CN116007136B - A control method for photovoltaic DC air conditioning system - Google Patents
A control method for photovoltaic DC air conditioning system Download PDFInfo
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Abstract
本发明公开了一种光伏直流空调系统的控制方法，涉及空调系统控制技术领域。具体包括以下步骤：获取所有空调的启动状态；当所有空调均同步启动时，判断对空调进行供电的光伏发电模块的发电功率是否大于第一预设阈值，若不满足，同时判断对空调进行供电的储能模块的储备电量是否大于第二预设阈值且处于电价峰值，若不满足，控制各个空调按预定的间隔时间依次从电网取电启动并限制完成启动的各个空调的运行功率，以避免空调启动时超过功率限值。旨在在多台直流空调同时开机时且光伏、储能的电量不足时，避免从电网取电超过功率限值。
The present invention discloses a control method for a photovoltaic DC air conditioning system, and relates to the technical field of air conditioning system control. Specifically, the following steps are included: obtaining the startup status of all air conditioners; when all air conditioners are started synchronously, judging whether the power generation power of the photovoltaic power generation module that supplies power to the air conditioner is greater than a first preset threshold value, if not, judging whether the reserve power of the energy storage module that supplies power to the air conditioner is greater than a second preset threshold value and is at the peak of the electricity price, if not, controlling each air conditioner to start up by taking power from the power grid in turn at a predetermined interval and limiting the operating power of each air conditioner that has completed the startup, so as to avoid exceeding the power limit when the air conditioner is started. The purpose is to avoid taking power from the power grid exceeding the power limit when multiple DC air conditioners are turned on at the same time and the power of photovoltaic and energy storage is insufficient.
Description
技术领域Technical Field
本发明涉及空调系统控制技术领域，特别涉及一种光伏直流空调系统的控制方法。The present invention relates to the technical field of air conditioning system control, and in particular to a control method for a photovoltaic direct current air conditioning system.
背景技术Background Art
传统家用光伏空调是一台外机拖一台内机运行，当一个家庭有多台内机需求时，就需要配置多台光伏空调外机，会出现资源浪费。在新型家用光伏空调应用方案中，一台光伏(储)直流空调可以和多台直流空调组合应用满足整个家庭的使用需求，但目前存在的问题是基于现有光伏侧、储能侧、电网侧的功率配置，空调开机过程需求的功率最大，当光伏不具备发电条件、储能电量不足时，多台空调同时开机，会出现从电网取电功率超过限值，长期使用，会影响空调寿命。Traditional household photovoltaic air conditioners are operated by one outdoor unit and one indoor unit. When a family needs multiple indoor units, multiple photovoltaic air conditioner outdoor units are required, which will result in a waste of resources. In the new household photovoltaic air conditioner application solution, one photovoltaic (storage) DC air conditioner can be combined with multiple DC air conditioners to meet the needs of the entire family. However, the current problem is that based on the power configuration of the existing photovoltaic side, energy storage side, and grid side, the power required during the air conditioner startup process is the largest. When the photovoltaic power generation conditions are not met and the energy storage power is insufficient, multiple air conditioners are turned on at the same time, and the power drawn from the grid exceeds the limit. Long-term use will affect the life of the air conditioner.
在多台直流空调同时开机时且光伏、储能的电量不足时，如何避免从电网取电超过功率限值，成为了亟待解决的技术难题。When multiple DC air conditioners are turned on at the same time and the power of photovoltaic and energy storage is insufficient, how to avoid drawing power from the grid in excess of the power limit has become a technical problem that needs to be solved urgently.
发明内容Summary of the invention
本发明的主要目的是提供一种光伏直流空调系统的控制方法，旨在在多台直流空调同时开机时且光伏、储能的电量不足时，避免从电网取电超过功率限值。The main purpose of the present invention is to provide a control method for a photovoltaic DC air conditioning system, which aims to avoid taking electricity from the power grid exceeding the power limit when multiple DC air conditioners are turned on at the same time and the power of photovoltaic and energy storage is insufficient.
为了实现上述目的，本发明提出一种光伏直流空调系统的控制方法，包括以下步骤：In order to achieve the above object, the present invention proposes a control method for a photovoltaic DC air conditioning system, comprising the following steps:
获取所有空调的启动状态；Get the startup status of all air conditioners;
当所有空调均同步启动时，判断对空调进行供电的光伏发电模块的发电功率是否大于第一预设阈值，若不满足，同时判断对空调进行供电的储能模块的储备电量是否大于第二预设阈值且处于电价峰值，若不满足，控制各个空调按预定的间隔时间依次从电网取电启动并限制完成启动的各个空调的运行功率，以避免空调启动时超过功率限值。When all air conditioners are started synchronously, it is determined whether the power generation power of the photovoltaic power generation module that supplies power to the air conditioner is greater than a first preset threshold value. If not, it is also determined whether the reserve power of the energy storage module that supplies power to the air conditioner is greater than a second preset threshold value and is at the peak of the electricity price. If not, each air conditioner is controlled to draw power from the power grid in turn at a predetermined interval and start, and the operating power of each air conditioner that has completed startup is limited to avoid exceeding the power limit when the air conditioner is started.
在本申请的一实施例中，判断对空调进行供电的光伏发电模块的发电功率是否大于第一预设阈值，若不满足，同时判断对空调进行供电的储能模块的储备电量是否大于第二预设阈值且处于电价峰值，若满足时，储能模块和电网共同为空调的运行进行供电并保持空调正常运行。In one embodiment of the present application, it is determined whether the power generation power of the photovoltaic power generation module that supplies power to the air conditioner is greater than a first preset threshold value. If not, it is also determined whether the reserve power of the energy storage module that supplies power to the air conditioner is greater than a second preset threshold value and is at the peak of the electricity price. If so, the energy storage module and the power grid jointly supply power for the operation of the air conditioner and maintain the normal operation of the air conditioner.
在本申请的一实施例中，判断对空调进行供电的光伏发电模块的发电功率是否大于第一预设阈值，若满足，同时判断对空调进行供电的储能模块的储备电量是否大于第二预设阈值且处于电价峰值，若满足，光伏发电模块和储能模块共同为空调的运行进行供电并保持空调正常运行。In one embodiment of the present application, it is determined whether the power generation power of the photovoltaic power generation module that supplies power to the air conditioner is greater than a first preset threshold value. If so, it is also determined whether the reserve power of the energy storage module that supplies power to the air conditioner is greater than a second preset threshold value and is at the peak of the electricity price. If so, the photovoltaic power generation module and the energy storage module jointly supply power for the operation of the air conditioner and maintain the normal operation of the air conditioner.
在本申请的一实施例中，判断对空调进行供电的光伏发电模块的发电功率是否大于第一预设阈值，若满足，同时判断对空调进行供电的储能模块的储备电量是否大于第二预设阈值且处于电价峰值，若不满足，光伏发电模块和电网共同为空调的运行进行供电并保持空调正常运行。In one embodiment of the present application, it is determined whether the power generation power of the photovoltaic power generation module that powers the air conditioner is greater than a first preset threshold value. If so, it is also determined whether the reserve power of the energy storage module that powers the air conditioner is greater than a second preset threshold value and is at the peak electricity price. If not, the photovoltaic power generation module and the power grid jointly power the air conditioner and maintain normal operation of the air conditioner.
在本申请的一实施例中，第二预设阈值为：30％。In one embodiment of the present application, the second preset threshold is: 30%.
在本申请的一实施例中，还包括：In one embodiment of the present application, it also includes:
当所有空调均未启动时，判断对空调进行供电的光伏发电模块是否可以发电；若是，判断储能模块的储备电量是否大于第三预设阈值，若是，则将光伏发电模块产生的电能供入电网。When all air conditioners are not started, determine whether the photovoltaic power generation module that powers the air conditioner can generate electricity; if so, determine whether the reserve power of the energy storage module is greater than a third preset threshold value, and if so, supply the electric energy generated by the photovoltaic power generation module to the power grid.
在本申请的一实施例中，判断对空调进行供电的光伏发电模块是否可以发电；若是，判断储能模块的储备电量是否大于第三预设阈值，若否，则将光伏发电模块产生的电能供入储能模块。In one embodiment of the present application, it is determined whether the photovoltaic power generation module that powers the air conditioner can generate electricity; if so, it is determined whether the reserve power of the energy storage module is greater than a third preset threshold value, and if not, the electric energy generated by the photovoltaic power generation module is supplied to the energy storage module.
在本申请的一实施例中，判断对空调进行供电的光伏发电模块是否可以发电；若否，判断储能模块的储备电量是否小于第二预设阈值且处于电价谷值，若是，则从电网取电供入储能模块。In one embodiment of the present application, it is determined whether the photovoltaic power generation module that powers the air conditioner can generate electricity; if not, it is determined whether the reserve power of the energy storage module is less than a second preset threshold and is at a valley value of electricity price; if so, electricity is taken from the power grid and supplied to the energy storage module.
在本申请的一实施例中，判断对空调进行供电的光伏发电模块是否可以发电；若否，判断储能模块的储备电量是否小于第二预设阈值且处于电价谷值，若否，系统处于待机状态。In one embodiment of the present application, it is determined whether the photovoltaic power generation module that powers the air conditioner can generate electricity; if not, it is determined whether the reserve power of the energy storage module is less than a second preset threshold and is at a valley value of the electricity price; if not, the system is in standby mode.
在本申请的一实施例中，所述第三预设阈值为80％。In an embodiment of the present application, the third preset threshold is 80%.
采用上述技术方案，当所有的空调同步启动时，在光伏发电模块和储能模块均无法提供电能时，通过控制各个空调按照预定的时间间隔依次从电网取电完成各个空调的启动，并同时对已经完成启动的空调进行运行功率的限制，从而保证后续没有启动的空调拥有足够的功率启动，避免所有的空调同步启动时超过功率限值，流程简单，便于实施。By adopting the above technical solution, when all the air conditioners are started synchronously, when the photovoltaic power generation module and the energy storage module are unable to provide electric energy, each air conditioner is controlled to take power from the power grid in turn at a predetermined time interval to complete the startup of each air conditioner, and at the same time, the operating power of the air conditioner that has been started is limited, thereby ensuring that the air conditioners that have not been started subsequently have sufficient power to start, avoiding exceeding the power limit when all the air conditioners are started synchronously. The process is simple and easy to implement.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
下面结合具体实施例和附图对本发明进行详细的说明，其中：The present invention is described in detail below with reference to specific embodiments and accompanying drawings, wherein:
图1为本发明第一种实施例的结构示意图。FIG1 is a schematic structural diagram of a first embodiment of the present invention.
具体实施方式DETAILED DESCRIPTION
为了使本发明的目的、技术方案及优点更加清楚，以下结合附图和实施例对本发明进行详细的说明。应当理解，以下具体实施例仅用以解释本发明，并不对本发明构成限制。In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the present invention and do not constitute a limitation to the present invention.
如图1所示，为了实现上述目的，本发明提出一种光伏直流空调系统的控制方法，包括以下步骤：As shown in FIG1 , in order to achieve the above object, the present invention proposes a control method for a photovoltaic DC air conditioning system, comprising the following steps:
获取所有空调的启动状态；Get the startup status of all air conditioners;
当所有空调均同步启动时，判断对空调进行供电的光伏发电模块的发电功率是否大于第一预设阈值，若不满足，同时判断对空调进行供电的储能模块的储备电量是否大于第二预设阈值且处于电价峰值，若不满足，控制各个空调按预定的间隔时间依次从电网取电启动并限制完成启动的各个空调的运行功率，以避免空调启动时超过功率限值。When all air conditioners are started synchronously, it is determined whether the power generation power of the photovoltaic power generation module that supplies power to the air conditioner is greater than a first preset threshold value. If not, it is also determined whether the reserve power of the energy storage module that supplies power to the air conditioner is greater than a second preset threshold value and is at the peak of the electricity price. If not, each air conditioner is controlled to draw power from the power grid in turn at a predetermined interval and start, and the operating power of each air conditioner that has completed startup is limited to avoid exceeding the power limit when the air conditioner is started.
具体的，一种光伏直流空调系统包括：一个光伏直流空调和多个连接在光伏直流空调的直流母线上的直流空调。Specifically, a photovoltaic DC air conditioning system includes: a photovoltaic DC air conditioner and a plurality of DC air conditioners connected to the DC bus of the photovoltaic DC air conditioner.
一种光伏直流空调系统的控制方法包括以下步骤：A control method for a photovoltaic DC air conditioning system comprises the following steps:
获取空调系统中光伏直流空调和直流空调的工作状态，本申请中的光伏直流空调是指连接有光伏组件并通过光伏组件产生的电量为自身的工作进行供电的空调设备。直流空调是指其可以直接使用直流电进行工作的空调，其不需要配备与其相对应的光伏组件。空调的工作状态至少包括开机或者关机两种。Obtain the working status of the photovoltaic DC air conditioner and the DC air conditioner in the air conditioning system. The photovoltaic DC air conditioner in this application refers to an air conditioning device that is connected to a photovoltaic module and uses the electricity generated by the photovoltaic module to power its own work. A DC air conditioner refers to an air conditioner that can directly use direct current to work, and it does not need to be equipped with a corresponding photovoltaic module. The working status of the air conditioner includes at least two types: on or off.
获取所有空调的当前所处的状态，当所有的空调均同步开启时，判断此时的光伏发电模块产生的发电功率是否满足第一预设阈值，当光伏发电模块产生的发电功率满足第一预设阈值时，表示当前光伏发电模块产生的电能足够保证空调稳定运行。当光伏发电模块产生的发电功率不满足第一预设阈值时，表示当前光伏发电模块产生的电能无法满足空调的稳定运行。The current status of all air conditioners is obtained. When all air conditioners are turned on synchronously, it is determined whether the power generated by the photovoltaic power generation module at this time meets the first preset threshold. When the power generated by the photovoltaic power generation module meets the first preset threshold, it means that the electric energy generated by the current photovoltaic power generation module is sufficient to ensure the stable operation of the air conditioner. When the power generated by the photovoltaic power generation module does not meet the first preset threshold, it means that the electric energy generated by the current photovoltaic power generation module cannot meet the stable operation of the air conditioner.
其中，当光伏发电模块的发电功率小于第一预设阈值时，此时光伏发电模块产生的电能不足以维持空调的运行，此时再判断储能模块中储备的电量是否大于第二预设阈值同时判断当前时刻的电价是否为电价高峰，若不满足，控制各个空调按预定的间隔时间依次从电网取电启动并限制完成启动的各个空调的运行功率，以避免空调启动时超过功率限值。Among them, when the power generation power of the photovoltaic power generation module is less than the first preset threshold, the electric energy generated by the photovoltaic power generation module is not enough to maintain the operation of the air conditioner. At this time, it is judged whether the power stored in the energy storage module is greater than the second preset threshold and whether the current electricity price is the peak electricity price. If not, each air conditioner is controlled to draw electricity from the power grid in turn at a predetermined interval and start, and the operating power of each air conditioner that has completed the startup is limited to avoid exceeding the power limit when the air conditioner is started.
储能模块是指可将电能进行储备的模块，储能模块与光伏发电模块、电网进行连接，可以将光伏发电模块产生的电能和电网的电能进行储备，以备需要时进行供电。The energy storage module refers to a module that can store electric energy. The energy storage module is connected to the photovoltaic power generation module and the power grid. The electric energy generated by the photovoltaic power generation module and the electric energy of the power grid can be stored for supplying power when needed.
当储能模块中储备的电能大于第二预设阈值时，表示当前储能模块可以进行正常的供电操作。当储能模块中储备的电能小于第二预设阈值时，表示储能模块中的电能较少，无法维持空调的运行。通过判断储能模块中的电量，可避免储能模块中的电能耗尽，延长了储能模块的使用寿命，同时保证了空调运行时的稳定性。When the electric energy stored in the energy storage module is greater than the second preset threshold, it indicates that the current energy storage module can perform normal power supply operation. When the electric energy stored in the energy storage module is less than the second preset threshold, it indicates that the electric energy in the energy storage module is insufficient and cannot maintain the operation of the air conditioner. By judging the amount of electricity in the energy storage module, the depletion of electric energy in the energy storage module can be avoided, the service life of the energy storage module can be extended, and the stability of the air conditioner during operation can be ensured.
判断当前时刻的电价是否为电价峰值，如果当前时刻为电价的峰值时，其会使得用户的投入费用增加，同时也不利于节能环保。Determine whether the current electricity price is the peak electricity price. If the current electricity price is the peak electricity price, it will increase the user's investment costs and is not conducive to energy conservation and environmental protection.
在储能模块中储备的电量不满足第二预设阈值同时当前时刻的电价为电价高峰时，储能模块无法进行空调运行的供电操作，此时，控制光伏空调和直流空调从电网上按照设定的先后顺序依次从电网取电，避免瞬时的功率超过总功率限值，同时对完成启动的空调进行功率限制，从而使得启动的空调设备功率降低，可以保证后续没有启动的空调可以按照正常的功率启动。When the amount of electricity stored in the energy storage module does not meet the second preset threshold and the current electricity price is at its peak, the energy storage module cannot supply power to the air conditioner. At this time, the photovoltaic air conditioner and the DC air conditioner are controlled to draw power from the power grid in the set order to avoid the instantaneous power exceeding the total power limit. At the same time, the power of the air conditioner that has been started is limited, so that the power of the started air-conditioning equipment is reduced, which can ensure that the air conditioners that have not been started subsequently can be started at normal power.
采用上述技术方案，当所有的空调同步启动时，在光伏发电模块和储能模块均无法提供电能时，通过控制各个空调按照预定的时间间隔依次从电网取电完成各个空调的启动，并同时对已经完成启动的空调进行运行功率的限制，从而保证后续没有启动的空调拥有足够的功率启动，避免所有的空调同步启动时超过功率限值，流程简单，便于实施。By adopting the above technical solution, when all the air conditioners are started synchronously, when the photovoltaic power generation module and the energy storage module are unable to provide electric energy, each air conditioner is controlled to take power from the power grid in turn at a predetermined time interval to complete the startup of each air conditioner, and at the same time, the operating power of the air conditioner that has been started is limited, thereby ensuring that the air conditioners that have not been started subsequently have sufficient power to start, avoiding exceeding the power limit when all the air conditioners are started synchronously. The process is simple and easy to implement.
在本申请的一实施例中，判断对空调进行供电的光伏发电模块的发电功率是否大于第一预设阈值，若不满足，同时判断对空调进行供电的储能模块的储备电量是否大于第二预设阈值且处于电价峰值，若满足时，储能模块和电网共同为空调的运行进行供电并保持空调正常运行。In one embodiment of the present application, it is determined whether the power generation power of the photovoltaic power generation module that supplies power to the air conditioner is greater than a first preset threshold value. If not, it is also determined whether the reserve power of the energy storage module that supplies power to the air conditioner is greater than a second preset threshold value and is at the peak of the electricity price. If so, the energy storage module and the power grid jointly supply power for the operation of the air conditioner and maintain the normal operation of the air conditioner.
具体的，判断此时的光伏发电模块产生的发电功率是否满足第一预设阈值，当光伏发电模块产生的发电功率满足第一预设阈值时，表示当前光伏发电模块产生的电能足够保证空调稳定运行。当光伏发电模块产生的发电功率不满足第一预设阈值时，表示当前光伏发电模块产生的电能无法满足空调的稳定运行。Specifically, it is determined whether the power generated by the photovoltaic power generation module at this time meets the first preset threshold value. When the power generated by the photovoltaic power generation module meets the first preset threshold value, it means that the electric energy generated by the current photovoltaic power generation module is sufficient to ensure the stable operation of the air conditioner. When the power generated by the photovoltaic power generation module does not meet the first preset threshold value, it means that the electric energy generated by the current photovoltaic power generation module cannot meet the stable operation of the air conditioner.
其中，当光伏发电模块的发电功率小于第一预设阈值时，此时光伏发电模块产生的电能不足以维持空调的运行，此时再判断储能模块中储备的电量是否大于第二预设阈值同时判断当前时刻的电价是否为电价高峰，若满足，储能模块和电网共同为空调的运行进行供电并保持空调正常运行。Among them, when the power generation power of the photovoltaic power generation module is less than the first preset threshold, the electric energy generated by the photovoltaic power generation module is not enough to maintain the operation of the air conditioner. At this time, it is judged whether the power stored in the energy storage module is greater than the second preset threshold and whether the current electricity price is the peak electricity price. If so, the energy storage module and the power grid jointly supply power for the operation of the air conditioner and keep the air conditioner running normally.
储能模块是指可将电能进行储备的模块，储能模块与光伏发电模块、电网进行连接，可以将光伏发电模块产生的电能和电网的电能进行储备，以备需要时进行供电。The energy storage module refers to a module that can store electric energy. The energy storage module is connected to the photovoltaic power generation module and the power grid. The electric energy generated by the photovoltaic power generation module and the electric energy of the power grid can be stored for supplying power when needed.
当储能模块中储备的电能大于第二预设阈值时，表示当前储能模块可以进行正常的供电操作。同时判断当前时刻的电价是否为电价峰值，如果当前时刻为电价的峰值时，其会使得用户的投入费用增加，同时也不利于节能环保。当储能模块中储备的电能大于第二预设阈值同时，当前的时刻的电价为电价峰值时，通过储能模块和电网共同对空调的运行提供电能。可以有效的降低用户的用电成本。When the electric energy stored in the energy storage module is greater than the second preset threshold, it means that the current energy storage module can perform normal power supply operations. At the same time, it is determined whether the current electricity price is the peak electricity price. If the current electricity price is the peak electricity price, it will increase the user's investment costs and is not conducive to energy conservation and environmental protection. When the electric energy stored in the energy storage module is greater than the second preset threshold and the current electricity price is the peak electricity price, the energy storage module and the power grid jointly provide electric energy for the operation of the air conditioner. It can effectively reduce the user's electricity costs.
采用上述技术方案，在光伏发电模块无法提供电能时，判断储能模块中储备的电能是否大于第二预设阈值，当储能模块中的电能大于第二预设阈值时，表示当前的储能模块可以进行供电，同时判断当前的电价是否处于峰值，当电价处于峰值时，通过储能模块和电网的配合供电，可以降低用户用电成本。By adopting the above technical solution, when the photovoltaic power generation module cannot provide electric energy, it is determined whether the electric energy stored in the energy storage module is greater than the second preset threshold value. When the electric energy in the energy storage module is greater than the second preset threshold value, it indicates that the current energy storage module can supply power. At the same time, it is determined whether the current electricity price is at its peak value. When the electricity price is at its peak value, the user's electricity cost can be reduced by the coordinated power supply of the energy storage module and the power grid.
在本申请的一实施例中，判断对空调进行供电的光伏发电模块的发电功率是否大于第一预设阈值，若满足，同时判断对空调进行供电的储能模块的储备电量是否大于第二预设阈值且处于电价峰值，若满足，光伏发电模块和储能模块共同为空调的运行进行供电并保持空调正常运行。In one embodiment of the present application, it is determined whether the power generation power of the photovoltaic power generation module that supplies power to the air conditioner is greater than a first preset threshold value. If so, it is also determined whether the reserve power of the energy storage module that supplies power to the air conditioner is greater than a second preset threshold value and is at the peak of the electricity price. If so, the photovoltaic power generation module and the energy storage module jointly supply power for the operation of the air conditioner and maintain the normal operation of the air conditioner.
具体的，获取所有空调的当前所处的状态，当所有的空调均同步开启时，判断此时的光伏发电模块产生的发电功率是否满足第一预设阈值，当光伏发电模块产生的发电功率满足第一预设阈值时，表示当前光伏发电模块产生的电能足够保证空调稳定运行。当光伏发电模块产生的发电功率不满足第一预设阈值时，表示当前光伏发电模块产生的电能无法满足空调的稳定运行。Specifically, the current status of all air conditioners is obtained. When all air conditioners are turned on synchronously, it is determined whether the power generated by the photovoltaic power generation module at this time meets the first preset threshold. When the power generated by the photovoltaic power generation module meets the first preset threshold, it means that the electric energy generated by the current photovoltaic power generation module is sufficient to ensure the stable operation of the air conditioner. When the power generated by the photovoltaic power generation module does not meet the first preset threshold, it means that the electric energy generated by the current photovoltaic power generation module cannot meet the stable operation of the air conditioner.
其中，当光伏发电模块的发电功率大于第一预设阈值时，此时光伏发电模块产生的电能足以维持空调的运行，此时再判断储能模块中储备的电量是否大于第二预设阈值同时判断当前时刻的电价是否为电价高峰，若满足，光伏发电模块和储能模块共同为空调的运行供电，从而保证空调的正常运行。Among them, when the power generation power of the photovoltaic power generation module is greater than the first preset threshold, the electric energy generated by the photovoltaic power generation module is sufficient to maintain the operation of the air conditioner. At this time, it is judged whether the power stored in the energy storage module is greater than the second preset threshold and whether the current electricity price is the peak electricity price. If so, the photovoltaic power generation module and the energy storage module jointly supply power to the air conditioner, thereby ensuring the normal operation of the air conditioner.
在本申请的一实施例中，判断对空调进行供电的光伏发电模块的发电功率是否大于第一预设阈值，若满足，同时判断对空调进行供电的储能模块的储备电量是否大于第二预设阈值且处于电价峰值，若不满足，光伏发电模块和电网共同为空调的运行进行供电并保持空调正常运行。In one embodiment of the present application, it is determined whether the power generation power of the photovoltaic power generation module that powers the air conditioner is greater than a first preset threshold value. If so, it is also determined whether the reserve power of the energy storage module that powers the air conditioner is greater than a second preset threshold value and is at the peak electricity price. If not, the photovoltaic power generation module and the power grid jointly power the air conditioner and maintain normal operation of the air conditioner.
具体的，判断对空调进行供电的光伏发电模块的发电功率是否大于第一预设阈值，若满足，同时判断对空调进行供电的储能模块中储备的电量是否大于第二预设阈值，且当时所处的电价为峰值电价，若不满足，表示当前储能模块中的储备电量较低或者当前的电价为谷价，市电成本和储能模块的成本相差不大，此时通过光伏发电模块和电网共同对空调进行供电，以保证空调的正常运行。Specifically, it is determined whether the power generation power of the photovoltaic power generation module that supplies power to the air conditioner is greater than a first preset threshold value. If so, it is also determined whether the amount of electricity stored in the energy storage module that supplies power to the air conditioner is greater than a second preset threshold value, and the electricity price at that time is the peak electricity price. If not, it means that the current reserve electricity in the energy storage module is low or the current electricity price is a valley price, and the cost of city electricity and the cost of the energy storage module are not much different. At this time, the air conditioner is powered by both the photovoltaic power generation module and the power grid to ensure the normal operation of the air conditioner.
在本申请的一实施例中，第二预设阈值为：30％。In one embodiment of the present application, the second preset threshold is: 30%.
具体的，第二预设阈值为30％，将第二预设阈值设定在30％可保证储能模块稳定工作的同时，避免储能模块因为电量太低而降低储能模块使用寿命的情况出现。Specifically, the second preset threshold is 30%. Setting the second preset threshold at 30% can ensure the stable operation of the energy storage module while avoiding the situation where the service life of the energy storage module is reduced due to low power.
在本申请的一实施例中，还包括：In one embodiment of the present application, it also includes:
当所有空调均未启动时，判断对空调进行供电的光伏发电模块是否可以发电；若是，判断储能模块的储备电量是否大于第三预设阈值，若是，则将光伏发电模块产生的电能供入电网。When all air conditioners are not started, determine whether the photovoltaic power generation module that powers the air conditioner can generate electricity; if so, determine whether the reserve power of the energy storage module is greater than a third preset threshold value, and if so, supply the electric energy generated by the photovoltaic power generation module to the power grid.
具体的，当所有空调全部未启动时，所有的空调均不会消耗电能，此时判断光伏发电模块能否产生电能，如果能产生电能，此时判断光伏储能模块中的电量是否大于第三预设阈值，当大于第三预设阈值时，表示光伏储能模块中的电量已经充足，此时将光伏发电模块产生的电能输送至电网中。Specifically, when all air conditioners are not started, all air conditioners will not consume electric energy. At this time, it is determined whether the photovoltaic power generation module can generate electric energy. If it can generate electric energy, it is determined whether the amount of electricity in the photovoltaic energy storage module is greater than the third preset threshold. When it is greater than the third preset threshold, it means that the amount of electricity in the photovoltaic energy storage module is sufficient. At this time, the electric energy generated by the photovoltaic power generation module is transmitted to the power grid.
采用上述技术方案，在光伏发电模块能产生电能时，储能模块中的电量充足，则将电能输送至电网中，进一步降低用户的用电成本。By adopting the above technical solution, when the photovoltaic power generation module can generate electricity and the power in the energy storage module is sufficient, the electricity will be transmitted to the power grid, further reducing the user's electricity cost.
在本申请的一实施例中，判断对空调进行供电的光伏发电模块是否可以发电；若是，判断储能模块的储备电量是否大于第三预设阈值，若否，则将光伏发电模块产生的电能供入储能模块。In one embodiment of the present application, it is determined whether the photovoltaic power generation module that powers the air conditioner can generate electricity; if so, it is determined whether the reserve power of the energy storage module is greater than a third preset threshold value, and if not, the electric energy generated by the photovoltaic power generation module is supplied to the energy storage module.
具体的，当所有空调全部未启动时，所有的空调均不会消耗电能，此时判断光伏发电模块能否产生电能，如果能产生电能，此时判断光伏储能模块中的电量是否大于第三预设阈值，当小于第三预设阈值时，表示光伏储能模块中的电量处于待补充状态，此时将光伏发电模块产生的电能输送至储能模块中。Specifically, when all air conditioners are not started, all air conditioners will not consume electrical energy. At this time, it is determined whether the photovoltaic power generation module can generate electrical energy. If it can generate electrical energy, it is determined whether the amount of electricity in the photovoltaic energy storage module is greater than a third preset threshold. When it is less than the third preset threshold, it indicates that the amount of electricity in the photovoltaic energy storage module is in a state of waiting to be replenished. At this time, the electrical energy generated by the photovoltaic power generation module is transmitted to the energy storage module.
采用上述技术方案，在光伏发电模块能产生电能时且储能模块中的电量待补充，将光伏的电能存储在储能模块中，在需要使用时，才从储能模块中取出，进一步降低了用户的使用成本。By adopting the above technical solution, when the photovoltaic power generation module can generate electricity and the power in the energy storage module needs to be replenished, the photovoltaic electricity is stored in the energy storage module and is taken out from the energy storage module when needed, further reducing the user's usage cost.
在本申请的一实施例中，判断对空调进行供电的光伏发电模块是否可以发电；若否，判断储能模块的储备电量是否小于第二预设阈值且处于电价谷值，若是，则从电网取电供入储能模块。In one embodiment of the present application, it is determined whether the photovoltaic power generation module that powers the air conditioner can generate electricity; if not, it is determined whether the reserve power of the energy storage module is less than a second preset threshold and is at a valley value of electricity price; if so, electricity is taken from the power grid and supplied to the energy storage module.
具体的，在光伏发电模块不能发电时，在电价处于谷值时，将市电的电能存储在储能模块中，降低了用户的用电成本。Specifically, when the photovoltaic power generation module cannot generate electricity or when the electricity price is at a valley value, the electric energy of the mains is stored in the energy storage module, thereby reducing the user's electricity cost.
在本申请的一实施例中，判断对空调进行供电的光伏发电模块是否可以发电；若否，判断储能模块的储备电量是否小于第二预设阈值且处于电价谷值，若否，系统处于待机状态。In one embodiment of the present application, it is determined whether the photovoltaic power generation module that powers the air conditioner can generate electricity; if not, it is determined whether the reserve power of the energy storage module is less than a second preset threshold and is at a valley value of the electricity price; if not, the system is in standby mode.
具体的，在光伏发电模块不能发电时，在电价处于峰值时，将系统设定在待机状态，降低了用户的用电成本。Specifically, when the photovoltaic power generation module cannot generate electricity or when the electricity price is at a peak, the system is set in a standby state, thereby reducing the user's electricity cost.
在本申请的一实施例中，所述第三预设阈值为80％。In an embodiment of the present application, the third preset threshold is 80%.
具体的，将第三阈值设定在80％，在保证储能系统电量充足的同时，又能避免储能模块过充，进一步延长了储能模块的使用寿命。Specifically, the third threshold is set at 80%, which ensures that the energy storage system has sufficient power while avoiding overcharging of the energy storage module, thereby further extending the service life of the energy storage module.
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly/indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
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