CN115912318A - Power supply system bus architecture, energy scheduling control method and system - Google Patents

Power supply system bus architecture, energy scheduling control method and system Download PDF

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Publication number
CN115912318A
CN115912318A CN202211445106.3A CN202211445106A CN115912318A CN 115912318 A CN115912318 A CN 115912318A CN 202211445106 A CN202211445106 A CN 202211445106A CN 115912318 A CN115912318 A CN 115912318A
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platform
bus
load
power
module
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鹿才华
朱立颖
李小飞
许晨航
施凯敏
张艺
刘锡洋
孙骥龙
林�建
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Shenzhen Aerospace New Power Technology Ltd
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Shenzhen Aerospace New Power Technology Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

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Abstract

The invention discloses a power system bus architecture, an energy scheduling control method and a system, wherein the power system bus architecture comprises the following components: a bus architecture; a solar array power regulation module; the platform battery charging and discharging adjusting module is connected between the platform full adjusting bus and the platform non-adjusting bus; the platform storage battery module is used for supplying power to the low-power pulse load through the platform without regulating the bus; the load storage battery module is used for supplying power to the high-power pulse load through a load bus; the energy conversion module is used for controlling the flow direction of energy between the platform full-adjustment bus and the load bus; and the energy scheduling control module is used for acquiring the voltage of the platform full-regulation bus, the voltage of the load bus and the voltage of the platform non-regulation bus and respectively regulating the working states of the solar array power regulation module, the platform battery charging and discharging regulation module and the energy conversion module. The power system bus architecture provided by the embodiment of the invention can solve the problems of poor stability and low reliability of the conventional power system.

Description

Power supply system bus architecture, energy scheduling control method and system
Technical Field
The invention relates to the technical field of satellite power supply correlation, in particular to a power supply system bus architecture, and an energy scheduling control method and system.
Background
In a load satellite such as a synthetic aperture radar and a laser, a power supply system is required to have the capability of short-term, pulse and high-power output. The traditional design concept adopts a single unregulated bus power architecture as shown in fig. 1, a bus is directly connected with a storage battery pack, and the on-rail bus voltage fluctuates along with the battery voltage. When the pulse load works, the power of the pulse load is directly discharged and provided by a power supply controller (PCU) and a low internal resistance storage battery, and because the bus does not need voltage stabilization closed-loop Control, the scheme has the advantages of high response speed, simple structure, small volume and weight, low cost and the like, but the pulse load can bring large electromagnetic interference to the bus when working, and the normal work of a stable load (a single machine with high requirement on the stability of the bus) is influenced; a single group of storage battery is configured in the traditional idea, when the storage battery fails, the load of the whole satellite and the power supply of a platform are lost, a single-point failure mode influencing the service life of the satellite exists, and the stability and the reliability of the whole power supply system are poor.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a power system bus architecture which can solve the problems of poor stability and low reliability of the conventional power system.
The invention also provides an energy scheduling control method, an energy scheduling control system and a computer readable storage medium.
According to an embodiment of the first aspect of the invention, the power system bus architecture comprises:
the bus structure comprises a platform full-regulation bus, a platform non-regulation bus and a load bus, wherein one end of the platform full-regulation bus is used for connecting a solar cell array, the other end of the platform full-regulation bus is used for connecting a stable load, one end of the platform non-regulation bus is connected with the platform full-regulation bus, the other end of the platform non-regulation bus is used for connecting a low-power pulse load, one end of the load bus is connected with the platform full-regulation bus, and the other end of the load bus is used for connecting a high-power pulse load;
the solar array power regulating module is used for receiving the total output voltage output by the solar cell array and supplying power to the stable load through the platform full-regulation bus;
the platform battery charging and discharging adjusting module is provided with a charging input end, a discharging output end and a platform non-adjusting bus connecting end, wherein the charging input end and the discharging output end are both connected with the platform full-adjusting bus, and the platform non-adjusting bus connecting end is used for connecting the platform non-adjusting bus;
the system comprises a platform storage battery module and a load storage battery module, wherein one end of the platform storage battery module is respectively connected with a connecting end of a platform non-adjusting bus and the platform non-adjusting bus, the other end of the platform storage battery module is connected with a ground wire, and the platform storage battery module is used for storing energy and supplying power to the low-power pulse load through the platform non-adjusting bus; one end of the load storage battery module is connected with the load bus, the other end of the load storage battery module is connected with the ground wire, and the load storage battery module is used for storing energy and supplying power to the high-power pulse load through the load bus;
the energy conversion module is connected between the platform full-adjusting bus and the load bus and used for controlling the energy flowing direction between the platform full-adjusting bus and the load bus;
and the energy scheduling control module is used for acquiring the voltage of the platform full-regulation bus, the voltage of the platform non-regulation bus and the voltage of the load bus and respectively regulating the working states of the solar array power regulation module, the platform battery charging and discharging regulation module and the energy conversion module so as to keep the voltage of the platform full-regulation bus within a preset full-regulation stable range.
The power system bus architecture according to the embodiment of the invention has at least the following beneficial effects:
the stable load, the low-power pulse load and the high-power pulse load are isolated through a three-bus framework formed by a platform full-regulation bus and a platform non-regulation bus and a load bus, and the electromagnetic interference of the stable load when the low-power pulse load and the high-power pulse load work is reduced. The platform storage battery module and the load storage battery module form a double-battery structure, energy bidirectional flow between the platform full-regulation bus and the load bus is achieved through the platform battery charging and discharging regulation module and the energy conversion module, when any one of the platform storage battery module and the load storage battery module breaks down, energy sharing of the platform full-regulation bus and the load bus is achieved through the other one of the platform battery module and the load storage battery module, system reliability and stability are improved, output power of a power supply system is improved, and energy utilization efficiency is improved. The voltage of the platform full-regulation bus, the voltage of the platform non-regulation bus and the voltage of the load bus can be collected through the energy dispatching control module, the working states of the solar array power regulation module, the platform battery charging and discharging regulation module and the energy conversion module are respectively regulated, so that the voltage of the platform full-regulation bus is kept in a preset stable range, the energy dispatching control module controls the power modules to work intermittently in turn, the design difficulty of the converter is reduced, and the service life of a power supply system is prolonged. The power system bus architecture provided by the embodiment of the invention can solve the problems of poor stability and low reliability of the conventional power system.
According to some embodiments of the invention, the energy conversion module comprises:
the load bus converter is connected between the platform full-regulation bus and the load bus, and is used for converting the voltage output by the platform full-regulation bus and transmitting the voltage to the load bus;
and the platform bus converter is connected with the load bus converter in parallel, and is used for converting the voltage output by the load bus and transmitting the voltage to the platform full-regulation bus.
According to some embodiments of the invention, the platform battery charge and discharge regulation module comprises:
the platform battery charging electronic adjusting module is used for receiving the voltage output by the platform full-adjusting bus, converting the voltage and then respectively transmitting the voltage to the platform battery module and the platform non-adjusting bus;
and the platform battery discharge electronic adjusting module is used for receiving the voltage output by the platform storage battery module, converting the voltage and transmitting the voltage to the platform full-adjusting bus.
An energy scheduling control method according to a second aspect of the present invention is applied to the energy scheduling control module according to the first aspect of the present invention, where the energy scheduling control module includes an energy scheduling inner loop and a load bus voltage stabilizing inner loop; the energy scheduling control method comprises the following steps:
acquiring the required power of the stable load, the total output power output by the solar cell array, the platform discharge working condition of the platform storage battery module, the discharge regulation working condition of the platform battery charge-discharge regulation module and the load discharge working condition of the load storage battery module;
executing an energy scheduling strategy according to the total output power, the required power, the platform discharge working condition, the discharge regulation working condition and the load discharge working condition, wherein the energy scheduling strategy comprises a first scheduling strategy and a second scheduling strategy;
wherein the first scheduling policy comprises the steps of: controlling the energy conversion module to dispatch energy from the load bus and transmit the energy to the platform full-regulation bus, so that the platform full-regulation bus supplies power to the stable load, and the platform full-regulation bus supplies power to the low-power pulse load sequentially through the platform battery charging and discharging regulation module and the platform non-regulation bus; adjusting the working states of the energy conversion module and the platform battery charging and discharging adjusting module so as to keep the voltage of the platform full-adjustment bus within a preset full-adjustment stable range;
the second scheduling policy comprises the steps of: and disconnecting the energy dispatching inner ring from the energy conversion module, and selecting the load bus voltage-stabilizing inner ring to control the energy conversion module to dispatch energy from the platform full-regulation bus and transmit the energy to the load bus, so that the voltage of the load bus is kept in a preset load stability range and supplies power to the high-power pulse load.
The energy scheduling control method according to the embodiment of the invention at least has the following beneficial effects:
when the total output power output by the solar cell array is lower than the required power of the stable load, the platform battery charging and discharging adjusting module is needed to discharge the platform storage battery module and provide the discharged power for the platform full-adjustment bus, so that the working voltage is provided for the stable load. If the platform storage battery module or the platform battery charging and discharging adjusting module breaks down, the load storage battery module still works normally, energy is dispatched from the load bus and transmitted to the platform full-adjusting bus by controlling the energy transformation module, the voltage of the platform full-adjusting bus can be stabilized, and therefore power is supplied to the stable load, and power can be supplied to the low-power pulse load through the platform full-adjusting bus sequentially through the platform battery charging and discharging adjusting module and the platform non-adjusting bus. In the process, the working states of the energy conversion module and the platform battery charging and discharging adjusting module are adjusted, so that the voltage of the platform full-adjusting bus is kept in a preset stable range, and the normal work of a power supply system can be kept. If the load storage battery module breaks down, the platform storage battery module and the platform battery charging and discharging adjusting module still work normally, the energy conversion module is controlled to dispatch energy from the platform full-adjustment bus and transmit the energy to the load bus by disconnecting the energy dispatching inner ring and the energy conversion module and selecting the load bus voltage-stabilizing inner ring, and therefore normal voltage of the load bus can be guaranteed, and the high-power pulse load can work normally. According to the energy scheduling control method, when the platform storage battery module or the platform battery charging and discharging adjusting module fails or the load storage battery module fails, the energy sharing of the platform full adjusting bus and the load bus is utilized, the normal work of the power supply system is guaranteed, the reliability and the stability of the system are improved, the output power of the power supply system is improved, and the energy utilization efficiency is improved.
According to some embodiments of the invention, said executing an energy scheduling strategy according to said total output power, said demanded power, said platform discharge condition, said discharge regulation condition and said load discharge condition comprises the steps of:
and if the total output power is lower than the required power, the platform discharge working condition represents that the platform storage battery module is a fault working condition or the discharge regulation working condition represents that the platform battery charge-discharge regulation module is a fault working condition and the load discharge working condition represents that the load storage battery module is a normal working condition, and the first scheduling strategy is executed.
According to some embodiments of the invention, said executing an energy scheduling strategy according to said total output power, said demanded power, said platform discharge condition, said discharge regulation condition and said load discharge condition further comprises the steps of:
and if the load discharging working condition represents that the load storage battery module is a fault working condition, executing the second scheduling strategy.
According to some embodiments of the invention, the energy scheduling policy further comprises a third scheduling policy, and the energy scheduling control method further comprises the steps of:
acquiring platform charging power required by charging the platform storage battery module and load charging power required by charging the load storage battery module;
executing the third scheduling policy according to the total output power, the required power, the platform charging power, and the load charging power;
wherein the third scheduling policy comprises the steps of: controlling the solar array power regulating module to output voltage to the platform full regulating bus so that the platform full regulating bus supplies power to the stable load, charges the platform storage battery module through the platform battery charging and discharging regulating module and charges the load storage battery module through the energy conversion module in sequence; and adjusting the input current of the energy conversion module so that the voltage of the platform full-adjustment bus is kept within a preset full-adjustment stable range.
According to some embodiments of the invention, said executing said third scheduling policy according to said total output power, said demanded power, said platform charging power and said load charging power comprises the steps of:
and if the total output power is greater than the sum of the required power and the platform charging power and is less than the sum of the required power, the platform charging power and the load charging power, executing the third scheduling strategy.
The energy dispatching control system according to the third aspect of the embodiment of the invention is applied to the energy dispatching control module according to the embodiment of the first aspect, wherein the energy dispatching control module comprises an energy dispatching inner ring and a load bus voltage stabilizing inner ring; the energy scheduling control system includes:
a system state obtaining unit, configured to obtain a required power of the stable load, the total output power output by the solar cell array, a platform discharge condition of the platform battery module, a discharge regulation condition of the platform battery charge-discharge regulation module, and a load discharge condition of the load battery module;
the energy scheduling strategy executing unit is used for executing an energy scheduling strategy according to the total output power, the required power, the platform discharging working condition, the discharging regulation working condition and the load discharging working condition, wherein the energy scheduling strategy comprises a first scheduling strategy and a second scheduling strategy; wherein the first scheduling policy comprises the steps of: controlling the energy conversion module to dispatch energy from the load bus and transmit the energy to the platform full-regulation bus so as to enable the platform full-regulation bus to supply power to the stable load and enable the platform full-regulation bus to supply power to the low-power pulse load sequentially through the platform battery charging and discharging regulation module and the platform non-regulation bus; adjusting the working states of the energy conversion module and the platform battery charging and discharging adjusting module so as to keep the voltage of the platform full-adjustment bus within a preset full-adjustment stable range; the second scheduling policy comprises the steps of: and disconnecting the energy dispatching inner ring from the energy conversion module, and selecting the load bus voltage-stabilizing inner ring to control the energy conversion module to dispatch energy from the platform full-regulation bus and transmit the energy to the load bus, so that the voltage of the load bus is kept in a preset load stability range and supplies power to the high-power pulse load.
The energy scheduling control system according to the embodiment of the invention at least has the following beneficial effects:
the system state acquisition unit can acquire the total output power output by the solar cell array, the required power of the stable load, the platform discharge working condition of the platform storage battery module, the discharge regulation working condition of the platform battery charge-discharge regulation module and the load discharge working condition of the load storage battery module. When the total output power output by the solar cell array is lower than the required power, the platform battery charging and discharging adjusting module is needed to discharge the platform storage battery module and provide the discharged power for the platform full-adjustment bus, so that the working voltage is provided for stabilizing the load. If the platform storage battery module or the platform battery charging and discharging adjusting module breaks down, the load storage battery module still works normally, energy is dispatched from the load bus and transmitted to the platform full-adjusting bus by controlling the energy transformation module, the voltage of the platform full-adjusting bus can be stabilized, and therefore power is supplied to the stable load, and power can be supplied to the low-power pulse load through the platform full-adjusting bus sequentially through the platform battery charging and discharging adjusting module and the platform non-adjusting bus. In the process, the working states of the energy conversion module and the platform battery charging and discharging adjusting module are adjusted, so that the voltage of the platform full-adjusting bus is kept in a preset stable range, and the normal work of a power supply system can be kept. If the load storage battery module has a fault, the platform storage battery module and the platform battery charging and discharging adjusting module still work normally, the energy conversion module is controlled to dispatch energy from the platform full-adjusting bus and transmit the energy to the load bus by disconnecting the energy dispatching inner ring and the energy conversion module and selecting the load bus voltage-stabilizing inner ring, so that the normal voltage of the load bus can be ensured, and the high-power pulse load can work normally. The energy dispatching control system provided by the embodiment of the invention can ensure the normal work of the power supply system, improve the reliability and stability of the system, improve the output power of the power supply system and improve the energy utilization efficiency by sharing the energy of the platform full-regulation bus and the load bus when the platform storage battery module or the platform battery charging and discharging regulation module has a fault or the load storage battery module has a fault.
A computer-readable storage medium according to an embodiment of the fourth aspect of the present invention stores computer-executable instructions for performing the energy scheduling control method as described in the embodiment of the second aspect. Since the computer-readable storage medium adopts all technical solutions of the energy scheduling control method of the above embodiment, at least all beneficial effects brought by the technical solutions of the above embodiments are achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a power supply schematic of a prior art single bus architecture;
FIG. 2 is a schematic diagram of a portion of an energy dispatch control module according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a bus architecture of a power system according to an embodiment of the invention;
fig. 4 is a flowchart of an energy scheduling control method according to an embodiment of the present invention.
Reference numerals:
the platform fully-regulated bus 110, the platform unregulated bus 120 and the load bus 130;
a solar cell array 200;
a stabilizing load 300;
a low-power pulse load 410, a high-power pulse load 420;
a solar array power conditioning module 500;
a platform battery charge regulation module 610, a platform battery discharge regulation module 620;
platform battery module 710, load battery module 720;
load bus converter 810, platform bus converter 820;
an energy dispatch control module 900.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, if there are first, second, etc. described, it is only for the purpose of distinguishing technical features, and it is not understood that relative importance is indicated or implied or that the number of indicated technical features is implicitly indicated or that the precedence of the indicated technical features is implicitly indicated.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the upper, lower, etc., is indicated based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly defined, terms such as arrangement, installation, connection and the like should be broadly understood, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
A power supply system bus bar architecture according to an embodiment of the first aspect of the present invention will be described in detail with reference to fig. 1 to 3, and it should be understood that the embodiments described below are only a part of the embodiments of the present invention, and not all embodiments.
The power system bus architecture according to the embodiment of the first aspect of the present invention includes a bus architecture, a solar array power regulation module 500, a platform battery charging and discharging regulation module, a platform battery module 710 and a load battery module 720, an energy conversion module, and an energy scheduling control module 900.
The bus structure comprises a platform full-regulation bus 110, a platform non-regulation bus 120 and a load bus 130, wherein one end of the platform full-regulation bus 110 is used for connecting the solar cell array 200, the other end of the platform full-regulation bus is used for connecting the stable load 300, one end of the platform non-regulation bus 120 is connected with the platform full-regulation bus 110, the other end of the platform non-regulation bus is used for connecting the low-power pulse load 410, one end of the load bus 130 is connected with the platform full-regulation bus 110, and the other end of the load bus is used for connecting the high-power pulse load 420;
the solar array power regulating module 500 is used for receiving the total output voltage output by the solar cell array 200 and supplying power to the stable load 300 through the platform full-regulation bus 110;
the platform battery charging and discharging adjusting module is provided with a charging input end, a discharging output end and a platform non-adjusting bus 120 connecting end, the charging input end and the discharging output end are both connected with the platform full-adjusting bus 110, and the platform non-adjusting bus 120 connecting end is used for connecting the platform non-adjusting bus 120;
the system comprises a platform storage battery module 710 and a load storage battery module 720, wherein one end of the platform storage battery module 710 is respectively connected with the connecting end of a platform non-regulation bus 120 and the platform non-regulation bus 120, the other end of the platform storage battery module 710 is connected with a ground wire, and the platform storage battery module 710 is used for storing energy and supplying power to a low-power pulse load 410 through the platform non-regulation bus 120; one end of the load storage battery module 720 is respectively connected with the platform full-adjustment bus 110 and the load bus 130, the other end is connected with the ground wire, and the load storage battery module 720 is used for storing energy and supplying power to the high-power pulse load 420 through the load bus 130;
the energy conversion module is connected between the platform full-adjusting bus 110 and the load bus 130 and is used for controlling the energy flowing direction between the platform full-adjusting bus 110 and the load bus 130;
the energy scheduling control module 900 is configured to collect the voltage of the platform full-regulation bus 110, the voltage of the platform unregulated bus 120, and the voltage of the load bus 130, and respectively regulate the operating states of the solar array power regulation module 500, the platform battery charging and discharging regulation module, and the energy conversion module, so that the voltage of the platform full-regulation bus 110 is kept within a preset full-regulation stable range.
As shown in fig. 3, the solar cell array 200 outputs energy during the light period and does not operate during the shadow period. In the illumination period, the priority order of the output energy of the solar cell array 200 is as follows: the solar array power adjusting module 500 supplies power to the stable load 300, the platform battery module 710 is charged through the platform battery charging and discharging adjusting module, the load battery module 720 is charged through the energy conversion module, and surplus energy is consumed by short-circuit shunting or open circuit.
The solar array Power adjustment module 500 may employ a direct energy transfer based S3R topology or a Maximum Power Point Tracking (MPPT) based DCDC converter. As shown in fig. 3, the solar array power adjusting module 500, the platform battery charging and discharging adjusting module, and the energy conversion module can respectively realize the expansion of the conversion power in a parallel connection manner, and the specific number can be selected according to the actual requirement, which should not be construed as a limitation to the present invention.
The energy scheduling control module 900 adopts a full-regulation bus error amplifier, and calculates an energy scheduling signal through an internal PID (proportion integration differentiation) by acquiring the voltage of the platform full-regulation bus 110, the voltage of the platform non-regulation bus 120 and the voltage of the load bus 130, so that the working modes of the solar array power regulation module 500, the platform battery charging and discharging regulation module and the energy conversion module are controlled, energy scheduling is realized, and the voltage of the platform full-regulation bus 110 is always kept in a preset full-regulation stable range under the steady-state and dynamic conditions. In some embodiments, the fully regulated bus error amplifier may employ triple redundancy or quad redundancy to improve reliability, but should not be construed as limiting the invention. The solar array power adjusting module 500, the platform battery charging and discharging adjusting module and the energy conversion module are all voltage-controlled constant current sources, that is, the output current amplitude is in linear proportional relation with the energy dispatching signal.
In some embodiments, the platform fully-regulated bus 110 has a voltage of 42V, the platform unregulated bus 120 has a voltage of 26V to 38V, and the load bus 130 has a voltage of 80V to 120V, although the specific voltage values should not be construed as limiting the invention.
The solar array power adjusting module 500 is responsible for power adjustment of the solar cell array 200 in the illumination period, the platform cell charge-discharge adjusting module is responsible for charge adjustment of the platform storage battery module 710 in the illumination period and discharge adjustment of the platform storage battery module 710 in the ground shadow period, and the two modules work intermittently to generate the platform full-adjustment bus 110 and the platform non-adjustment bus 120. In the first aspect, the energy conversion module isolates and converts the platform fully-regulated bus 110 into the load battery module 720 for charging, and generates the load bus 130. As shown in fig. 2, the energy dispatching control module 900 has an energy dispatching inner ring and a load bus voltage stabilizing inner ring inside, and the energy conversion module has two corresponding operating modes. Under a normal working condition, the output end of the energy conversion module is connected with the load storage battery module 720, the load storage battery access signal is in a connection state, and the energy conversion module charges the load storage battery module 720 in a constant-current and constant-voltage mode according to a preset sequence under the control of the energy scheduling inner ring; under the working condition that the load storage battery module 720 has an open-circuit fault, the load storage battery access signal is in a disconnected state, and the energy conversion module outputs stable voltage under the control of the load bus voltage-stabilizing inner ring to supply power to the high-power pulse load 420 all the time. In a second aspect, the load bus 130 is isolated and transformed by the energy transformation module to generate the platform fully-regulated bus 110, and only when the output power is insufficient in the shadow period due to the open-circuit failure of the platform battery module 710 or the failure of the platform battery charging and discharging regulation module, energy is dispatched from the load bus 130 by the energy transformation module and transmitted to the platform fully-regulated bus 110, so that the platform fully-regulated bus 110 supplies power to the stable load 300, and the platform fully-regulated bus 110 supplies power to the low-power pulse load 410 sequentially through the platform battery charging and discharging regulation module and the platform non-regulated bus 120.
The power supply system bus structure provided by the embodiment of the invention adopts the platform storage battery module 710 and the load storage battery module 720 to store energy, when a single storage battery fails, the energy can be released through the other storage battery, and the energy sharing between the platform full-regulation bus 110 and the load bus 130 is realized through the energy conversion module, so that the system reliability is improved.
In some embodiments, the energy conversion module and the load battery module 720 may be expanded as a single entity, with inputs connected to the platform conditioning bus 110, each entity creating a load bus 130 to power the plurality of groups of high power pulsed loads 420.
According to the power system bus architecture provided by the embodiment of the invention, the stable load 300, the low-power pulse load 410 and the high-power pulse load 420 are isolated through the three-bus architecture formed by the platform full-regulation bus 110, the platform non-regulation bus 120 and the load bus 130, so that the electromagnetic interference of the stable load 300 during the work of the low-power pulse load 410 and the high-power pulse load 420 is reduced. The platform storage battery module 710 and the load storage battery module 720 form a double-battery structure, energy bidirectional flow between the platform full-regulation bus 110 and the load bus 130 is realized through the platform battery charging and discharging regulation module and the energy conversion module, and when any one of the platform storage battery module 710 and the load storage battery module 720 breaks down, energy sharing between the platform full-regulation bus 110 and the load bus 130 is realized through the other one, so that the reliability and stability of a system are improved, the output power of a power supply system is improved, and the energy utilization efficiency is improved. The voltage of the platform full-regulation bus 110, the voltage of the platform non-regulation bus 120 and the voltage of the load bus 130 can be collected through the energy dispatching control module 900, and the working states of the solar array power regulation module 500, the platform battery charging and discharging regulation module and the energy conversion module are respectively regulated, so that the voltage of the platform full-regulation bus 110 is kept in a preset stable range, the energy dispatching control module 900 controls the power modules to work intermittently in turn, the design difficulty of the converter is reduced, and the service life of the power supply system is prolonged. The power system bus architecture provided by the embodiment of the invention can solve the problems of poor stability and low reliability of the conventional power system.
In some embodiments of the present invention, referring to fig. 3, the energy conversion module includes a load bus converter 810 and a platform bus converter 820. The load bus converter 810 is connected between the platform fully-regulated bus 110 and the load bus 130, and the load bus converter 810 is used for converting the voltage output by the platform fully-regulated bus 110 and transmitting the voltage to the load bus 130; and the platform bus converter 820 is connected in parallel with the load bus converter 810, and the platform bus converter 820 is used for converting the voltage output by the load bus 130 and transmitting the voltage to the platform full-regulation bus 110.
Under normal operating conditions, load bus converter 810 isolates and converts full platform conditioning bus 110 into load battery module 720 for charging and generates load bus 130. The load bus converter 810 charges the load storage battery modules 720 in a constant-current and constant-voltage mode according to a preset sequence under the control of the energy scheduling inner ring; under the condition that the load storage battery module 720 has an open-circuit fault, the load bus converter 810 outputs a stable voltage under the control of the load bus voltage-stabilizing inner ring, and the power is supplied to the high-power pulse load 420 all the time.
Under normal operating conditions, platform bus converter 820 does not operate. Only when the output power is insufficient in the shadow period due to the open-circuit failure of the platform battery module 710 or the failure of the platform battery charge-discharge regulation module, the platform bus converter 820 dispatches energy from the load bus 130 and transmits the energy to the platform full-regulation bus 110, so that the platform full-regulation bus 110 supplies power to the stable load 300, and the platform full-regulation bus 110 supplies power to the low-power pulse load 410 sequentially through the platform battery charge-discharge regulation module and the platform non-regulation bus 120.
The load bus converter 810 and the platform bus converter 820 may adopt isolated topologies such as push-pull, full-bridge, LLC, etc., and may implement power expansion in parallel, but the specific structure and the number of parallel connections are selected according to actual needs and are not to be considered as limitations of the present invention. The specific operation of load bus converter 810 and platform bus converter 820 is well known in the art and will not be described herein.
In some embodiments of the present invention, referring to fig. 3, the platform battery charge and discharge regulation module includes a platform battery charge regulation module 610 and a platform battery discharge regulation module 620. The platform battery charging sub-regulation module 610 is configured to receive the voltage output by the platform full-regulation bus 110, perform voltage conversion, and transmit the voltage to the platform storage battery module 710 and the platform non-regulation bus 120 respectively; and the platform battery discharging sub-regulation module 620 is configured to receive the voltage output by the platform battery module 710, perform voltage conversion, and transmit the voltage to the platform full-regulation bus 110. The platform battery charging and discharging adjusting module 610 is responsible for charging and adjusting the platform battery module 710 in the illumination period, and the platform battery discharging and discharging adjusting module 620 is responsible for discharging and adjusting the platform battery module 710 in the shadow period. The platform battery charging and discharging adjusting module 610 may adopt a non-isolated step-down topology, and the platform battery discharging and discharging adjusting module 620 may adopt a non-isolated step-up topology, and may all implement power expansion in a parallel manner, but the specific structure and the number of parallel connections are all selected according to actual needs, and are not to be considered as limitations of the present invention. The specific working principle of the platform battery charging and electronic regulating module 610 and the platform battery discharging and electronic regulating module 620 is the prior art known to those skilled in the art, and will not be described herein.
The energy scheduling control method according to the second aspect of the present invention will be described in detail and fully with reference to fig. 1 to 4, and it is obvious that the embodiments described below are some, but not all, embodiments of the present invention.
The energy scheduling control method according to the second aspect of the present invention is applied to the energy scheduling control module 900 according to the first aspect of the present invention, where the energy scheduling control module 900 includes an energy scheduling inner loop and a load bus voltage stabilizing inner loop; the energy scheduling control method comprises the following steps:
acquiring the required power of a stable load 300, the total output power output by the solar cell array 200, the platform discharge working condition of the platform storage battery module 710, the discharge regulation working condition of the platform battery charge-discharge regulation module and the load discharge working condition of the load storage battery module 720;
executing an energy scheduling strategy according to the total output power, the required power, the platform discharge working condition, the discharge regulation working condition and the load discharge working condition, wherein the energy scheduling strategy comprises a first scheduling strategy and a second scheduling strategy;
wherein the first scheduling policy comprises the steps of: controlling the energy conversion module to dispatch energy from the load bus 130 and transmit the energy to the platform full-regulation bus 110, so that the platform full-regulation bus 110 supplies power to the stable load 300, and the platform full-regulation bus 110 supplies power to the low-power pulse load 410 sequentially through the platform battery charging and discharging regulation module and the platform non-regulation bus 120; adjusting the working states of the energy conversion module and the platform battery charging and discharging adjusting module so as to keep the voltage of the platform full-adjustment bus 110 within a preset full-adjustment stable range;
the second scheduling policy comprises the steps of: the connection between the energy scheduling inner loop and the energy conversion module is disconnected, and the load bus voltage-stabilizing inner loop is selected to control the energy conversion module to schedule energy from the platform full-regulation bus 110 and transmit the energy to the load bus 130, so that the voltage of the load bus 130 is kept within a preset load stability range and supplies power to the high-power pulse load 420.
As shown in fig. 3, the solar cell array 200 outputs energy during the light period and does not operate during the shadow period. In the illumination period, the priority order of the output energy of the solar cell array 200 is as follows: the solar array power regulating module 500 supplies power to the stable load 300, the platform battery module 710 is charged through the platform battery charging and discharging regulating module, the load battery module 720 is charged through the energy conversion module, and surplus energy is shunted by short circuit or consumed by open circuit. In the shadow period, under the condition that the platform discharge working condition, the discharge regulation working condition and the load discharge working condition are all normal working conditions, the platform battery charge-discharge regulation module is responsible for the discharge regulation of the platform storage battery module 710, and the platform full regulation bus 110 is generated to supply power for the stable load 300. The energy conversion module charges the load storage battery module 720 in a constant current and constant voltage mode according to a preset sequence under the control of the energy scheduling inner ring, and generates a load bus 130 to supply power to the high-power pulse load 420.
Under the condition that the platform discharge working condition or the discharge regulation working condition is a fault working condition and the load discharge working condition is a normal working condition, energy is dispatched from the load bus 130 through the energy conversion module and is transmitted to the platform full regulation bus 110, so that the platform full regulation bus 110 supplies power to the stable load 300, and the platform full regulation bus 110 supplies power to the low-power pulse load 410 sequentially through the platform battery charge-discharge regulation module and the platform non-regulation bus 120.
The platform discharge working condition and the discharge regulation working condition are both normal working conditions, and under the condition that the load discharge working condition is a fault working condition, the energy conversion module outputs stable voltage under the control of the load bus voltage-stabilizing inner ring to supply power to the high-power pulse load 420 all the time.
It should be noted that, as shown in fig. 2, the energy scheduling control module 900 includes an operating mode selector, and the energy scheduling control method according to the embodiment of the present invention is implemented by the operating mode selector. The working mode selector has a first input end, a second input end, a selection control end and a selection output end, the first input end is connected with the energy scheduling inner ring, the second input end is connected with the load bus voltage-stabilizing inner ring, the selection output end is connected with the load bus converter 810, the selection control end is used for inputting a load battery access signal, and the load battery access signal is used for representing a load discharge working condition of the load battery module 720, namely, an access state of the load battery module 720.
According to the energy scheduling control method provided by the embodiment of the invention, when a single storage battery fails, the energy is released through another group of storage batteries, and the energy sharing between the platform full-regulation bus 110 and the load bus 130 is realized through the energy conversion module, so that the system reliability is improved.
According to the energy scheduling control method of the embodiment of the present invention, when the total output power output by the solar cell array 200 is lower than the required power of the regulated load 300, the platform battery charging and discharging regulation module is required to discharge the platform battery module 710 and provide the discharged power to the platform full-regulation bus 110, so as to provide the working voltage for the regulated load 300. If the platform battery module 710 or the platform battery charging and discharging adjustment module fails, the load battery module 720 still works normally, energy is dispatched from the load bus 130 and transmitted to the platform full adjustment bus 110 by controlling the energy transformation module, the voltage of the platform full adjustment bus 110 can be stabilized, and thus the power is supplied to the stabilized load 300, and the power can be supplied to the low-power pulse load 410 through the platform full adjustment bus 110 sequentially via the platform battery charging and discharging adjustment module and the platform non-adjustment bus 120. In the process, the working states of the energy conversion module and the platform battery charging and discharging adjusting module are adjusted, so that the voltage of the platform full-adjusting bus 110 is kept within a preset stable range, and the normal work of a power supply system can be kept. If the load storage battery module 720 has a fault, the platform storage battery module 710 and the platform battery charging and discharging adjustment module still work normally, and the energy conversion module is controlled to dispatch energy from the platform full-adjustment bus 110 and transmit the energy to the load bus 130 by disconnecting the energy dispatching inner ring and the energy conversion module and selecting the load bus voltage-stabilizing inner ring, so that the normal voltage of the load bus 130 can be ensured, and the high-power pulse load 420 can work normally. According to the energy scheduling control method provided by the embodiment of the invention, when the platform storage battery module 710 or the platform battery charging and discharging adjusting module has a fault or the load storage battery module 720 has a fault, the normal work of the power supply system is ensured through the energy sharing of the platform full-adjusting bus 110 and the load bus 130, the reliability and stability of the system are improved, the output power of the power supply system is improved, and the energy utilization efficiency is improved.
In some embodiments of the present invention, referring to fig. 3, executing an energy scheduling strategy according to the total output power, the required power, the platform discharge condition, the discharge regulation condition, and the load discharge condition includes the following steps:
and if the total output power is lower than the required power, the platform discharging working condition represents that the platform storage battery module 710 is in a fault working condition or the discharging adjusting working condition represents that the platform battery charging and discharging adjusting module is in a fault working condition, and the load discharging working condition represents that the load storage battery module 720 is in a normal working condition, executing a first scheduling strategy.
In the shadow period, the solar cell array 200 does not work, the total output power is lower than the required power, the platform cell charging and discharging adjusting module is responsible for discharging adjustment of the platform storage battery module 710, and the platform full-adjusting bus 110 is generated to supply power for the stable load 300. The energy conversion module charges the load storage battery module 720 in a constant current and constant voltage mode according to a preset sequence under the control of the energy scheduling inner ring, and generates a load bus 130 to supply power to the high-power pulse load 420. The platform discharge working condition or the discharge regulation working condition is a fault working condition, and under the condition that the load discharge working condition is a normal working condition, the platform full regulation bus 110 loses a power source, energy is dispatched from the load bus 130 through the energy conversion module and is transmitted to the platform full regulation bus 110 at the moment, so that the platform full regulation bus 110 supplies power to the stable load 300, the platform full regulation bus 110 supplies power to the low-power pulse load 410 sequentially through the platform battery charge-discharge regulation module and the platform non-regulation bus 120, and the energy sharing of the platform full regulation bus 110 and the load bus 130 is realized through the energy conversion module, so that the normal operation of a power supply system can be ensured when the platform battery charge-discharge regulation module or the platform storage battery module 710 has a fault, the reliability and the stability of the system are improved, the output power of the power supply system is improved, and the energy utilization efficiency is improved.
In some embodiments of the present invention, referring to fig. 2 and 3, the executing the energy scheduling policy according to the total output power, the required power, the platform discharge condition, the discharge regulation condition, and the load discharge condition further includes the following steps: and if the load discharging working condition represents that the load storage battery module 720 is a fault working condition, executing a second scheduling strategy. The platform discharge working condition and the discharge regulation working condition are both normal working conditions, and under the condition that the load discharge working condition is a fault working condition, the energy conversion module outputs stable voltage under the control of the load bus voltage-stabilizing inner ring to supply power to the high-power pulse load 420 all the time, and is not controlled by the energy dispatching inner ring any more, and no matter whether the energy output by the solar cell array 200 is sufficient or not, the energy conversion module outputs voltage to the load bus 130 all the time, so that the high-power pulse load 420 of the load storage battery module 720 can still work normally under the fault working condition.
In some embodiments of the present invention, referring to fig. 3, the energy scheduling policy further includes a third scheduling policy, and the energy scheduling control method further includes the steps of:
acquiring platform charging power required by charging the platform storage battery module 710 and load charging power required by charging the load storage battery module 720;
if the total output power is larger than the sum of the required power and the platform charging power and smaller than the sum of the required power, the platform charging power and the load charging power, executing a third scheduling strategy;
wherein the third scheduling policy comprises the steps of: controlling the solar array power regulating module 500 to output voltage to the platform full regulating bus 110, so that the platform full regulating bus 110 sequentially supplies power to the stable load 300, charges the platform storage battery module 710 through the platform battery charging and discharging regulating module, and charges the load storage battery module 720 through the energy conversion module; the input current to the energy conversion module is regulated so that the voltage of the platform full regulation bus 110 remains within a preset full regulation stability range.
The output energy of the solar cell array 200 is greater than the sum of the energy required by the stable load 300 and the charging of the platform storage battery module 710, and the surplus energy cannot meet the energy required by the charging of the load storage battery module 720. At this time, the solar array power regulation module 500 outputs all energy of the solar cell array 200 to the platform fully-regulated bus 110 to supply power to the stable load 300 and charge the platform battery module 710, and the surplus charges the load battery module 720 through the load bus converter 810, the load bus converter 810 stabilizes the voltage of the platform fully-regulated bus 110 to 42V by regulating the input current of the load bus converter 810 under the control of the energy scheduling control module 900, the magnitude of the input current of the load bus converter 810 is in direct proportion to the amplitude of the energy scheduling signal, and the platform bus converter 820 and the platform battery discharge regulation module 620 do not work.
In some embodiments of the invention, the energy scheduling policies further comprise a fourth scheduling policy, a fifth scheduling policy and a sixth scheduling policy. And if the total output power is greater than the sum of the required power, the platform charging power and the load charging power, executing a fourth scheduling strategy: and controlling the solar array power regulating module 500 to output voltage to the platform full regulating bus 110, and reducing the energy transferred to the platform full regulating bus 110 by the solar cell array 200 in a manner of shunting or disconnecting a path to the ground. At this time, the platform bus converter 820 and the platform battery discharging sub-regulation module 620 do not work; the platform battery charging electronic regulation module 610 takes power from the platform full regulation bus 110 to charge the platform battery module 710 and supply power to the low-power pulse load 410, and the load bus converter 810 takes power from the platform full regulation bus 110 to charge the load battery module 720 and supply power to the high-power pulse load 420.
If the total output power is greater than the required power, but the surplus energy cannot satisfy the platform charging power required by the platform storage battery module 710 for charging, executing a fifth scheduling strategy: the solar array power regulation module 500 is controlled to output all power to the platform full-regulation bus 110 to supply power for the stable load 300, surplus energy is charged for the platform storage battery module 710 through the platform battery charging sub-regulation module 610, the platform battery charging sub-regulation module 610 stabilizes the voltage of the platform full-regulation bus 110 to 42V through regulating the input current of the platform battery charging sub-regulation module 610 under the control of the energy scheduling control module 900, the magnitude of the input current of the platform battery charging sub-regulation module 610 is in direct proportion to the amplitude of an energy scheduling signal, and the load bus converter 810, the platform bus converter 820 and the platform battery discharging sub-regulation module 620 do not work.
If the total output power is less than the required power, executing a sixth scheduling strategy: the solar array power adjusting module 500 is controlled to output all power to the platform full-adjusting bus 110, the platform storage battery module 710 is controlled to discharge, energy is supplemented for the platform full-adjusting bus 110 through the platform battery discharging sub adjusting module 620, the voltage of the platform full-adjusting bus 110 is stabilized to be 42V, the output current of the platform battery discharging sub adjusting module 620 is in inverse proportion to the amplitude of the energy scheduling signal, and the platform battery charging sub adjusting module 610, the load bus converter 810 and the platform bus converter 820 do not work.
The energy scheduling control system according to the third aspect of the present invention will be described in detail and fully with reference to fig. 1 to 4, and it should be understood that the embodiments described below are only a part of the embodiments of the present invention, and not all embodiments.
The energy scheduling control system according to the third aspect of the present invention is applied to the energy scheduling control module 900 of the first aspect of the present invention, where the energy scheduling control module 900 includes an energy scheduling inner loop and a load bus voltage stabilizing inner loop; the energy scheduling control system comprises a system state acquisition unit and an energy scheduling strategy execution unit.
A system state obtaining unit, configured to obtain a required power of the stable load 300, a total output power output by the solar cell array 200, a platform discharge condition of the platform battery module 710, a discharge regulation condition of the platform battery charge/discharge regulation module, and a load discharge condition of the load battery module 720;
the energy scheduling strategy executing unit is used for executing an energy scheduling strategy according to the total output power, the required power, the platform discharging working condition, the discharging regulation working condition and the load discharging working condition, and the energy scheduling strategy comprises a first scheduling strategy and a second scheduling strategy; wherein the first scheduling policy comprises the steps of: controlling the energy conversion module to dispatch energy from the load bus 130 and transmit the energy to the platform fully-regulated bus 110, so that the platform fully-regulated bus 110 supplies power to the stable load 300, and the platform fully-regulated bus 110 supplies power to the low-power pulse load 410 sequentially through the platform battery charge-discharge regulation module and the platform non-regulated bus 120; adjusting the working states of the energy conversion module and the platform battery charging and discharging adjusting module so as to keep the voltage of the platform full-adjustment bus 110 within a preset full-adjustment stable range; the second scheduling policy comprises the steps of: the connection between the energy scheduling inner loop and the energy conversion module is disconnected, and the load bus voltage-stabilizing inner loop is selected to control the energy conversion module to schedule energy from the platform full-regulation bus 110 and transmit the energy to the load bus 130, so that the voltage of the load bus 130 is kept within a preset load stability range and supplies power to the high-power pulse load 420.
As shown in fig. 3, the solar cell array 200 outputs energy during the light period and does not operate during the shadow period. In the illumination period, the priority order of the output energy of the solar cell array 200 is as follows: the solar array power regulating module 500 supplies power to the stable load 300, the platform battery module 710 is charged through the platform battery charging and discharging regulating module, the load battery module 720 is charged through the energy conversion module, and surplus energy is shunted by short circuit or consumed by open circuit. In the shadow period, under the condition that the platform discharge working condition, the discharge regulation working condition and the load discharge working condition are all normal working conditions, the platform battery charge-discharge regulation module is responsible for the discharge regulation of the platform storage battery module 710, and the platform full regulation bus 110 is generated to supply power for the stable load 300. The energy conversion module charges the load storage battery module 720 in a constant current and constant voltage mode according to a preset sequence under the control of the energy scheduling inner ring, and generates a load bus 130 to supply power to the high-power pulse load 420.
Under the condition that the platform discharge working condition or the discharge regulation working condition is a fault working condition and the load discharge working condition is a normal working condition, energy is dispatched from the load bus 130 through the energy conversion module and is transmitted to the platform full regulation bus 110, so that the platform full regulation bus 110 supplies power to the stable load 300, and the platform full regulation bus 110 supplies power to the low-power pulse load 410 sequentially through the platform battery charge-discharge regulation module and the platform non-regulation bus 120.
The platform discharge working condition and the discharge regulation working condition are both normal working conditions, and under the condition that the load discharge working condition is a fault working condition, the energy conversion module outputs stable voltage under the control of the load bus voltage-stabilizing inner ring, so that power is supplied to the high-power pulse load 420 all the time.
It should be noted that, as shown in fig. 2, the energy scheduling control module 900 includes an operation mode selector, and the energy scheduling control system according to the embodiment of the present invention is implemented by the operation mode selector. The working mode selector is provided with a first input end, a second input end, a selection control end and a selection output end, the first input end is connected with the energy scheduling inner ring, the second input end is connected with the load bus voltage stabilization inner ring, the selection output end is connected with the load bus converter 810, the selection control end is used for inputting a load storage battery access signal, and the load storage battery access signal is used for representing a load discharging working condition of the load storage battery module 720, namely an access state of the load storage battery module 720.
The energy dispatching control system of the embodiment of the invention can release energy through another group of storage batteries when a single storage battery has a fault, and realize the energy sharing between the platform full-regulation bus 110 and the load bus 130 through the energy conversion module, thereby improving the system reliability.
According to the energy scheduling control system of the embodiment of the invention, the total output power output by the solar cell array 200, the required power of the stable load 300, the platform discharge condition of the platform battery module 710, the discharge regulation condition of the platform battery charge and discharge regulation module and the load discharge condition of the load battery module 720 can be obtained through the system state obtaining unit. When the total output power output by the solar cell array 200 is lower than the required power, the platform battery charging and discharging adjusting module is required to discharge the platform battery module 710 and provide the discharged power to the platform full-adjustment bus 110, so as to provide the working voltage for the stable load 300. If the platform battery module 710 or the platform battery charging and discharging adjustment module fails, the load battery module 720 still works normally, the energy conversion module is controlled to dispatch the electric energy from the load bus 130 and transmit the electric energy to the platform full adjustment bus 110, the voltage of the platform full adjustment bus 110 can be stabilized, so that the stable load 300 is supplied with power, and the platform full adjustment bus 110 can sequentially supply power to the low-power pulse load 410 through the platform battery charging and discharging adjustment module and the platform non-adjustment bus 120. In the process, the working states of the energy conversion module and the platform battery charging and discharging adjusting module are adjusted, so that the voltage of the platform full-adjusting bus 110 is kept within a preset stable range, and the normal work of a power supply system can be kept. If the load storage battery module 720 has a fault, the platform storage battery module 710 and the platform battery charging and discharging adjustment module still work normally, and the energy conversion module is controlled to dispatch energy from the platform full-adjustment bus 110 and transmit the energy to the load bus 130 by disconnecting the energy dispatching inner ring and the energy conversion module and selecting the load bus voltage-stabilizing inner ring, so that the normal voltage of the load bus 130 can be ensured, and the high-power pulse load 420 can work normally. The energy dispatching control system of the embodiment of the invention can ensure the normal work of the power supply system, improve the reliability and stability of the system, improve the output power of the power supply system and improve the energy utilization efficiency by sharing the energy of the platform full-adjusting bus 110 and the load bus 130 when the platform storage battery module 710 or the platform battery charging and discharging adjusting module fails or the load storage battery module 720 fails.
In addition, an embodiment of the present invention also provides a control apparatus including: a memory, a processor, and a computer program stored on the memory and executable on the processor. The processor and memory may be connected by a bus or other means.
The memory, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and these remote memories may be connected to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The non-transitory software programs and instructions required to implement the energy scheduling control method of the above embodiments are stored in a memory and, when executed by a processor, perform the energy scheduling control method of the above embodiments.
The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Furthermore, the fourth aspect of the present invention provides a computer-readable storage medium, which stores computer-executable instructions, where the computer-executable instructions are executed by a processor or a controller, and the processor is caused to execute the energy scheduling control method in the foregoing embodiments.
It will be understood by those of ordinary skill in the art that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, or suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. A power system bus architecture, comprising:
the bus structure comprises a platform full-regulation bus, a platform non-regulation bus and a load bus, wherein one end of the platform full-regulation bus is used for connecting a solar cell array, the other end of the platform full-regulation bus is used for connecting a stable load, one end of the platform non-regulation bus is connected with the platform full-regulation bus, the other end of the platform non-regulation bus is used for connecting a low-power pulse load, one end of the load bus is connected with the platform full-regulation bus, and the other end of the load bus is used for connecting a high-power pulse load;
the solar array power adjusting module is used for receiving the total output voltage output by the solar cell array and supplying power to the stable load through the platform full-adjusting bus;
the platform battery charging and discharging adjusting module is provided with a charging input end, a discharging output end and a platform non-adjusting bus connecting end, wherein the charging input end and the discharging output end are both connected with the platform full-adjusting bus, and the platform non-adjusting bus connecting end is used for connecting the platform non-adjusting bus;
the system comprises a platform storage battery module and a load storage battery module, wherein one end of the platform storage battery module is respectively connected with a connecting end of a platform non-adjusting bus and the platform non-adjusting bus, the other end of the platform storage battery module is connected with a ground wire, and the platform storage battery module is used for storing energy and supplying power to the low-power pulse load through the platform non-adjusting bus; one end of the load storage battery module is connected with the load bus, the other end of the load storage battery module is connected with the ground wire, and the load storage battery module is used for storing energy and supplying power to the high-power pulse load through the load bus;
the energy conversion module is connected between the platform full-adjusting bus and the load bus and is used for controlling the energy flowing direction between the platform full-adjusting bus and the load bus;
and the energy scheduling control module is used for acquiring the voltage of the platform full-regulation bus, the voltage of the platform non-regulation bus and the voltage of the load bus and respectively regulating the working states of the solar array power regulation module, the platform battery charging and discharging regulation module and the energy conversion module so as to keep the voltage of the platform full-regulation bus within a preset full-regulation stable range.
2. The power system bus architecture of claim 1, wherein the energy conversion module comprises:
the load bus converter is connected between the platform full-regulation bus and the load bus, and is used for converting the voltage output by the platform full-regulation bus and transmitting the voltage to the load bus;
and the platform bus converter is connected with the load bus converter in parallel, and is used for converting the voltage output by the load bus and transmitting the voltage to the platform full-regulation bus.
3. The power system bus architecture of claim 1, wherein the platform battery charge and discharge regulation module comprises:
the platform battery charging electronic adjusting module is used for receiving the voltage output by the platform full-adjusting bus, converting the voltage and then respectively transmitting the voltage to the platform battery module and the platform non-adjusting bus;
and the platform battery discharge electronic adjusting module is used for receiving the voltage output by the platform storage battery module, converting the voltage and transmitting the voltage to the platform full-adjusting bus.
4. An energy scheduling control method is applied to the energy scheduling control module according to any one of claims 1 to 3, wherein the energy scheduling control module comprises an energy scheduling inner ring and a load bus voltage stabilizing inner ring; the energy scheduling control method comprises the following steps:
acquiring the required power of the stable load, the total output power output by the solar cell array, the platform discharge working condition of the platform storage battery module, the discharge regulation working condition of the platform battery charge-discharge regulation module and the load discharge working condition of the load storage battery module;
executing an energy scheduling strategy according to the total output power, the required power, the platform discharge working condition, the discharge regulation working condition and the load discharge working condition, wherein the energy scheduling strategy comprises a first scheduling strategy and a second scheduling strategy;
wherein the first scheduling policy comprises the steps of: controlling the energy conversion module to dispatch energy from the load bus and transmit the energy to the platform full-regulation bus, so that the platform full-regulation bus supplies power to the stable load, and the platform full-regulation bus supplies power to the low-power pulse load sequentially through the platform battery charging and discharging regulation module and the platform non-regulation bus; adjusting the working states of the energy conversion module and the platform battery charging and discharging adjusting module so as to keep the voltage of the platform full-adjustment bus within a preset full-adjustment stable range;
the second scheduling policy comprises the steps of: and disconnecting the energy dispatching inner ring from the energy conversion module, and selecting the load bus voltage-stabilizing inner ring to control the energy conversion module to dispatch energy from the platform full-regulation bus and transmit the energy to the load bus, so that the voltage of the load bus is kept in a preset load stability range and supplies power to the high-power pulse load.
5. The energy scheduling control method of claim 4, wherein said executing an energy scheduling strategy based on said total output power, said demanded power, said platform discharge condition, said discharge regulation condition, and said load discharge condition comprises the steps of:
and if the total output power is lower than the required power, the platform discharging working condition represents that the platform storage battery module is a fault working condition or the discharging adjusting working condition represents that the platform battery charging and discharging adjusting module is a fault working condition and the load discharging working condition represents that the load storage battery module is a normal working condition, and executing the first scheduling strategy.
6. The energy scheduling control method of claim 5, wherein said executing an energy scheduling strategy based on said total output power, said demanded power, said platform discharge condition, said discharge regulation condition, and said load discharge condition, further comprises the steps of:
and if the load discharging working condition represents that the load storage battery module is a fault working condition, executing the second scheduling strategy.
7. The energy scheduling control method according to claim 4, wherein the energy scheduling policy further comprises a third scheduling policy, the energy scheduling control method further comprising the steps of:
acquiring platform charging power required by charging the platform storage battery module and load charging power required by charging the load storage battery module;
executing the third scheduling policy according to the total output power, the required power, the platform charging power, and the load charging power;
wherein the third scheduling policy comprises the steps of: controlling the solar array power regulating module to output voltage to the platform fully-regulated bus so that the platform fully-regulated bus supplies power to the stable load, charges the platform storage battery module through the platform battery charging and discharging regulating module and charges the load storage battery module through the energy conversion module in sequence; and adjusting the input current of the energy conversion module so that the voltage of the platform full-adjustment bus is kept within a preset full-adjustment stable range.
8. The energy scheduling control method of claim 7, wherein said executing the third scheduling policy based on the total output power, the demanded power, the platform charging power, and the load charging power comprises:
and if the total output power is greater than the sum of the required power and the platform charging power and less than the sum of the required power, the platform charging power and the load charging power, executing the third scheduling strategy.
9. An energy dispatching control system is applied to the energy dispatching control module according to any one of claims 1 to 3, wherein the energy dispatching control module comprises an energy dispatching inner ring and a load bus voltage stabilizing inner ring; the energy dispatching control system comprises:
a system state obtaining unit, configured to obtain a required power of the stable load, the total output power output by the solar cell array, a platform discharge condition of the platform battery module, a discharge regulation condition of the platform battery charge-discharge regulation module, and a load discharge condition of the load battery module;
the energy scheduling strategy executing unit is used for executing an energy scheduling strategy according to the total output power, the required power, the platform discharging working condition, the discharging regulation working condition and the load discharging working condition, wherein the energy scheduling strategy comprises a first scheduling strategy and a second scheduling strategy; wherein the first scheduling policy comprises the steps of: controlling the energy conversion module to dispatch energy from the load bus and transmit the energy to the platform full-regulation bus, so that the platform full-regulation bus supplies power to the stable load, and the platform full-regulation bus supplies power to the low-power pulse load sequentially through the platform battery charging and discharging regulation module and the platform non-regulation bus; adjusting the working states of the energy conversion module and the platform battery charging and discharging adjusting module so as to keep the voltage of the platform full-adjustment bus within a preset full-adjustment stable range; the second scheduling policy comprises the steps of: and disconnecting the energy dispatching inner ring from the energy conversion module, and selecting the load bus voltage-stabilizing inner ring to control the energy conversion module to dispatch energy from the platform full-regulation bus and transmit the energy to the load bus, so that the voltage of the load bus is kept in a preset load stability range and supplies power to the high-power pulse load.
10. A computer-readable storage medium storing computer-executable instructions for performing the energy scheduling control method of any one of claims 4 to 8.
CN202211445106.3A 2022-11-18 2022-11-18 Power supply system bus architecture, energy scheduling control method and system Pending CN115912318A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116454979A (en) * 2023-06-14 2023-07-18 北京钧天航宇技术有限公司 Distributed power supply system of modularized satellite, application method and electronic equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116454979A (en) * 2023-06-14 2023-07-18 北京钧天航宇技术有限公司 Distributed power supply system of modularized satellite, application method and electronic equipment

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