CN112018879B - Oil engine control method, device and system of gloss oil complementary power supply system for base station - Google Patents

Oil engine control method, device and system of gloss oil complementary power supply system for base station Download PDF

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Publication number
CN112018879B
CN112018879B CN201910465152.1A CN201910465152A CN112018879B CN 112018879 B CN112018879 B CN 112018879B CN 201910465152 A CN201910465152 A CN 201910465152A CN 112018879 B CN112018879 B CN 112018879B
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voltage
oil engine
battery
oil
judging whether
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CN112018879A (en
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周靖皓
薛法洪
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Shanghai Ranyi New Energy Technology Co ltd
China Mobile Communications Group Co Ltd
China Mobile Group Zhejiang Co Ltd
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Shanghai Ranyi New Energy Technology Co ltd
China Mobile Communications Group Co Ltd
China Mobile Group Zhejiang Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Abstract

The invention discloses an oil engine control method, a device and a system of a gloss oil complementary power supply system for a base station, wherein the method comprises the following steps: acquiring a first battery voltage acquired by a voltage acquisition unit; judging whether the first battery voltage is lower than an alarm voltage or not; if the voltage is lower than the alarm voltage, controlling the oil engine to start; if the first battery voltage is higher than or equal to the warning voltage, judging whether the first battery voltage is lower than the buffer voltage; if the current is lower than the buffer voltage, acquiring a plurality of first output currents of the photovoltaic power generation device, which are acquired by a current acquisition unit within a first preset time period; calculating a first effective output current of the photovoltaic power generation device in a first preset time period according to the plurality of first output currents; and judging whether the first effective output current is smaller than a preset starting value or not, and controlling the oil engine to start if the first effective output current is smaller than the preset starting value. According to the scheme of the invention, the oil engine can be controlled to start according to the voltage of the battery and the effective output current of the photovoltaic power generation device while the service is not influenced, the solar energy is fully utilized, and unnecessary operation of the oil engine is reduced.

Description

Oil engine control method, device and system of gloss oil complementary power supply system for base station
Technical Field
The invention relates to the technical field of communication, in particular to an oil engine control method, device and system of a gloss oil complementary power supply system for a base station.
Background
In areas without commercial power, such as remote mountainous areas, deserts and islands, the base station usually adopts solar power supply, and because solar energy is influenced by weather, the power supply is unstable, and the power supply is usually complemented by a diesel generator set, so that the power supply reliability is improved. Therefore, the solar energy and diesel generator matched light-oil complementary power supply system is widely applied to base stations in areas without commercial power. Meanwhile, when the solar-oil complementary power supply system is used, the start or stop of a diesel generator (hereinafter referred to as an oil engine) needs to be controlled to make up for the defect of unstable solar power supply.
In the prior art, the starting and stopping modes of the oil engine are mainly divided into manual control and intelligent control. The manual control mode requires a worker to manually start or stop the oil engine, and the flexibility is poor; the intelligent control method is further divided into the following two methods:
firstly, the oil engine is started and stopped according to the voltage or the electric quantity of the battery, the oil engine is started when the voltage or the electric quantity of the battery is lower than a certain value, and the oil engine is closed when the voltage or the electric quantity of the battery is increased to a certain value. In the mode, the oil engine is started and stopped only by considering the voltage or the electric quantity of the battery, solar energy is not fully utilized, and the problem of unreasonable oil consumption is likely to occur;
and secondly, starting and stopping the oil engine according to the voltage or electric quantity of the battery and the photovoltaic transient output value. Comparing the photovoltaic transient output value with the load correlation quantity, and starting the oil engine when the photovoltaic transient output value and the load correlation quantity are smaller than a certain value and the voltage or the electric quantity of the battery is also lower than a certain value; and when the voltage or the electric quantity of the battery rises to a certain value, the oil engine is shut down. In this way, the photovoltaic transient output value is closely related to the illumination intensity, and is easily over-large or over-small in time, so that the determined starting or stopping time is easily inaccurate.
Disclosure of Invention
In view of the above problems, the present invention is proposed to provide an oil engine control method, apparatus and system for a base station oil-light complementary power supply system, which overcome the above problems or at least partially solve the above problems.
According to one aspect of the present invention, there is provided an oil engine control method for an optical oil complementary power supply system for a base station, including:
step S11, acquiring a first battery voltage acquired by a voltage acquisition unit; judging whether the first battery voltage is lower than an alarm voltage or not; if the voltage is lower than the alarm voltage, controlling the oil engine to start;
step S12, if the first battery voltage is higher than or equal to the warning voltage, determining whether the first battery voltage is lower than a buffer voltage;
step S13, if the voltage is lower than the buffer voltage, acquiring a plurality of first output currents of the photovoltaic power generation device, which are acquired by the current acquisition unit within a first preset time period;
step S14, calculating a first effective output current of the photovoltaic power generation device in a first preset time period according to the plurality of first output currents; and judging whether the first effective output current is smaller than a preset starting value or not, and controlling the oil engine to start if the first effective output current is smaller than the preset starting value.
Optionally, the method further includes: if the voltage is higher than or equal to the buffer voltage, jumping to execute step S11; or, if the value is greater than or equal to the preset starting value, the step S11 is skipped to.
Optionally, after the oil control machine is started, the method further includes: and controlling the oil engine to be turned off according to the second battery voltage acquired by the voltage acquisition power supply, the operation time of the oil engine and/or a plurality of second output currents of the photovoltaic power generation device acquired by the current acquisition unit in a second preset time period.
Optionally, controlling the oil engine to shut down according to the second battery voltage collected by the voltage collecting unit, the operating time of the oil engine, and/or the plurality of second output currents of the photovoltaic power generation device collected by the current collecting unit within the second preset time period further includes:
step S21, acquiring a second battery voltage acquired by a voltage acquisition unit, and judging whether the second battery voltage is higher than a shutdown voltage; if the voltage is higher than the shutdown voltage, controlling the oil engine to be shut down;
step S22, if the voltage is lower than or equal to the shutdown voltage, judging whether the operation time of the oil engine reaches the alarm time; if the alarm duration is reached, controlling the oil engine to stop;
step S23, if the alarm time length is not reached, judging whether the timing time length of the timing unit reaches the buffer interval; if the buffer interval is reached, judging whether the voltage of the second battery is higher than the safe voltage;
step S24, if the voltage is higher than the safe voltage, acquiring a plurality of second output currents of the photovoltaic power generation device, which are acquired by the current acquisition unit within a second preset time period;
step S25, calculating a second effective output current of the photovoltaic power generation device in a second preset time period according to the plurality of second output currents; and judging whether the second effective output current is greater than a preset shutdown value, and controlling the oil engine to be shut down if the second effective output current is greater than the preset shutdown value.
Optionally, the method further includes: if the buffer interval is not reached, jumping to execute step S21; or, if the voltage is lower than or equal to the safe voltage, jumping to execute step S21; or, if the current value is less than or equal to the preset shutdown value, skipping to execute step S21.
Optionally, the method further includes: if the alarm duration is reached, judging whether the voltage of the second battery is lower than the buffer voltage;
and if the second battery voltage is lower than the buffer voltage, the alarm output unit generates an alarm signal and sends the alarm signal to the remote terminal through the communication unit so as to carry out remote operation.
According to another aspect of the present invention, there is provided an oil engine control device for a base station optical oil complementary power supply system, including:
the central processing unit is suitable for acquiring the first battery voltage acquired by the voltage acquisition unit; judging whether the first battery voltage is lower than an alarm voltage or not; if the first battery voltage is higher than or equal to the alarm voltage, judging whether the first battery voltage is lower than the buffer voltage; if the current is lower than the buffer voltage, acquiring a plurality of first output currents of the photovoltaic power generation device, which are acquired by a current acquisition unit within a first preset time period; calculating a first effective output current of the photovoltaic power generation device in a first preset time period according to the plurality of first output currents; judging whether the first effective output current is smaller than a preset starting value or not;
the output control unit is suitable for controlling the oil engine to start if the voltage is lower than the alarm voltage; or, the method is suitable for controlling the oil engine to start if the starting value is smaller than the preset starting value.
Optionally, the central processing unit is further adapted to: if the voltage is higher than or equal to the buffer voltage, acquiring a first battery voltage acquired by a voltage acquisition unit; or, if the voltage is greater than or equal to the preset starting value, acquiring the first battery voltage acquired by the voltage acquisition unit.
Optionally, the central processing unit is further adapted to: the photovoltaic power generation device is suitable for controlling the oil engine to be shut down according to the second battery voltage acquired by the voltage acquisition unit, the operation time of the oil engine and/or a plurality of second output currents of the photovoltaic power generation device acquired by the current acquisition unit in a second preset time period.
Optionally, the central processing unit is further adapted to: acquiring a second battery voltage acquired by a voltage acquisition unit, and judging whether the second battery voltage is higher than a shutdown voltage or not; if the operating time of the oil engine is less than or equal to the shutdown voltage, judging whether the operating time of the oil engine reaches the alarm time; if the alarm time length is not reached, judging whether the timing time length of the timing unit reaches the buffer interval or not; if the buffer interval is reached, judging whether the voltage of the second battery is higher than the safe voltage; if the voltage is higher than the safe voltage, acquiring a plurality of second output currents of the photovoltaic power generation device, which are acquired by the current acquisition unit within a second preset time period; calculating a second effective output current of the photovoltaic power generation device in a second preset time period according to the plurality of second output currents; judging whether the second effective output current is larger than a preset shutdown value or not
The output control unit is further adapted to: if the voltage is higher than the shutdown voltage, controlling the oil engine to be shut down; or if the alarm time length is reached, controlling the oil engine to stop; or if the oil engine is larger than the preset shutdown value, controlling the oil engine to be shut down.
Optionally, the central processing unit is further adapted to:
if the voltage does not reach the buffering interval, acquiring a second battery voltage acquired by a voltage acquisition unit; or if the voltage is lower than or equal to the safe voltage, acquiring a second battery voltage acquired by the voltage acquisition unit; or if the voltage is smaller than or equal to the preset shutdown value, acquiring the second battery voltage acquired by the voltage acquisition unit.
Optionally, the apparatus further comprises: the alarm output unit is suitable for judging whether the voltage of the second battery is lower than the buffer voltage or not if the alarm duration is reached; and if the second battery voltage is lower than the buffer voltage, the alarm output unit generates an alarm signal and sends the alarm signal to the remote terminal through the communication unit so as to carry out remote operation.
According to another aspect of the present invention, there is provided an oil engine control system, comprising: the base station light oil complementary power supply system comprises a voltage acquisition unit, a current acquisition unit, a timing unit and the oil engine control device of the base station light oil complementary power supply system.
According to yet another aspect of the present invention, there is provided a computing device comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction enables the processor to execute the operation corresponding to the oil engine control method of the base station light oil complementary power supply system.
According to still another aspect of the present invention, a computer storage medium is provided, where at least one executable instruction is stored in the storage medium, and the executable instruction causes a processor to execute operations corresponding to the oil engine control method of the above-mentioned optical oil complementary power supply system for a base station.
According to the oil engine control method, the device and the system of the gloss oil complementary power supply system for the base station, the oil engine can be started in time when the voltage of the battery is lower than the alarm voltage, so that the condition that the load is out of service due to power supply interruption is avoided; secondly, when the battery voltage is between the alarm voltage and the buffer voltage, the oil engine is controlled to be started according to the battery voltage and the effective output current of the photovoltaic power generation device, when the illumination intensity is judged to be enough to supply power to the load and the battery at the same time, the oil engine is not started, solar energy is fully utilized, unnecessary starting of the oil engine is reduced, the service life of the oil engine is prolonged, and fuel consumption is reduced; and the power supply capacity of the photovoltaic power generation device is determined according to the effective output current of the photovoltaic power generation device, and the photovoltaic power generation device is not easily influenced by an instantaneous value, so that the power supply capacity of the photovoltaic power generation device can be accurately determined.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a block diagram showing a configuration of a complementary optical oil power supply system for a base station;
fig. 2 is a flowchart illustrating an oil engine control method of a base station optical oil complementary power supply system according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating an oil engine control method of a base station optical oil complementary power supply system according to another embodiment of the present invention;
fig. 4 shows a functional block diagram of an oil engine control device of a base station optical oil complementary power supply system according to an embodiment of the present invention;
figure 5 illustrates a block diagram of the components of the fuel engine control system according to one embodiment of the present invention;
FIG. 6 shows a schematic structural diagram of a computing device according to an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Before implementing the scheme of the invention, the composition of the optical oil complementary power supply system for the base station is basically described. Fig. 1 shows a block diagram of a base station optical oil complementary power supply system. As shown in fig. 1, the light-oil complementary power supply system includes a solar power generation device (hereinafter, referred to as a photovoltaic power generation device), an oil engine power generation device, a coordination processing device, an oil engine control device, a storage battery, and a load device. The solar power generation device converts the electric energy of the photovoltaic cell panel and outputs the converted electric energy to a load and charges a battery; the oil engine power generation device converts the power generated by the oil engine and outputs the converted power to a load and charges a battery; the coordination processing device is used for coordinating the work of the solar power generation device and the oil engine power generation device, and when the solar power generation device and the oil engine power generation device run simultaneously, the electric energy of the solar power generation device is preferentially used, so that the oil consumption of the oil engine power generation device is reduced; the function of the oil engine control device can be referred to the following detailed description of the device embodiment, and is not described herein again.
Fig. 2 is a flowchart illustrating an oil engine control method of a base station optical oil complementary power supply system according to an embodiment of the present invention. The embodiment is mainly explained with respect to the control process of the oil engine start. As shown in fig. 2, the method includes:
step S201: acquiring a first battery voltage acquired by a voltage acquisition unit; judging whether the first battery voltage is lower than an alarm voltage or not; if yes, go to step S205; if not, go to step S202.
The scheme of the invention is executed by an oil engine control device (the same as the oil engine control device of a base station optical oil complementary power supply system in the following text), wherein the oil engine control device respectively acquires battery voltage data and output current data of a photovoltaic power generation device from a voltage acquisition unit and a current acquisition unit, performs logical operation on the acquired battery voltage data and output current data, and controls the starting and stopping of the oil engine according to an operation result, thereby realizing flexible and accurate control of the oil engine.
Specifically, a first battery voltage is obtained, a first-level judgment is performed, and whether the first battery voltage is lower than an alarm voltage is judged, wherein the alarm voltage is set according to a minimum voltage required by normal operation of a load, and optionally, the minimum voltage required by the normal operation of the load can be set as the alarm voltage; or, the minimum voltage required by the normal operation of the load can be increased by a preset value to obtain an alarm voltage; if the first battery voltage is lower than the alarm voltage, executing step S205 to immediately start the oil engine to supply power; if the first battery voltage is higher than or equal to the warning voltage, step S202 is executed to perform a second level determination.
Step S202: judging whether the first battery voltage is lower than the buffer voltage; if the voltage is lower than the buffer voltage, acquiring a plurality of first output currents of the photovoltaic power generation device, which are acquired by the current acquisition unit within a first preset time period.
The buffer voltage is higher than the alarm voltage, the time for reducing the buffer voltage to the alarm voltage exceeds a certain time interval by setting the buffer voltage, the buffer effect is achieved, and the situation that the normal operation of a load cannot be maintained due to the fact that the reduction rate of the battery voltage is too high due to poor performance of the battery is avoided.
Specifically, if the first battery voltage is lower than the buffer voltage, which indicates that the voltage is extremely easy to drop to the alarm voltage in a short time, a plurality of first output currents are obtained so as to determine whether the photovoltaic power generation device is enough to supply power to the battery and the load.
In some optional embodiments of the present invention, the plurality of first output currents may be a plurality of output currents of the photovoltaic power generation apparatus collected by the current collection device within a first preset time period after the first battery voltage is determined to be lower than the buffer voltage, for example, output currents collected at a plurality of time points within 60 minutes after the first battery voltage is determined to be lower than the buffer voltage, so that the plurality of first output currents are real-time current values, which is favorable for accurately determining the power supply capability of the photovoltaic power generation apparatus.
Or, in another alternative embodiment of the present invention, the plurality of first output currents are the plurality of output currents of the photovoltaic power generation device collected by the current collection device within a first preset time period before the current time point, for example, the plurality of first current values may be obtained by fast reading in order to determine the output currents of the plurality of time points collected within 60 minutes before the first battery voltage is lower than the buffer voltage, and the real-time collection does not need to be waited, which is favorable for fast determining the power supply capability of the photovoltaic power generation device.
In the two alternative embodiments, the plurality of first output currents are output currents corresponding to a plurality of time points within a first preset time period, for example, the plurality of time points are time points every 10 minutes within 60 minutes.
In addition, in some alternative embodiments of the present invention, if the first battery voltage is higher than or equal to the buffer voltage, which indicates that the battery can maintain the normal operation of the load for a period of time, the process skips to perform step S201 for the next round of determination.
Step S103: and calculating a first effective output current of the photovoltaic power generation device in a first preset time period according to the plurality of first output currents.
In the invention, the power supply capacity of the photovoltaic power generation device is determined by calculating the first effective output current of the photovoltaic power generation device and according to the first effective output current. The first effective output current is output current reflecting stable power supply capacity of the photovoltaic power generation device.
In some alternative embodiments of the invention, an average of the plurality of first output currents may be calculated, and the result of the average may be taken as the first effective output current. Alternatively, in other alternative embodiments of the present invention, a calculus operation may be performed on a plurality of first output currents within a preset time period, and the calculation result may be used as the first effective output current. It should be noted that, the present invention is not limited to the above-listed manner for calculating the first effective output current, and in the implementation, a person skilled in the art can flexibly determine the specific manner for calculating the first effective output current.
Step S204: judging whether the first effective output current is smaller than a preset starting value or not; if yes, go to step S205.
The preset starting value is set according to the minimum output current value required by the photovoltaic power generation device for maintaining normal operation of the load and the battery when the photovoltaic power generation device supplies power independently. The preset starting value needs to be adjusted according to the increase and decrease of the load and/or the capacity of the battery, so that the normal operation of the load and the battery can be ensured by the preset starting value. Optionally, the minimum output current value required for maintaining the normal operation of the load and the battery may be determined as a preset starting value, so that the oil engine is started only when the photovoltaic power generation device cannot maintain the normal operation of the load and the battery in the subsequent steps, and the starting of the oil engine is reduced as much as possible; or, a preset starting value can be obtained after a preset current value is added on the basis of the minimum output current, so that the problem that the system cannot normally supply power due to the fault of the oil engine after the oil engine is started is avoided, and the running stability of the system is improved.
Specifically, it is determined whether the first effective output current is smaller than a preset starting value, if so, it indicates that the photovoltaic power generation apparatus cannot maintain normal operation of the load and the battery, and at this time, step S205 is executed to supply power by using an oil engine. Further, calculating a ratio of the first effective output current to a rated output current of the photovoltaic power generation device, judging whether the ratio is lower than a first preset ratio, if so, judging that the first effective output current is smaller than a preset starting value, and in the judging mode, the rated output current can meet the current requirement of a power supply system; and the first preset proportion is dynamically adjusted according to the load and the rated current.
In addition, in some optional embodiments of the present invention, if the first output current is greater than or equal to the preset starting value, which indicates that the current output of the photovoltaic power generation apparatus is sufficient to meet the power supply requirements of the load and the battery, the step S201 is skipped to perform the next round of determination.
Step S205: and controlling the oil engine to start.
In the invention, the starting of the oil engine is controlled through two-stage judgment, wherein in the first stage, the oil engine is controlled to be started when the voltage of a first battery is lower than the alarm voltage; and the second stage is used for judging whether the first battery voltage is lower than the buffer voltage or not when the first battery voltage is higher than or equal to the alarm voltage, and controlling the oil engine to start when the first effective output current is lower than a preset starting value when the first battery voltage is lower than the buffer voltage. The two oil engine starting conditions are respectively that the battery voltage is seriously insufficient, and the photovoltaic power generation device is not enough to maintain the normal operation of the load and the battery, under the two conditions, the stable operation of the system can be maintained only by starting the oil engine, and at the moment, the oil engine is started, so that the unnecessary operation of the oil engine can be avoided.
In order to facilitate understanding of the implementation principle and the technical effect of the present embodiment, the following examples illustrate specific implementation processes: setting the alarm voltage Umin2 to 47V, the buffer voltage Umin1 to 48V, and the preset time period T1 to be 60 minutes before the first battery voltage is judged to be lower than the buffer voltage, firstly judging whether the first battery voltage is lower than 47V in each round of judgment process, and starting the oil engine immediately if the first battery voltage is lower than 47V; if the voltage is higher than or equal to 47V, further judging whether the first battery voltage is lower than 48V, if the voltage is lower than 48V, indicating that the risk of reducing the voltage to 47V in a short time exists, at this time, judging whether the average output current (namely the first effective output current) of the photovoltaic power generation device is lower than 30% of rated output current within 60 minutes, if the average output current is lower than 30% of rated output current, indicating that the photovoltaic power generation device does not have enough power supply capacity, and starting the oil engine.
According to the oil engine control method of the gloss oil complementary power supply system for the base station, the oil engine can be started in time when the voltage of the battery is in an under-voltage alarm state, so that the condition that the load is out of service due to power supply interruption is avoided; secondly, when the battery voltage is between the alarm voltage and the buffer voltage, the oil engine is controlled to be started according to the battery voltage and the effective output current of the photovoltaic power generation device, when the illumination intensity is judged to be enough to supply power to the load and the battery at the same time, the oil engine is not started, solar energy is fully utilized, unnecessary starting of the oil engine is reduced, the service life of the oil engine is prolonged, and fuel consumption is reduced; and the power supply capacity of the photovoltaic power generation device is determined according to the effective output current of the photovoltaic power generation device, and the photovoltaic power generation device is not easily influenced by an instantaneous value, so that the power supply capacity of the photovoltaic power generation device can be accurately determined.
Fig. 3 is a flowchart illustrating an oil engine control method of a base station optical oil complementary power supply system according to another embodiment of the present invention. The embodiment is mainly described with respect to the control process of the oil engine shutdown. As shown in fig. 3, the method includes:
step S301: and after the oil engine is controlled to be started, acquiring the second battery voltage acquired by the voltage acquisition unit.
The process of controlling the starting of the oil engine may refer to the description of the embodiment corresponding to fig. 2, and is not described herein again.
Specifically, after the oil engine is controlled to be started, the oil engine is controlled to be turned off according to the second battery voltage acquired by the voltage acquisition unit, the operation time of the oil engine, and/or a plurality of second output currents of the photovoltaic power generation device acquired by the current acquisition unit within a second preset time period. The second battery voltage reflects the real-time voltage value of the battery in the process of charging the battery by using the oil engine, and when the second battery voltage is high enough, the battery can not be charged any more; the operation time of the oil engine reflects the operation time of the oil engine, and the longer the operation time of the oil engine is, the larger the organic loss is and the higher the oil consumption is; and the second output current reflects the power supply capacity of the photovoltaic power generation device, and when the power supply capacity of the photovoltaic power generation device is the strongest enough, the photovoltaic power generation device can be used for supplying power instead of the oil changing machine. In practice, the oil engine shutdown can be controlled based on one or more parameters of the three, and the oil engine can be shut down only in advance, so that the loss and the fuel consumption of the oil engine are reduced.
In this embodiment, the logic for controlling the oil engine to shut down is described only in a feasible control manner, wherein whether the conditions for shutting down are met is sequentially determined through the second battery voltage, the operation time of the oil engine, and the plurality of second output currents, respectively, and if any shut-down condition is met, the oil engine is shut down, so that the operation of the oil engine is reduced as much as possible.
Specifically, after the oil engine is controlled to be started, the second battery voltage acquired by the voltage acquisition unit is acquired in real time, so that the real-time voltage value of the battery after the battery is charged by the oil engine is determined.
Step S302: judging whether the second battery voltage is higher than the shutdown voltage; if the voltage is higher than the shutdown voltage, go to step S308; if the voltage is lower than or equal to the shutdown voltage, executing step S303;
the shutdown voltage is set according to the power consumption condition of the load in the power supply system, and optionally, the shutdown voltage is set to be a voltage value which can be used for the load to normally run for a preset time when the battery independently supplies power to the load. For example, the preset time is 5 hours, when the voltage of the battery is 55V, the load can be independently powered and normally operated for at least 5 hours, and the shutdown voltage is set to 55V, so that the situation that the battery needs to be charged again to further influence the performance of the battery when the battery quickly enters a low-voltage state after the oil engine is shut down can be avoided.
Specifically, whether the voltage of the second battery is higher than the shutdown voltage or not is judged, if so, the power supply capacity of the battery is large enough, and the step S308 is executed to control the oil engine to be shut down; if the voltage is lower than or equal to the shutdown voltage, step S303 is executed to further determine whether other shutdown conditions are satisfied.
Step S303: judging whether the operation time of the oil engine reaches the alarm time; if yes, go to step S308; if not, go to step S304.
The alarm time duration is set according to the time duration range allowed by single operation of the oil engine, optionally, the alarm time duration can be set to be an upper boundary value of the time duration range, or the alarm time duration can be set to be a time duration value slightly smaller than the upper boundary value.
Specifically, whether the operation time of the oil engine reaches the alarm time is judged, if yes, the oil engine is easy to damage due to continuous operation of the oil engine, and step S308 is executed to control the oil engine to be turned off; if not, step S304 is executed to further determine whether other shutdown conditions are satisfied.
In addition, in some optional embodiments of the present invention, if the alarm duration is reached, it is determined whether the second battery voltage is lower than the buffer voltage; and if the second battery voltage is lower than the buffer voltage, the alarm output unit generates an alarm signal and sends the alarm signal to the remote terminal through the communication unit so as to carry out remote operation. In practical implementation, if the oil engine is turned off when the alarm voltage is reached, the oil engine may need to be turned on again to charge the battery after the oil engine is turned off due to the fact that the voltage of the second battery is low when the oil engine is turned off, for example, the battery has poor performance and is not easy to charge, when the voltage of the battery drops to the alarm voltage, the oil engine is immediately turned on to charge, and when the charging duration reaches the alarm duration, the voltage of the battery is still lower than the buffer voltage. In view of the situation, in these optional embodiments, the second battery voltage is further compared with the buffer voltage, and if the second battery voltage is lower than the buffer voltage, an alarm signal is sent to the remote terminal for the staff to perform remote operation, for example, to maintain the oil engine to continue charging.
Step S304: judging whether the timing duration of the timing unit reaches a buffer interval or not; if the buffer interval is reached, step S305 is executed.
The timing unit clears the timer at intervals of the buffer interval and performs a new round of timing, and the timer starts timing for the first time after the oil engine is started. In this embodiment, by setting the buffering interval, sufficient time can be left for obtaining a plurality of second output currents, which is further beneficial to further judging whether other shutdown conditions are met by combining the battery voltage and the power supply capacity of the photovoltaic power generation device. Specifically, if the buffering interval is reached, step S305 is executed to further determine whether other shutdown conditions are met.
In addition, in some optional embodiments of the present invention, if the buffering interval is not reached, the step S301 is skipped to perform.
Step S305: judging whether the second battery voltage is higher than a safe voltage; wherein the safe voltage is higher than the buffer voltage; if yes, go to step S306.
The safety voltage is lower than the shutdown voltage, and meanwhile, the safety voltage is higher than the buffer voltage; and the safe voltage can be set according to the configuration of the load, the battery pack and the photovoltaic power generation device of the power supply system, so that the time from the safe voltage to the buffer voltage exceeds a certain time interval, the buffer function is realized, and the oil engine is prevented from being required to be started again after the safe voltage is quickly reduced to the lower part of the buffer voltage. Preferably, the safety voltage is set to be higher than the buffer voltage by 2V, and if the buffer voltage is 48V, the safety voltage is 50V.
Specifically, if the second battery voltage is higher than the safe voltage, and the buffer time is long, step S306 is executed to determine the power supply capability of the photovoltaic power generation apparatus.
In addition, in some optional embodiments of the present invention, if the voltage is lower than or equal to the safe voltage, the buffering time is short, and the step S301 is skipped to perform.
Step S306: acquiring a plurality of second output currents of the photovoltaic power generation device, which are acquired by the current acquisition unit within a second preset time period; and calculating a second effective output current of the photovoltaic power generation device in a second preset time period according to the plurality of second output currents.
The second preset time period is consistent with the buffer interval, for example, the buffer interval is 60 minutes, that is, zero clearing is performed every 1 hour, and the second preset time period is a latest time period corresponding to 60 minutes.
The specific implementation of obtaining a plurality of second output currents and calculating the second effective output current in this step is similar to the process of obtaining a plurality of first output currents and calculating the first effective output current, and reference may be made to the related descriptions of step S202 to step S203 in the corresponding embodiment of fig. 2, which is not repeated herein. The main differences are: the plurality of second output currents refer to a plurality of output currents within a second preset time period before or after it is determined that the second battery voltage is higher than the safety voltage.
Step S307: judging whether the second effective output current is larger than a preset shutdown value or not; if yes, go to step S308; if not, the step S301 is skipped to execute.
The preset shutdown value can be set by referring to the setting mode of the preset starting value, but in general, the preset shutdown value is greater than the preset starting value so as to ensure that the photovoltaic power generation device can supply power to the load and the battery for a duration.
Specifically, whether the second effective output current is larger than a preset shutdown value or not is judged, if yes, the power supply capacity of the photovoltaic power generation device is enough, and at this time, step S308 is executed to control the shutdown oil engine. Further, a ratio of the second effective output current to a rated output current of the photovoltaic power generation device is calculated, whether the ratio is higher than a second preset ratio or not is judged, and if yes, it is judged that the second effective output current is larger than a preset shutdown value. In this manner, the rated output current needs to be able to meet the current requirements of the power supply system; and the second predetermined proportion is dynamically adjusted according to the load and the rated current.
Step S308: and controlling the oil engine to be shut down.
In the embodiment, the oil engine is controlled to be turned off through three-level judgment, wherein in the first level, when the voltage of the second battery is higher than the turn-off voltage, the oil engine is controlled to be turned off; the second stage, when the voltage of the second battery is lower than or equal to the shutdown voltage, judging whether the operation time of the oil engine reaches the alarm time, and if so, controlling the oil engine to be shut down; and thirdly, if the alarm time length is not reached, controlling the oil engine to be shut down when the operation time length of the oil engine reaches the buffer interval, the voltage of the second battery is higher than the safe voltage, and the second effective output current is larger than the preset shut-down value. The three conditions of turning off the oil engine are that the voltage of the charged battery is sufficient, the charging time is sufficient, and the photovoltaic power generation device is sufficient to maintain the normal operation of the load and the battery.
In order to facilitate understanding of the implementation principle and the technical effect of the present embodiment, the following examples illustrate specific implementation processes: setting the shutdown voltage Umax2 to be 55V, setting the buffer voltage Umax1 to be 50V, setting a second preset time period T2 to be 60 minutes before the second battery voltage is judged to be higher than the safety voltage, setting the alarm time length to be 16 hours, firstly judging whether the second battery voltage is higher than 55V in each judgment process, and immediately shutting down the oil engine if the second battery voltage is higher than 55V; if the voltage is lower than or equal to 55V, further judging whether the running time of the oil engine reaches 16 hours, and if so, shutting down the oil engine; and if the time does not reach 16 hours, judging whether the buffer interval reaches 60 minutes, if so, judging whether the second battery voltage is higher than 50V, whether the second effective output current is higher than 50% of rated output current, whether the second battery voltage is higher than 50V, and whether the second effective output current is higher than 50% of rated output current, and shutting down the oil engine.
According to the oil engine control method of the light-oil complementary power supply system for the base station, the charged battery voltage, the oil engine operation time and the power supply capacity of the photovoltaic power generation device are sequentially judged to determine the time meeting the shutdown condition as much as possible, so that the oil engine is shut down under the conditions that the charged battery voltage is sufficient, the charging time is sufficient and the photovoltaic power generation device is sufficient to maintain the normal operation of the load and the battery, the oil engine operation can be stopped in advance, and the fuel consumption is reduced.
Fig. 4 shows a functional block diagram of an oil engine control device of a base station optical oil complementary power supply system according to an embodiment of the present invention. As shown in fig. 4, the apparatus includes:
the central processing unit 401 is adapted to obtain a first battery voltage collected by the voltage collecting unit; judging whether the first battery voltage is lower than an alarm voltage or not; if the first battery voltage is higher than or equal to the alarm voltage, judging whether the first battery voltage is lower than the buffer voltage; if the current is lower than the buffer voltage, acquiring a plurality of first output currents of the photovoltaic power generation device, which are acquired by a current acquisition unit within a first preset time period; calculating a first effective output current of the photovoltaic power generation device in a first preset time period according to the plurality of first output currents; judging whether the first effective output current is smaller than a preset starting value or not;
the output control unit 402 is suitable for controlling the oil engine to start if the voltage is lower than the alarm voltage; or, the method is suitable for controlling the oil engine to start if the starting value is smaller than the preset starting value.
In an alternative embodiment, the central processing unit is further adapted to: if the voltage is higher than or equal to the buffer voltage, acquiring a first battery voltage acquired by a voltage acquisition unit; or, if the voltage is greater than or equal to the preset starting value, acquiring the first battery voltage acquired by the voltage acquisition unit.
In an alternative embodiment, the central processing unit is further adapted to: the photovoltaic power generation device is suitable for controlling the oil engine to be shut down according to the second battery voltage acquired by the voltage acquisition unit, the operation time of the oil engine and/or a plurality of second output currents of the photovoltaic power generation device acquired by the current acquisition unit in a second preset time period.
In an alternative embodiment, the central processing unit is further adapted to: acquiring a second battery voltage acquired by a voltage acquisition unit, and judging whether the second battery voltage is higher than a shutdown voltage or not; if the operating time of the oil engine is less than or equal to the shutdown voltage, judging whether the operating time of the oil engine reaches the alarm time; if the alarm time length is not reached, judging whether the timing time length of the timing unit reaches the buffer interval or not; if the buffer interval is reached, judging whether the voltage of the second battery is higher than the safe voltage; if the voltage is higher than the safe voltage, acquiring a plurality of second output currents of the photovoltaic power generation device, which are acquired by the current acquisition unit within a second preset time period; calculating a second effective output current of the photovoltaic power generation device in a second preset time period according to the plurality of second output currents; judging whether the second effective output current is larger than a preset shutdown value or not
The output control unit is further adapted to: if the voltage is higher than the shutdown voltage, controlling the oil engine to be shut down; or if the alarm time length is reached, controlling the oil engine to stop; or if the oil engine is larger than the preset shutdown value, controlling the oil engine to be shut down.
In an alternative embodiment, the central processing unit is further adapted to:
if the voltage does not reach the buffering interval, acquiring a second battery voltage acquired by a voltage acquisition unit; or if the voltage is lower than or equal to the safe voltage, acquiring a second battery voltage acquired by the voltage acquisition unit; or if the voltage is smaller than or equal to the preset shutdown value, acquiring the second battery voltage acquired by the voltage acquisition unit.
In an alternative embodiment, the apparatus further comprises: the alarm output unit is suitable for judging whether the voltage of the second battery is lower than the buffer voltage or not if the alarm duration is reached; and if the second battery voltage is lower than the buffer voltage, the alarm output unit generates an alarm signal and sends the alarm signal to the remote terminal through the communication unit so as to carry out remote operation.
The embodiment of the application provides an oil engine control system, and this oil engine control system includes: the device comprises a voltage acquisition unit, a current acquisition unit, a timing unit and an oil engine control device of the base station gloss oil complementary power supply system in the embodiment of the device. The timing unit is used for system timing and comprises a first preset time period, a second preset time period and/or the timing of the alarm duration.
Fig. 5 illustrates a block diagram of the components of the fuel engine control system according to one embodiment of the present invention. As shown in fig. 5, the oil engine control system further includes an alarm output unit, a man-machine interface unit, a storage unit, and a communication unit on the basis of including a voltage acquisition unit, a current acquisition unit, a timing unit, and the oil engine control device (the portion corresponding to the dotted line frame in fig. 5, which further includes a central processing unit and an output control unit) of the optical-oil complementary power supply system for a base station in the above device embodiment.
Wherein, the concrete description is as follows:
and the current acquisition unit is used for amplifying, filtering and conditioning the current signal output by the photovoltaic power generation device and transmitted to the central processing unit for A/D conversion.
And the voltage acquisition unit is used for controlling the voltage of the battery within a certain range through the resistance voltage division circuit and then transmitting the voltage to the central processing unit for A/D conversion through links such as filtering, amplification and the like.
The central processing unit consists of a microprocessor (CPU), memories (ROM and RAM), input/output interfaces (I/O), an analog-to-digital converter (A/D), a large-scale integrated circuit such as a shaping circuit and a driving circuit. And the central processing unit is used for carrying out system control according to the photovoltaic output effective numerical value output by the current acquisition unit. And the central processing unit performs system control according to the battery voltage value output by the voltage acquisition unit. And the central processing unit controls the starting and stopping of the oil engine according to the output current and the battery voltage of the solar power supply device. And the control interface is used for controlling the starting or closing of the oil engine by adopting a dry node or a communication mode according to the control interface form of the oil engine. The dry node control mode generally uses a 1-path relay as an output port, and two state signals are output through a contact of the relay: normally open/closed (triggered), or normally closed/normally open (triggered). The control mode is usually used for controlling an oil engine with an intelligent starting and stopping function, and the oil engine can detect a dry junction signal and automatically control according to the state of the dry junction signal; the communication control mode generally uses a serial communication interface, the start-stop control signal of the oil engine is transmitted to the oil engine according to a communication protocol, and the oil engine executes corresponding action after receiving an instruction.
And the communication unit is used for transmitting the running state, running time, battery voltage, photovoltaic output current and the like of the oil engine recorded by the central processing unit to the remote terminal through the physical interface RS-232 or RS-485. The remote terminal can set parameters of the oil engine controller through communication and carry out remote control operation.
And the storage unit adopts an electrically erasable programmable read-only memory (EEPROM), and stored data cannot be lost after the system is powered off. The storage unit is used for storing system parameters, system operation records, system alarm information and the like.
And the man-machine interface unit consists of keys, a display screen and an operation menu, and provides a visual operation interface for a user to locally check the operation state of the equipment, the alarm information of the equipment and the setting of the operation parameters of the equipment. The equipment operation parameters are adjusted by a user according to the configuration conditions of all the components in the system.
And the timing unit is used for counting the running time of the oil engine and setting the timing time in the control method.
And the alarm output unit is used for outputting the fault signal in the control device in a mode of a dry node.
The embodiment of the application provides a non-volatile computer storage medium, where the computer storage medium stores at least one executable instruction, and the computer executable instruction may execute the oil engine control method of the optical oil complementary power supply system for a base station in any method embodiment.
Fig. 6 is a schematic structural diagram of a computing device according to an embodiment of the present invention, and the specific embodiment of the present invention does not limit the specific implementation of the computing device.
As shown in fig. 6, the computing device may include: a processor (processor)602, a communication Interface 604, a memory 606, and a communication bus 608.
Wherein:
the processor 602, communication interface 604, and memory 606 communicate with one another via a communication bus 608.
A communication interface 604 for communicating with network elements of other devices, such as clients or other servers.
The processor 602 is configured to execute the program 610, and may specifically execute relevant steps in the oil engine control method embodiment of the optical oil complementary power supply system for a base station.
In particular, program 610 may include program code comprising computer operating instructions.
The processor 602 may be a central processing unit CPU or an application Specific Integrated circuit asic or one or more Integrated circuits configured to implement embodiments of the present invention. The computing device includes one or more processors, which may be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.
And a memory 606 for storing a program 610. Memory 606 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
The program 610 may specifically be configured to cause the processor 602 to perform the following operations:
step S11, acquiring a first battery voltage acquired by a voltage acquisition unit; judging whether the first battery voltage is lower than an alarm voltage or not; if the voltage is lower than the alarm voltage, controlling the oil engine to start;
step S12, if the first battery voltage is higher than or equal to the warning voltage, determining whether the first battery voltage is lower than a buffer voltage;
step S13, if the voltage is lower than the buffer voltage, acquiring a plurality of first output currents of the photovoltaic power generation device, which are acquired by the current acquisition unit within a first preset time period;
step S14, calculating a first effective output current of the photovoltaic power generation device in a first preset time period according to the plurality of first output currents; and judging whether the first effective output current is smaller than a preset starting value or not, and controlling the oil engine to start if the first effective output current is smaller than the preset starting value.
In an alternative embodiment, the program 610 may specifically be further configured to cause the processor 602 to perform the following operations: if the voltage is higher than or equal to the buffer voltage, jumping to execute step S11; or, if the value is greater than or equal to the preset starting value, the step S11 is skipped to.
In an alternative embodiment, the program 610 may specifically be further configured to cause the processor 602 to perform the following operations: and controlling the oil engine to be turned off according to the second battery voltage acquired by the voltage acquisition unit, the operation time of the oil engine and/or a plurality of second output currents of the photovoltaic power generation device acquired by the current acquisition unit in a second preset time period.
In an alternative embodiment, the program 610 may specifically be further configured to cause the processor 602 to perform the following operations:
step S21, acquiring a second battery voltage acquired by a voltage acquisition unit, and judging whether the second battery voltage is higher than a shutdown voltage; if the voltage is higher than the shutdown voltage, controlling the oil engine to be shut down;
step S22, if the voltage is lower than or equal to the shutdown voltage, judging whether the operation time of the oil engine reaches the alarm time; if the alarm duration is reached, controlling the oil engine to stop;
step S23, if the alarm time length is not reached, judging whether the timing time length of the timing unit reaches the buffer interval; if the buffer interval is reached, judging whether the voltage of the second battery is higher than the safe voltage;
step S24, if the voltage is higher than the safe voltage, acquiring a plurality of second output currents of the photovoltaic power generation device, which are acquired by the current acquisition unit within a second preset time period;
step S25, calculating a second effective output current of the photovoltaic power generation device in a second preset time period according to the plurality of second output currents; and judging whether the second effective output current is greater than a preset shutdown value, and controlling the oil engine to be shut down if the second effective output current is greater than the preset shutdown value.
In an alternative embodiment, the program 610 may specifically be further configured to cause the processor 602 to perform the following operations: if the buffer interval is not reached, jumping to execute step S21; or, if the voltage is lower than or equal to the safe voltage, jumping to execute step S21; or, if the current value is less than or equal to the preset shutdown value, skipping to execute step S21.
In an alternative embodiment, the program 610 may specifically be further configured to cause the processor 602 to perform the following operations: if the alarm duration is reached, judging whether the voltage of the second battery is lower than the buffer voltage;
and if the second battery voltage is lower than the buffer voltage, the alarm output unit generates an alarm signal and sends the alarm signal to the remote terminal through the communication unit so as to carry out remote operation.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It will be appreciated by those skilled in the art that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components of the oil engine control device of the base station complementary oil power supply system according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

Claims (9)

1. An oil engine control method of a light-oil complementary power supply system for a base station is characterized by comprising the following steps:
step S21, acquiring a second battery voltage acquired by a voltage acquisition unit, and judging whether the second battery voltage is higher than a shutdown voltage; if the voltage is higher than the shutdown voltage, controlling the oil engine to be shut down;
step S22, if the voltage is lower than or equal to the shutdown voltage, judging whether the operation time of the oil engine reaches the alarm time; if the alarm duration is reached, controlling the oil engine to stop;
step S23, if the alarm time length is not reached, judging whether the timing time length of the timing unit reaches the buffer interval; if the buffer interval is reached, judging whether the voltage of the second battery is higher than the safe voltage;
step S24, if the voltage is higher than the safe voltage, acquiring a plurality of second output currents of the photovoltaic power generation device, which are acquired by the current acquisition unit within a second preset time period;
step S25, calculating a second effective output current of the photovoltaic power generation device in a second preset time period according to the plurality of second output currents; and judging whether the second effective output current is greater than a preset shutdown value, and controlling the oil engine to be shut down if the second effective output current is greater than the preset shutdown value.
2. The method of claim 1, further comprising: if the buffer interval is not reached, jumping to execute step S21; or, if the voltage is lower than or equal to the safe voltage, jumping to execute step S21; or, if the current value is less than or equal to the preset shutdown value, skipping to execute step S21.
3. The method of claim 1, further comprising: if the alarm duration is reached, judging whether the voltage of the second battery is lower than the buffer voltage;
and if the second battery voltage is lower than the buffer voltage, the alarm output unit generates an alarm signal and sends the alarm signal to the remote terminal through the communication unit so as to carry out remote operation.
4. The method of claim 1, wherein after the control oil engine is shut down, the method further comprises:
step S11, acquiring a first battery voltage acquired by a voltage acquisition unit; judging whether the first battery voltage is lower than an alarm voltage or not; if the voltage is lower than the alarm voltage, controlling the oil engine to start;
step S12, if the first battery voltage is higher than or equal to the warning voltage, determining whether the first battery voltage is lower than a buffer voltage;
step S13, if the voltage is lower than the buffer voltage, acquiring a plurality of first output currents of the photovoltaic power generation device, which are acquired by the current acquisition unit within a first preset time period;
step S14, calculating a first effective output current of the photovoltaic power generation device in a first preset time period according to the plurality of first output currents; and judging whether the first effective output current is smaller than a preset starting value or not, and controlling the oil engine to start if the first effective output current is smaller than the preset starting value.
5. The method of claim 4, further comprising: if the voltage is higher than or equal to the buffer voltage, jumping to execute step S11; or, if the value is greater than or equal to the preset starting value, the step S11 is skipped to.
6. An oil engine control device of a light-oil complementary power supply system for a base station is characterized by comprising:
the central processing unit is suitable for acquiring a second battery voltage acquired by the voltage acquisition unit and judging whether the second battery voltage is higher than a shutdown voltage or not; if the operating time of the oil engine is less than or equal to the shutdown voltage, judging whether the operating time of the oil engine reaches the alarm time; if the alarm time length is not reached, judging whether the timing time length of the timing unit reaches a buffer interval or not; if the buffer interval is reached, judging whether the voltage of the second battery is higher than the safe voltage; if the voltage is higher than the safe voltage, acquiring a plurality of second output currents of the photovoltaic power generation device, which are acquired by the current acquisition unit within a second preset time period; calculating a second effective output current of the photovoltaic power generation device in a second preset time period according to the plurality of second output currents; judging whether the second effective output current is larger than a preset shutdown value or not;
the output control unit is suitable for controlling the oil engine to be shut down if the output voltage is higher than the shut-down voltage; or if the alarm time length is reached, controlling the oil engine to stop; or if the oil engine is larger than the preset shutdown value, controlling the oil engine to be shut down.
7. An oil engine control system, comprising: the base station gloss oil complementary power supply system comprises a voltage acquisition unit, a current acquisition unit, a timing unit and the oil engine control device of the base station gloss oil complementary power supply system of claim 6.
8. A computing device, comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction causes the processor to execute the operation corresponding to the oil engine control method of the base station gloss oil complementary power supply system according to any one of claims 1 to 5.
9. A computer storage medium, wherein at least one executable instruction is stored in the storage medium, and the executable instruction causes a processor to execute operations corresponding to the oil engine control method of the optical oil complementary power supply system for base station in any one of claims 1 to 5.
CN201910465152.1A 2019-05-30 2019-05-30 Oil engine control method, device and system of gloss oil complementary power supply system for base station Active CN112018879B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101572428A (en) * 2009-02-25 2009-11-04 艾默生网络能源有限公司 Method for controlling power supply system featuring complementation of solar energy and fuel energy
CN104953927A (en) * 2014-03-25 2015-09-30 上海格伏能源科技有限公司 Novel solar and diesel hybrid power generation system
CN105656173A (en) * 2016-03-24 2016-06-08 漳州科华技术有限责任公司 Photovoltaic and oil-engine complementation charging control device and control method thereof
CN106803670A (en) * 2017-02-15 2017-06-06 武汉理工大学 The wind-solar-diesel storage direct-current micro-grid Battery charge controller system and method for low cost
CN106849343A (en) * 2017-01-23 2017-06-13 武汉理工大学 The communication base station independently-powered switching system of wind-solar-diesel storage and power switching method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101951014A (en) * 2010-10-29 2011-01-19 上海致远绿色能源有限公司 Wind-light-diesel commercial power integral power supply system
CN105552964A (en) * 2016-02-17 2016-05-04 王晓民 Photoelectric complementary system of oilfield pumping unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101572428A (en) * 2009-02-25 2009-11-04 艾默生网络能源有限公司 Method for controlling power supply system featuring complementation of solar energy and fuel energy
CN104953927A (en) * 2014-03-25 2015-09-30 上海格伏能源科技有限公司 Novel solar and diesel hybrid power generation system
CN105656173A (en) * 2016-03-24 2016-06-08 漳州科华技术有限责任公司 Photovoltaic and oil-engine complementation charging control device and control method thereof
CN106849343A (en) * 2017-01-23 2017-06-13 武汉理工大学 The communication base station independently-powered switching system of wind-solar-diesel storage and power switching method
CN106803670A (en) * 2017-02-15 2017-06-06 武汉理工大学 The wind-solar-diesel storage direct-current micro-grid Battery charge controller system and method for low cost

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
新能源不间断供电系统的优化设计与应用研究;陈丰;《通信电源技术》;20121125;第29卷(第06期);全文 *

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