WO2023005132A1 - Système et dispositif de compensation automatique par le secteur d'un système photovoltaïque à auto-compensation, et procédé associé - Google Patents

Système et dispositif de compensation automatique par le secteur d'un système photovoltaïque à auto-compensation, et procédé associé Download PDF

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Publication number
WO2023005132A1
WO2023005132A1 PCT/CN2021/141401 CN2021141401W WO2023005132A1 WO 2023005132 A1 WO2023005132 A1 WO 2023005132A1 CN 2021141401 W CN2021141401 W CN 2021141401W WO 2023005132 A1 WO2023005132 A1 WO 2023005132A1
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WIPO (PCT)
Prior art keywords
mains
power
photovoltaic
power supply
photoelectric
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PCT/CN2021/141401
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English (en)
Chinese (zh)
Inventor
许名俊
许崇德
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东莞市嘉达磁电制品有限公司
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Publication of WO2023005132A1 publication Critical patent/WO2023005132A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices

Definitions

  • the present application relates to the technical field of photovoltaic power supply, in particular to a self-testing type photoelectric mains automatic compensation system, equipment and method thereof.
  • the conventional approach is to design or improve the performance of equipment that consumes energy such as electric motors.
  • the total capacity of various types of motors in my country is about 420 million kilowatts, and the electricity consumption accounts for about 60% of the country's electricity consumption.
  • This kind of disc motor is to avoid the occurrence of magnetic resistance by designing the internal structure of the motor, effectively reduce the input power, reduce energy consumption, and increase the output power, so that the motor can achieve super high efficiency.
  • Photovoltaic power generation is a technology that directly converts light energy into electrical energy by using the photovoltaic effect at the semiconductor interface.
  • photovoltaic power generation still has unstable output, which limits the development and application of photovoltaic power supply and is not conducive to large-scale promotion. The above situation needs to be improved urgently.
  • the application provides a self-testing type photoelectric mains automatic compensation system, equipment and method thereof.
  • a self-tasting photoelectric mains automatic compensation system includes:
  • the photoelectric access module is used to electrically connect with external photovoltaic power generation devices to realize access to photovoltaic power
  • the photoelectric boost module is used to boost the photovoltaic power received by the photoelectric access terminal
  • the mains access module is used to electrically connect with the external power grid to realize the mains power connected to the power grid;
  • the mains rectification module is used to rectify the mains electric energy received by the mains access terminal;
  • the sensing conversion module is used to detect the voltage of photovoltaic electric energy and convert it into corresponding photovoltaic output power
  • the comparison module is used to compare the photovoltaic output power with the external load power to obtain the comparison result
  • the mains compensation module is used to send the power supply ratio command of the photovoltaic power and the mains power according to the comparison result;
  • the dual power supply drive module is used to drive the power supply output module to output according to the power supply ratio according to the power supply ratio command;
  • the power supply output module is used to output corresponding electric energy according to the power supply ratio.
  • the photovoltaic output power is compared with the external load power, and automatically switches among various power supply output modes according to the comparison result to ensure the stability of the output power. Equipped with a mains access module that is connected to the mains, the mains is used as a supplementary power for photovoltaics, and when there are power fluctuations in the photovoltaic power, the output power can be stabilized by supplementing the mains. There is no need to install additional storage batteries and inverters to stabilize the output, free up the space occupied by the device, reduce the purchase cost, and facilitate the large-scale promotion of photovoltaic power supply.
  • a self-tasting photoelectric mains automatic replenishment device based on the above-mentioned self-tasting photoelectric mains automatic replenishment system, the equipment includes:
  • An intelligent compensation controller a photoelectric booster and a mains rectifier
  • the photoelectric booster is provided with a photoelectric access port
  • the mains rectifier is provided with a mains access port
  • the intelligent compensation controller is provided with a first input port, a second input port, a main processing chip, a sensor conversion circuit, a comparison chip, a dual power supply drive circuit and a power supply output port, and the sensor conversion circuit, comparison chip, dual
  • the power drive circuit is connected with the main processing chip;
  • the output end of the photoelectric booster is connected to the first input port of the intelligent compensation controller,
  • the output end of the mains rectifier is connected to the second input port of the intelligent compensation controller
  • Both the first input port and the second input port are connected to the power supply output port through a dual power supply drive circuit.
  • the photoelectric booster plays a role of boosting the voltage of photovoltaic electric energy.
  • the mains rectifier plays the role of rectifying the mains from alternating current to direct current.
  • the sensing conversion circuit is used to detect the voltage value of the photovoltaic electric energy, and convert the voltage value into a function corresponding to the photovoltaic output power.
  • the comparison chip is used to compare the photovoltaic output power with the load power to obtain the comparison result.
  • the main processing chip plays the role of sensor conversion control and comparison control, and plays the role of obtaining the power supply ratio command based on the analysis and processing of the comparison result, thereby controlling the action of the dual power supply drive circuit.
  • the dual power supply drive circuit acts as an output switch, and controls the output of photovoltaic power and mains power according to the power supply ratio.
  • the device further includes: a photovoltaic array, the photovoltaic array includes a combiner box and several pieces of photovoltaic modules, the output ends of the several pieces of photovoltaic modules are electrically connected to the input ends of the combiner box, and the output ends of the combiner box are connected to the Optical access port connection.
  • a photovoltaic array includes a combiner box and several pieces of photovoltaic modules, the output ends of the several pieces of photovoltaic modules are electrically connected to the input ends of the combiner box, and the output ends of the combiner box are connected to the Optical access port connection.
  • the solar energy can be converted into photovoltaic direct current.
  • the device further includes: a mains power grid, the output end of the mains power grid is electrically connected to the mains power access port.
  • the device further includes: a DC load, the DC load is provided with a DC load driver, and the power supply output port is electrically connected to the DC load driver.
  • the device further includes: a wireless communication device connected to the main processing chip.
  • the power supply ratio command is sent to the external terminal.
  • the device further includes: a photovoltaic power generation meter connected to the main processing chip.
  • a self-tasting photoelectric mains automatic compensation method based on the above-mentioned self-tasting photoelectric mains automatic compensation system, includes the following steps:
  • the specific steps of sending the power supply ratio instruction of photovoltaic electric energy and mains electric energy include:
  • the power supply ratio instruction for sending photovoltaic power and mains power is to use only photovoltaic power
  • the power supply ratio instruction for sending photovoltaic power and mains power is to use photovoltaic power first, and the part where the load power is greater than the photovoltaic output power uses mains power;
  • the power supply ratio instruction for sending photovoltaic power and mains power is to use only mains power.
  • the present application includes at least one of the following beneficial technical effects:
  • This application compares the photovoltaic output power with the external load power, and automatically switches among various power supply output modes according to the comparison results to ensure the stability of the output power.
  • the mains is used as supplementary power for photovoltaics.
  • the output power can be stabilized by supplementing the mains. There is no need to install additional storage batteries and inverters to stabilize the output, free up the space occupied by the device, reduce the purchase cost, and facilitate the large-scale promotion of photovoltaic power supply.
  • FIG. 1 is a block diagram of a self-tasting photoelectric mains automatic compensation system according to Embodiment 1 of the present application.
  • Fig. 2 is a simple structure schematic diagram of a self-tasting type photoelectric mains automatic compensation device in Embodiment 1 of the present application.
  • Fig. 3 is a flow chart of the steps of a self-testing photoelectric mains automatic compensation method according to Embodiment 1 of the present application.
  • FIG. 4 is a flow chart of specific steps in Step 7 of a self-testing type photoelectric mains automatic compensation method described in Embodiment 1 of the present application.
  • Fig. 5 is a simple structural diagram of a self-testing photoelectric mains automatic compensation device according to Embodiment 2 of the present application.
  • the application provides a self-testing type photoelectric mains automatic compensation system, including:
  • the photoelectric access module is used to electrically connect with external photovoltaic power generation devices to realize access to photovoltaic power
  • the photoelectric boost module is used to boost the photovoltaic power received by the photoelectric access terminal
  • the mains access module is used to electrically connect with the external power grid to realize the mains power connected to the power grid;
  • the mains rectification module is used to rectify the mains electric energy received by the mains access terminal;
  • the sensing conversion module is used to detect the voltage of photovoltaic electric energy and convert it into corresponding photovoltaic output power
  • the comparison module is used to compare the photovoltaic output power with the external load power to obtain the comparison result
  • the mains compensation module is used to send the power supply ratio command of the photovoltaic power and the mains power according to the comparison result;
  • the dual power supply drive module is used to drive the power supply output module to output according to the power supply ratio according to the power supply ratio command;
  • the power supply output module is used to output corresponding electric energy according to the power supply ratio.
  • This application is equipped with relevant modules connected to the mains, and uses the mains as supplementary power for photovoltaics.
  • the output power can be stabilized by supplementing the mains.
  • the external photovoltaic power generation device realizes the function of converting solar energy into photovoltaic electric energy, and realizes the function of connecting photovoltaic electric energy through the photovoltaic access module.
  • the mains power access module is connected to the mains power through the external power grid.
  • the external load is connected through the power supply output module.
  • the voltage of the photovoltaic electric energy is sensed by the sensor conversion module, and converted into the corresponding photovoltaic output power.
  • the comparison module the photovoltaic output power is compared with the load power. If the comparison result of the photovoltaic output power is not less than the load power, cooperate with the photoelectric boost module to boost the photovoltaic power, so that the voltage of the photovoltaic power is slightly higher than that passed through the market.
  • the voltage of the mains electric energy obtained after rectification by the electric rectification module uses the principle of high voltage priority, and then achieves the effect of preferentially using photovoltaic electric energy to supply power to the load.
  • the mains compensation module sends the power supply ratio command of photovoltaic power and mains power, that is, the command to only use photovoltaic power, and then the dual power supply drive module controls the power supply output module to only output the photoelectric access module according to the power supply ratio command. Photovoltaic electricity.
  • the mains compensation module sends the power supply ratio command of photovoltaic power and mains power, that is, photovoltaic power is used preferentially, and the load power is greater than Part of the photovoltaic output power is taken from the mains power, and then the dual power supply drive module controls the power supply output module to preferentially output the photovoltaic power of the photoelectric access module according to the power supply ratio command, and outputs the mains power of the mains access module as electric energy Replenish.
  • the mains compensation module sends a power supply ratio command of photovoltaic electric energy and mains electric energy, that is, only photovoltaic electric energy is used. Furthermore, the dual power supply drive module controls the power supply output module to only output the mains power of the mains access module according to the power supply ratio command.
  • the present application provides a self-tasting type photoelectric mains automatic supplementary equipment, based on the above-mentioned self-tasting photoelectric mains automatic compensation system, the equipment includes:
  • the intelligent compensation controller 1 is provided with a first input port 4, a second input port 5, a main processing chip 6, a sensor conversion circuit 7, a comparison chip 8, a dual power supply drive circuit 9 and a power supply output port 10, and a sensor conversion circuit 7 , the comparison chip 8, and the dual power supply drive circuit 9 are all connected with the main processing chip 6;
  • the output terminal of the photoelectric booster 2 is connected with the first input port 4 of the intelligent compensation controller 1,
  • the output end of the mains rectifier 3 is connected to the second input port 5 of the intelligent compensation controller 1;
  • Both the first input port 4 and the second input port 5 are connected to the power supply output port 10 through the dual power supply drive circuit 9 .
  • the photoelectric booster 2 plays a role of boosting the voltage of photovoltaic electric energy.
  • the mains rectifier 3 plays the role of rectifying the mains from alternating current to direct current.
  • the sensing conversion circuit 7 is used to sense the voltage value of the photovoltaic electric energy, and convert the voltage value to the corresponding photovoltaic output power. Specifically, the input end of the sensing conversion circuit 7 is connected to the first input port 4, and the sensing conversion circuit The output end of 7 is connected with main processing chip 6.
  • the comparison chip 8 is used to compare the photovoltaic output power with the load power to obtain a comparison result.
  • the main processing chip 6 plays the role of sensor conversion control and comparison control, and plays the role of obtaining a power supply ratio command based on the analysis and processing of the comparison result, thereby controlling the action of the dual power supply driving circuit 9 .
  • the dual power supply drive circuit 9 functions as an output switch, and controls the output of photovoltaic power and mains power according to the power supply ratio.
  • the main processing chip 6 includes, but is not limited to, a highly integrated chip or a bionic chip
  • the sensor conversion circuit 7 includes, but is not limited to, a voltage sensor combined with an analog-to-digital converter.
  • the comparison chip 8 includes, but is not limited to, microprocessing chips such as single-chip microcomputer modules.
  • the dual power supply drive circuit 9 includes, but is not limited to, a photovoltaic mains switching switch.
  • the equipment further includes: a photovoltaic array, the photovoltaic array includes a combiner box and several pieces of photovoltaic modules, the output terminals of several pieces of photovoltaic modules are electrically connected to the input terminals of the combiner box, and the output terminals of the combiner box are connected to the photoelectric terminals. Ingress port connection.
  • the photovoltaic array cooperates with the combiner box as a photovoltaic power generation device to convert solar energy into photovoltaic direct current.
  • the device also includes: a mains power grid, the output end of the mains power grid is electrically connected to the mains power access port.
  • the utility grid serves as the source of AC utility power.
  • the device further includes: a DC load, the DC load is provided with a DC load driver, and the power supply output port 10 is electrically connected to the DC load driver.
  • the DC load is a disc motor
  • the DC load driver is a disc motor driver
  • the working principle of the disc motor is as follows: the disc motor is provided with a first disk group, a second disk group, an induction group and an induction switch circuit, and uses the first magnetic part, the second magnetic part and the The third magnetic part and the fourth magnetic part arranged at intervals in the second disk group are magnetized in the moving direction, and the coils in the induction group are arranged perpendicular to the moving direction to form four magnetic force effects.
  • first magnetic part and the second magnetic part of the first disk group and the third magnetic part and the fourth magnetic part of the second disk group are opposite to each other and adjacent to the same polarity, they cooperate with the forward and reverse circuits of the induction switch to supply power Switching can prevent the occurrence of magnetic resistance, further improving the output power of the disc motor and reducing the load power.
  • the device further includes: an AC load, in which a DC-to-AC circuit and a filter circuit are electrically connected in sequence, and the power supply output port 10 is electrically connected to the input end of the DC-to-AC circuit.
  • an AC load in which a DC-to-AC circuit and a filter circuit are electrically connected in sequence
  • the power supply output port 10 is electrically connected to the input end of the DC-to-AC circuit.
  • the present application provides a self-testing type photoelectric mains automatic compensation method, based on the above-mentioned self-testing photoelectric mains automatic compensation system, comprising the following steps:
  • S5 Perform voltage detection on photovoltaic power and convert it into corresponding photovoltaic output power
  • the specific steps of sending the power supply ratio instruction of photovoltaic electric energy and mains electric energy include:
  • the device further includes: a wireless communication device 11 connected to the main processing chip 6 .
  • the wireless communication device 11 is used to transmit a power supply ratio command to an external terminal. Let the staff obtain the current power supply ratio information in different places, so as to understand the current photovoltaic output power situation. Play the role of remote monitoring.
  • Terminals include, but are not limited to, PCs, mobile terminals, or tablet terminals.
  • the device further includes: a photovoltaic power generation meter 12 connected to the main processing chip 6 .
  • the photovoltaic power generation meter 12 By setting the photovoltaic power generation meter 12 to measure the total electricity generated by the photovoltaic power generation per unit time, it is convenient for subsequent power supply billing operations.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention concerne le domaine technique de l'alimentation électrique photovoltaïque, et en particulier un système de compensation automatique par le secteur d'un système photovoltaïque à auto-compensation. Le système comprend : un module d'accès photovoltaïque, un module d'élévation de tension photovoltaïque, un module d'accès au secteur, un module de redressement du secteur, un module de conversion de détection, un module de comparaison, un module de compensation par le secteur, un module d'attaque à double source d'énergie et un module de sortie d'alimentation électrique. Dans la présente demande, le module d'accès au secteur est connecté au secteur, le secteur est utilisé comme énergie électrique supplémentaire du système photovoltaïque, et lorsqu'il existe une fluctuation de puissance de l'énergie électrique photovoltaïque, la puissance de sortie peut être stabilisée par complémentation par le secteur. Il n'est pas nécessaire de prévoir en plus une batterie de stockage et un onduleur pour stabiliser la sortie, l'espace occupé par un appareil est libéré, le coût d'achat est réduit, et l'alimentation électrique photovoltaïque est pratique à populariser dans une large plage. L'invention concerne également un dispositif de compensation automatique par le secteur d'un système photovoltaïque à auto-compensation, et un procédé de compensation automatique par le secteur d'un système photovoltaïque à auto-compensation.
PCT/CN2021/141401 2021-07-26 2021-12-25 Système et dispositif de compensation automatique par le secteur d'un système photovoltaïque à auto-compensation, et procédé associé WO2023005132A1 (fr)

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CN202110845828.7A CN113659693A (zh) 2021-07-26 2021-07-26 一种自尝式光电市电自动补偿系统、设备及其方法
CN202110845828.7 2021-07-26

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CN113659693A (zh) * 2021-07-26 2021-11-16 东莞市嘉达磁电制品有限公司 一种自尝式光电市电自动补偿系统、设备及其方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007004514A1 (fr) * 2005-07-06 2007-01-11 Sharp Kabushiki Kaisha Système générateur de puissance photovoltaïque utilisant une alimentation de réseau extérieur
EP2365598A1 (fr) * 2010-03-02 2011-09-14 Silvio Sottocorno Systéme et procédé d'alimentation d'énergie électrique de sources multiples pour une charge
CN103178549A (zh) * 2013-04-21 2013-06-26 胥明军 一种用于光伏辅助并网发电的控制系统及控制方法
CN113659693A (zh) * 2021-07-26 2021-11-16 东莞市嘉达磁电制品有限公司 一种自尝式光电市电自动补偿系统、设备及其方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105322638A (zh) * 2014-07-30 2016-02-10 深圳索瑞德电子有限公司 一种光伏系统能量输出方法及光伏供电系统
CN104142008A (zh) * 2014-08-18 2014-11-12 珠海格力电器股份有限公司 光伏空调器和光伏空调系统
CN104810913A (zh) * 2015-05-22 2015-07-29 蚌埠市徽泰电气自动化有限公司 基于市电补偿的光伏发电装置及其水泵系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007004514A1 (fr) * 2005-07-06 2007-01-11 Sharp Kabushiki Kaisha Système générateur de puissance photovoltaïque utilisant une alimentation de réseau extérieur
EP2365598A1 (fr) * 2010-03-02 2011-09-14 Silvio Sottocorno Systéme et procédé d'alimentation d'énergie électrique de sources multiples pour une charge
CN103178549A (zh) * 2013-04-21 2013-06-26 胥明军 一种用于光伏辅助并网发电的控制系统及控制方法
CN113659693A (zh) * 2021-07-26 2021-11-16 东莞市嘉达磁电制品有限公司 一种自尝式光电市电自动补偿系统、设备及其方法

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