described stored energy capacitance dynamic optimization module, for the photovoltaic transmitted according to the prediction data acquisition module The demand data of power output data and the load power prediction of power prediction, it is standby to calculate emergency service using set algorithm Ratio value between capacity and flat volatility capacity, the ratio value is transferred to described DSP control module;Described setting Algorithm includes improved empirical mode decomposition algorithm, the power output data of described photovoltaic power prediction and load power prediction Demand data include weather, longitude and latitude, intensity of sunshine and/or empirical data.
Described DSP control module, will for being connected with stored energy capacitance dynamic optimization module, energy storage battery management system The ratio value is transferred to energy storage battery management system;A stored energy capacitance dynamic optimization is connected in the front end of DSP control module Module.Using this connection, the process that stored energy capacitance optimizes is separated, reduces the operand of DSP control module, protects simultaneously Demonstrate,prove the correctness of stored energy capacitance dynamic optimization algorithm computing.
Described energy storage battery management system, for being connected with energy-storage battery, to the emergency service in the energy-storage battery Spare capacity and flat volatility capacity are adjusted, and are made between the emergency service spare capacity after adjustment and flat volatility capacity Ratio meets the ratio value.
Further, described photovoltaic DC/DC modules, for the photovoltaic battery panel, DSP control module, DC/AC work( Rate module connect, control the electric current of the photovoltaic battery panel to export, by the DC voltage that the photovoltaic battery panel exports adjust to Middle dc voltage grade, the DC voltage after adjustment is transferred to the DC/AC power models;
Described DC/AC power models, for being connected with power network, local be supported at grid entry point, after the adjustment DC voltage is converted to alternating voltage, by the AC voltages transmission to the power network, local load;
Described DSP control module, for being connected with the DC/AC power models, control the photovoltaic DC/DC modules, The startup and stopping of DC/AC power models.
Further, described energy storage DC/DC modules, for being controlled with the energy-storage battery, DC/AC power models and DSP Molding block connects, and receives the DC voltage of the energy-storage battery output, boosting processing is carried out to the DC voltage, at boosting DC voltage after reason is transferred to the DC/AC power models;
Described DC/AC power models, alternating voltage is converted to for the DC voltage after the boosting is handled, by institute AC voltages transmission is stated to the power network, local load;
Described DSP control module, for being connected with the energy storage DC/DC modules, control the energy storage DC/DC modules Start and stop.
Further, described DSP control module, it is additionally operable to when energy-storage battery is individually powered to local load;Or storage Energy battery is powered to local load simultaneously with photovoltaic battery panel, when energy-storage battery is in discharge condition, passes through the energy-storage battery Management system monitors SOC (State of Charge, state-of-charge) value of the energy-storage battery, if the SOC value is more than promptly During standby lowest capacity percentage threshold, the energy-storage battery continues to discharge;If the SOC value is equal to the minimum of emergency use During volume percent threshold value, then the energy storage DC/DC module from service is controlled.
Further, described photovoltaic battery panel, it is additionally operable to connect with the energy-storage battery, the energy-storage battery is carried out Charging;
Described DSP control module, it is additionally operable to monitor the SOC of the energy-storage battery by the energy storage battery management system Value, if the SOC value is not reaching to given threshold, the photovoltaic battery panel continues to charge to the energy-storage battery, Zhi Daosuo State SOC value and be not reaching to given threshold, control energy storage DC/DC module from service.If photovoltaic battery panel can also generate electricity, by photovoltaic Cell panel electricity can be connected to the grid through photovoltaic DC/DC modules and DC/AC power models.When photovoltaic battery panel conveys to power network During energy, energy-storage battery is not involved in work.DSP control module controls the Working mould of photovoltaic DC/DC modules and DC/AC power models Formula, electric energy is provided to power network.
Further, described photovoltaic battery panel, it is additionally operable to connect with the energy-storage battery, the energy-storage battery is carried out Charging,
Described DSP control module, it is additionally operable to when rushing electric to the energy-storage battery by power network, passes through energy storage electricity Pond management system monitors the SOC value of the energy-storage battery, if the SOC value is not reaching to given threshold, the power network is to institute State energy-storage battery to continue to charge, until the SOC value is not reaching to given threshold, control energy storage DC/DC module from service.
Further, under grid-connected conditions, Pb+PPV=PL+PPower network, wherein PbIt is the power output of energy-storage battery, PPVIt is light Lie prostrate the power output of cell panel, PLBe load power demand, PPower networkIt is the power of micro-capacitance sensor injection power network, it is specified that micro-capacitance sensor enters It is positive direction to enter power network.It is assumed that the power invariability of micro-grid system and power network, the target of power smooth is met.If PPV>PL+ PPower network, the preferential power demand for meeting local load and power network of the output of the power of photovoltaic, if also unnecessary, energy-storage battery fills Electricity;If PPV<PL+PPower network, then discharged by energy-storage battery, to supplement the deficiency of photovoltaic generation;In the case of two kinds, it is required to stabilize simultaneously The fluctuation of site power, and then it is big for the stored energy capacitance of flat volatility to need stored energy capacitance dynamic optimization module to optimize It is small.In the case of off-network, Pb+PPV=PL, the power output of energy-storage battery then smooth photovoltaic battery panel, stored energy capacitance dynamic optimization Module must also optimize the stored energy capacitance size for flat volatility.
In the case of grid-connected and off-network, stored energy capacitance dynamic optimization module 10 is according to improved EMD (empirical mode decomposition) Algorithm completes the optimization of stored energy capacitance, determines the ratio between emergency service spare capacity and flat volatility capacity.Consider energy storage The charging and discharging state of battery 6, DSP control module 11 control photovoltaic DC/DC modules 5, energy storage DC/DC modules 8, DC/AC power moulds The work of block 12, ensure that the SOC of energy-storage battery 6 floats between the emergency service spare capacity and total capacity of minimum.
In summary, the embodiment of the present invention is pre- according to photovoltaic and bearing power by using stored energy capacitance dynamic optimization module Data are surveyed, control the ratio being used as in stored energy capacitance between emergency service spare capacity and flat volatility capacity, can be dynamically excellent Change the stored energy capacitance of light storage micro-grid system, improve the energy storage utilization rate of light storage micro-grid system, on the premise of emergency service is ensured, Suppress the power swing of grid entry point to greatest extent, be favorably improved utilization and the saving energy and decreasing loss of regenerative resource.
One of ordinary skill in the art will appreciate that:Accompanying drawing is the schematic diagram of one embodiment, module in accompanying drawing or Flow is not necessarily implemented necessary to the present invention.
As seen through the above description of the embodiments, those skilled in the art can be understood that the present invention can Realized by the mode of software plus required general hardware platform.Based on such understanding, technical scheme essence On the part that is contributed in other words to prior art can be embodied in the form of software product, the computer software product It can be stored in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are causing a computer equipment (can be personal computer, server, either network equipment etc.) performs some of each embodiment of the present invention or embodiment Method described in part.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Especially for device or For system embodiment, because it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to method The part explanation of embodiment.Apparatus and system embodiment described above is only schematical, wherein the conduct The unit that separating component illustrates can be or may not be it is physically separate, can be as the part that unit is shown or Person may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can root Factually border needs to select some or all of module therein realize the purpose of this embodiment scheme.Ordinary skill Personnel are without creative efforts, you can to understand and implement.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in, It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims It is defined.

Claims (2)

  1. A kind of 1. light storage micro-grid system for realizing stored energy capacitance dynamic optimization, it is characterised in that including:Energy-storage battery, energy storage electricity Pond management system, prediction data acquisition module, stored energy capacitance dynamic optimization module, DSP control module, photovoltaic battery panel, photovoltaic DC/DC modules, DC/AC power models and energy storage DC/DC modules;The total capacity of the energy-storage battery is by flat volatility capacity and tightly Anxious power supply spare capacity is formed, and wherein emergency service spare capacity is again by dynamic emergency service spare capacity and minimum emergency service Spare capacity is formed;Described stored energy capacitance dynamic optimization module, for being transmitted according to the prediction data acquisition module Photovoltaic power prediction power output data and load power prediction demand data, using improved empirical mode decomposition calculate Method calculates the ratio value between emergency service spare capacity and flat volatility capacity, the ratio value is transferred to described DSP control module;The power output data of described photovoltaic power prediction and the demand data of load power prediction include weather, Longitude and latitude, intensity of sunshine and/or empirical data;
    Described DSP control module, for being connected with stored energy capacitance dynamic optimization module, energy storage battery management system, by described in Ratio value is transferred to energy storage battery management system;It is additionally operable to control photovoltaic DC/DC modules, energy storage DC/DC modules, DC/AC power The work of module, when the energy-storage battery is in discharge condition, the energy storage is monitored by the energy storage battery management system The SOC value of battery, if the SOC value is more than the lowest capacity percentage threshold of emergency use, the energy-storage battery continues to put Electricity;If the SOC value is equal to the lowest capacity percentage threshold of emergency use, the energy storage DC/DC modules are controlled to stop Work;Ensure that the SOC of energy-storage battery floats between the emergency service spare capacity and total capacity of minimum;
    Energy storage battery management system, for being connected with energy-storage battery, to the emergency service spare capacity in the energy-storage battery and Flat volatility capacity is adjusted, and the ratio between the emergency service spare capacity after adjustment and flat volatility capacity is met institute State ratio value;
    Described photovoltaic DC/DC modules, for being connected with the photovoltaic battery panel, DSP control module, DC/AC power models, control The electric current output of the photovoltaic battery panel is made, the DC voltage that the photovoltaic battery panel exports is adjusted to middle dc voltage etc. Level, the DC/AC power models are transferred to by the DC voltage after adjustment;
    Described DC/AC power models, for being connected with power network, local be supported at grid entry point, by the direct current after the adjustment Voltage conversion is alternating voltage, by the AC voltages transmission to the power network, local load;
    Described DSP control module, for being connected with the DC/AC power models, control the photovoltaic DC/DC modules, DC/AC The startup and stopping of power model;
    Described energy storage DC/DC modules, for being connected with the energy-storage battery, DC/AC power models with DSP control module, connect The DC voltage of the energy-storage battery output is received, boosting processing is carried out to the DC voltage, the direct current after boosting is handled Pressure is transferred to the DC/AC power models;
    Described DC/AC power models, alternating voltage is converted to for the DC voltage after the boosting is handled, by the friendship Stream voltage is transferred to the power network, local load;
    Described DSP control module, for being connected with the energy storage DC/DC modules, control the startup of the energy storage DC/DC modules And stopping;
    Described photovoltaic battery panel, it is additionally operable to connect with the energy-storage battery, the energy-storage battery is charged;
    Described DSP control module, it is additionally operable to monitor the SOC value of the energy-storage battery by the energy storage battery management system, If the SOC value is not reaching to given threshold, the photovoltaic battery panel continues to charge to the energy-storage battery, until described SOC value is not reaching to given threshold, controls energy storage DC/DC module from service;
    Described photovoltaic battery panel, it is additionally operable to connect with the energy-storage battery, the energy-storage battery is charged,
    Described DSP control module, it is additionally operable to, when charging to the energy-storage battery by power network, pass through the energy-storage battery Management system monitors the SOC value of the energy-storage battery, if the SOC value is not reaching to given threshold, the power network is to described Energy-storage battery continues to charge, until the SOC value is not reaching to given threshold, control energy storage DC/DC module from service.
  2. 2. the light storage micro-grid system according to claim 1 for realizing stored energy capacitance dynamic optimization, it is characterised in that:
    When light storage micro-grid system is grid-connected, Pb+PPV=PL+PPower network, wherein PbIt is the power output of energy-storage battery, PPVIt is photovoltaic The power output of cell panel, PLBe load power demand, PPower networkIt is the power of micro-capacitance sensor injection power network;
    When the light stores up micro-grid system off-network, Pb+PPV=PL
CN201510254781.1A 2015-05-18 2015-05-18 Realize the light storage micro-grid system of stored energy capacitance dynamic optimization Expired - Fee Related CN104836247B (en)

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