WO2024066910A1 - 通信站及其电源控制方法、装置及计算机存储介质 - Google Patents

通信站及其电源控制方法、装置及计算机存储介质 Download PDF

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Publication number
WO2024066910A1
WO2024066910A1 PCT/CN2023/116306 CN2023116306W WO2024066910A1 WO 2024066910 A1 WO2024066910 A1 WO 2024066910A1 CN 2023116306 W CN2023116306 W CN 2023116306W WO 2024066910 A1 WO2024066910 A1 WO 2024066910A1
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Prior art keywords
energy storage
storage component
energy
capacity
module
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PCT/CN2023/116306
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English (en)
French (fr)
Inventor
张德地
熊勇
王威
张凯原
肖胜贤
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中兴通讯股份有限公司
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Publication of WO2024066910A1 publication Critical patent/WO2024066910A1/zh

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/008Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28Arrangements for balancing of the load in a network by storage of energy
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • H02J7/00712Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/00714Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current

Definitions

  • the present application relates to the field of communication power supply technology, and in particular to a communication station and a power supply control method, device and computer storage medium thereof.
  • the present application provides a communication station and its power control method, device and computer storage medium, which aim to improve the utilization rate of solar energy while reducing the implementation cost and difficulty.
  • the present application provides a power control method for a communication station, comprising:
  • the working status of the energy module of the communication station and the energy storage component is controlled.
  • an embodiment of the present application further provides a power control device for a communication station, including:
  • a capacity threshold determination module configured to determine a capacity threshold of an energy storage component of a communication station
  • the working control module is configured to control the working state of the energy module and the energy storage component of the communication station based on the determined capacity threshold of the energy storage component.
  • an embodiment of the present application also provides a communication station, including an energy module, an energy storage component, and a power control module.
  • the power control module includes a processor and a memory.
  • the memory stores a program for controlling the energy module and the energy storage component.
  • the program is called by the processor to execute the power control method described in any of the above embodiments.
  • an embodiment of the present application further provides a computer storage medium storing a computer processing program, wherein the computer processing program is called by a processor to execute the power control method described in any of the above embodiments.
  • FIG1 is a schematic structural diagram of an embodiment of a power supply module for implementing a communication station of the present application
  • FIG2 is a flow chart of a first embodiment of a power control method for a communication station of the present application
  • FIG3 is a flow chart of a second embodiment of a power control method for a communication station of the present application.
  • FIG4 is a flow chart of a third embodiment of a power control method for a communication station of the present application.
  • FIG5 is a schematic structural diagram of an embodiment of a power control device of a communication station of the present application.
  • first, second, third, etc. may be used in this article to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information
  • second information may also be referred to as the first information.
  • word “if” as used herein may be interpreted as “at the time of” or “when” or “in response to determination”.
  • singular forms “one”, “an” and “the” are intended to include plural forms as well, unless otherwise indicated in the context.
  • A, B, C means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C", for example, "A, B or C” or "A, B and/or C” means "any of the following: A; B; C; A and B; A and C; B and C; A and B and C".
  • An exception to this definition will only occur when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.
  • the words “if” and “if” may be interpreted as “at the time of” or “when” or “in response to determining” or “in response to detecting”, depending on the context.
  • the phrases “if it is determined” or “if (stated condition or event) is detected” may be interpreted as “when it is determined” or “in response to determining” or “when detecting (stated condition or event)” or “in response to detecting (stated condition or event)", depending on the context.
  • step codes such as S10 and S20 are used for the purpose of expressing the corresponding content more clearly and concisely, and do not constitute a substantial limitation on the sequence.
  • S20 When implementing the step, those skilled in the art may execute S20 first and then S10, etc., but these should all be within the scope of protection of this application.
  • module means, “component” or “unit” used to represent elements are only used to facilitate the description of the present application, and have no specific meanings. Therefore, “module”, “component” or “unit” can be used in a mixed manner.
  • Existing communication base stations need to ensure uninterrupted power supply to maintain the normal operation of the communication base stations. Therefore, existing communication base stations are generally equipped with energy storage components to provide power when energy is insufficient. Moreover, while the city electricity or solar energy provides power to the communication base station, the energy storage components are charged to ensure that the energy storage components are fully charged.
  • the inventors proposed a new method to maximize the use of solar energy, that is, by setting the capacity threshold of the energy storage component and controlling the power supply of the communication base station, the capacity of the energy storage component is maintained at the capacity threshold, so as to achieve the purpose of absorbing as much solar energy as possible. Since this method does not require the use of big data algorithm processing of the background network management, but can be run on each communication base station, it reduces the cost and difficulty of implementation while improving the utilization rate of photovoltaics.
  • FIG. 1 is a schematic diagram of the structure of an embodiment of a power module of the communication station of the present application.
  • the power module includes: a first energy module 10, a second energy module 20 and an energy storage component 30.
  • the first energy module 10 is, for example, a solar energy module, a wind energy module or other energy modules
  • the second energy module 20 is, for example, a rectifier module connected to the mains.
  • the output priority of the first energy module 10 is higher than the output priority of the second energy module 20. Taking solar energy as an example, when the sunlight is strong, solar energy is used to power the load first, and the excess energy is used to charge the energy storage component.
  • the load When the solar energy supply is insufficient, the load is powered by the energy storage component; when the energy storage component is insufficient, the load is powered by the mains.
  • the first energy module being a solar energy module
  • the second energy module being a rectifier module of the mains.
  • FIG. 2 is a flow chart of an embodiment of a power control method of a communication station of the present application.
  • the power control method of this embodiment includes:
  • the capacity threshold of the energy storage component can be set according to the empirical value, or it can be flexibly set according to the actual operating conditions, such as current environmental information, historical operating data, etc. After determining the capacity threshold of the energy storage component, the capacity of the energy storage component can be maintained at the capacity threshold by controlling the working state of the energy module and the energy storage component.
  • the capacity of the energy storage component refers to the percentage capacity.
  • the excess energy is used to charge the energy storage component; when the energy storage component supplies power to the load and reaches the capacity threshold, the energy storage component stops supplying power to the load, so that the next time the sunlight becomes stronger, it absorbs excess solar energy, thereby improving the utilization efficiency of photovoltaics.
  • step S10 includes: dynamically adjusting the capacity threshold of the energy storage component according to the historical capacity record of the energy storage component when the communication station is running, so that the energy storage component can absorb energy exceeding the load power to the maximum extent.
  • the capacity threshold of the energy storage component set according to the empirical value may be able to meet most usage scenarios, but the usage scenarios of the communication station will vary due to its geographical location, weather conditions or the power consumption of the communication station. Therefore, the capacity threshold set according to the empirical value needs to be dynamically adjusted during use, so that the capacity of the energy storage component to absorb solar energy gradually approaches the capacity upper limit, that is, the energy storage component can absorb energy that exceeds the load power to the maximum extent.
  • the historical capacity record of the energy storage component may specifically include: date, maximum value of percentage capacity of the energy storage component, maximum value update time, minimum value of percentage capacity of the energy storage component, minimum value update time, etc. That is, step S10 specifically includes: dynamically adjusting the capacity threshold of the energy storage component according to the historical percentage capacity extreme value record of the energy storage component when the communication station is running.
  • the first step is to determine whether the maximum capacity of the energy storage component is equal to 100%
  • the maximum capacity of the energy storage component is equal to 100%, then determine whether the difference between the maximum capacity of the energy storage component and the minimum capacity of the energy storage component is greater than ⁇ ; if the difference between the maximum capacity of the energy storage component and the minimum capacity is greater than ⁇ , then the capacity threshold of the energy storage component is reduced by ⁇ ; if the difference between the maximum capacity of the energy storage component and the minimum capacity is less than or equal to ⁇ , then the capacity threshold of the energy storage component remains unchanged;
  • the second step is, if the maximum capacity of the energy storage component is not equal to 100%, then determine whether the maximum capacity of the energy storage component is within the range of [expected capacity, 99%];
  • Step 3 If the maximum capacity of the energy storage component is not within the range of [expected capacity, 99%], determine the capacity of the energy storage component. Whether the maximum value is less than the expected capacity - 1;
  • the capacity threshold of the energy storage component can be gradually and dynamically adjusted to the optimal value according to the actual situation of the power supply system of the communication station, which can not only maximize the absorption of solar energy that exceeds the load power but also allow the energy storage component to reach a nearly full state.
  • the energy storage component includes two states: a charge-discharge state and a charge-discharge prohibited state.
  • the capacity of the energy storage component is monitored to achieve switching between the two states.
  • FIG. 3 is a flow chart of a second embodiment of the power control method of the communication station of the present application.
  • the above step S20 includes:
  • the energy storage component in this embodiment is in the state of discharging, indicating that the energy storage component is supplying power to the load at this time; when the energy storage component is in the state of charging and discharging, the energy module can charge the energy storage component, or the energy storage component can supply power to the load. Since the energy storage component is supplying power to the load and the capacity has reached a certain capacity threshold, the energy storage component is controlled to prohibit charging and discharging, that is, the energy storage component stops supplying power to the load, and the energy module also stops charging the energy storage component. Since the energy storage component supplies power to the load when solar energy is insufficient, after the energy storage component stops supplying power to the load, the AC power supplies power to the load through the rectifier module. The purpose of limiting the charging of the energy storage component is to prevent the AC power from charging the energy storage component when the load is supplied with power, so that the energy storage component can reserve space to absorb solar energy when the sunlight becomes stronger next time.
  • the energy storage component is in a state where charging and discharging is prohibited, and the output current of the first energy module is greater than a preset current threshold, and the output current of the second energy module is less than the preset current threshold, and the energy storage component is controlled to enter a charging and discharging state.
  • the first energy module is, for example, a solar module
  • the second energy module is, for example, a rectifier module of a mains electricity supply.
  • This embodiment switches the energy storage component between the charge and discharge state and the charge and discharge prohibited state based on the capacity threshold of the energy storage component, thereby ensuring that the service life of the energy storage component is damaged due to the low capacity of the energy storage component, and when the capacity of the energy storage component is insufficient, it not only avoids the waste caused by charging it with the mains, but also fully absorbs solar energy, thereby improving the utilization efficiency of photovoltaics.
  • this embodiment when the energy storage component is in a charging and discharging state, in order to ensure that the energy storage component absorbs solar energy instead of electrical energy, this embodiment is configured as follows:
  • the output voltage of the second energy module 20, i.e. the rectifier module, is controlled to select the larger value from the preset first voltage threshold and the difference between the real-time voltage and the preset second voltage threshold. That is, max[busbar voltage- ⁇ 2, guaranteed voltage];
  • the voltage is the real-time voltage of the DC output terminal detected, also known as the busbar voltage;
  • the preset first voltage threshold is the bottom voltage, the purpose of which is to prevent the energy storage component from being discharged or the load from powering off;
  • the preset second voltage threshold ⁇ 2 is a set empirical value.
  • the output voltage of the first energy module 10, that is, the solar module, is controlled to be the sum of the output voltage of the second energy module 20 and the preset third voltage threshold.
  • the preset third voltage threshold ⁇ 1 is a set empirical value. Among them, ⁇ 1> ⁇ 2>0V.
  • the priority order when supplying power to the load can be made: first energy module>energy storage component>second energy module.
  • a maximum charging current of the energy storage component is set to prevent the energy storage component from being damaged due to excessive current when the energy module is charging the energy storage component.
  • the following settings are performed:
  • the output voltage of the second energy module is adjusted so that the charging current of the energy storage component is within a preset current range; the output voltage of the first energy module is controlled to be the sum of the output voltage of the second energy module and a preset third voltage threshold.
  • the current target value range of the charging current of the energy storage component is set, that is, the energy storage component charging current ⁇ [-a, a]; a is adjusted according to the detection accuracy of the system.
  • the output voltage of the second energy module that is, the rectifier module, is adjusted. Specifically, it is determined whether the detected charging current is within the current target value range. If it is within the current target value range, the output voltage value of the rectifier module is kept unchanged.
  • the preset third voltage threshold is a set empirical value, and the preset third voltage threshold and the second voltage threshold can be equal or unequal.
  • a target voltage may be set. When the output voltage of the rectifier module gradually increases and reaches the target voltage, it will no longer increase.
  • the output voltage of the solar module will follow the output voltage changes of the rectifier module, thereby monitoring the changes in solar energy and ensuring timely switching of the charging and discharging states.
  • this embodiment in order to calibrate the capacity of the energy storage component to increase the accuracy of power control, this embodiment adds a long-charge state of the energy storage component, that is, the energy storage component is continuously charged by the second energy source.
  • the output voltage of the second energy module is adjusted so that the charging current of the energy storage component reaches a preset maximum charging current; wherein, when the output voltage of the second energy module increases to a preset fourth voltage threshold, the output voltage of the fourth voltage threshold is maintained.
  • the output current of the second energy module is set to The voltage is adjusted according to the maximum charging current of the energy storage component. Specifically, it is determined whether the detected charging current reaches the maximum charging current. If it reaches the maximum charging current, the output voltage value of the rectifier module is kept unchanged. If it does not reach the maximum charging current, the output voltage value of the rectifier module is gradually increased until the set maximum charging current is reached. If the detected charging current is greater than the maximum charging current, the output voltage value of the rectifier module is gradually reduced until the set maximum charging current is reached.
  • the preset fourth voltage threshold is an empirical value set, and the preset fourth voltage threshold may be equal to or unequal to the third voltage threshold and the second voltage threshold.
  • a target voltage may be set. When the output voltage of the rectifier module gradually increases and reaches the target voltage, it will no longer increase.
  • the triggering conditions for entering and exiting the long charge state of the energy storage component include:
  • the energy storage component is controlled to enter the long charge state, and the second energy module is controlled to perform long charge on the energy storage component.
  • the charge-discharge state is converted to the mains long-charge state: If the system time reaches the long-charge start time, and the maximum capacity of the energy storage component is less than the capacity threshold for starting mains long-charge (for example, 90%) for N1 consecutive days, or there is no mains long-charge for M1 consecutive days, then the charge-discharge state is exited and the mains long-charge state is entered.
  • the capacity threshold for starting mains long-charge for example, 90%
  • the prohibited charge and discharge state is converted to the mains long charge state: If the system time reaches the long charge start time, and the maximum capacity of the energy storage component is less than the capacity threshold for starting the mains long charge (for example, 90%) for N1 consecutive days, or there is no mains long charge for M consecutive days, then the prohibited charge and discharge state is exited and the mains long charge state is entered.
  • the capacity threshold for starting the mains long charge for example, 90%
  • the mains long charge state In the mains long charge state, if the long charge end condition is met, that is, the charging time is ⁇ T hours and the capacity of the energy storage component is 100%, it will enter the charge and discharge state. Since the capacity of the energy storage component is 100% at this time, it will not enter the prohibited charge and discharge state, but enter the charge and discharge state.
  • the preset capacity threshold is 100%, of course, it can also be set to other values.
  • the above embodiments are applicable to the scenario of flat electricity price, while the mains type also has the scenario of peak and valley electricity price.
  • the termination capacity of the charging of the energy storage component with the valley electricity price should be maintained at a capacity threshold for charging termination. Therefore, the capacity threshold described in the following embodiments refers to the capacity threshold for charging termination.
  • step S10 includes:
  • the capacity change value of the energy storage component on the next day is predicted based on the weather environment in the historical capacity change value record of the energy storage component when the communication station is running, and the capacity threshold of the energy storage component is adjusted based on the predicted capacity change value of the energy storage component.
  • the above-mentioned historical capacity change value record may include: date, weather factor, crowd factor, daytime maximum value of energy storage component capacity, nighttime maximum value of energy storage component capacity and capacity change value of energy storage component.
  • the most recent energy storage component capacity change record is selected as the solar energy storage capacity prediction value for the next day, that is, the predicted capacity change value of the energy storage component.
  • the capacity threshold of the energy storage component is adjusted.
  • the capacity of the energy storage component is calculated based on a preset relationship. Specifically as follows:
  • the capacity threshold for terminating charging max[(expected capacity - (predicted change in energy storage component capacity / total capacity of energy storage components) * 100%), guaranteed capacity].
  • the expected capacity is the expected daytime maximum value
  • the guaranteed capacity is the minimum capacity to protect the power safety of the equipment.
  • the accuracy of the capacity change value of the energy storage component in the historical capacity change value record is critical.
  • the daytime maximum value of the energy storage component capacity is equal to 100%, it may cause a relatively large deviation in the recorded capacity change value of the energy storage component. Therefore, it is necessary to dynamically adjust the recorded capacity change value.
  • the specific adjustment process is as follows:
  • the change in energy storage component capacity [(daytime maximum value - nighttime maximum value) + ⁇ ] ⁇ total energy storage capacity, where ⁇ , ⁇ [1%, 100%].
  • the energy storage component capacity change value (daytime maximum value - nighttime maximum value) ⁇ total energy storage capacity.
  • the energy storage component capacity change value (daytime maximum value - nighttime maximum value) ⁇ total energy storage capacity.
  • the energy storage component includes a charging and discharging state, a charging and discharging prohibited state, and a charging state during a valley electricity price period.
  • the switching of the three states is achieved by monitoring the capacity of the energy storage component and the peak and valley electricity price periods.
  • FIG. 4 is a flow chart of the third embodiment of the power supply control method of the communication station of the present application.
  • the above step S20 includes:
  • the energy storage component When the energy storage component is in the charging and discharging state, the energy storage component can discharge for the load, and the energy module can charge the energy storage component.
  • the following settings are made when the energy storage component is in the charging and discharging state:
  • the output voltage of the second energy module i.e., the rectifier module
  • the output voltage of the second energy module is controlled to select a larger value from the preset first voltage threshold and the difference between the real-time voltage and the preset second voltage threshold. That is, max[busbar voltage- ⁇ 2, guaranteed voltage]; the real-time voltage is the real-time voltage detected at the DC output terminal, also known as the busbar voltage; the preset first voltage threshold is the guaranteed voltage, the purpose of which is to prevent the energy storage component from being discharged or the load from losing power; the preset second voltage threshold ⁇ 2 is a set empirical value.
  • the output voltage of the first energy module is controlled to be the sum of the output voltage of the second energy module and a preset third voltage threshold.
  • the preset third voltage threshold ⁇ 1 is a set empirical value. Among them, ⁇ 1> ⁇ 2>0V.
  • the priority order when supplying power to the load can be: first energy module>energy storage component> Second energy module.
  • a maximum charging current of the energy storage component is set to prevent the energy storage component from being damaged due to excessive current when the energy module is charging the energy storage component.
  • the energy storage component when the energy storage component is in the charging and discharging state, the energy storage component may be in the discharging state and in the continuous discharging state. Therefore, if it enters the valley electricity price period and does not meet the long-term charging conditions, the energy storage component is controlled to enter the valley electricity price charging state, that is, the energy storage component is charged by the mains.
  • the output voltage of the second energy module is adjusted according to the maximum charging current of the energy storage component.
  • the specific adjustment process can be implemented with reference to the adjustment scheme of the second embodiment.
  • the energy storage component supplies power to the load.
  • the energy storage component is controlled to prohibit charging and discharging.
  • the energy storage component can be controlled to enter the valley electricity price charging state at this time, and the energy storage component is charged by the mains until the capacity of the energy storage component reaches the determined capacity threshold, and then the energy storage component is controlled to enter the prohibited charging and discharging state. Or at the end of the valley electricity price period, the energy storage component is controlled to enter the prohibited charging and discharging state.
  • the capacity threshold By determining the capacity threshold, it is ensured that the capacity of the energy storage component is not too low, and the energy storage component can be avoided from being charged when supplying power to the load during the peak electricity price period.
  • the maximum space can be reserved for absorbing solar energy when the sunlight becomes stronger next time.
  • the first energy module is, for example, a solar module
  • the second energy module is, for example, a rectifier module of a mains electricity supply.
  • the energy storage components are also controlled to enter the charging and discharging state. Since the electricity price during the peak electricity price period is higher, by controlling the energy storage components to enter the charging and discharging state, when solar energy is insufficient, the energy storage components can supply power to the load, thereby achieving energy saving.
  • this embodiment in order to calibrate the capacity of the energy storage component to increase the accuracy of power supply control, this embodiment adds a long-charge state of the energy storage component, that is, the energy storage component is continuously charged by the second energy source.
  • the entry or exit conditions of the long-charge state, as well as the control logic during the long-charge state, can be implemented with reference to the previous second embodiment, with the only difference being: S28, if the valley electricity price period is entered, and the maximum capacity of the energy storage component is less than the long-charge capacity threshold for N2 consecutive days or the second energy long-charge is not performed for M2 consecutive days, then the energy storage component is controlled to enter the long-charge state, and the second energy module is controlled to perform long-charge on the energy storage component until the energy storage component is continuously charged for T2 hours, and the capacity of the energy storage component reaches the preset capacity threshold.
  • energy saving is achieved by making full use of the valley electricity price period for long-charge of the mains electricity.
  • the embodiment of the present application determines the capacity threshold of the energy storage component and controls The working status of the energy module and the energy storage component enables the capacity of the energy storage component to be maintained at the capacity baseline value, so that the energy storage component can reserve more capacity space to absorb excess solar energy, which not only improves the utilization efficiency of solar energy, but also avoids the waste of other energy sources, thereby achieving energy saving.
  • the capacity threshold of the energy storage component can be gradually and dynamically adjusted to the optimal value, which can maximize the absorption of solar energy that exceeds the load power and allow the energy storage component to reach a nearly full state.
  • the power control method of the embodiment of the present application realizes the power control of the communication station through a solution that is simpler than the algorithm of the background network management, which not only improves the utilization efficiency of solar energy, but also the method runs directly in each communication station, which not only reduces the dependence of the communication station's power supply on the external or background network management, but also reduces the implementation cost and difficulty, which is conducive to the promotion of the present application on a larger scale.
  • the energy storage component is a conventional lithium battery with a capacity of 100AH;
  • the average power consumption of the site load is 1000W, and the maximum power consumption is 2000W.
  • the communication power system controls and switches between the four states of energy storage components: charging and discharging state, prohibited charging and discharging state, and long-term mains charging:
  • Rectifier module output voltage max [busbar voltage - 0.5V, 46V]; (the minimum voltage is the parameter setting value, and the busbar voltage is the real-time detection value)
  • the output priority is: solar module output > energy storage component output > rectifier output.
  • the purpose of the minimum voltage is to prevent the energy storage components from being discharged or the load from losing power.
  • the system After the system is started, if the real-time percentage capacity of the energy storage component is greater than the reference value of the energy storage component capacity, the system will enter the charge and discharge state management;
  • the solar output module is greater than 2A, and the energy storage component current is greater than -1A, then enter the charging and discharging state management;
  • the charge and discharge state management In the long-charge state management of the mains, if the long-charge end conditions are met, that is, the charging time is ⁇ 10 hours and the energy storage component capacity is 100%, the charge and discharge state management will be entered;
  • the charge and discharge management state will be exited and the mains long charge management state will be entered.
  • the expected voltage output by the rectifier module 54V; (parameter value)
  • the system After the system is started, if the real-time percentage capacity of the energy storage component is less than or equal to the reference value of the energy storage component capacity, the system will enter the charge and discharge state management;
  • the charge and discharge state management if the real-time percentage capacity of the energy storage component is less than or equal to the energy storage component capacity reference value, and the energy storage component current is ⁇ -2A, the charge and discharge state management is prohibited;
  • the solar output module is greater than 2A, and the energy storage component is greater than 1A, then exit the prohibited charge and discharge management state;
  • the charging and discharging prohibited management state will be exited and the mains long-term charging management state will be entered.
  • the expected voltage output by the rectifier module 54V;
  • the mains long charging state In the charging and discharging state or the charging and discharging prohibited state, if the system time reaches 16:00, and the maximum value of the energy storage capacity is less than 90% for 7 consecutive days or there is no mains long charging for 15 consecutive days, the mains long charging state will be entered.
  • the charging time is ⁇ 10 hours and the energy storage component capacity is 100%, the mains long-charge state is exited;
  • the system's dynamic adjustment strategy for the energy storage component percentage capacity benchmark value i.e. capacity threshold:
  • Freeze time freeze at 24:00 to record the extreme value of the day and start recording for the next day;
  • the base capacity of the energy storage component is reduced by 5%
  • the base capacity of the energy storage component remains unchanged
  • the energy storage component capacity baseline value remains unchanged
  • the percentage capacity benchmark value of the energy storage component can be gradually and dynamically adjusted to the optimal value according to the actual situation of the communication power system, that is, it can maximize the absorption of solar energy that exceeds the load power and allow the energy storage component to reach a nearly full state.
  • the energy storage component is a conventional lithium battery with a capacity of 200AH;
  • the average power consumption of the site load is 1000W, and the maximum power consumption is 2000W.
  • Peak and valley periods The valley electricity price period is from 23:00 to 6:00 the next day, the peak electricity price period is from 7:00 to 12:00 and 14:00 to 22:00, and the rest of the period is the flat electricity price period;
  • the communication power system controls and switches the energy storage components in four states: charging and discharging state, charging state during off-peak hours, prohibited charging and discharging state, and long-term mains charging:
  • Rectifier module output voltage max [busbar voltage - 0.5V, 46V]; (the minimum voltage is the parameter setting value)
  • the output priority is solar module output > energy storage component output > rectifier output.
  • the purpose of the minimum voltage is to prevent the energy storage components from being discharged or the load from losing power.
  • the solar output module is greater than 2A, and the energy storage component charging current is greater than 1A, then enter the charge and discharge state management; or enter the peak electricity price period, then enter the charge and discharge state management;
  • the charging and discharging state management will be entered;
  • the charging and discharging management state will be exited and the long-term mains charging management state will be entered.
  • the system will exit the charge and discharge management state and enter the valley electricity price period charging state.
  • Charging target percentage capacity termination charging percentage capacity reference value (dynamic adjustment)
  • the expected voltage output by the rectifier module 54V; (parameter value)
  • the off-peak electricity price period charging state management In the charging and discharging state, if the off-peak electricity price period is entered and the conditions for entering the long-term charging state of the mains electricity are not met, the off-peak electricity price period charging state management will be entered;
  • the expected voltage output by the rectifier module 54V; (parameter value)
  • the output current of the rectifier module is less than 2A (adjusted according to the detection accuracy of the system, mainly used to determine whether the rectifier module is not outputting If the solar output module is greater than 2A, the energy storage component current is greater than 1A, or the peak electricity price period arrives, the charging and discharging prohibition management state will be exited;
  • the expected voltage output by the rectifier module 54V;
  • the system time reaches the valley electricity price period, and the maximum energy storage capacity is less than 90% for 7 consecutive days or there is no long-term mains charging for 15 consecutive days, it will enter the long-term mains charging state.
  • the system dynamically adjusts the termination charging percentage capacity benchmark value (i.e. capacity threshold) during the off-peak electricity price period:
  • the recorded contents include: date, weather factor, crowd factor, daytime maximum value of energy storage component capacity, nighttime maximum value of energy storage component capacity, and capacity change value of energy storage component;
  • the records are averaged to obtain the predicted value of solar energy storage capacity for the next day. If there is no matching record of weather factor and crowd factor, the records are searched for the matching records of the two most recent weather factors and crowd factor, and the average of the two energy storage component capacity change records is obtained to obtain the predicted value of solar energy storage capacity for the next day. If no matching record of weather factor and crowd factor is found in the records, the most recent energy storage component capacity change record is selected as the predicted value of solar energy storage capacity for the next day.
  • the capacity change value of the energy storage component [(daytime maximum value - nighttime maximum value) + 5%] ⁇ 200AH; ⁇ , ⁇ [1%, 100%].
  • the energy storage component capacity change value (daytime maximum value - nighttime maximum value) ⁇ 200AH.
  • the change in energy storage component capacity (daytime maximum value - nighttime maximum value) ⁇ 200AH.
  • the termination charge percentage capacity reference value MAX [(95% - (predicted energy storage component capacity change value/200AH) * 100%), 40%].
  • the termination charging percentage capacity reference value of the energy storage component can be gradually and dynamically adjusted to the optimal value according to the actual situation of the communication power supply system.
  • the solar energy that exceeds the load power can be fully utilized and the valley price market electricity can be used to the maximum extent.
  • This method converts the prediction of solar power and load power consumption into the prediction of the cumulative change of energy storage component capacity within a day, which greatly reduces the amount of recorded data and greatly simplifies the prediction algorithm, so that it can be deployed on the communication site side.
  • the present application provides a power control device for a communication station, including:
  • a capacity threshold determination module 30 configured to determine a capacity threshold of an energy storage component of a communication station
  • the working control module 40 is configured to control the working state of the energy module and the energy storage component of the communication station based on the determined capacity threshold of the energy storage component.
  • the present application also provides a communication station, wherein the communication device includes a memory and a processor, wherein a processing program is stored in the memory, and when the processing program is executed by the processor, the steps of the processing method in any of the above embodiments are implemented.
  • the present application also provides a computer-readable storage medium, on which a processing program is stored.
  • a processing program is stored.
  • the steps of the processing method in any of the above embodiments are implemented.
  • the present application also provides a computer program product, which includes a computer program code.
  • a computer program product which includes a computer program code.
  • the computer program code runs on a computer, the computer executes the methods in various possible implementation modes described above.
  • the units in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.
  • the technical solution of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as above, and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, a controlled terminal, or a network device, etc.) to execute the method of each embodiment of the present application.
  • a storage medium such as ROM/RAM, magnetic disk, optical disk
  • a terminal device which can be a mobile phone, a computer, a server, a controlled terminal, or a network device, etc.
  • a computer program product includes one or more computer instructions.
  • a computer program instruction When a computer program instruction is loaded and executed on a computer, a process or function according to an embodiment of the present application is generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • Computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • computer instructions may be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated therein. Available media may be magnetic media (e.g., floppy disks, storage disks, tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state storage disks Solid State Disk (SSD)), etc.

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Abstract

本申请提出了一种通信站的电源控制方法,通过确定通信站的储能组件的容量阈值,然后基于所确定的容量阈值控制通信站的能源模块以及储能组件的工作状态。本申请还提出了通信站及其电源控制装置、计算机存储介质。

Description

通信站及其电源控制方法、装置及计算机存储介质
相关申请
本申请要求于2022年9月29号申请的、申请号为202211204577.5的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信电源技术领域,具体涉及一种通信站及其电源控制方法、装置及计算机存储介质。
背景技术
目前的通信基站都已配置了光伏充电功能,但是由于太阳能有较大的随机性和不确定性,因此太阳能的应用效果并不理想。
为了提升太阳能的应用效率,有人提出一种基于后台网管的方案。具体地,结合实时采集的光照信息、负载参数、天气预报、历史同期数据等大数据,利用神经网络的暴力计算,预测太阳能产能和负载用能,并以高循环性能锂电池作为储能调用,实现太阳能最大化的利用。
但是,上述方案需要大量的数据来训练,且训练算法本身非常复杂,所以对算力、数据存储和网络等条件的要求非常高,实现成本和实现难度均较大。
发明内容
针对上述技术问题,本申请提供一种通信站及其电源控制方法、装置及计算机存储介质,旨在提升太阳能的利用率的同时,还降低了实现成本和实现难度。
第一方面,本申请提供一种通信站的电源控制方法,包括:
确定所述通信站的储能组件的容量阈值;
基于所确定的所述储能组件的容量阈值,控制所述通信站的能源模块、所述储能组件的工作状态。
另一方面,本申请实施例还提供一种通信站的电源控制装置,包括:
容量阈值确定模块,配置为确定通信站的储能组件的容量阈值;
工作控制模块,配置为基于所确定的所述储能组件的容量阈值,控制所述通信站的能源模块、所述储能组件的工作状态。
又一方面,本申请实施例还提供一种通信站,包括能源模块、储能组件、电源控制模块,所述电源控制模块包括处理器和存储器,所述存储器上存储有对能源模块和储能组件的进行控制的程序,该程序供所述处理器调用,执行上述任一实施例所述的电源控制方法。
再一方面,本申请实施例还提供一种计算机存储介质,存储有计算机处理程序,所述计算机处理程序供处理器调用,执行上述任一实施例所述的电源控制方法。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分,示出了符合本申请的实施例,并与说明书一起用于解释本申请的原理。为了更清楚地说明本申请实施例的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,对于本领域普通技术人员而言,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1为实现本申请一种通信站的电源模块一实施例的结构示意图;
图2为本申请通信站的电源控制方法第一实施例的流程示意图;
图3为本申请通信站的电源控制方法第二实施例的流程示意图;
图4是本申请通信站的电源控制方法第三实施例的流程示意图;
图5是本申请通信站的电源控制装置一实施例的结构示意图。
本申请目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。通过上述附图,已示出本申请明确的实施例,后文中将有更详细的描述。这些附图和文字描述并不是为了通过任何方式限制本申请构思的范围,而是通过参考特定实施例为本领域技术人员说明本申请的概念。
具体实施方式
这里将详细地对示例性实施例进行说明,其示例表示在附图中。下面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素,此外,本申请不同实施例中具有同样命名的部件、特征、要素可能具有相同含义,也可能具有不同含义,其具体含义需以其在该具体实施例中的解释或者进一步结合该具体实施例中上下文进行确定。
应当理解,尽管在本文可能采用术语第一、第二、第三等来描述各种信息,但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如,在不脱离本文范围的情况下,第一信息也可以被称为第二信息,类似地,第二信息也可以被称为第一信息。取决于语境,如在此所使用的词语"如果"可以被解释成为"在……时"或"当……时"或"响应于确定"。再者,如同在本文中所使用的,单数形式“一”、“一个”和“该”旨在也包括复数形式,除非上下文中有相反的指示。应当进一步理解,术语“包含”、“包括”表明存在所述的特征、步骤、操作、元件、组件、项目、种类、和/或组,但不排除一个或多个其他特征、步骤、操作、元件、组件、项目、种类、和/或组的存在、出现或添加。本申请使用的术语“或”、“和/ 或”、“包括以下至少一个”等可被解释为包括性的,或意味着任一个或任何组合。例如,“包括以下至少一个:A、B、C”意味着“以下任一个:A;B;C;A和B;A和C;B和C;A和B和C”,再如,“A、B或C”或者“A、B和/或C”意味着“以下任一个:A;B;C;A和B;A和C;B和C;A和B和C”。仅当元件、功能、步骤或操作的组合在某些方式下内在地互相排斥时,才会出现该定义的例外。
应该理解的是,虽然本申请实施例中的流程图中的各个步骤按照箭头的指示依次显示,但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明,这些步骤的执行并没有严格的顺序限制,其可以以其他的顺序执行。而且,图中的至少一部分步骤可以包括多个子步骤或者多个阶段,这些子步骤或者阶段并不必然是在同一时刻执行完成,而是可以在不同的时刻执行,其执行顺序也不必然是依次进行,而是可以与其他步骤或者其他步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。
取决于语境,如在此所使用的词语“如果”、“若”可以被解释成为“在……时”或“当……时”或“响应于确定”或“响应于检测”。类似地,取决于语境,短语“如果确定”或“如果检测(陈述的条件或事件)”可以被解释成为“当确定时”或“响应于确定”或“当检测(陈述的条件或事件)时”或“响应于检测(陈述的条件或事件)”。
需要说明的是,在本文中,采用了诸如S10、S20等步骤代号,其目的是为了更清楚简要地表述相应内容,不构成顺序上的实质性限制,本领域技术人员在具体实施时,可能会先执行S20后执行S10等,但这些均应在本申请的保护范围之内。
应当理解,此处所描述的具体实施例仅仅用以解释本申请,并不用于限定本申请。
在后续的描述中,使用用于表示元件的诸如“模块”、“部件”或者“单元”的后缀仅为了有利于本申请的说明,其本身没有特定的意义。因此,“模块”、“部件”或者“单元”可以混合地使用。
现有的通信基站需要保证不间断的电源供应,以保持通信基站的正常工作。因此,现有的通信基站一般都配置储能组件,以在能源不足时,通过储能组件进行供电。而且,在市电或者太阳能为通信基站提供电源的同时,对储能组件进行充电,以保证储能组件的电量充足。
另外,为了节约能源,尽可能地使用太阳能对储能组件进行充电。但是,由于太阳能有较大的随机性和不确定性,实际使用中往往出现储能组件充满后太阳能白白浪费的情况,即弃光现象。
虽然有人提出利用后台网管,通过实时采集地光照强度、温度和负载功率,结合天气预报、历史同期数据等,采用神经网络的计算,实现太阳能产能和负载用能的预测,并以高循环性能锂电池作为储能调用,从而实现太阳能最大化的利用,但方案需要大量的数据来训练,且训练算法本身非常复杂,实现成本和实现难度均较大。
对此,发明人在如何最大化利用太阳能的过程中,提出了一种新的方法,即通过对储能组件的容量阈值进行设定,并对通信基站的电源进行控制,使得储能组件的容量维持在该容量阈值,以达到尽可能多地吸收太阳能的目的。由于该方法不需要利用后台网管的大数据算法处理,而是可以运行于每个通信基站上,因此在提高光伏利用率的同时,降低了实现成本和实现难度。
参照图1,图1是本申请通信站的电源模块一实施例的结构示意图。该电源模块包括:第一能源模块10、第二能源模块20以及储能组件30。其中第一能源模块10例如为太阳能模块、风能模块等其他能源模块,第二能源模块20例如为与市电连接的整流模块。为了充分地利用太阳能等可再生能源,第一能源模块10的输出优先级高于第二能源模块20的输出优先级。以太阳能为例,当太阳光较强时,优先以太阳能给负载供电,多余的能量再给储能组件充电。当太阳能供电不足时,则通过储能组件给负载供电;当储能组件的电量不足时,通过市电给负载供电。为了方便描述,以下的实施例在描述时,以第一能源模块为太阳能模块,第二能源模块为市电的整流模块。
参照图2,图2是本申请通信站的电源控制方法一实施例的流程示意图。该实施例的电源控控制方法包括:
S10,确定通信站的储能组件的容量阈值;
S20,基于所确定的储能组件的容量阈值,控制通信站的能源模块、储能组件的工作状态。
上述步骤S10中可以根据经验值来设定储能组件的容量阈值,也可以根据实际运行情况例如当前环境信息、历史运行数据等进行灵活设置。确定储能组件的容量阈值后,就可以通过控制能源模块以及储能组件的工作状态,使得储能组件的容量维持在该容量阈值。储能组件的容量是指百分比容量。例如,当太阳光较强时,太阳能为负载供电外,多余的能量为储能组件进行充电;当储能组件为负载供电并达到容量阈值时,储能组件停止为负载供电,从而为下次太阳光变强时,吸收多余的太阳能,从而提升了光伏的利用效率。
在一些实施例中,步骤S10包括:根据所述通信站运行时所述储能组件的历史容量记录,动态调整所述储能组件的容量阈值,以使所述储能组件最大限度的吸收超出负载功率的能源。
在实际使用中,根据经验值设定的储能组件的容量阈值可能可以满足大部分的使用场景,但是通信站的使用场景会因其地理位置、天气情况或者通信站的用电情况而存在差异,因此根据经验值设定的容量阈值在使用过程中,需要动态调整,从而使得储能组件吸收太阳能的容量逐渐逼近容量上限,即储能组件可以最大限度地吸收超出负载功率的能源。
在一些实施例中,上述储能组件的历史容量记录例如储能组件的百分比容量极值记录,具体可以包括:日期、储能组件百分比容量极大值、极大值更新时间、储能组件百分比容量极小值、极小值更新时间等等。即步骤S10具体为:根据通信站运行时所述储能组件的历史百分比容量极值纪录,动态调整所述储能组件的容量阈值。
根据上述历史容量记录动态调整储能组件的容量阈值的过程如下:
第一步,判断储能组件容量极大值是否等于100%;
如果储能组件的容量极大值等于100%,则判断储能组件的容量极大值与储能组件的容量极小值之差是否大于α;如果储能组件的容量极大值于容量极小值的差大于α,则储能组件的容量阈值减β;如果储能组件的容量极大值于容量极小值的差小于或等于α,则储能组件的容量阈值保持不变;
第二步,如果储能组件的容量极大值不等于100%,则判断储能组件容量极大值是否在[期望容量,99%]范围内;
如果储能组件的容量极大值在[期望容量,99%]范围内,则储能组件的容量阈值保持不变;
第三步,如果储能组件的容量极大值不在[期望容量,99%]范围内,则判断储能组件的容 量极大值是否小于期望容量-1;
如果储能组件的容量极大值小于期望容量-1,则判断最近N天的储能组件的容量极大值的最大值是否小于期望容量-1;如果最近N天的储能组件的容量极大值的最大值小于期望容量-1,则储能组件的容量的阈值+max[β,max(最近N天的极大值)],即先确定最近N天的容量极大值的最大值,然后再从该最大值与β中选取较大的值,最后将选取的值加上储能组件的当前容量阈值,作为调整后的容量阈值;如果最近N天的储能组件的容量极大值的最大值大于或等于期望容量-1,则储能组件的容量阈值保持不变。
通过以上步骤,可以根据通信站的电源系统的实际情况,逐步动态把储能组件的容量阈值调整到最佳值,既可以最大限度的吸收超出负载功率的太阳能又可以让储能组件达到接近充满状态。
在一些实施例中,上述储能组件包括充放电状态和禁止充放电状态两种。通过对储能组件的容量进行监测,从而实现两种状态的切换。参照图3,图3是本申请通信站的电源控制方法二第实施例的流程示意图。上述步骤S20包括:
S21,所述储能组件的实时容量小于或等于所确定的储能组件的容量阈值,且所述储能组件处于放电时,控制所述储能组件进入禁止充放电状态;
本实施例中的储能组件处于放电,表示储能组件此时正在给负载供电;储能组件处于充放电状态时,能源模块可以对储能组件进行充电,或者储能组件可以为负载供电。由于储能组件在给负载供电,且容量已经达到确定的容量阈值时,则控制储能组件禁止充放电,即储能组件停止给负载供电,同时能源模块也停止给储能组件充电。由于储能组件给负载供电是在太阳能不足的情况下,所以储能组件停止给负载供电后,则由市电经过整流模块给负载供电。限制储能组件充电,是为了不让市电给负载供电时,对储能组件进行充电,从而储能组件可以预留空间,在下次太阳光变强时,用于吸收太阳能。
S22,所述储能组件处于禁止充放电状态,且第一能源模块的输出电流大于预设电流阈值,所述第二能源模块的输出电流小于预设电流阈值,控制所述储能组件进入充放电状态。
第一能源模块例如太阳能模块,第二能源模块例如市电的整流模块。通过第一能源模块和第二能源模块的输出电流,可以确定第一能源模块提供的能量比第二能源模块提供的能源强,也就是说,太阳能变强了,此时则控制储能组件进入充放电状态,储能组件可以吸收负载供应之外的多余太阳能。
本实施例通过基于储能组件的容量阈值对储能组件在充放电状态和禁止充放电状态之间进行切换,从而既保证了储能组件的容量过低而损坏储能组件的使用寿命,又使得储能组件容量不足时,不但避免了市电为其充电造成的浪费,而且充分吸收了太阳能,从而提升了光伏的利用效率。
在一些实施例中,储能组件处于充放电状态时,为了保证储能组件吸收的是太阳能,而不是电能,本实施例进行如下设置:
控制第二能源模块20,即整流模块的输出电压为从预设的第一电压阈值,和实时电压与预设的第二电压阈值的差值,选取较大的值。也就是max[母排电压-δ2,保底电压];其中实 时电压为检测到的直流输出端的实时电压,也称为母排电压;预设的第一电压阈值为保底电压,目的是为了防止储能组件放亏,或者是防止负载掉电;预设的第二电压阈值δ2为设置的经验值。
控制第一能源模块10,即太阳能模块的输出电压为所述第二能源模块20的输出电压与预设的第三电压阈值的和。预设的第三电压阈值δ1为设置的经验值。其中,δ1>δ2>0V。通过第一能源模块的输出电压设置,控制太阳能和市电给负载供电时,优先以太阳能给负载供电。
上述实施例中,对第二能源模块的输出电压进行控制时,其输出电压将根据母排电压的变化而动态调节,第二能源模块则根据第一能源模块的变化而变化,因此通过第一能源模块10的输出电压的调节控制,就可以使得为负载供电时的优先级顺序为:第一能源模块>储能组件>第二能源模块。
在一些实施例中,储能组件处于充放电时,设置储能组件充电最大电流,以防止能源模块对储能组件进行充电时,电流过大而损坏储能组件。
在一些实施例中,储能组件处于禁止充放电状态时,进行如下设置:
调节所述第二能源模块的输出电压,以使所述储能组件的充电电流处于预设的电流范围内;控制所述第一能源模块的输出电压为所述第二能源模块的输出电压与预设的第三电压阈值的和。
为了让储能组件的容量维持在容量阈值,设定储能组件的充电电流的电流目标值范围,即储能组件充电电流∈[-a,a];a根据系统的检测精度调整。前面已经提及,储能组件处于禁止充放电状态时,太阳能较弱无法为负载供电,只能由市电为负载供电。因此,为了让储能组件的充电电流维持在电流范围内,则通过调节第二能源模块,即整流模块的输出电压。具体地,判断检测到的充电电流是否在电流目标值范围内,如果在电流目标值范围内,则保持整流模块的输出电压值不变,如果小于下限(-a),则逐步增加整流模块的输出电压值,直到达到设定的电流目标值范围,如果检测到的充电电流大于电流范围上限(+a),则逐步减少整流模块的输出电压值,直到达到设定的电流目标值范围。预设的第三电压阈值为设置的经验值,而且该预设的第三电压阈值与第二电压阈值可以相等或不相等。
为了防止整流模块的输出电压过大,可设定一目标电压。当整流模块的输出电压逐步增加达到目标电压时,则不再增加。
另外,太阳能模块的输出电压则会跟随整流模块的输出电压变动,从而监测太阳能的变化,从而保证充放电状态的及时切换。
在一些实施例中,为了使得对储能组件的容量进行校准,以增加电源控制的准确性,本实施例增加了储能组件的长充状态,即通过第二能源对储能组件进行持续充电。
调节所述第二能源模块的输出电压,以使所述储能组件的充电电流达到预设的最大充电电流;其中,所述第二能源模块的输出电压增加至预设的第四电压阈值时,保持第四电压阈值的输出电压运行。
储能组件进入长充状态时,通过设定储能组件的最大充电电流,第二能源模块的输出电 压根据储能组件的最大充电电流进行调整。具体地,判断检测到的充电电流是否达到最大充电电流,如果达到,则保持整流模块的输出电压值不变,如果未达到,则逐步增加整流模块的输出电压值,直到达到设定的最大充电电流,如果检测到的充电电流大于最大充电电流,则逐步减少整流模块的输出电压值,直到达到设定的最大充电电流。预设的第四电压阈值为设置的经验值,而且该预设的第四电压阈值与第三电压阈值、第二电压阈值可以相等或不相等。
为了防止整流模块的输出电压过大,可设定一目标电压。当整流模块的输出电压逐步增加达到目标电压时,则不再增加。
在一些实施例中,进入以及退出储能组件的长充状态的触发条件包括:
S23,若预设的长充时间达到,且连续N1天储能组件的容量极大值小于开启长充容量阈值或者连续M1天没有进行第二能源长充,则控制储能组件进入长充状态,控制第二能源模块对所述储能组件进行长充。
S24,当所述储能组件持续充电T1小时,且所述储能组件的容量达到预设容量阈值,则控制储能组件退出长充状态。
充放电状态转换到市电长充状态:如果系统时间达到长充开始时间,并且连续N1天储能组件的容量极大值小于开启市电长充的容量阈值(比如90%)或者连续M1天没有进行市电长充,则退出充放电状态,进入市电长充状态。
禁止充放电状态转换到市电长充状态:如果系统时间达到长充开始时间,并且连续N1天储能组件的容量极大值小于开启市电长充的容量阈值(比如90%)或者连续M天没有进行市电长充,则退出禁止充放电状态,进入市电长充状态。
退出市电长充状态:在市电长充状态下,若满足长充结束条件,即充电时间≥T小时并且储能组件的容量为100%,则进入充放电状态。由于此时储能组件的容量为100%,因此不会进入禁止充放电状态,而是进入充放电状态。预设容量阈值为100%,当然也可以设置为其他的值。
上述实施例适用于市电平电价场景,而市电类型还存在市电峰谷电价场景。本申请应用于市电峰谷电价场景时,要使得谷电价为储能组件的充电的终止容量维持在一个充电终止的容量阈值,因此以下实施例中描述的容量阈值是指充电终止的容量阈值。
上述步骤S10包括:
在市电峰谷电价场景下,根据所述通信站运行时所述储能组件的历史容量变化值纪录中的天气环境,预测次日所述储能组件的容量变化值,并根据所预测的所述储能组件的容量变化值,调整所述储能组件的容量阈值。
上述历史容量变化值记录可包括:日期、天气因子、人潮因子、储能组件容量的白天极大值、储能组件容量的夜间极大值以及储能组件的容量变化值。
根据历史容量变化值记录中的天气环境预测次日储能组件的容量变化值的过程如下:
从记录中查找最近N2次天气因子和人潮因子与次日环境匹配的匹配记录,得到匹配的储能组件的容量变化记录;然后对得到的容量变化记录求平均,获得次日的太阳能存储容量 预测值。如果从记录中没有查找到天气因子和人潮因子的匹配记录,则选择最近一次储能组件容量变化记录作为次日的太阳能存储容量预测值,即预测的储能组件的容量变化值。
然后,根据所预测的所述储能组件的容量变化值,调整所述储能组件的容量阈值。一实施例中,根据预设的关系,计算获得储能组件的容量。具体如下:
终止充电的容量阈值=max[(期望容量-(预测的储能组件容量变化值/储能组件总容量)*100%),保底容量]。
其中,期望容量即期望的白天极大值,保底容量即保护设备用电安全的最低容量。
在一些实施例中,为了更准确地预测,历史容量变化值记录中储能组件容量变化值的准确性比较关键,而当储能组件容量的白天极大值等于100%时,可能会导致记录的储能组件的容量变化值存在比较大的偏差,因此需要对记录的容量变化值进行动态调整,具体的调整过程如下:
如果白天极大值等于100%并且白天极大值与夜间极大值之差大于θ,则储能组件容量变化值=[(白天极大值-夜间极大值)+τ]×储能总容量,其中θ、τ∈[1%,100%]。
如果白天极大值等于100%并且白天极大值与夜间极大值之差小于等于θ,则储能组件容量变化值=(白天极大值-夜间极大值)×储能总容量。
如果白天极大值小于100%,则储能组件容量变化值=(白天极大值-夜间极大值)×储能总容量。
在一些实施例中,上述储能组件包括充放电状态、禁止充放电状态、谷电价时段充电状态。通过对储能组件的容量以及峰谷电价时段进行监测,从而实现上述三种状态的切换。参照图4,图4是本申请通信站的电源控制方法第三实施例的流程示意图。上述步骤S20包括:
S25,所述储能组件处于充放电状态时,若进入谷电价时段且不满足长充的条件,则控制所述储能组件进入谷电价充电状态。
储能组件处于充放电状态时,储能组件既可以为负载进行放电,也可以能源模块对储能组件进行充电。为了保证储能组件吸收的是太阳能,而不是电能,在储能组件处于充放电状态下,进行如下设置:
控制第二能源模块,即整流模块的输出电压为从预设的第一电压阈值,和实时电压与预设的第二电压阈值的差值,选取较大的值。也就是max[母排电压-δ2,保底电压];其中实时电压为检测到的直流输出端的实时电压,也称为母排电压;预设的第一电压阈值为保底电压,目的是为了防止储能组件放亏,或者是防止负载掉电;预设的第二电压阈值δ2为设置的经验值。
控制第一能源模块,即太阳能模块的输出电压为所述第二能源模块的输出电压与预设的第三电压阈值的和。预设的第三电压阈值δ1为设置的经验值。其中,δ1>δ2>0V。通过第一能源模块的输出电压设置,控制太阳能和市电给负载供电时,优先以太阳能给负载供电。
上述实施例中,对第二能源模块的输出电压进行控制时,其输出电压将根据母排电压的变化而动态调节,第二能源模块则根据第一能源模块的变化而变化,因此通过第一能源模块的输出电压的调节控制,就可以使得为负载供电时的优先级顺序为:第一能源模块>储能组件> 第二能源模块。
在一些实施例中,储能组件处于充放电时,设置储能组件充电最大电流,以防止能源模块对储能组件进行充电时,电流过大而损坏储能组件。
根据上述内容可知,在储能组件处于充放电状态时,储能组件可能处于放电状态,且处于持续放电状态。因此,若进入谷电价时段且不满足长充的条件时,则控制储能组件进入谷电价充电状态,即通过市电对储能组件进行充电。
储能组件处于谷电价充电状态时,通过设定最大充电电流,第二能源模块的输出电压根据储能组件的最大充电电流进行调整。具体调整过程可参照第二实施例的调整方案实施。
S26、所述储能组件处于谷电价充电状态,且储能组件的实时容量达到所确定的储能组件的容量阈值,或者谷电价时段结束时,控制所述储能组件进入禁止充放电状态。
当太阳光较弱时,储能组件给负载供电,当储能组件的容量已经达到所确定的容量阈值时,则控制储能组件禁止充放电。当进入谷电价阶段时,因为电价低,此时可以控制储能组件进入谷电价充电状态,通过市电对储能组件进行充电,直到储能组件的容量达到所确定的容量阈值,则控制储能组件进入禁止充放电状态。或者在谷电价时段结束时,控制储能组件进入禁止充放电状态。通过确定的容量阈值,既保证了储能组件的容量不至于太低,又可以避免在峰电价时段给负载供电时,对储能组件进行充电,而且还可以预留最大的空间,在下次太阳光变强时,用于吸收太阳能。
S27,所述储能组件处于禁止充放电状态,且第一能源模块的输出电流大于预设电流阈值,所述第二能源模块的输出电流小于预设电流阈值,或者峰电价时段开始时,控制所述储能组件进入充放电状态。
第一能源模块例如太阳能模块,第二能源模块例如市电的整流模块。通过第一能源模块和第二能源模块的输出电流,可以确定第一能源模块提供的能量比第二能源模块提供的能源强,也就是说,太阳能变强了,此时则控制储能组件进入充放电状态,储能组件可以吸收负载供应之外的多余太阳能。
另外,若进入峰电价时段,也控制储能组件进入充放电状态。由于峰电价时段的电价较高,因此通过控制储能组件进入充放电状态,使得在太阳能不足时,储能组件为负载供电,从而可以达到节能目的。
在一些实施例中,为了使得对储能组件的容量进行校准,以增加电源控制的准确性,本实施例增加了储能组件的长充状态,即通过第二能源对储能组件进行持续充电。长充状态的进入或退出条件,以及长充状态时的控制逻辑,可参照前面第二实施例实施,区别仅在于:S28、若进入谷电价时段,且连续N2天储能组件的容量极大值小于开启长充容量阈值或者连续M2天没有进行第二能源长充,则控制储能组件进入长充状态,控制第二能源模块对所述储能组件进行长充,直到所述储能组件持续充电T2小时,且所述储能组件的容量达到预设容量阈值。本实施例中通过充分利用谷电价时段进行市电长充,达到节能目的。
本申请实施例相对于现有技术具有如下效果:
(1)本申请实施例在通信站的电源控制中,通过确定储能组件的容量阈值,并通过控制 能源模块以及储能组件的工作状态,使得储能组件的容量维持在容量基准值,从而可以让储能组件预留更多的容量空间,来吸收多余的太阳能,不但提升了太阳能的利用效率,而且还避免了其他能源的浪费,达到节能目的。
(2)可以根据通信站的电源系统的实际情况,逐步动态把储能组件的容量阈值调整到最佳值,既可以最大限度的吸收超出负载功率的太阳能又可以让储能组件达到接近充满状态。
(3)本申请实施例的电源控制方法通过相比后台网管的算法更简单的方案实现了通信站的电源控制,不但提升了太阳能的利用效率,而且该方法直接运行于每个通信站中,不但减少了通信站的电源对外部或后台网管的依赖,同时也降低了实现成本和实现难度,有利于本申请在更大范围内推广。
具体应用示例一
针对通信电源站点市电平电价场景提升光伏利用效率的策略进行说明。
站点配置说明:
5块550Wp光伏板,预估最大输出功率2100W;
1台3000W太阳能模块;
1台3000W整流器模块;
储能组件为常规锂电池,容量为100AH;
站点负载平均功耗1000W,最大功耗2000W。
通信电源系统对储能组件的充放电状态、禁止充放电状态和市电长充4种状态的控制和切换策略:
充放电状态的控制
1)控制参数设置
储能组件充电最大电流=0.5C10;(为参数设定值)
整流模块输出电压=max[母排电压-0.5V,46V];(保底电压为参数设定值,母排电压为实时检测值)
太阳能模块输出电压=整流模块输出电压+0.9V。
从设定条件可以得到输出优先级为:太阳能模块输出>储能组件输出>整流器输出。
保底电压的作用是为了防止把储能组件放亏,或是防止负载掉电。
2)进入充放电状态的条件
系统启动后,如果储能组件实时百分比容量大于储能组件容量基准值则进入充放电状态管理;
在禁止充放电状态管理,如果整流模块输出电流小于2A(根据系统的检测精度调整,主要用于判断整流模块不输出),太阳能输出模块大于2A,储能组件电流大于-1A,则进入充放电状态管理;
在市电长充状态管理,满足长充结束条件,即充电时间≥10小时并且储能组件容为100%则进入充放电状态管理;
3)退出充放电状态的条件
如果储能组件实时百分比容量小于等于储能组件百分比容量基准值并且储能组件为放电则退出充放电管理状态,进入禁止充放电管理状态;
如果系统时间达到长充开始时间,并且连续7天储能容量极大值小于90%或者连续15天没有进行市电长充,则退出充放电管理状态,进入市电长充管理状态。
禁止充放电状态的控制
1)控制参数设置
储能组件充电电流∈[-1A,1A];
整流模块输出的期望电压=54V;(为参数值)
太阳能模块输出电压=整流模块输出电压+0.9V。
2)进入禁止充放电状态的条件
系统启动后,如果储能组件实时百分比容量小于等于储能组件容量基准值则进入充放电状态管理;
在充放电状态管理,如果储能组件实时百分比容量小于等于储能组件容量基准值,并且储能组件电流<-2A,则进入禁止充放电状态管理;
3)退出禁止充放电状态的条件
如果整流模块输出电流小于2A(根据系统的检测精度调整,主要用于判断整流模块不输出),太阳能输出模块大于2A,储能组件大于1A,则退出禁止充放电管理状态;
如果系统时间达到16点,并且连续7天储能容量极大值小于90%或者连续15天没有进行市电长充,则退出禁止充放电管理状态,进入市电长充管理状态。
市电长充的控制
1)控制参数设置
设定市电长充最短时间=10小时;
储能组件充电最大电流=0.5C10;
整流模块输出的期望电压=54V;
太阳能模块输出电压=整流模块输出电压+0.9V。
2)进入市电长充状态的条件
在充放电状态或禁止充放电状态,如果系统时间达到16点,并且连续7天储能容量极大值小于90%或者连续15天没有进行市电长充,则进入市电长充状态。
3)退出市电长充状态的条件
满足长充结束条件,即充电时间≥10小时并且储能组件容为100%则退出市电长充状态;
系统对储能组件百分比容量基准值(即容量阈值)的动态调整策略:
1)储能组件百分比容量极值记录
记录内容:日期、储能组件百分比容量极大值、储能组件百分比容量极小值;
记录周期:为1天;
定格时间:在24点定格记录当天极值,并开启第二天的记录;
记录条数:7条;
保存方式:循环覆盖,并且系统掉电保存。
2)动态判断储能组件百分比容量基准值
如果储能组件容量极大值等于100%并且储能组件容量极大值与储能组件容量极小值之差大于10%,则储能组件容量基准值减5%;
如果储能组件容量极大值等于100%并且储能组件容量极大值与储能组件容量极小值之差小于等于10%,则储能组件容量基准值保持不变;
如果储能组件容量极大值是否在[95%,99%]范围内,则储能组件容量基准值保持不变;
如果最近7天的储能组件容量极大值的最大值是否小于等于94%,则储能组件容量基准值+max[5%,max(最近7天的极大值)];
如果最近7天的储能组件容量极大值的最大值是否大于94%,则储能组件容量基准值保持不变;
3)储能组件百分比容量基准值的说明
取值:默认值80%,范围[40%,90%];
通过以上步骤,可以根据通信电源系统的实际情况,逐步动态把储能组件百分比容量基准值调整到最佳值,即可以最大限度的吸收超出负载功率的太阳能又可以让储能组件达到接近充满状态。
具体应用示例二
针对通信电源市电峰谷电价场景提升光伏利用效率的策略进行说明:
站点配置说明:
5块550Wp光伏板,预估最大输出功率2100W;
1台3000W太阳能模块;
2台3000W整流器模块;
储能组件为常规锂电池,容量为200AH;
站点负载平均功耗1000W,最大功耗2000W。
峰谷时段:谷电价时段为23点到次日6点,峰电价时段为7点到12点,14点到22点,其余时段为平电价时段;
通信电源系统对储能组件的充放电状态、谷电价时段充电状态、禁止充放电状态和市电长充4种状态的控制和切换策略:
充放电状态的控制
1)控制参数设置
储能组件充电最大电流=0.5C10;(为参数设定值)
整流模块输出电压=max[母排电压-0.5V,46V];(保底电压为参数设定值)
太阳能模块输出电压=整流模块输出电压+0.9V;
从设定条件可以得到输出优先级为太阳能模块输出>储能组件输出>整流器输出。
保底电压的作用是为了防止把储能组件放亏,或是防止负载掉电。
2)进入充放电状态的条件
在禁止充放电状态管理,如果整流模块输出电流小于2A(根据系统的检测精度调整,主要用于判断整流模块不输出),太阳能输出模块大于2A,储能组件充电电流大于1A,则进入充放电状态管理;或者进入峰电价时段,则进入充放电状态管理;
在市电长充状态管理,满足长充结束条件,即充电时间谷电价时段并且储能组件容为100%则进入充放电状态管理;
3)退出充放电状态的条件
如果系统时间达到谷电价时段,并且连续7天储能容量极大值小于90%或者连续15天没有进行市电长充,则退出充放电管理状态,进入市电长充管理状态。
如果系统时间达到谷电价时段,但不是不满足进入市电长充条件,则退出充放电管理状态,进入谷电价时段充电状态。
谷电价时段充电状态的控制
1)控制参数设置
充电目标百分比容量=终止充电百分比容量基准值(动态调整)
储能组件充电电流=0.3C10;(为参数设定值)
整流模块输出的期望电压=54V;(为参数值)
太阳能模块输出电压=整流模块输出电压+0.9V。
2)进入谷电价时段充电状态的条件
在充放电状态,如果进入谷电价时段并且不满足进入市电长充状态的条件,则进入谷电价时段充电状态管理;
3)退出谷电价时段充电状态的条件
如果储能组件实时百分比容量达到储能组件终止充电百分比容量基准值,或者谷电价时段结束,则退出谷电价时段充电状态管理;
禁止充放电状态的控制
1)控制参数设置
储能组件充电电流∈[-1,1];(a根据系统的检测精度调整)
整流模块输出的期望电压=54V;(为参数值)
太阳能模块输出电压=整流模块输出电压+0.9V。
2)进入禁止充放电状态的条件
在谷电价时段充电状态,如果储能组件实时百分比容量达到储能组件终止充电百分比容量基准值,或者谷电价时段结束,则进入禁止充放电状态管理;
3)退出禁止充放电的状态
如果整流模块输出电流小于2A(根据系统的检测精度调整,主要用于判断整流模块不输 出),太阳能输出模块大于2A,储能组件电流大于1A,或者进入峰电价时段,则退出禁止充放电管理状态;
市电长充的控制
1)控制参数设置
设定市电长充最短时间=8小时;
储能组件充电最大电流=0.3C10;
整流模块输出的期望电压=54V;
太阳能模块输出电压=整流模块输出电压+0.9。
2)进入市电长充状态管理条件说明
在充放电状态,如果系统时间达到谷电价时段,并且连续7天储能容量极大值小于90%或者连续15天没有进行市电长充,则进入市电长充状态。
3)退出市电长充状态的条件
满足长充结束条件,即充电时间超过谷电价时段时长并且储能组件容为100%则退出市电长充状态;
系统对谷电价时段的终止充电百分比容量基准值(即容量阈值)动态调整策略:
1)储能组件容量变化值记录
记录内容为:日期、天气因子、人潮因子、储能组件容量的白天极大值、储能组件容量的夜间极大值以及储能组件的容量变化值;
记录频率:每天一次;
记录条数:30条;
2)储能组件容量变化值预测说明
从记录中查找最近3次天气因子和人潮因子的匹配记录,得到的3个储能组件容量变化 记录求平均,即为次日的太阳能存储容量预测值;如果没有,则从记录中查找最近2次天气因子和人潮因子的匹配记录,得到的2个储能组件容量变化记录求平均,即为次日的太阳能存储容量预测值;如果从记录中没有查找到天气因子和人潮因子的匹配记录,则选择最近一次储能组件容量变化记录作为为次日的太阳能存储容量预测值;
3)记录中储能组件容量变化值的调整策略
如果白天极大值等于100%并且白天极大值与夜间极大值之差大于10%,则储能组件容量变化值=[(白天极大值-夜间极大值)+5%]×200AH;α、β∈[1%,100%]。
如果白天极大值等于100%并且白天极大值与夜间极大值之差小于等于10%,则储能组件容量变化值=(白天极大值-夜间极大值)×200AH。
如果白天极大值小于100%,则储能组件容量变化值=(白天极大值-夜间极大值)×200AH。
4)预测结果的应用
终止充电百分比容量基准值=MAX[(95%-(预测储能组件容量变化值/200AH)*100%),40%]。
通过上述步骤可以根据通信电源系统的实际情况,逐步动态把储能组件终止充电百分比容量基准值调整到最佳值,在储能组件达到接近充满状态的同时,即可以充分利用超出负载功率的太阳能又可以最大限度的使用谷电价市电,该方法把对太阳能电量和负载用电量的预测转化为了对一天内累计的储能组件容量变化的预测,极大的减少了记录数据量,同时也极大的简化了预测算法,从而可以在通信站点侧完成部署。
以上所列举的仅为参考示例,为了避免冗余,这里不再一一列举,实际开发或运用中,可以根据实际需要灵活组合,但任一组合均属于本申请的技术方案,也就覆盖在本申请的保护范围之内。
参照图5,在一些实施例中,本申请提供一种通信站的电源控制装置,包括:
容量阈值确定模块30,配置为确定通信站的储能组件的容量阈值;
工作控制模块40,配置为基于所确定的所述储能组件的容量阈值,控制所述通信站的能源模块、所述储能组件的工作状态。
本实施例实现通信站的电源控制的原理和过程,请参照上述各实施例,在此不再赘述。
本申请还提供一种通信站,通信设备包括存储器、处理器,存储器上存储有处理程序,处理程序被处理器执行时实现上述任一实施例中的处理方法的步骤。
本申请还提供一种计算机可读存储介质,存储介质上存储有处理程序,处理程序被处理器执行时实现上述任一实施例中的处理方法的步骤。
在本申请提供的通信设备和计算机可读存储介质的实施例中,可以包含任一上述处理方法实施例的全部技术特征,说明书拓展和解释内容与上述方法的各实施例基本相同,在此不再做赘述。
本申请实施例还提供一种计算机程序产品,计算机程序产品包括计算机程序代码,当计 算机程序代码在计算机上运行时,使得计算机执行如上各种可能的实施方式中的方法。
可以理解,上述场景仅是作为示例,并不构成对于本申请实施例提供的技术方案的应用场景的限定,本申请的技术方案还可应用于其他场景。例如,本领域普通技术人员可知,随着系统架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
上述本申请实施例序号仅仅为了描述,不代表实施例的优劣。
本申请实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
本申请实施例设备中的单元可以根据实际需要进行合并、划分和删减。
在本申请中,对于相同或相似的术语概念、技术方案和/或应用场景描述,一般只在第一次出现时进行详细描述,后面再重复出现时,为了简洁,一般未再重复阐述,在理解本申请技术方案等内容时,对于在后未详细描述的相同或相似的术语概念、技术方案和/或应用场景描述等,可以参考其之前的相关详细描述。
在本申请中,对各个实施例的描述都各有侧重,某个实施例中没有详述或记载的部分,可以参见其它实施例的相关描述。
本申请技术方案的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本申请记载的范围。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在如上的一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端设备(可以是手机,计算机,服务器,被控终端,或者网络设备等)执行本申请每个实施例的方法。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时,全部或部分地产生按照本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络,或者其他可编程装置。计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质(例如,软盘、存储盘、磁带)、光介质(例如,DVD),或者半导体介质(例如固态存储盘Solid State Disk(SSD))等。
以上仅为本申请的可选实施例,并非因此限制本申请的专利范围,凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本申请的专利保护范围内。

Claims (13)

  1. 一种通信站的电源控制方法,其中,所述方法包括:
    确定所述通信站的储能组件的容量阈值;
    基于所确定的所述储能组件的容量阈值,控制所述通信站的能源模块、所述储能组件的工作状态。
  2. 如权利要求1所述的通信站的电源控制方法,其中,所述确定通信站的储能组件的容量阈值包括:
    根据所述通信站运行时所述储能组件的历史容量记录,动态调整所述储能组件的容量阈值,以使所述储能组件最大限度的吸收超出负载功率的能源。
  3. 如权利要求2所述的通信站的电源控制方法,其中,所述根据所述通信站运行时所述储能组件的历史容量记录,动态调整所述储能组件的容量阈值的步骤包括:
    在市电平电价场景下,根据所述通信站运行时所述储能组件的历史容量极值纪录,调整所述储能组件的容量阈值;或,
    在市电峰谷电价场景下,根据所述通信站运行时所述储能组件的历史容量变化值纪录中的天气环境,预测次日所述储能组件的容量变化值,并根据所预测的所述储能组件的容量变化值,调整所述储能组件的容量阈值。
  4. 如权利要求3所述的通信站的电源控制方法,其中,所述根据所预测的所述储能组件的容量变化值,调整所述储能组件的容量阈值的步骤之前,还包括:
    根据所述历史容量变化值记录中的白天容量极大值和夜间容量极大值,对所预测的所述储能组件的容量变化值进行修正。
  5. 如权利要求1所述的通信站的电源控制方法,其中,所述能源模块包括第一能源模块和第二能源模块,且所述第一能源模块的输出优先级高于第二能源模块的输出优先级;所述基于所确定的所述储能组件的容量阈值,控制所述通信站的能源模块、所述储能组件的工作状态的步骤包括:
    所述储能组件的实时容量小于或等于所确定的储能组件的容量阈值,且所述储能组件处于放电时,控制所述储能组件进入禁止充放电状态;或,
    所述储能组件处于谷电价充电状态,且储能组件的实时容量达到所确定的储能组件的容量阈值,或者谷电价时段结束时,控制所述储能组件进入禁止充放电状态;或,
    所述储能组件处于禁止充放电状态,且第一能源模块的输出电流大于预设电流阈值,所述第二能源模块的输出电流小于预设电流阈值,或者峰电价时段开始时,控制所述储能组件进入充放电状态。
  6. 如权利要求1所述的通信站的电源控制方法,其中,所述电源控制方法还包括:
    所述储能组件处于充放电状态时,若进入谷电价时段且不满足长充的条件,则控制所述储能组件进入谷电价充电状态。
  7. 如权利要求1所述的通信站的电源控制方法,其中,所述能源模块包括第一能源模块和第二能源模块,且所述第一能源模块的输出优先级高于第二能源模块的输出优先级;所述电源控制方法还包括:
    若预设的长充时间达到,且连续N1天储能组件的容量极大值小于开启长充容量阈值或者连续M1天没有进行第二能源长充,则控制第二能源模块对所述储能组件进行长充,直到所述储能组件持续充电T1小时,且所述储能组件的容量达到预设容量阈值;或,
    若进入谷电价时段,且连续N2天储能组件的容量极大值小于开启第二能源长充容量阈值或者连续M2天没有进行第二能源长充,则控制第二能源模块对所述储能组件进行长充,直到所述储能组件持续充电T2小时,且所述储能组件的容量达到预设容量阈值。
  8. 如权利要求1所述的通信站的电源控制方法,其中,所述能源模块包括第一能源模块、第二能源模块;所述电源控制方法还包括:
    所述储能组件处于充放电状态时,按照第一能源模块、储能组件、第二能源模块的输出优先级顺序对负载供电;或,
    所述储能组件处于充放电状态时,控制第二能源模块的输出电压为从预设的第一电压阈值,和实时电压与预设的第二电压阈值的差值,选取较大的值;控制第一能源模块的输出电压为所述第二能源模块的输出电压与预设的第三电压阈值的和。
  9. 如权利要求1所述的通信站的电源控制方法,其中,所述能源模块包括第一能源模块、第二能源模块;所述电源控制方法还包括:
    所述储能组件处于禁止充放电状态时,调节所述第二能源模块的输出电压,以使所述储能组件的充电电流处于预设的电流范围内;控制所述第一能源模块的输出电压为所述第二能源模块的输出电压与预设的第三电压阈值的和;
    其中,所述第二能源模块的输出电压增加至预设的第四电压阈值时,保持第四电压阈值的输出电压运行。
  10. 如权利要求1所述的通信站的电源控制方法,其中,所述能源模块包括第一能源模块、第二能源模块;所述电源控制方法还包括:
    所述储能组件处于第二能源长充状态时,调节所述第二能源模块的输出电压,以使所述储能组件的充电电流达到预设的最大充电电流;其中,所述第二能源模块的输出电压增加至预设的第四电压阈值时,保持第四电压阈值的输出电压运行。
  11. 一种通信站的电源控制装置,包括:
    容量阈值确定模块,配置为确定通信站的储能组件的容量阈值;
    工作控制模块,配置为基于所确定的所述储能组件的容量阈值,控制所述通信站的能源模块、所述储能组件的工作状态。
  12. 一种通信站,其中,所述通信站包括能源模块、储能组件、电源控制模块,所述电源控制模块包括处理器和存储器,所述存储器上存储有对能源模块和储能组件进行控制的程序,所述程序供所述处理器调用,执行权利要求1-10中任一项所述的电源控制方法。
  13. 一种计算机存储介质,其中,所述计算机存储介质存储有计算机处理程序,所述计算机处理程序供处理器调用,执行权利要求1-10中任一项所述的电源控制方法。
PCT/CN2023/116306 2022-09-29 2023-08-31 通信站及其电源控制方法、装置及计算机存储介质 WO2024066910A1 (zh)

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