A method for scheduling staggered power consumption, a station controller and a base station

Abstract

The application discloses a scheduling method for staggered power utilization, a station controller and a base station. The battery power supply strategy of the peak period of the commercial power price is adjusted, the starting time of the battery power supply is delayed, the total time length of the battery power supply process in the peak period of the commercial power price and the state of not charging and not discharging after the battery power supply is reduced, the risk of the base station downtime caused by the insufficient standby power supply capacity of the battery due to the abnormal commercial power condition of the base station during and after the battery power supply is reduced, and the reliability and safety of the staggered power utilization of the base station are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication power supply, in particular to a scheduling method for peak-shifting electricity use, a site controller and a base station. BACKGROUND

[0002] With the increasing tension of power supply, different countries and regions in the world have improved the electricity price during the peak period of electricity use through administrative, technical, economic and other means, and implemented high and low electricity prices during different electricity use periods. By peak-shifting electricity use, the peak load is transferred to the off-peak period, so that the periodic fluctuation of the power grid load becomes more balanced, which is beneficial to improve the utilization rate of power generation and power supply equipment, reduce the construction investment of power generation and power supply equipment, and optimize the allocation of power resources. Moreover, peak-shifting electricity use can improve the overall efficiency and benefit of power supply, save energy, and ultimately reduce electricity costs, which has great significance to electricity enterprises and social and economic development. SUMMARY

[0003] The scheduling method for peak-shifting electricity use, the site controller and the base station provided by the present application are used to improve the reliability and safety of peak-shifting electricity use.

[0004] In a first aspect, the present application provides a scheduling method for peak-shifting electricity use, which can include:

[0005] Firstly, whether to enter the peak period of electricity price is determined according to the set peak period of electricity price.

[0006] Specifically, according to the differences of countries and regions, economic development and power generation capacity, the situation of needing to peak-shift electricity use is different, and there can be multiple peak periods of electricity price. The peak period of electricity price can be set according to the actual situation. For example, 8:00-12:00 is the high electricity price period of city power, 17:00-21:00 is the high electricity price period of city power, 23:00-6:00 the next day is the low electricity price period of city power, and other times are the flat electricity price period of city power. Therefore, 8:00-12:00 and 17:00-21:00 can be set as the peak periods of electricity price of city power that need to peak-shift electricity use. Moreover, when there are multiple high electricity price periods of city power, a list of corresponding peak periods of electricity price of city power can be established. In the actual operation process, the list of peak periods of electricity price of city power can be round-patrolled to determine whether the current time enters the high electricity price period of city power, and when it is determined that the current time enters a certain high electricity price period of city power, it is determined that the peak period of electricity price of city power is entered.

[0007] In the non-peak period of electricity price, that is, in the flat electricity price period of city power or the low electricity price period of city power, city power is used for power supply. Moreover, further, if it is determined that the battery power is insufficient in the non-peak period of electricity price, the battery charging is started until the battery is fully charged.

[0008] When it is determined that the power grid price peak period is entered, the battery power supply is delayed to start, that is, the power grid power supply is still used at this time, so that the battery directly enters the no charging and no discharging state after entering the power grid price peak period.

[0009] Then, whether the start of peak-shaving power consumption condition is met is determined according to the remaining time of the power grid price peak period and the set battery reference backup power time. When it is determined that the start of peak-shaving power consumption condition is met, the battery power supply is started to replace the power grid power supply. For example, the battery reference backup power time is set to 2 hours in advance, and the total duration of the current power grid price peak period is 4 hours. When it is determined that the remaining time of the power grid price peak period is 2 hours and is equal to the set battery reference backup power time, it is determined that the start of peak-shaving power consumption condition is met, and the battery power supply is started to replace the power grid power supply, that is, the battery starts to supply power 2 hours after entering the power grid price peak period, and the start of peak-shaving power consumption is started.

[0010] Then, during the battery continuous power supply process, whether one of the following two conditions is met is determined: the discharge depth of the battery reaches a rated value, and the power grid price peak period ends. When it is determined that the discharge depth of the battery reaches the rated value or the power grid price peak period ends, the battery power supply is stopped, and the power grid power supply is switched.

[0011] Specifically, during the battery continuous power supply process, the battery power supply is stopped when it is determined that the power grid price peak period ends, so as to ensure that the peak-shaving power consumption ends before the power grid flat price period starts. During the battery continuous power supply process, the battery power supply is stopped when the discharge depth of the battery reaches the rated value, so as to ensure that the battery reserves a certain amount of power, so as to have sufficient backup power capability in the time period of the no charging and no discharging state after the battery stops supplying power, and avoid the risk of base station downtime in the case of abnormal power grid. Specifically, the rated value is the discharge depth value when the battery power supply ends, and the rated value can be between 30% and 50%, for example, can be 50%.

[0012] The peak-shaving power consumption scheduling method provided in the embodiments of the present application adjusts the battery power supply strategy in the power grid price peak period, delays the start time of the battery power supply, reduces the total time length of the battery power supply process in the power grid price peak period and the no charging and no discharging state after the battery power supply, reduces the risk of base station downtime due to insufficient backup power capability of the battery in the case of abnormal power grid during and after the battery power supply, and improves the reliability and safety of peak-shaving power consumption of the base station.

[0013] In a possible implementation manner of the present application, whether the start of peak-shaving power consumption condition is met can be determined according to the remaining time of the power grid price peak period and the set battery reference backup power time in the following manner.

[0014] The preset battery reference backup power time can be acquired, and the remaining time of the current peak power time period of the commercial power price can be calculated in real time; when it is determined that the remaining time of the peak power time period of the commercial power price is less than or equal to the preset battery reference backup power time, it is determined that the condition of starting the off-peak power consumption is met. For example, the preset battery reference backup power time is 2 hours, and the total duration of the current peak power time period of the commercial power price is 4 hours; when it is determined that the remaining time of the peak power time period of the commercial power price is 2 hours and is equal to the preset battery reference backup power time, it is determined that the condition of starting the off-peak power consumption is met.

[0015] In a possible implementation of the present application, the acquired battery reference backup power time can be specifically: the time used by the battery from full power to the rated value of the discharge depth when the battery is discharged for the last time during the peak power time period of the commercial power price. Specifically, the time used by the battery for the last time to be completely discharged (from full power to the rated value of the discharge depth) during the peak power time period of the commercial power price can be selected from the historical data of the battery discharge, and the time is taken as the reference and is taken as the battery reference backup power time.

[0016] Alternatively, the battery reference backup power time can also be determined in other ways, for example, the longest discharge time of the battery in the last period of time (for example, in the last month) is taken as the battery reference backup power time. The longest discharge time may occur in the peak power time period of the commercial power price, or may occur in the flat power time period or the low power time period of the commercial power price, which is not limited herein. The longest discharge time may occur when the battery is discharged from full power, or may occur when the battery is discharged from a certain discharge depth, which is not limited herein.

[0017] In the above off-peak power consumption scheduling method provided by the embodiments of the present application, the ideal situation is that the peak power time period of the commercial power price ends at the moment when the discharge depth of the battery reaches the rated value, but due to the changes of the real-time load of the base station and the actual power of the battery, it cannot be guaranteed that the peak power time period of the commercial power price ends exactly at the moment when the discharge depth of the battery reaches the rated value, and it is possible that the discharge depth of the battery reaches the rated value before the peak power time period of the commercial power price ends, and the battery stops supplying power and enters the state of not charging and not discharging.

[0018] Based on this, in a possible implementation of the present application, during the process of off-peak power consumption, that is, during the process of battery power supply instead of commercial power supply, the battery power supply time can also be adjusted according to the comparison between the updated backup power time of the battery and the remaining time of the peak power time period of the commercial power price, so as to shorten the time of the state of not charging and not discharging after the battery power supply during the peak power time period of the commercial power price as much as possible, and reduce the risk of the base station downtime due to the insufficient backup power capacity of the battery when the abnormal situation of the commercial power occurs during the time, thereby improving the reliability and safety of the off-peak power consumption of the base station. Specifically, after starting the battery power supply instead of the commercial power supply, the following steps can be further included:

[0019] determining whether the duration of starting battery power supply is equal to the set duration. Generally, at the initial stage of battery power supply, the working state of the battery is unstable, and the actual capacity of the battery cannot be accurately detected at this time. After the battery works for a period of time, for example, 20-30 minutes, the working state of the battery tends to be stable. Therefore, the set duration can be arbitrarily selected between 20 minutes and 30 minutes, for example, the set duration can be 30 minutes.

[0020] When it is determined that the duration of starting battery power supply is equal to the set duration, the actual standby time of the battery is determined according to the obtained current capacity of the battery and the real-time load data. Specifically, the obtained current capacity of the battery can be divided by the real-time load data to obtain the actual standby time of the battery. The obtained actual standby time of the battery is generally much greater than the reference standby time of the battery.

[0021] Then, it is determined whether the difference between the actual standby time of the battery and the current remaining time of the peak period of the commercial power price is less than the set time. The set time is related to the set discharge depth value, i.e., the rated value, at the end of the battery power supply. For example, when the discharge depth value, i.e., the rated value, at the end of the battery power supply is 50%, the set time can be the time length used for the discharge depth value of the battery from 50% to 100%.

[0022] When it is determined that the difference between the actual standby time of the battery and the current remaining time of the peak period of the commercial power price is greater than or equal to the set time, the battery continues to supply power. When it is determined that the difference between the actual standby time of the battery and the current remaining time of the peak period of the commercial power price is less than the set time, the battery power supply is suspended and the commercial power supply is switched to.

[0023] Then, it is determined whether the difference between the actual standby time of the battery and the current remaining time of the peak period of the commercial power price is equal to the set time; when it is determined that the difference between the actual standby time of the battery and the current remaining time of the peak period of the commercial power price is equal to the set time, the battery power supply is restored instead of the commercial power supply.

[0024] For example, the preset battery reference backup time is 2 hours, the time length for the discharge depth value of the battery from 50% to 100% is set as 1.5 hours, and the total time length of the peak period of the commercial power price is 4 hours. After 2 hours of entering the peak period of the commercial power price, the battery power supply is started to replace the commercial power supply. If the calculated actual backup time of the battery is 3.5 hours after 30 minutes of discharging of the battery, the current remaining time of the peak period of the commercial power price is 1.5 hours, the difference between the actual backup time of the battery and the current remaining time of the peak period of the commercial power price is 2 hours, which is greater than 1.5 hours, and the battery continues to supply power. If the calculated actual backup time of the battery is 2.5 hours after 30 minutes of discharging of the battery, the current remaining time of the peak period of the commercial power price is 1.5 hours, the difference between the actual backup time of the battery and the current remaining time of the peak period of the commercial power price is 1 hour, which is less than 1.5 hours, the battery power supply is suspended and the commercial power supply is switched to, and the commercial power supply is switched to until the current remaining time of the peak period of the commercial power price is 1 hour after 0.5 hours, the difference between the actual backup time of the battery and the current remaining time of the peak period of the commercial power price is 1.5 hours, and the difference is equal to the set time of 1.5 hours, and the battery power supply is restored to replace the commercial power supply.

[0025] In a possible implementation of the present application, after the battery power supply is started to replace the commercial power supply, the above-mentioned operation of determining whether the time length of starting the battery power supply is equal to the set time length can be directly performed. Alternatively, in another possible implementation of the present application, after the battery power supply is started to replace the commercial power supply, it can be determined whether the above-mentioned operation of determining whether the time length of starting the battery power supply is equal to the set time length needs to be performed according to the current capacity of the battery. Specifically, after the battery power supply is started to replace the commercial power supply, the following operations can also be included: determining whether the difference between the set total capacity data of the battery and the obtained current capacity of the battery is greater than a set value; when it is determined that the difference between the set total capacity data of the battery and the obtained current actual capacity of the battery is greater than the set value, performing the above-mentioned operation of determining whether the time length of starting the battery power supply is equal to the set time length; and when it is determined that the difference between the set total capacity data of the battery and the obtained current actual capacity of the battery is less than or equal to the set value, not performing the operation of determining whether the time length of starting the battery power supply is equal to the set time length, but the battery continues to supply power until the discharge depth of the battery reaches the rated value or the peak period of the commercial power price ends, the battery power supply is stopped and the commercial power supply is switched to.

[0026] Specifically, the total capacity data of the battery in the system can be considered as the capacity of the battery when it is fully charged. For example, when the SOC value is used to represent the capacity of the battery, SOC value = 1 represents the total capacity of the battery. When starting to start the battery power supply, the current capacity of the battery, i.e. the actual capacity of the battery, can be obtained. If the current capacity of the battery obtained at this time is small, for example, SOC = 0.6, and the difference between the total capacity of the battery and the current capacity of the battery is less than a set value, for example, 0.2, it indicates that the current capacity of the battery is insufficient to supply power to the end of the peak period of the commercial power price, and it is necessary to temporarily suspend the battery power supply for a period of time during the battery power supply process. Therefore, it is necessary to perform operations such as determining whether the length of time for starting the battery power supply is equal to the set length of time. If the current capacity of the battery obtained at this time is large, for example, SOC = 0.95, and the difference between the total capacity of the battery and the current capacity of the battery is greater than a set value, for example, 0.2, it indicates that the current capacity of the battery can supply power to the end of the peak period of the commercial power price, and it is not necessary to temporarily suspend the battery power supply for a period of time during the battery power supply process. Therefore, it can not be necessary to perform operations such as determining whether the length of time for starting the battery power supply is equal to the set length of time.

[0027] In a possible implementation of the present application, in order to ensure that the battery has sufficient power after peak-shifting electricity consumption, so as to be prepared for the period of time in the non-charging and non-discharging state after the battery stops supplying power, if an abnormal situation of commercial power occurs, the battery has sufficient standby power capability, and the risk of base station downtime is avoided, when the above-mentioned condition for starting peak-shifting electricity consumption is met, before starting the battery power supply to replace the commercial power supply, the following operations can also be included: determining whether the actual standby time of the battery is greater than a set time; since the set time is related to the set discharge depth value, i.e. the rated value, at the end of the battery power supply, for example, when the discharge depth value, i.e. the rated value, at the end of the battery power supply is 50%, the set time can be the length of time used for the discharge depth value of the battery from 50% to 100%. When it is determined that the actual standby time of the battery is greater than the set time, it indicates that the standby power capability of the battery can support peak-shifting electricity consumption, and the battery power supply is started to replace the commercial power supply; when it is determined that the actual standby time of the battery is less than or equal to the set time, it indicates that the standby power capability of the battery is insufficient, and the battery power supply is not started.

[0028] In a possible implementation of the present application, in order to ensure safe peak-shifting electricity consumption, when the above-mentioned condition for starting peak-shifting electricity consumption is met, before starting the battery power supply to replace the commercial power supply, the following operations can also be included: monitoring the state of the battery; determining whether the state of the battery appears an abnormal situation; specifically, the abnormal situation can include: battery high-temperature alarm, battery low-temperature alarm, battery hardware failure, battery cell failure alarm, battery voltage protection, battery current protection, battery smoke alarm, or battery water immersion alarm, etc. When it is determined that the state of the battery is normal, the battery power supply is started to replace the commercial power supply; when it is determined that the state of the battery appears an abnormal situation, it indicates that the battery cannot work normally, and the battery power supply is not started, i.e. the commercial power supply is continued until it is determined that the state of the battery is normal, and then the battery power supply is started to replace the commercial power supply.

[0029] In a possible implementation of the present application, in order to ensure safe peak-shaving power consumption, after the above-mentioned starting battery power supply instead of mains power supply, the method further comprises: monitoring the battery state; determining whether the battery state is abnormal; specifically, the abnormality can include: battery high temperature alarm, battery low temperature alarm, battery hardware failure, battery cell failure alarm, battery voltage protection, battery current protection, battery smoke alarm, or battery water immersion alarm, etc. When it is determined that the battery state is abnormal, it means that the battery cannot work normally, then the battery power supply is stopped and the mains power supply is switched to.

[0030] In a second aspect, the present application further provides a site controller, comprising a memory and one or more processors; wherein the memory stores computer program code, and the computer program code comprises computer instructions; when the computer instructions are executed by the processor, the site controller executes the scheduling method provided in the first aspect of the present application.

[0031] In a third aspect, the present application provides a base station, comprising the site controller and the battery provided in the second aspect of the present application. The base station provided in the present application can be applied in a wireless base station scenario. According to the mains, the battery and the load condition of the base station, the battery backup capacity of the base station is calculated during the mains price peak period. According to the load condition of the base station, the starting time of the battery power supply is delayed, the total time length of the battery power supply process during the mains price peak period and the state of not charging and not discharging after the battery power supply is reduced, the risk of the base station being down due to the insufficient battery backup capacity during the mains abnormal condition and after the battery power supply is improved, and the reliability and safety of the peak-shaving power consumption of the base station are improved.

[0032] The technical effects achieved by the above-mentioned second aspect and third aspect can refer to the technical effects achieved by any possible design of the first aspect described above, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 a schematic diagram of the existing peak-shaving power consumption scheduling method;

[0034] Figure 2 a schematic diagram of the overall flow of the peak-shaving power consumption scheduling method provided in the present application;

[0035] Figure 3 a schematic diagram of the peak-shaving power consumption scheduling method provided in the present application;

[0036] Figure 4 a schematic diagram of the specific flow of the peak-shaving power consumption scheduling method provided in the present application;

[0037] Figure 5Another specific flow diagram of the scheduling method for staggered electricity consumption provided by the embodiments of the present application is shown in FIG. 6.

[0038] Figure 6 Another specific flow diagram of the scheduling method for staggered electricity consumption provided by the embodiments of the present application is shown in FIG. 6.

[0039] Figure 7 Another specific flow diagram of the scheduling method for staggered electricity consumption provided by the embodiments of the present application is shown in FIG. 6.

[0040] Figure 8 Another specific flow diagram of the scheduling method for staggered electricity consumption provided by the embodiments of the present application is shown in FIG. 6. DETAILED DESCRIPTION

[0041] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings. However, the example embodiments can be implemented in various forms, and should not be understood as being limited to the embodiments described herein; on the contrary, these embodiments are provided to make the present application more comprehensive and complete, and to fully convey the ideas of the example embodiments to those skilled in the art. The same reference signs in the drawings represent the same or similar structures, and thus repeated descriptions thereof will be omitted. The expressions of position and direction described in the present application are described with reference to the drawings, but can be changed as needed, and the changes are included in the protection scope of the present application. The drawings of the present application are only used to show the relative position relationship and do not represent the real proportions.

[0042] It should be noted that specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways other than those described herein, and those skilled in the art can make similar substitutions without departing from the scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below. The subsequent description of the specification is a preferred embodiment for implementing the present application, and is intended to illustrate the general principles of the present application, rather than to limit the scope of the present application. The protection scope of the present application is defined by the appended claims.

[0043] In order to facilitate understanding of the embodiments of the present application, some terms related to the embodiments of the present application will be introduced first.

[0044] Site management unit (SMU): a device that can monitor and manage a communication power supply system and provide site monitoring functions. The SMU can have a display screen and a keyboard to realize human-computer interaction. The SMU can also have a serial communication interface, a controller area network (CAN) communication interface, and an Ethernet port to realize local or remote monitoring. In addition, the SMU can support monitoring and management of a full series of power supply systems, such as embedded, indoor, and outdoor power supply systems.

[0045] State of charge (SOC): the ratio of the remaining capacity (i.e., the amount of available charge) of a battery at a specified time to the capacity of the battery in a fully charged state (i.e., the amount of available charge in a fully charged state). The SOC is usually expressed in percentage. The value range of the SOC is 0-1. When SOC = 0, it indicates that the battery is completely discharged. When SOC = 1, it indicates that the battery is fully charged.

[0046] Depth of discharge (DOD): the percentage of the discharged capacity of a battery to the rated capacity of the battery. The DOD is used to measure the amount of released charge. The DOD can be expressed in percentage.

[0047] Reference Figure 1 The current peak-shaving power consumption scheduling method starts the battery power supply function when entering the high electricity price period of the power grid. When the battery is discharged to a certain capacity, the battery power supply is ended, and the battery enters a state of not charging and not discharging. After the end of the high electricity price period of the power grid and the entry of the flat electricity price period or the low electricity price period of the power grid, the battery charging is started until the battery is fully charged. If an abnormal situation occurs in the power grid during the time period of the state of not charging and not discharging of the battery in the high electricity price period of the power grid, the base station may be out of service due to insufficient battery backup capacity, which affects the normal operation of customer services and income during the peak period of customer services.

[0048] Therefore, the embodiments of the present application provide a new peak-shaving power consumption scheduling method, which adjusts the battery power supply strategy in the high electricity price period of the power grid, controls the start time of the delayed battery power supply, reduces the risk of the base station being out of service due to the abnormality of the power grid during and after the battery power supply period, and improves the reliability and safety of the peak-shaving power consumption of the base station.

[0049] The terms used in the following embodiments are only for the purpose of describing the specific embodiments and are not intended to be limiting on the present application. As used in the specification and the appended claims of the present application, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that “at least one” as used in the following embodiments refers to one, two, or more than two.

[0050] Reference being made in this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" or "in some embodiments" or "in other embodiments" or "in some implementations" or "in other implementations" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments necessarily mutually exclusive of other embodiments. The terms "including", "comprising" and variations thereof are meant to encompass the items listed thereafter, but do not exclude other items. The terms "a", "an" and "the" are meant not to exclude pluralities or multiplicities, unless otherwise indicated.

[0051] Referring to Figure 2 In one embodiment provided in the application, the scheduling method for staggered power utilization can include the following steps:

[0052] S1, determining whether to enter the peak period of the power price according to the set peak period of the power price.

[0053] Specifically, due to the differences in the country and region, the differences in the economic development and the power generation capacity, the situations requiring staggered power utilization are different, and there can be multiple peak periods of the power price. The peak period of the power price can be set according to the actual situation.

[0054] Referring to Figure 3 For example, the time period from 8:00 to 12:00 is the high power price time period of the power, the time period from 17:00 to 21:00 is the high power price time period of the power, the time period from 23:00 to 6:00 of the next day is the low power price time period of the power, and the other time periods are the flat power price time periods of the power. Then, the two high power price time periods of the power, i.e., the time period from 8:00 to 12:00 and the time period from 17:00 to 21:00, can be set as the peak periods of the power price requiring staggered power utilization.

[0055] In addition, when there are multiple high power price time periods of the power, a list of the corresponding peak periods of the power price can be established. In the actual operation process, the list of the peak periods of the power price can be roundly patrolled to determine whether the current time enters the high power price time period of the power. When it is determined that the current time enters a certain high power price time period of the power, it is determined that the peak period of the power price is entered.

[0056] When it is determined that the peak period of the power price is entered, step S2 is performed. When it is determined that it is not the peak period of the power price, i.e., it is the flat power price time period of the power or the low power price time period of the power, power supply by the power is adopted. In addition, further, when it is determined that the battery power is insufficient in the non-peak period of the power price, the battery charging is started until the battery is fully charged.

[0057] S2, delaying the start of power supply by the battery, i.e., power supply by the power is still adopted at this time, so that the battery directly enters the state of not charging and not discharging after entering the peak period of the power price.

[0058] S3, determining whether the starting off-peak power consumption condition is met according to the remaining time of the peak power price period and the set battery reference backup power time.

[0059] Alternatively, the set battery reference backup power time can be obtained, and the remaining time of the current peak power price period can be calculated in real time; when it is determined that the remaining time of the peak power price period is less than or equal to the set battery reference backup power time, it is determined that the starting off-peak power consumption condition is met. For example, the set battery reference backup power time is 2 hours, and the total duration of the current peak power price period is 4 hours; when it is determined that the remaining time of the peak power price period is 2 hours and is equal to the set battery reference backup power time, it is determined that the starting off-peak power consumption condition is met.

[0060] Alternatively, the obtained battery reference backup power time can be specifically: the time used by the battery from full power to the discharge depth reaching a rated value (the rated value will be introduced below) during the peak power price period. Specifically, the time used by the battery for complete depth discharge (from full power discharge to the discharge depth reaching the rated value) during the peak power price period can be selected from the historical data of the battery discharge, and the time is used as a reference and is taken as the battery reference backup power time.

[0061] Alternatively, the battery reference backup power time can also be determined in other ways, for example, the longest discharge time of the battery in the recent period (for example, in the recent month) is taken as the battery reference backup power time. The longest discharge time may occur during the peak power price period, or may occur during the flat power price period or the low power price period, which is not limited here. The longest discharge time may start from full power of the battery, or may start from a certain discharge depth of the battery, which is not limited here.

[0062] When it is determined that the starting off-peak power consumption condition is met, step S4 is performed.

[0063] S4, starting battery power supply instead of power supply. For example, the set battery reference backup power time is 2 hours, and the total duration of the current peak power price period is 4 hours; when it is determined that the remaining time of the peak power price period is 2 hours and is equal to the set battery reference backup power time, it is determined that the starting off-peak power consumption condition is met, and the battery power supply is started instead of the power supply, that is, the battery starts to supply power after entering the peak power price period for 2 hours, and the off-peak power consumption is started.

[0064] S5, determining whether any one of the following conditions is met during the battery continuous power supply process: the discharge depth of the battery reaches a rated value and the peak period of the electricity price ends; when the discharge depth of the battery reaches the rated value or the peak period of the electricity price ends, performing step S6.

[0065] S6, stopping the battery power supply and switching to the mains power supply.

[0066] Specifically, stopping the battery power supply when the peak period of the electricity price ends during the battery continuous power supply process is to ensure that the peak load shifting is completed before the start of the flat electricity price period. Stopping the battery power supply when the discharge depth of the battery reaches the rated value during the battery continuous power supply process is to ensure that the battery retains a certain amount of power to provide backup power in the time period when the battery is in the state of not charging and not discharging after the battery power supply is stopped, so as to avoid the risk of base station downtime in the case of abnormal mains power supply. Specifically, the rated value is the discharge depth value when the battery power supply is stopped, and the rated value can be between 30% and 50%, for example, 50%.

[0067] The peak load shifting scheduling method provided by the embodiments of the present application adjusts the battery power supply strategy in the peak period of the electricity price, delays the start time of the battery power supply, reduces the total time of the battery power supply process in the peak period of the electricity price and the state of not charging and not discharging after the battery power supply, and reduces the risk of base station downtime due to insufficient backup power of the battery in the case of abnormal mains power supply during and after the battery power supply, thereby improving the reliability and safety of peak load shifting of the base station.

[0068] In the above peak load shifting scheduling method provided by the embodiments of the present application, the ideal situation is that the peak period of the electricity price ends at the moment when the discharge depth of the battery reaches the rated value. However, due to the changes in real-time load of the base station and the actual power of the battery, it is not possible to guarantee that the peak period of the electricity price ends exactly at the moment when the discharge depth of the battery reaches the rated value. It is possible that the discharge depth of the battery reaches the rated value before the peak period of the electricity price ends, and the battery stops supplying power and enters the state of not charging and not discharging.

[0069] Based on this, referring to Figure 4 In an embodiment of the present application, during the peak load shifting process, that is, during the process of replacing the mains power supply with the battery power supply, the battery power supply time can also be adjusted according to the comparison between the updated backup power time of the battery and the remaining time of the peak period of the electricity price, so as to shorten the time of the state of not charging and not discharging after the battery power supply in the peak period of the electricity price as much as possible, and reduce the risk of base station downtime due to insufficient backup power of the battery in the case of abnormal mains power supply during this time, thereby improving the reliability and safety of peak load shifting of the base station. Specifically, after step S4, the following step can also be included:

[0070] S41, determine whether the duration of starting battery power supply is equal to the set duration. Generally, at the initial stage of battery power supply, the working state of the battery is not stable, and at this time, the actual capacity of the battery cannot be accurately detected. After the battery works for a period of time, for example, 20-30 minutes, the working state of the battery tends to be stable. Therefore, the set duration can be arbitrarily taken as 20-30 minutes, for example, the set duration can be taken as 30 minutes.

[0071] When it is determined that the duration of starting battery power supply is equal to the set duration, step S42 is performed.

[0072] S42, determine the actual battery backup time according to the obtained current capacity of the battery and the real-time load data. Specifically, the obtained current capacity of the battery can be divided by the real-time load data to obtain the actual battery backup time, and the obtained actual battery backup time is generally much greater than the reference battery backup time.

[0073] S43, determine whether the difference between the actual battery backup time and the current remaining time of the peak period of the commercial power price is less than the set time. The set time is related to the set discharge depth value, i.e., the rated value, at the end of battery power supply. For example, when the discharge depth value, i.e., the rated value, at the end of battery power supply is 50%, the set time can be the time length used for the discharge depth value of the battery from 50% to 100%.

[0074] When it is determined that the difference between the actual battery backup time and the current remaining time of the peak period of the commercial power price is greater than or equal to the set time, the battery continues to supply power; when it is determined that the difference between the actual battery backup time and the current remaining time of the peak period of the commercial power price is less than the set time, step S44 is performed.

[0075] S44, suspend the battery power supply and switch to the commercial power supply.

[0076] S45, determine whether the difference between the actual battery backup time and the current remaining time length of the peak period of the commercial power price is equal to the set time; when it is determined that the difference between the actual battery backup time and the current remaining time length of the peak period of the commercial power price is equal to the set time, step S46 is performed.

[0077] S46, restore the battery power supply instead of the commercial power supply.

[0078] For example, the preset battery reference backup time is 2 hours, the preset time of the discharge depth value of the battery from 50% to 100% is 1.5 hours, and the total time of the peak period of the current power supply price is 4 hours. After entering the peak period of the power supply price for 2 hours, the battery power supply is started to replace the power supply. If the calculated actual backup time of the battery is 3.5 hours after the battery is discharged for 30 minutes, and the current remaining time of the peak period of the power supply price is 1.5 hours at this time, the difference between the actual backup time of the battery and the current remaining time of the peak period of the power supply price is 2 hours, which is greater than 1.5 hours. Therefore, the battery continues to supply power. If the calculated actual backup time of the battery is 2.5 hours after the battery is discharged for 30 minutes, and the current remaining time of the peak period of the power supply price is 1.5 hours at this time, the difference between the actual backup time of the battery and the current remaining time of the peak period of the power supply price is 1 hour, which is less than the preset time of 1.5 hours. Therefore, the battery power supply is suspended and the power supply is switched to the power supply until the current remaining time of the peak period of the power supply price is 1 hour after 0.5 hours. Therefore, the difference between the actual backup time of the battery and the current remaining time of the peak period of the power supply price is 1.5 hours, which is equal to the preset time of 1.5 hours. Therefore, the battery power supply is restored to replace the power supply.

[0079] Alternatively, in one embodiment of the present application, the above steps S41-S46 can be directly executed after step S4 is executed.

[0080] Alternatively, with reference to Figure 5 In another embodiment of the present application, whether the above steps S41-S46 need to be executed can be determined according to the current capacity of the battery after step S4 is executed. Specifically, after the battery power supply is started to replace the power supply in step S4, the following steps can be further included:

[0081] S51, determine whether the difference between the preset total capacity data of the battery and the acquired current capacity of the battery is greater than a preset value; when it is determined that the difference between the preset total capacity data of the battery and the acquired current actual capacity of the battery is greater than the preset value, the steps S41-S46 are executed; when it is determined that the difference between the preset total capacity data of the battery and the acquired current actual capacity of the battery is less than or equal to the preset value, the steps S41-S46 are not executed, and the battery continues to supply power until step S5 is executed.

[0082] Specifically, the total capacity data of the battery in the system can be considered as the capacity of the battery when it is fully charged, for example, when the SOC value is used to represent the capacity of the battery, SOC value = 1 indicates the total capacity of the battery. When starting to start the battery power supply, the current capacity of the battery, i.e. the actual capacity of the battery, can be obtained. If the current capacity of the battery obtained at this time is small, for example, SOC = 0.6, and the difference between the total capacity of the battery is less than a set value, for example, 0.2, it indicates that the current capacity of the battery is insufficient to supply power to the end of the peak period of the power supply price, and it is necessary to temporarily stop the battery power supply for a period of time during the battery power supply process. Therefore, step S41 and the subsequent steps need to be performed. If the current capacity of the battery obtained at this time is large, for example, SOC = 0.95, and the difference between the total capacity of the battery is greater than a set value, for example, 0.2, it indicates that the current capacity of the battery can supply power to the end of the peak period of the power supply price, and it is not necessary to temporarily stop the battery power supply for a period of time during the battery power supply process. Therefore, steps S41-S46 can not be performed.

[0083] Referring to Figure 6 In an embodiment of the present application, in order to ensure that the battery has sufficient power after staggered peak electricity consumption, in case of abnormal conditions of the power supply, the battery has sufficient standby power to avoid the risk of base station downtime during the period of no charging and no discharging after the battery stops supplying power, when it is determined in step S4 that the condition for starting staggered peak electricity consumption is met, before starting the battery power supply to replace the power supply, the following steps can also be included:

[0084] S61, determine whether the actual standby time of the battery is greater than the set time; since the set time is related to the set discharge depth value, i.e. the rated value, at the end of the battery power supply, for example, when the discharge depth value, i.e. the rated value, at the end of the battery power supply is 50%, the set time can be the time length used by the discharge depth value of the battery from 50% to 100%.

[0085] When it is determined that the actual standby time of the battery is greater than the set time, it indicates that the standby power of the battery can support staggered peak electricity consumption, and step S4 is performed. When it is determined that the actual standby time of the battery is less than or equal to the set time, it indicates that the standby power of the battery is insufficient, and step S62 is performed.

[0086] S62, do not start the battery power supply.

[0087] Referring to Figure 7 In an embodiment of the present application, in order to ensure safe staggered peak electricity consumption, when it is determined in step S4 that the condition for starting staggered peak electricity consumption is met, before starting the battery power supply to replace the power supply, the following steps can also be included:

[0088] S71, monitor the state of the battery;

[0089] S72, determine whether the battery state appears abnormal condition; specifically, the abnormal condition can include: battery high temperature warning, battery low temperature warning, battery hardware failure, battery cell failure warning, battery voltage protection, battery current protection, battery smoke warning, or battery water immersion warning, etc.

[0090] When it is determined that the battery state is normal, step S4 is executed; when it is determined that the battery state appears abnormal condition, it indicates that the battery cannot work normally, and then step S73 is executed.

[0091] S73, do not start the battery power supply, that is, continue to use the mains power supply until it is determined that the battery state is normal, and then start to execute step S4.

[0092] Reference Figure 8 In an embodiment of the present application, in order to ensure safe peak-shaving power consumption, after the battery power supply is started to replace the mains power supply in step S4, the following steps can also be included:

[0093] S81, monitor the battery state;

[0094] S82, determine whether the battery state appears abnormal condition; specifically, the abnormal condition can include: battery high temperature warning, battery low temperature warning, battery hardware failure, battery cell failure warning, battery voltage protection, battery current protection, battery smoke warning, or battery water immersion warning, etc.

[0095] When it is determined that the battery state appears abnormal condition, it indicates that the battery cannot work normally, and then step S83 is executed.

[0096] S83, stop the battery power supply and switch to the mains power supply.

[0097] Based on the same inventive concept, the embodiments of the present application also provide a site controller, which comprises a memory and one or more processors; wherein the memory stores computer program code, and the computer program code comprises computer instructions; when the computer instructions are executed by the processor, the site controller executes the above-mentioned scheduling method provided by the embodiments of the present application.

[0098] Based on the same inventive concept, the embodiment of the application further provides a base station comprising the above-mentioned site controller and battery provided by the embodiment of the application. The base station provided by the embodiment of the application can be applied in a wireless base station scenario. The site controller calculates the battery backup capability of the base station according to the mains, the battery and the load condition of the base station, delays the start of the staggered power utilization scheduling, that is, delays the start time of the battery power supply, reduces the total time length of the battery power supply process and the state of not charging and not discharging after the battery power supply in the mains peak period, reduces the risk that the base station is down due to the insufficient battery backup capability during the mains abnormal condition and after the battery power supply, and improves the staggered power utilization reliability and safety of the base station.

[0099] Obviously, various modifications and variations of the present application can be made by those skilled in the art without departing from the scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A method for scheduling electricity during off-peak hours, characterized in that, include: Determine whether to enter the peak electricity price period based on the set peak electricity price period; When it is determined that the peak period of the mains electricity price has arrived, the start of battery power supply is delayed, and the remaining time of the peak period of the mains electricity price and the set battery reference backup time are used to determine whether the conditions for starting off-peak electricity consumption are met. When it is determined that the conditions for starting off-peak electricity consumption are met, the battery power supply is activated to replace the mains power supply. When the battery discharge depth reaches the rated value or the peak period of the mains electricity price is determined to end, the battery power supply is stopped and the mains power supply is switched to. After activating the battery power supply to replace the AC power supply, the following is also included: Determine whether the duration of battery power supply is equal to the set duration; When it is determined that the duration for starting the battery power supply is equal to the set duration, the actual backup power time of the battery is determined based on the current battery capacity and real-time load data. When the difference between the actual backup time of the battery and the current remaining time of the peak period of the mains electricity price is less than a set time, the battery power supply is suspended and switched to the mains power supply until the difference between the actual backup time of the battery and the current remaining time of the peak period of the mains electricity price is equal to the set time, at which point the battery power supply is restored to replace the mains power supply.

2. The scheduling method as described in claim 1, characterized in that, The step of determining whether the conditions for activating off-peak electricity consumption are met based on the remaining time during the peak electricity price period and the set battery reference backup time includes: When the remaining time of the peak period of the mains electricity price is less than or equal to the set battery reference backup time, it is determined that the conditions for starting off-peak electricity consumption are met.

3. The scheduling method as described in claim 2, characterized in that, The set battery reference backup time is the time taken from the battery starting to supply power from full charge to the battery's depth of discharge reaching the rated value during peak electricity price periods.

4. The scheduling method according to any one of claims 1-3, characterized in that, When activating the battery power supply to replace the mains power supply, the following is also included: Determine whether the difference between the set total battery capacity data and the obtained current battery capacity is greater than the set value; If the difference between the set total battery capacity data and the obtained current actual battery capacity is greater than the set value, it is determined whether the duration for starting the battery power supply is equal to the set duration.

5. The scheduling method according to any one of claims 1-3, characterized in that, Before activating the battery power supply to replace the mains power supply when the conditions for starting off-peak electricity consumption are met, the process also includes: Determine whether the actual backup power time of the battery is greater than the set time; If the actual backup time of the battery is determined to be less than or equal to the set time, the battery power supply will not be activated.

6. The scheduling method according to any one of claims 1-3, characterized in that, Before activating the battery power supply to replace the mains power supply when the conditions for starting off-peak electricity consumption are met, the process also includes: Monitor the battery status to determine if any abnormalities have occurred in the battery status; If an abnormal condition is detected in the battery, the battery power supply will not be activated.

7. The scheduling method according to any one of claims 1-3, characterized in that, After activating the battery power supply to replace the AC power supply, the following is also included: Monitor battery status to determine if any abnormalities have occurred. When it is determined that the battery is in an abnormal state, the battery power supply is stopped and the mains power supply is switched.

8. The scheduling method as described in claim 7, characterized in that, The abnormal conditions include: battery high temperature alarm, battery low temperature alarm, battery hardware failure, cell failure alarm, battery voltage protection, battery current protection, battery smoke alarm, or battery water immersion alarm.

9. A site controller, characterized in that, It includes a memory and one or more processors; wherein the memory stores computer program code, the computer program code including computer instructions; when the computer instructions are executed by the processor, the site controller performs the scheduling method as described in any one of claims 1 to 8.

10. A base station, characterized in that, Includes the site controller and battery as described in claim 9.

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