CN111917122B - Peak clipping and valley filling power supply control method for communication base station - Google Patents
Peak clipping and valley filling power supply control method for communication base station Download PDFInfo
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- CN111917122B CN111917122B CN202010611374.2A CN202010611374A CN111917122B CN 111917122 B CN111917122 B CN 111917122B CN 202010611374 A CN202010611374 A CN 202010611374A CN 111917122 B CN111917122 B CN 111917122B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/0071—Regulation of charging or discharging current or voltage with a programmable schedule
Abstract
A peak clipping and valley filling power supply control method of a communication base station comprises the following steps: step S11: whether a control instruction is received; step S12: detecting and judging whether electricity exists in a power grid; step S13: the controller controls a base station power supply to supply power to a base station load and controls an alternating current side connected with a power grid to be switched on and off; step S14: judging whether the AC side switch is disconnected or not; step S15: judging whether the voltage of a base station power supply is too low; step S16: if the AC side switch is not disconnected, the controller sends an alarm signal to a control center; step S17: judging whether the power grid has an incoming call; step S18: the controller controls the base station power supply to stop discharging; step S20: and executing the control instruction sent by the controller. Therefore, the base station power supply of the communication base station can be reasonably utilized, the peak clipping and valley filling of a power grid are realized, the effect of the base station power supply is greatly exerted, and the benefit is improved.
Description
Technical Field
The invention relates to the technical field of base station power supplies of communication base stations, in particular to a peak clipping and valley filling power supply control method of a communication base station.
Background
In order to ensure uninterrupted communication, the base station needs to be equipped with an emergency standby power supply in addition to normal mains supply, so as to ensure that the base station can work normally when the mains supply is abnormal.
The standby power supply of the existing base station is mainly a lead-acid battery. With the development of lithium batteries, the cost is reduced, and the application to base stations becomes possible. Compared with a lead-acid battery, the lithium battery is more environment-friendly, the service life is longer, and the lithium battery occupies a smaller area and is lighter in weight when the capacity is the same. Moreover, the lithium battery is convenient for monitoring the service state of the battery.
At present, a base station power supply is generally just used as a standby power supply, and the utilization rate is low. In addition, the electric supply needs are greatly different in different times, such as working days or non-working days, the morning, noon, afternoon and evening of the same day; in this way, the base station power supply is reasonably used in different power consumption periods, peak clipping and valley filling of a power grid are realized, and the effect of the base station power supply is exerted to the maximum extent.
Disclosure of Invention
In view of the above, the present invention provides a method for controlling a peak clipping and valley filling power supply of a communication base station, which reasonably utilizes a base station power supply of the communication base station, realizes peak clipping and valley filling of a power grid, greatly exerts the function of the base station power supply, and improves the yield, so as to solve the above problems.
A peak clipping and valley filling power supply control method of a communication base station comprises the following steps: step S11: judging whether a control instruction sent by a controller is received; if the control instruction is not received, the step S12 is executed, and if the control instruction is received, the step S20 is executed; step S12: detecting and judging whether the power grid has electricity, if so, entering a step S20, otherwise, entering a step S13; step S13: the controller controls a base station power supply to supply power to a base station load and controls an alternating current side connected with a power grid to be switched on and off; step S14: judging whether the AC side switch is disconnected, if so, entering a step S15, otherwise, entering a step S16; step S15: detecting the voltage of the base station power supply and judging whether the voltage of the base station power supply is too low, if so, entering a step S18, otherwise, entering a step S17; step S16: if the AC side switch is not disconnected, the controller sends an alarm signal to a control center; step S17: judging whether the power grid is incoming, if so, entering the step S20, otherwise, returning to the step S15; step S18: the controller controls the power supply of the base station to stop discharging, and the controller sends an alarm signal of electric quantity exhaustion to the control center; step S20: and executing the control instruction sent by the controller.
Further, before the step S11, setting a first total voltage threshold of the base station power supply and a first cell voltage threshold of the battery unit; in step S15, if the total voltage of the base station power supply is less than the first total voltage threshold or the voltage of any battery unit is less than the first cell voltage threshold, it is determined that the voltage of the base station power supply is too low; and if the total voltage of the base station power supply is greater than or equal to the first total voltage threshold value and the voltage of any battery unit is greater than or equal to the first monomer voltage threshold value, judging that the voltage of the base station power supply is normal.
Further, the AC side switch is a relay.
Further, in step S16, if it is detected that the ac side switch is not turned off for three consecutive times, the controller sends an alarm signal to a control center.
Further, the step S20 includes the steps of: step S21: receiving a control instruction sent by a controller; step S22: judging whether the control instruction is a charging instruction or a discharging instruction; if the command is a charging command, the step S40 is performed, and if the command is a discharging command, the step S30 is performed; step S30: executing a discharging instruction; step S40: and executing the charging instruction.
Further, the step S30 includes the steps of: step S31: the bidirectional inverter receives a discharge instruction sent by the controller, and the base station power supply simultaneously supplies power to the base station load; step S32: the base station power supply discharges, and the bidirectional inverter converts direct current of the base station power supply into alternating current transmitted by a power grid, so that the base station power supply transmits power to the power grid; step S33: detecting the voltage of the base station power supply and judging whether the voltage of the base station power supply is too low, if so, entering a step S36, otherwise, entering a step S34; step S36: the controller controls the power supply of the base station to stop discharging and switches the power supply from the power grid to the base station, and meanwhile, the controller sends an alarm signal of electric quantity exhaustion to the control center; step S34: continuously monitoring a control instruction sent by a controller; step S35: and judging whether the control command is a discharge command, if so, returning to the step S32, and otherwise, entering the step S20.
Further, before step S31, setting a second total voltage threshold of the base station power supply and a first cell voltage threshold of the battery unit; the second total voltage threshold is greater than the first total voltage threshold; in step S33, if the total voltage of the base station power supply is less than the second total voltage threshold or the voltage of any battery unit is less than the first cell voltage threshold, it is determined that the voltage of the base station power supply is too low; and if the total voltage of the base station power supply is greater than or equal to the second total voltage threshold and the voltage of any battery unit is greater than or equal to the first monomer voltage threshold, judging that the voltage of the base station power supply is normal.
Further, the step S40 includes the steps of: step S41: the bidirectional inverter receives a charging instruction sent by the controller; step S42: the bidirectional inverter converts alternating current in a power grid into direct current so as to charge a base station power supply; step S43: detecting whether the charging of the base station power supply is finished, if so, entering a step S46, otherwise, entering a step S44; step S46: the controller controls the power grid to stop charging the base station power supply, and sends a charging completion signal to the control center; step S44: continuously monitoring a control instruction sent by a controller; step S45: and judging whether the control instruction is a charging instruction, if so, returning to the step S42, and otherwise, entering the step S20.
Further, before the step S41, setting a third total voltage threshold of the base station power supply and a second cell voltage threshold of the battery unit, where the third total voltage threshold is greater than the first total voltage threshold and the second total voltage threshold, and the second cell voltage threshold is greater than the first cell voltage threshold; in step S43, if the total voltage of the base station power supply is greater than or equal to the third total voltage threshold, or the voltage of any battery unit is greater than or equal to the second cell voltage threshold, it is determined that the charging of the base station power supply is completed; and if the total voltage of the base station power supply is smaller than the third total voltage threshold value and the voltage of any battery unit is smaller than the second monomer voltage threshold value, judging that the charging of the base station power supply is not finished.
Compared with the prior art, the peak clipping and valley filling power supply control method of the communication base station comprises the following steps: step S11: judging whether a control instruction sent by a controller is received; if the control instruction is not received, the step S12 is executed, and if the control instruction is received, the step S20 is executed; step S12: detecting and judging whether the power grid has electricity, if so, entering a step S20, otherwise, entering a step S13; step S13: the controller controls a base station power supply to supply power to a base station load and controls an alternating current side connected with a power grid to be switched on and off; step S14: judging whether the AC side switch is disconnected, if so, entering step S15, otherwise, entering step S16; step S15: detecting the voltage of the base station power supply and judging whether the voltage of the base station power supply is too low, if so, entering a step S18, otherwise, entering a step S17; step S16: if the AC side switch is not disconnected, the controller sends an alarm signal to a control center; step S17: judging whether the power grid has an incoming call, if so, entering the step S20, otherwise, returning to the step S15; step S18: the controller controls the power supply of the base station to stop discharging; step S20: and executing the control instruction sent by the controller. Therefore, the base station power supply of the communication base station can be reasonably utilized, the peak clipping and valley filling of a power grid are realized, the effect of the base station power supply is greatly exerted, and the benefit is improved.
Drawings
Embodiments of the invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic diagram of a work flow at a power-off time of the peak clipping and valley filling power control method for a communication base station according to the present invention.
Fig. 2 is a schematic diagram of a work flow of executing the control command in fig. 1.
Fig. 3 is a schematic flowchart of the operation of executing the discharging instruction in fig. 2.
Fig. 4 is a schematic flowchart of the operation of executing the charging command in fig. 2.
Detailed Description
Specific embodiments of the present invention will be described in further detail below based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
Referring to fig. 1, the method for controlling a peak clipping and valley filling power supply of a communication base station according to the present invention includes the following steps:
step S10: setting a first total voltage threshold, a second total voltage threshold and a third total voltage threshold of a base station power supply; setting a first cell voltage threshold value and a second cell voltage threshold value of a battery unit; the second total voltage threshold is greater than the first total voltage threshold, the third total voltage threshold is greater than the second total voltage threshold, and the second cell voltage threshold is greater than the first cell voltage threshold.
Step S11: judging whether a control instruction sent by a controller is received; if not, the step S12 is carried out, and if a control instruction is received, the step S20 is carried out;
step S12: detecting and judging whether the power grid has electricity, if so, entering a step S20, otherwise, entering a step S13;
step S13: the controller controls a base station power supply to supply power to a base station load and controls an alternating current side connected with a power grid to be switched on and off;
step S14: judging whether the AC side switch is disconnected, if so, entering a step S15, otherwise, entering a step S16; the ac side switch may be a relay.
Step S15: and detecting the voltage of the base station power supply and judging whether the voltage of the base station power supply is too low, if so, entering a step S18, and otherwise, entering a step S17. Specifically, if the total voltage of the base station power supply is less than a first total voltage threshold or the voltage of any battery unit is less than a first single voltage threshold, it is determined that the voltage of the base station power supply is too low; and if the total voltage of the base station power supply is greater than or equal to the first total voltage threshold and the voltage of any battery unit is greater than or equal to the first monomer voltage threshold, judging that the voltage of the base station power supply is normal.
Step S16: if the AC side switch is not disconnected after three continuous detections, the controller sends an alarm signal indicating that the AC side switch is not disconnected to a control center;
step S17: judging whether the power grid has an incoming call, if so, entering the step S20, otherwise, returning to the step S15;
step S18: the controller controls the power supply of the base station to stop discharging, and sends an alarm signal indicating the electricity exhaustion to the control center;
step S20: and executing the control instruction sent by the controller.
Referring to fig. 2, if a power grid comes in, or a user sends an operation instruction to the controller, so that the controller sends a control instruction, step S20 is started.
The execution of the control command sent by the controller comprises the following steps:
step S21: receiving a control instruction sent by a controller;
step S22: judging whether the control instruction is a charging instruction or a discharging instruction; if the command is a charge command, the process proceeds to step S40, and if the command is a discharge command, the process proceeds to step S30. The control command is a charging command or a discharging command, which can be determined by the control center, or the control command can be automatically set as the charging command or the discharging command according to different time intervals. If the electricity consumption is in the valley period (the electricity price is lower at the moment), the electricity purchased into the power grid charges the power supply of the base station; and in the peak period of power utilization (the price of electricity is higher at the moment), outputting electric energy to the power grid. Thereby earning the price difference and improving the income.
Step S30: executing a discharging instruction;
step S40: and executing the charging instruction.
Referring to fig. 3, the step S30 includes the following steps:
step S31: the bidirectional inverter receives a discharge instruction sent by the controller, and the base station power supply simultaneously supplies power to the base station load;
step S32: the base station power supply discharges, and the bidirectional inverter converts direct current of the base station power supply into alternating current transmitted by a power grid, so that the base station power supply transmits power to the power grid;
step S321: the power grid feeds back the feed state of the base station power supply;
step S322: judging whether the power grid feeding works normally, if so, entering step S33, and otherwise, entering step S323;
step S323: if the power grid feeds back the power supply feed abnormality of the base station three times continuously, the controller sends an alarm signal indicating the feed abnormality to the control center;
step S33: and detecting the voltage of the base station power supply and judging whether the voltage of the base station power supply is too low, if so, entering step S36, and otherwise, entering step S34. Specifically, if the total voltage of the base station power supply is less than the second total voltage threshold or the voltage of any battery unit is less than the first cell voltage threshold, it is determined that the voltage of the base station power supply is too low; and if the total voltage of the base station power supply is greater than or equal to the second total voltage threshold and the voltage of any battery unit is greater than or equal to the first monomer voltage threshold, judging that the voltage of the base station power supply is normal. The second total voltage threshold is larger than the first total voltage threshold, so that the base station power supply has enough electric energy to supply power for the base station load after the feeding is finished.
Step S36: the controller controls the power supply of the base station to stop discharging and switches the power supply from the power grid to the base station, and meanwhile, the controller sends an alarm signal indicating the electricity consumption to the control center;
step S34: continuously monitoring a control instruction sent by a controller;
step S35: and judging whether the control command is a discharge command, if so, returning to the step S32, and otherwise, entering the step S20.
Step S20 is initiated, and the controller controls the bidirectional inverter to correspondingly change the operation mode.
Referring to fig. 4, the step S40 includes the following steps:
step S41: the bidirectional inverter receives a charging instruction sent by the controller;
step S42: the bidirectional inverter converts alternating current in a power grid into direct current so as to charge a base station power supply;
step S421: the base station power supply feeds back the charging state;
step S422: judging whether the charging of the base station power supply is normal, if so, entering a step S43, and if not, entering a step S423;
step S423: if the base station power supply feeds back the charging abnormity for three times continuously, the controller sends an alarm signal indicating the charging abnormity to the control center; step S43: and detecting whether the charging of the base station power supply is completed, if so, entering step S46, and otherwise, entering step S44. Specifically, if the total voltage of the base station power supply is greater than or equal to the third total voltage threshold, or the voltage of any battery unit is greater than or equal to the second cell voltage threshold, it is determined that the charging of the base station power supply is completed; and if the total voltage of the base station power supply is smaller than the third total voltage threshold value and the voltage of any battery unit is smaller than the second monomer voltage threshold value, judging that the charging of the base station power supply is not finished.
Step S46: the controller controls the power grid to stop charging the base station power supply, and the controller sends a signal indicating that charging is completed to the control center. The control center indicates that the charging of the base station power supply is finished by lighting an indicator lamp. Step S44: continuously monitoring a control instruction sent by a controller;
step S45: and judging whether the control instruction is a charging instruction, if so, returning to the step S42, and otherwise, entering the step S20.
Step S20 is initiated, and the controller controls the bidirectional inverter to correspondingly change the operation mode.
The peak clipping and valley filling power supply control method of the communication base station works according to a preset program or flow when a control instruction temporarily sent by a control center is not received; in addition, the control command temporarily sent by the control center can be received in real time, and corresponding operation is executed according to the control command. Thus, the control command from the control center can be settled or executed in real time.
Compared with the prior art, the peak clipping and valley filling power supply control method of the communication base station comprises the following steps: step S11: judging whether a control instruction sent by a controller is received; if the control instruction is not received, the step S12 is executed, and if the control instruction is received, the step S20 is executed; step S12: detecting and judging whether the power grid has electricity, if so, entering a step S20, otherwise, entering a step S13; step S13: the controller controls a base station power supply to supply power to a base station load and controls an alternating current side connected with a power grid to be switched on and off; step S14: judging whether the AC side switch is disconnected, if so, entering a step S15, otherwise, entering a step S16; step S15: detecting the voltage of the base station power supply and judging whether the voltage of the base station power supply is too low, if so, entering a step S18, otherwise, entering a step S17; step S16: if the AC side switch is not disconnected, the controller sends an alarm signal to a control center; step S17: judging whether the power grid is incoming, if so, entering the step S20, otherwise, returning to the step S15; step S18: the controller controls the power supply of the base station to stop discharging; step S20: and executing the control instruction sent by the controller. Therefore, the base station power supply of the communication base station can be reasonably utilized, the peak clipping and valley filling of a power grid are realized, the effect of the base station power supply is greatly exerted, and the benefit is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.
Claims (5)
1. A peak clipping and valley filling power supply control method of a communication base station is characterized in that: the method comprises the following steps:
step S11: judging whether a control instruction sent by a controller is received; if the control instruction is not received, the step S12 is executed, and if the control instruction is received, the step S20 is executed; before the step S11, setting a first total voltage threshold value of a base station power supply and a first single voltage threshold value of a battery unit;
step S12: detecting and judging whether the power grid has electricity, if so, entering a step S20, otherwise, entering a step S13;
step S13: the controller controls a base station power supply to supply power to a base station load and controls an alternating current side connected with a power grid to be switched on and off;
step S14: judging whether the AC side switch is disconnected, if so, entering a step S15, otherwise, entering a step S16;
step S15: detecting the voltage of a base station power supply and judging whether the voltage of the base station power supply is too low, if so, entering a step S18, otherwise, entering a step S17, and if the total voltage of the base station power supply is smaller than a first total voltage threshold value or the voltage of any battery unit is smaller than a first monomer voltage threshold value, judging that the voltage of the base station power supply is too low; if the total voltage of the base station power supply is greater than or equal to the first total voltage threshold value and the voltage of any battery unit is greater than or equal to the first monomer voltage threshold value, judging that the voltage of the base station power supply is normal;
step S16: if the AC side switch is not disconnected, the controller sends an alarm signal to a control center;
step S17: judging whether the power grid is incoming, if so, entering the step S20, otherwise, returning to the step S15;
step S18: the controller controls the power supply of the base station to stop discharging, and the controller sends an alarm signal of electric quantity exhaustion to the control center;
step S20: executing a control instruction sent by the controller, wherein the step S20 comprises the following substeps:
step S21: receiving a control instruction sent by a controller;
step S22: judging whether the control instruction is a charging instruction or a discharging instruction; if the command is a charging command, the step S40 is performed, and if the command is a discharging command, the step S30 is performed;
step S30: executing a discharge instruction, wherein the step S30 comprises the following substeps:
step S31: a bidirectional inverter receives a discharge instruction sent by the controller, the direct current end of the bidirectional inverter is connected with a base station power supply, the alternating current end of the bidirectional inverter is connected with an external power grid, the base station power supply simultaneously supplies power to a base station load, and before the step S31, a second total voltage threshold of the base station power supply and a first single voltage threshold of a battery unit are set; the second total voltage threshold is greater than the first total voltage threshold;
step S32: the base station power supply discharges, and the bidirectional inverter converts direct current of the base station power supply into alternating current transmitted by a power grid, so that the base station power supply transmits power to the power grid;
step S33: detecting the voltage of the base station power supply and judging whether the voltage of the base station power supply is too low, if so, entering a step S36, otherwise, entering a step S34, and in a step S33, if the total voltage of the base station power supply is smaller than a second total voltage threshold value or the voltage of any battery unit is smaller than a first monomer voltage threshold value, judging that the voltage of the base station power supply is too low; if the total voltage of the base station power supply is greater than or equal to the second total voltage threshold value and the voltage of any battery unit is greater than or equal to the first monomer voltage threshold value, judging that the voltage of the base station power supply is normal;
step S36: the controller controls the power supply of the base station to stop discharging and switches the power supply from the power grid to the base station, and meanwhile, the controller sends an alarm signal of electric quantity exhaustion to the control center;
step S34: continuously monitoring a control command sent by the controller;
step S35: judging whether the control instruction is a discharging instruction, if so, returning to the step S32, otherwise, entering the step S20;
step S40: and executing the charging instruction.
2. The method of claim 1, wherein the power control method comprises: the AC side switch is a relay.
3. The method of claim 1 for peak clipping and valley filling power control in a communication base station, wherein: in the step S16, if it is detected that the ac side switch is not turned off for three consecutive times, the controller sends an alarm signal to a control center.
4. The method of claim 1, wherein the power control method comprises: the step S40 includes the steps of:
step S41: a bidirectional inverter receives a charging instruction sent by the controller, the direct current end of the bidirectional inverter is connected with the base station power supply, and the alternating current end of the bidirectional inverter is connected with an external power grid;
step S42: the bidirectional inverter converts alternating current in a power grid into direct current so as to charge a base station power supply;
step S43: detecting whether the charging of the base station power supply is finished, if so, entering a step S46, otherwise, entering a step S44;
step S46: the controller controls the power grid to stop charging the base station power supply, and sends a charging completion signal to the control center;
step S44: continuously monitoring a control instruction sent by a controller;
step S45: and judging whether the control instruction is a charging instruction, if so, returning to the step S42, and otherwise, entering the step S20.
5. The method of claim 4 for peak clipping and valley filling power control in a communication base station, wherein: before the step S41, setting a third total voltage threshold of the base station power supply and a second cell voltage threshold of the battery unit, where the third total voltage threshold is greater than the first total voltage threshold and the second total voltage threshold, and the second cell voltage threshold is greater than the first cell voltage threshold; in step S43, if the total voltage of the base station power supply is greater than or equal to the third total voltage threshold, or the voltage of any battery unit is greater than or equal to the second cell voltage threshold, it is determined that the charging of the base station power supply is completed; and if the total voltage of the base station power supply is smaller than the third total voltage threshold value and the voltage of any battery unit is smaller than the second monomer voltage threshold value, judging that the charging of the base station power supply is not finished.
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