CN113315194A - Electric energy distribution method and device - Google Patents

Electric energy distribution method and device Download PDF

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Publication number
CN113315194A
CN113315194A CN202110559215.7A CN202110559215A CN113315194A CN 113315194 A CN113315194 A CN 113315194A CN 202110559215 A CN202110559215 A CN 202110559215A CN 113315194 A CN113315194 A CN 113315194A
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Prior art keywords
power
module
value
power supply
load
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CN202110559215.7A
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Chinese (zh)
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CN113315194B (en
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高原
杨振华
孙正晓
卢久增
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Beijing Hyperstrong Technology Co Ltd
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Beijing Hyperstrong Technology Co Ltd
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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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00036—Charger exchanging data with battery
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application provides an electric energy distribution method and device, and relates to a power supply technology. According to the electric energy distribution method, the power output by the solar power generation module and the state of charge value of the energy storage battery module can be acquired; under the condition that the state of charge value belongs to the first state of charge interval and the output power is greater than the minimum required power of the load power supply module, the power output by the solar power generation module can supply power to the energy storage battery module while providing the power capable of running for the load. Therefore, the value of the power supply power output by the load power supply module and the value of the charging power for charging the energy storage battery module are determined according to the output power and the rated power of the load power supply module. Therefore, the energy storage battery module can have higher energy storage, and the load power supply module outputs higher power supply electric energy for the load, so that the load equipment can operate due to power supply.

Description

Electric energy distribution method and device
Technical Field
The present disclosure relates to power supply technologies, and in particular, to a method and an apparatus for distributing electric energy.
Background
Solar energy is a renewable energy source, and is effectively converted into energy such as chemical energy or electric energy to reduce the use of non-renewable energy sources (such as coal, petroleum, natural gas and the like), so that the solar energy is one of energy-saving and environment-friendly modes. For example, the solar power generation module can be respectively connected with the energy storage battery module and the load power supply module; the energy storage battery module is electrically connected with the load power supply module. Under the condition of solar illumination, the solar power generation module can convert solar energy into electric energy, charge the energy storage battery module and supply power to the load power supply module. And under the condition of no solar illumination, the energy storage battery module discharges to supply power for the load power supply module.
At present, a solar power generation module cannot continuously maintain power for providing high output for two or more power supply objects, because a moment with strong illumination exists in the daytime and a moment with weak illumination also exists. Therefore, the power supply strategy of the solar power generation module for at least two power supply objects is as follows: the power supply method comprises the steps of preferentially supplying power to one power supply object, and supplying power to another power supply object when the power supply object has no power supply requirement. For example, the solar power generation module charges the energy storage battery module and supplies power to the load power supply module in the following manner: under the condition that the energy storage battery module is not fully charged, firstly charging the energy storage battery module; after the energy storage battery module is fully charged, the energy storage battery module is not charged any more, and then the load power supply module is independently powered; thus, the load cannot be normally used when the solar power generation module charges the energy storage battery module. Or, under the condition that the load is not powered off, the load power supply module is powered on first; when the load is powered off, the energy storage battery module is charged again, so that the energy storage battery module may not be fully charged. Furthermore, the output power of the solar power generation module cannot be taken into consideration, so that the energy storage battery module has higher energy storage, and meanwhile, the load power supply module outputs higher power supply electric energy for the load.
Disclosure of Invention
The application provides an electric energy distribution method and device, which are used for solving the problem that when the output power of a solar power generation module is solved, the energy storage battery module cannot be considered to have higher energy storage, and meanwhile, a load power supply module outputs higher power supply electric energy for a load.
In a first aspect, the present application provides an electric energy distribution method, which is applied to a main control device, the main control device is respectively in communication connection with a solar power generation module, an energy storage battery module and a load power supply module, the solar power generation module and the energy storage battery module are respectively electrically connected with the load power supply module, wherein a first switch module is connected between the solar power generation module and the energy storage battery module, a second switch module is connected between the solar power generation module and the load power supply module, and under the condition that the first switch module and the second switch module are both in a closed state, the method includes:
acquiring power output by the solar power generation module and a charge state value of the energy storage battery module;
if the state of charge value belongs to a first state of charge interval and the output power is greater than the minimum required power of the load power supply module, determining the value of the power supply power output by the load power supply module and the value of the charging power for charging the energy storage battery module according to the output power and the rated power of the load power supply module;
and controlling the solar power generation module to charge the energy storage battery module by taking the value of the charging power, and controlling the load power supply module to supply power to the load equipment by taking the value of the power supply power.
In a second aspect, the present application further provides an electric energy distribution device, which is applied to a main control device, the main control device is respectively in communication connection with a solar power generation module, an energy storage battery module and a load power supply module, the solar power generation module and the energy storage battery module are respectively electrically connected with the load power supply module, and the device includes:
the information acquisition unit is used for acquiring the power output by the solar power generation module and the state of charge value of the energy storage battery module;
the information determining unit is used for determining the value of the power supply power output by the load power supply module and the value of the charging power for charging the energy storage battery module according to the output power and the rated power of the load power supply module if the state of charge value belongs to a first state of charge interval and the output power is greater than or equal to the minimum required power of the load power supply module;
and the electric energy distribution unit is used for controlling the solar power generation module to charge the energy storage battery module by taking the value of the charging power and controlling the load power supply module to supply power to the load equipment by taking the value of the power supply power.
In a third aspect, the present application further provides an electronic device, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to execute the instructions to implement the power distribution method as provided in the first aspect of the present application.
In a fourth aspect, the present application further provides a computer-readable storage medium, wherein computer-executable instructions are stored in the computer-readable storage medium, and when executed by a processor, the computer-executable instructions are configured to implement the power distribution method provided in the first aspect of the present application.
In a fifth aspect, the present application also provides a computer program product comprising a computer program which, when executed by a processor, implements the power distribution method as provided in the first aspect of the present application.
According to the electric energy distribution method, the power output by the solar power generation module and the state of charge value of the energy storage battery module can be obtained; under the condition that the state of charge value belongs to the first state of charge interval and the output power is greater than the minimum required power of the load power supply module, the power output by the solar power generation module can supply power to the energy storage battery module while providing the power capable of running for the load. Therefore, the value of the power supply power output by the load power supply module and the value of the charging power for charging the energy storage battery module are determined according to the output power and the rated power of the load power supply module. And finally, controlling the solar power generation module to charge the energy storage battery module by taking the value of the charging power, and controlling the load power supply module to supply power to the load equipment by taking the value of the power supply power. In this way, the energy storage battery module can continuously obtain electric energy in one charging cycle (time period with solar illumination), and meanwhile, the load equipment can operate because of being powered. Therefore, under the condition that the output power of the solar power generation module is greater than the minimum required power of the load power supply module, the energy storage battery module can have higher energy storage, and meanwhile, the load power supply module outputs higher power supply electric energy for the load, so that the load equipment can operate due to being supplied with power.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a circuit module connection block diagram of an electric energy distribution system provided in an embodiment of the present application;
fig. 2 is a flowchart of an electric energy distribution method provided in an embodiment of the present application;
fig. 3 is a schematic diagram of functional units of an electric energy distribution device provided in an embodiment of the present application;
fig. 4 is a block diagram of an electronic device according to an embodiment of the present application.
With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terms referred to in this application are explained first:
solar power generation module: the photovoltaic module can convert solar energy into electric energy, and the DC-DC converter can convert the electric energy converted by the solar energy into electric energy which can be used by a power supply object again.
A load power supply module: including an inverter. The inverter can convert the direct current provided by the solar power generation module into alternating current (generally 220V, 50Hz sine wave) for the load to use.
State of charge value: the ratio of the remaining capacity of the battery after a period of use or long standing without use to the capacity of its fully charged state.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
The application provides an electric energy distribution method applied to a main control device 100. Master device 100 is located in a power distribution system. As shown in fig. 1, in the power distribution system, a main control device 100 is in communication connection with a solar power generation module 101, an energy storage battery module 104 and a load power supply module 105, respectively, and the solar power generation module 101 and the energy storage battery module 104 are electrically connected with the load power supply module 105, respectively. A first switch module 102 is connected between the solar power generation module 101 and the energy storage battery module 104. A second switch module 103 is connected between the solar power generation module 101 and the load power supply module 105. Under the condition that the first switch module 102 and the second switch module 103 are both in the closed state, the solar power generation module 101 may distribute the electric energy to the energy storage battery module 104 and the load power supply module 105 at the same time. The electric energy distribution method provided by the application comprises the following steps:
s21: the main control device 100 obtains the power output by the solar power generation module 101 and the state of charge value of the energy storage battery module 104.
On the one hand, when there is light in the daytime, the power output by the solar power generation module 101 is greater than 0. Therefore, the main control device 100 can acquire the power output by the solar power generation module 101; on the other hand, the solar power generation module 101 includes a power management unit and a storage battery, and the power management unit is configured to detect a state of charge value of the storage battery. In this way, the main control device 100 can obtain the state of charge value of the storage battery from the power management module.
S22: the main control device 100 determines whether the state of charge value belongs to the first state of charge interval and the output power is greater than the minimum required power of the load power supply module 105, and if so, executes S23.
The first state of charge interval may be [ 0%, 100% ], or [ 10%, 90% ] or the like, and is not limited herein. In addition, the minimum required power of the load power supply module 105 refers to the minimum power at which the load 106 can be caused to operate. For example, the minimum required power may take different values for different classes of loads 106. For example, the minimum required power may be 2kw, 4kw, 5kw, or the like, and is not limited herein.
S23: the main control device 100 determines a value of the power supply power output by the load power supply module 105 and a value of the charging power for charging the energy storage battery module 104 according to the output power and the rated power of the load power supply module 105.
Specifically, the specific implementation of S23 is not limited to the following three cases:
the first method comprises the following steps: if the output power satisfies that a is not less than P1-a and P1 is not less than P, determining that the value of the charging power for charging the energy storage battery module 104 is a and the value of the power supply power output by the load power supply module 105 is P1-a. Where P1 is the output power, P is the rated power of the load power supply module 105, and a is the minimum required power of the load power supply module 105.
It can be understood that, in the case that the output power satisfies a ≦ P1-a and P1 ≦ P, since P1 ≦ P, the power supply module 105 cannot be allocated with the power supply power whose value is the rated power P, so that the load 106 is in the optimal operating state. And because a is less than or equal to P1-a, the power supply power of P1-a can be distributed to the load power supply module 105, and the power supply power of P1-a can drive the load 106 to normally operate. In addition, the energy storage battery module 104 is charged at the charging power a, so that the energy storage battery module 104 can be continuously charged in one charging cycle (a time period with solar illumination) to obtain higher energy storage.
Secondly, if the output power meets the condition that P2+ P is larger than P1, the charging power for charging the energy storage battery module 104 is determined to be P1-P, and the power supply power output by the load power supply module 105 is determined to be P. Wherein P1 is the output power, P is the rated power of the load power supply module 105, P2 is the maximum allowable charging power of the energy storage battery module 104, and when the charging power of the energy storage battery module 104 exceeds P2, the energy storage battery module 104 may be damaged.
It can be understood that, in the case that the output power satisfies P2+ P > P1 > P, since P1 > P, it may be determined that the value of the power supply power output by the load power supply module 105 is the rated power P, and the load 106 may be in the optimal operating state. And since P2+ P > P1, the value of the charging power distributed for charging the energy storage battery module 104 is P1-P. Furthermore, the energy storage battery module 104 can be continuously charged in one charging cycle (a time period with solar illumination) without being damaged, so as to obtain higher energy storage.
And the third is that: if the output power meets the condition that P1 is greater than P2+ P, the charging power for charging the energy storage battery module 104 is determined to be P2, and the supply power output by the load power supply module 105 is determined to be P, wherein P1 is the output power, P is the rated power of the load power supply module 105, and P2 is the maximum allowable charging power of the energy storage battery module 104.
It can be understood that, in the case that the output power satisfies P1 > P2+ P, the value of the power supply power output by the load power supply module 105 may be determined as the rated power P, so that the load 106 is in the optimal operating state. In addition, the value of the charging power allocated for charging the energy storage battery module 104 is the maximum allowable charging power P2 of the energy storage battery module 104, so that the energy storage battery module 104 can be continuously charged in one charging cycle (a time period with sunlight) without being damaged, so as to obtain higher energy storage.
S24: the solar power generation module 101 is controlled to charge the energy storage battery module 104 by taking the value of the charging power, and the load power supply module 105 is controlled to supply power to the load 106 by taking the value of the power supply power.
According to the electric energy distribution method, the power output by the solar power generation module 101 and the state of charge value of the energy storage battery module 104 can be obtained; in the case that the state of charge value belongs to the first state of charge interval and the output power is greater than the minimum required power of the load power supply module 105, it is stated that the power output by the solar power generation module 101 is capable of supplying power to the energy storage battery module 104 while supplying power to the load 106, which is capable of operating. In this way, the value of the power supply power output by the load power supply module 105 and the value of the charging power for charging the energy storage battery module 104 are determined according to the output power and the rated power of the load power supply module 105. Finally, the solar power generation module 101 is controlled to charge the energy storage battery module 104 by taking the value of the charging power, and the load power supply module 105 is controlled to supply power to the load 106 by taking the value of the power supply power. In this way, the energy storage battery module 104 can continuously obtain electric energy during a charging cycle (a period with solar illumination), and the load 106 can operate because of being powered. It can be seen that, when the output power of the solar power generation module 101 is greater than the minimum required power of the load power supply module 105, the load power supply module 105 outputs higher power supply energy to the load 106 while the energy storage battery module 104 has higher energy storage capacity, so that the load 106 can operate due to being supplied with power.
In addition, in a possible embodiment, the main control device 100 determines the value of the charging power for charging the energy storage battery module 104 as the minimum value of the output power and the maximum allowable charging power of the energy storage battery module 104.
In the case where the output power is less than or equal to the minimum required power of the load power supply module 105, even if the output power is entirely distributed to the load power supply module 105, the load power supply module 105 cannot operate the load 106. Therefore, only the value of the charging power for charging the energy storage battery module 104 is determined to be the minimum value of the output power and the maximum allowable charging power of the energy storage battery module 104, so that the energy storage battery module 104 can be continuously charged in one charging cycle (a time period with solar illumination) without being damaged to obtain higher energy storage, and the power supply power distributed to the load power supply module 105 is 0, so as to avoid wasting electric energy.
In addition, in a possible implementation manner, the electric energy distribution method provided by the embodiment of the present application may further include:
if the state of charge value belongs to a third state of charge interval and the output power meets the requirement that P1+ P3 is greater than P, the value of the power supply power output by the load power supply module 105 is determined to be P, and the value of the discharge power charged by the energy storage battery module 104 is determined to be P3, wherein the lower limit value of the third state of charge interval is greater than the upper limit value of the first state of charge interval.
It is understood that in the case of a state of charge value belonging to a third state of charge interval (e.g., [ 90%, 100% ]), the service life of the energy storage battery module 104 is affected, and therefore the energy storage battery module 104 can be discharged with a discharge power of P3. Under the condition that the output power meets P1+ P3 & gtP, the power supply power with the rated power P is distributed to the load power supply module 105, and the load 106 is prevented from being damaged.
In addition, in a possible implementation manner, the electric energy distribution method provided by the embodiment of the present application may further include:
if the state of charge value belongs to the third state of charge interval and the output power meets the condition that P1+ P3 is less than P, it is determined that the value of the power supply power output by the load power supply module 105 is P1+ P3 and the value of the discharge power discharged by the energy storage battery module 104 is P3. Wherein P1 is the output power, P is the rated power of the load power supply module 105, P3 is a constant greater than 0 (e.g., P3 may be 2kw, 3kw, and 4kw), and the lower limit of the third soc interval is greater than the upper limit of the first soc interval. The solar power generation module 101 is controlled to discharge the energy storage battery module 104 with the discharge power with the value of P3, and the load power supply module 105 is controlled to supply power to the load 106 with the supply power with the value of P1+ P3.
It is understood that in the case of a state of charge value belonging to a third state of charge interval (e.g., [ 90%, 100% ]), the service life of the energy storage battery module 104 is affected, and therefore the energy storage battery module 104 can be discharged with a discharge power of P3. Under the condition that the output power meets the condition that P1+ P3 < P, the power supply power of P1+ P3 is distributed to the load power supply module 105, and the load 106 cannot be damaged.
In addition, in a possible embodiment, if the state of charge value belongs to a second state of charge interval, it is determined that the value of the charging power for charging the energy storage battery module 104 is the minimum value of the output power and the maximum allowable charging power of the energy storage battery module 104, and the value of the power supply power output by the load power supply module 105 is 0, where the upper limit value of the second state of charge interval is lower than the lower limit value of the first state of charge interval; the solar power generation module 101 is controlled to charge the energy storage battery module 104 at the minimum value of the output power and the maximum allowable charging power of the energy storage battery module 104.
It is understood that in the case where the state of charge value falls within the second state of charge interval (e.g., [ 0%, 10% ]), it indicates that the current energy storage battery module 104 is storing little power and is not sufficient to provide sufficient power to the load 106 in the absence of light (e.g., at night). Therefore, the value of the charging power for charging the energy storage battery module 104 is determined to be the minimum value of the output power and the maximum allowable charging power of the energy storage battery module 104, and the value of the power supply power output by the load power supply module 105 is determined to be 0. In this way, the energy storage battery module 104 can be preferentially allocated with charging power without being damaged
In addition, in the embodiment of the present application, when the first switch module 102 is opened and the second switch module 103 is closed, the solar power generation module 101 may distribute the supply power only to the load supply module 105; when the first switch module 102 is closed and the second switch module 103 is opened, the solar power generation module 101 may distribute charging power only to the energy storage battery module 104.
Referring to fig. 3, an electric energy distribution apparatus 300 according to an embodiment of the present disclosure is applied to the main control device 100. It should be noted that the basic principle and the technical effects of the power distribution apparatus 300 provided in the embodiment of the present application are the same as those of the above embodiments, and for the sake of brief description, no mention is made in the embodiment of the present application, and reference may be made to the corresponding contents in the above embodiments. The main control device 100 is respectively in communication connection with the solar power generation module 101, the energy storage battery module 104 and the load power supply module 105, and the solar power generation module 101 and the energy storage battery module 104 are respectively in electrical connection with the load power supply module 105. The apparatus 300 includes an information acquisition unit 301, an information determination unit 302, and a power distribution unit 303. Wherein,
the information acquisition unit 301 is configured to acquire power output by the solar power generation module 101 and a state of charge value of the energy storage battery module 104.
The information determining unit 302 is configured to determine, according to the output power and the rated power of the load power supply module 105, a value of the power supply power output by the load power supply module 105 and a value of the charging power for charging the energy storage battery module 104, if the state of charge value belongs to the first state of charge interval and the output power is greater than or equal to the minimum required power of the load power supply module 105.
The functions specifically executed by the information determining unit 302 may include, but are not limited to, the following three cases:
in the first case: the information determining unit 302 is specifically configured to determine that a is a value of the charging power for charging the energy storage battery module 104 and a value of the power supply power output by the load power supply module 105 is P1-a if the output power satisfies that a is not less than P1-a and P1 is not less than P, where P1 is the output power, P is the rated power of the load power supply module 105, and a is the minimum required power of the load power supply module 105.
In the second case: the information determining unit 302 is specifically configured to determine that a charging power value for charging the energy storage battery module 104 is P1-P and a power supply power value for outputting by the load power supply module 105 is P if the output power satisfies P2+ P > P1 > P, where P1 is the output power, P is a rated power of the load power supply module 105, and P2 is a maximum allowable charging power of the energy storage battery module 104.
In the third case: the information determining unit 302 is specifically configured to determine that, if the output power satisfies that P1 > P2+ P, a value of the charging power for charging the energy storage battery module 104 is P2, and a value of the power supply power output by the load power supply module 105 is P, where P1 is the output power, P is a rated power of the load power supply module 105, and P2 is a maximum allowed charging power of the energy storage battery module 104.
In addition, the information determining unit 302 is further configured to determine that the charging power for charging the energy storage battery module 104 is the minimum value between the output power and the maximum allowable charging power of the energy storage battery module 104, if the state of charge value belongs to the first state of charge interval and the output power is less than the minimum required power of the load power supply module 105
The electric energy distribution unit 303 is configured to control the solar power generation module 101 to charge the energy storage battery module 104 with the value of the charging power, and control the load power supply module 105 to supply power to the load 106 with the value of the power supply power.
In a possible embodiment, the information determining unit 302 is further configured to determine that the supply power output by the load power supply module 105 is P1+ P3 and the discharge power discharged by the energy storage battery module 104 is P3 if the state of charge value belongs to a third state of charge interval and the output power satisfies P1+ P3 < P, where P1 is the output power, P is a rated power of the load power supply module 105, P3 is a constant greater than 0, and a lower limit of the third state of charge interval is greater than an upper limit of the first state of charge interval.
The electric energy distribution unit 303 is further configured to control the solar power generation module 101 to discharge the energy storage battery module 104 with the discharge power with the value P3, and control the load power supply module 105 to supply power to the load 106 with the supply power with the value P1+ P3.
In a possible embodiment, the information determining unit 302 is further configured to determine that the supply power output by the load power supply module 105 is P and the discharge power charged by the energy storage battery module 104 is P3 if the state of charge value belongs to a third state of charge interval and the output power satisfies P1+ P3 > P, where a lower limit of the third state of charge interval is greater than an upper limit of the first state of charge interval.
The electric energy distribution unit 303 is further configured to control the solar power generation module 101 to discharge the energy storage battery module 104 with the discharge power with the value P3, and control the load power supply module 105 to supply power to the load 106 with the supply power with the value P.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application. Referring to fig. 4, at a hardware level, the electronic device includes a processor, and optionally further includes an internal bus, a network interface, and a memory. The Memory may include a Memory, such as a Random-Access Memory (RAM), and may further include a non-volatile Memory, such as at least 1 disk Memory. Of course, the electronic device may also include hardware required for other services. For example, the electronic device may be the master device in the above-described embodiments.
The processor, the network interface, and the memory may be connected to each other via an internal bus, which may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 4, but that does not indicate only one bus or one type of bus.
And the memory is used for storing programs. In particular, the program may include program code comprising computer operating instructions. The memory may include both memory and non-volatile storage and provides instructions and data to the processor.
The processor reads the corresponding computer program from the non-volatile memory into the memory and runs the computer program, and the power distribution device is formed on a logic level. The processor is used for executing the program stored in the memory and is specifically used for executing the following operations:
acquiring power output by the solar power generation module and a charge state value of the energy storage battery module;
if the state of charge value belongs to a first state of charge interval and the output power is greater than the minimum required power of the load power supply module, determining the value of the power supply power output by the load power supply module and the value of the charging power for charging the energy storage battery module according to the output power and the rated power of the load power supply module;
and controlling the solar power generation module to charge the energy storage battery module by taking the value of the charging power, and controlling the load power supply module to supply power to the load equipment by taking the value of the power supply power.
The method performed by the power distribution apparatus according to the embodiment shown in fig. 2 of the present application may be applied to or implemented by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps, and logic blocks disclosed in this application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in this application may be directly implemented by a hardware decoding processor, or may be implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
The electronic device may also execute the power distribution method shown in fig. 2, and implement the functions of the power distribution apparatus in the embodiment shown in fig. 2, which are not described herein again.
Of course, besides the software implementation, the electronic device of the present application does not exclude other implementations, such as a logic device or a combination of software and hardware, and the like, that is, the execution subject of the following processing flow is not limited to each logic unit, and may also be hardware or a logic device.
The present application also contemplates a computer-readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by an electronic device, cause the electronic device to perform the power distribution method illustrated in fig. 2.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
The present application also provides a computer program product comprising a computer program which, when executed by a processor, implements the power distribution method as shown in fig. 2 of the present application.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. The utility model provides an electric energy distribution method, its characterized in that is applied to master control equipment, master control equipment respectively with solar energy power generation module, energy storage battery module and load power module communication connection, solar energy power generation module, energy storage battery module are connected with load power module electricity respectively, wherein, be connected with first switch module between solar energy power generation module and the energy storage battery module, wherein, be connected with second switch module between solar energy power generation module and the load power module, under the condition that first switch module, second switch module all are in the closed condition, the method includes:
acquiring the power output by the solar power generation module and the state of charge value of the energy storage battery module;
if the state of charge value belongs to a first state of charge interval and the output power is greater than the minimum required power of the load power supply module, determining the value of the power supply power output by the load power supply module and the value of the charging power for charging the energy storage battery module according to the output power and the rated power of the load power supply module;
and controlling the solar power generation module to charge the energy storage battery module by using the value of the charging power, and controlling the load power supply module to supply power to load equipment by using the value of the power supply power.
2. The method according to claim 1, wherein the determining, according to the output power and the rated power of the load power supply module, a value of the supply power output by the load power supply module and a value of the charging power for charging the energy storage battery module includes:
if the output power meets the condition that a is not more than P1-a and P1 is not more than P, determining that the value of the charging power for charging the energy storage battery module is a and the value of the power supply power output by the load power supply module is P1-a, wherein P1 is the output power, P is the rated power of the load power supply module, and a is the minimum required power of the load power supply module.
3. The method according to claim 1, wherein the determining, according to the output power and the rated power of the load power supply module, a value of the supply power output by the load power supply module and a value of the charging power for charging the energy storage battery module includes:
if the output power meets the condition that P2+ P is greater than P1 and is greater than P, the charging power for charging the energy storage battery module is determined to be P1-P, and the power supply power output by the load power supply module is determined to be P, wherein P1 is the output power, P is the rated power of the load power supply module, and P2 is the maximum allowable charging power of the energy storage battery module.
4. The method according to claim 1, wherein the determining, according to the output power and the rated power of the load power supply module, a value of the supply power output by the load power supply module and a value of the charging power for charging the energy storage battery module includes:
if the output power meets the condition that P1 is greater than P2+ P, the value of the charging power for charging the energy storage battery module is determined to be P2, and the value of the power supply power output by the load power supply module is determined to be P, wherein P1 is the output power, P is the rated power of the load power supply module, and P2 is the maximum allowable charging power of the energy storage battery module.
5. The method according to any one of claims 1-4, further comprising:
if the state of charge value belongs to a first state of charge interval and the output power is less than the minimum required power of the load power supply module, determining the value of the charging power for charging the energy storage battery module as the minimum value of the output power and the maximum allowable charging power of the energy storage battery module;
and controlling the solar power generation module to charge the energy storage battery module at the minimum value of the output power and the maximum allowable charging power of the energy storage battery module.
6. The method according to any one of claims 1-4, further comprising:
if the state of charge value belongs to a third state of charge interval and the output power meets the condition that P1+ P3 is less than P, determining that the value of the power supply power output by the load power supply module is P1+ P3 and the value of the discharge power discharged by the energy storage battery module is P3, wherein P1 is the output power, P is the rated power of the load power supply module, P3 is a constant greater than 0, and the lower limit value of the third state of charge interval is greater than the upper limit value of the first state of charge interval;
and controlling the solar power generation module to discharge the energy storage battery module by using the discharge power with the value P3, and controlling the load power supply module to supply power to the load equipment by using the power supply power with the value P1+ P3.
7. The method according to any one of claims 1-4, further comprising:
if the state of charge value belongs to a third state of charge interval and the output power meets the condition that P1+ P3 is larger than P, the value of the power supply power output by the load power supply module is P, and the value of the discharge power charged by the energy storage battery module is P3, wherein the lower limit value of the third state of charge interval is larger than the upper limit value of the first state of charge interval;
and controlling the solar power generation module to discharge the energy storage battery module by using the discharge power with the value P3, and controlling the load power supply module to supply power to the load equipment by using the power supply power with the value P.
8. The utility model provides an electric energy distributor which characterized in that is applied to the master control equipment, the master control equipment respectively with solar power module, energy storage battery module and load power module communication connection, solar power module, energy storage battery module are connected with load power module electricity respectively, the device includes:
the information acquisition unit is used for acquiring the power output by the solar power generation module and the state of charge value of the energy storage battery module;
the information determining unit is used for determining the value of the power supply power output by the load power supply module and the value of the charging power for charging the energy storage battery module according to the output power and the rated power of the load power supply module if the state of charge value belongs to a first state of charge interval and the output power is greater than or equal to the minimum required power of the load power supply module;
and the electric energy distribution unit is used for controlling the solar power generation module to charge the energy storage battery module by taking the value of the charging power and the load power supply module to supply power to load equipment by taking the value of the power supply power.
9. An electronic device, comprising:
a processor;
a memory for storing the processor-executable instructions;
wherein the processor is configured to execute the instructions to implement the power distribution method of any of claims 1 to 7.
10. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, implement the power distribution method of any one of claims 1 to 7.
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CN107979324A (en) * 2017-11-14 2018-05-01 北京汉能电子商务有限公司 Solar recharging system and its control method
CN110912246A (en) * 2019-11-28 2020-03-24 兰州交通大学 Power coordination controller applied to optical storage system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5270636A (en) * 1992-02-18 1993-12-14 Lafferty Donald L Regulating control circuit for photovoltaic source employing switches, energy storage, and pulse width modulation controller
CN105656169A (en) * 2014-11-28 2016-06-08 比亚迪股份有限公司 Power supply system and control method of power supply system
CN104953674A (en) * 2015-07-10 2015-09-30 北京交通大学 Charge-discharge control system and method capable of prolonging service life of energy-storage battery
CN107979324A (en) * 2017-11-14 2018-05-01 北京汉能电子商务有限公司 Solar recharging system and its control method
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