CN103904768B - Method for controlling power supply and power supply control apparatus - Google Patents
Method for controlling power supply and power supply control apparatus Download PDFInfo
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Abstract
本发明提供了一种供电控制方法和供电控制装置，其中，供电控制方法，包括：获取所有正在运行的电器中每个电器的运行功率；判断所有正在运行的电器的运行功率之和是否大于与第一电源相连接的逆变器的额定输出功率；以及在判定所有正在运行的电器的运行功率之和大于与第一电源相连接的逆变器的额定输出功率时，控制所有正在运行的电器中的至少一个电器由第二电源供电，以使由第一电源供电的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率。通过本发明的技术方案，在所有正在运行的电器的运行功率之和大于与第一电源相连接的逆变器的额定输出功率时，由第一电源和第二电源同时供电，有效的利用第一电源的电能，减少资源浪费。
The present invention provides a power supply control method and a power supply control device, wherein the power supply control method includes: acquiring the operating power of each electrical appliance in all operating electrical appliances; judging whether the sum of the operating power of all electrical appliances in operation is greater than The rated output power of the inverter connected to the first power source; and when it is determined that the sum of the operating power of all the running electrical appliances is greater than the rated output power of the inverter connected to the first power source, control all the running electrical appliances At least one of the electrical appliances is powered by the second power supply, so that the sum of the operating power of the electrical appliances powered by the first power supply is less than or equal to the rated output power of the inverter connected to the first power supply. Through the technical scheme of the present invention, when the sum of the operating power of all the electrical appliances in operation is greater than the rated output power of the inverter connected to the first power supply, the first power supply and the second power supply are simultaneously powered, effectively utilizing the second power supply The electric energy of a power supply reduces the waste of resources.
Description
技术领域technical field
本发明涉及太阳能利用技术领域，具体而言，涉及一种供电控制方法和一种供电控制装置。The present invention relates to the technical field of solar energy utilization, in particular to a power supply control method and a power supply control device.
背景技术Background technique
太阳能作为一种新兴的可再生的能源，具有可再生、无污染、无需运输、资源丰富等优点，太阳能发电系统主要包括：太阳能电池板组、控制器、蓄电池、逆变器、负载等，太阳能发电系统将太阳能转化为电能，并储存在蓄电池中以供负载使用，随着科学技术的进步，太阳能发电系统得到普及使用，使我们进入一个节约能源减少污染的时代。As an emerging renewable energy source, solar energy has the advantages of being renewable, pollution-free, without transportation, and rich in resources. The solar power generation system mainly includes: solar panel group, controller, battery, inverter, load, etc., solar energy The power generation system converts solar energy into electrical energy and stores it in the battery for load use. With the advancement of science and technology, solar power generation systems are widely used, which brings us into an era of energy saving and pollution reduction.
目前，太阳能发电系统将太阳能转化为电能储存在蓄电池中，而蓄电池的额定输出功率有限，在当前使用的电器运行功率小于或等于蓄电池的额定输出功率时，可以使用蓄电池供电，在实际使用过程中，能满足大多数家用电器单独使用时的用电需求，但是当单个大功率家用电器或多个家用电器的运行功率之和大于蓄电池的额定输出功率时，则供电系统会切断蓄电池供电，而将单个大功率家用电器或多个家用电器全部切换为由市电供电。由于实际用电过程中，厨房的用电时间比较集中，在做饭时照明、微波炉、电磁炉、油烟机、烤箱等可能会同时使用，所有电器的运行功率之和必然远远超出蓄电池的额定输出功率，此时供电系统将切断蓄电池供电，所有正在运行的电器切换为由市电供电，则太阳能发电系统储存至蓄电池中的电能得不到有效的利用，造成资源浪费。At present, the solar power generation system converts solar energy into electrical energy and stores it in the battery, and the rated output power of the battery is limited. When the operating power of the currently used electrical appliances is less than or equal to the rated output power of the battery, the battery can be used for power supply. In the actual use process , can meet the power demand of most household appliances when they are used alone, but when the sum of the operating power of a single high-power household appliance or multiple household appliances is greater than the rated output power of the battery, the power supply system will cut off the battery power supply, and will A single high-power household appliance or multiple household appliances are all switched to be powered by the mains. In the actual electricity consumption process, the electricity consumption time in the kitchen is relatively concentrated, and lighting, microwave ovens, induction cookers, range hoods, ovens, etc. may be used at the same time during cooking, and the sum of the operating power of all electrical appliances must far exceed the rated output of the battery. At this time, the power supply system will cut off the power supply of the battery, and all the running electrical appliances will be switched to be powered by the mains, then the electric energy stored in the battery by the solar power generation system will not be effectively utilized, resulting in a waste of resources.
因此，如何有效的利用太阳能发电系统储存至蓄电池中的电能成为目前亟待解决的技术问题。Therefore, how to effectively utilize the electric energy stored in the storage battery by the solar power generation system has become a technical problem to be solved urgently.
发明内容Contents of the invention
本发明旨在至少解决现有技术或相关技术中存在的技术问题之一。The present invention aims to solve at least one of the technical problems existing in the prior art or related art.
为此，本发明的一个目的在于提出了一种能够有效的利用太阳能发电系统储存至蓄电池中的电能的供电控制方法。Therefore, an object of the present invention is to propose a power supply control method that can effectively utilize the electric energy stored in the storage battery by the solar power generation system.
本发明的另一个目的在于提出了一种供电控制装置。Another object of the present invention is to provide a power supply control device.
为实现上述目的，根据本发明的第一方面的实施例，提出了一种供电控制方法，包括：获取所有正在运行的电器中每个电器的运行功率；判断所述所有正在运行的电器的运行功率之和是否大于与第一电源相连接的逆变器的额定输出功率；以及在判定所述所有正在运行的电器的运行功率之和大于所述与第一电源相连接的逆变器的额定输出功率时，控制所述所有正在运行的电器中的至少一个电器由第二电源供电，以使由所述第一电源供电的电器的运行功率之和小于或等于所述与第一电源相连接的逆变器的额定输出功率。In order to achieve the above object, according to the embodiment of the first aspect of the present invention, a power supply control method is proposed, including: obtaining the operating power of each electrical appliance in all the electrical appliances that are running; judging the operating power of all the electrical appliances that are running Whether the sum of the power is greater than the rated output power of the inverter connected to the first power supply; When outputting power, at least one of the electrical appliances in operation is controlled to be powered by the second power supply, so that the sum of the operating power of the electrical appliances powered by the first power supply is less than or equal to the The rated output power of the inverter.
根据本发明的实施例的供电控制方法，通过在所有正在运行的电器的运行功率之和大于与第一电源相连接的逆变器的额定输出功率时，控制所有正在运行的电器中的至少一个电器由第二电源供电，使得由第一电源供电的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率，即控制所有正在运行的电器中运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率的电器由第一电源进行供电，在保证所有正在运行的电器正常工作的同时，有效的利用第一电源的电能，与现有技术中在所有正在运行的电器的运行功率之和大于与第一电源相连接的逆变器的额定输出功率时，所有正在运行的电器全部切换为由第二电源供电相比，提高了第一电源电能的利用率，减少资源浪费。According to the power supply control method of the embodiment of the present invention, when the sum of the operating power of all the running electrical appliances is greater than the rated output power of the inverter connected to the first power supply, at least one of all the running electrical appliances The electrical appliances are powered by the second power supply, so that the sum of the operating power of the electrical appliances powered by the first power supply is less than or equal to the rated output power of the inverter connected to the first power supply, that is, the sum of the operating power of all operating electrical appliances is controlled Electrical appliances that are less than or equal to the rated output power of the inverter connected to the first power supply are powered by the first power supply. While ensuring the normal operation of all running electrical appliances, the electric energy of the first power supply is effectively used, which is different from the existing In the technology, when the sum of the operating power of all running electrical appliances is greater than the rated output power of the inverter connected to the first power supply, all the running electrical appliances are switched to be powered by the second power supply, which improves the first The utilization rate of power supply electric energy reduces the waste of resources.
其中，在第一电源为太阳能发电系统中储存电能的蓄电池，第二电源为市电时，有效的利用太阳能发电系统储存至蓄电池中的电能，减少资源浪费。Wherein, when the first power source is a battery storing electric energy in the solar power generation system and the second power source is commercial power, the electric energy stored in the battery by the solar power generation system is effectively utilized to reduce waste of resources.
另外，根据本发明上述实施例的供电控制方法，还可以具有如下附加的技术特征：In addition, the power supply control method according to the above-mentioned embodiments of the present invention may also have the following additional technical features:
根据本发明的一个实施例，还包括：在判定所述所有正在运行的电器的运行功率之和小于或等于所述与第一电源相连接的逆变器的额定输出功率时，控制所述所有正在运行的电器由所述第一电源供电。According to an embodiment of the present invention, it further includes: when it is determined that the sum of the operating powers of all the running electric appliances is less than or equal to the rated output power of the inverter connected to the first power supply, controlling all Electrical appliances that are running are powered by the first power source.
根据本发明的实施例的供电控制方法，在所有正在运行的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率时，使用第一电源供电即可满足用电的需求，因此所有正在运行的电器均由第一电源供电，也即在所有正在运行的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率时，优先使用第一电源的电能，从而有效的利用第一电源的电能。According to the power supply control method of the embodiment of the present invention, when the sum of the operating power of all running electrical appliances is less than or equal to the rated output power of the inverter connected to the first power supply, the power supply of the first power supply can meet the needs of users. Therefore, all running electrical appliances are powered by the first power supply, that is, when the sum of the operating power of all running electrical appliances is less than or equal to the rated output power of the inverter connected to the first power supply, priority The electric energy of the first power supply is used, thereby effectively utilizing the electric energy of the first power supply.
根据本发明的一个实施例，还包括：当正在运行的电器功率和大于与第一电源相连接的逆变器的额定输出功率时，控制所述所有正在运行的电器中至少一个电器由所述第二电源供电，以使由所述第一电源供电的电器的运行功率之和为小于或等于所述与第一电源相连接的逆变器的额定输出功率的最大值。According to an embodiment of the present invention, it also includes: when the power of the running electrical appliances is greater than the rated output power of the inverter connected to the first power supply, controlling at least one of the running electrical appliances to be controlled by the The second power supply supplies power so that the sum of the operating powers of the electrical appliances powered by the first power supply is less than or equal to the maximum value of the rated output power of the inverter connected to the first power supply.
根据本发明的实施例的供电控制方法，通过控制由第一电源供电的所有正在运行的电器的运行功率之和为小于或等于与第一电源相连接的逆变器的额定输出功率的最大值，即由第一电源供电的正在运行的电器的运行功率之和小于与第一电源相连接的逆变器的额定输出功率且最接近与第一电源相连接的逆变器的额定输出功率，使得第一电源的电能得到最大化的利用，提高了第一电源的电能利用率。According to the power supply control method of the embodiment of the present invention, by controlling the sum of the operating powers of all running electrical appliances powered by the first power supply to be less than or equal to the maximum value of the rated output power of the inverter connected to the first power supply , that is, the sum of the operating powers of the running electrical appliances powered by the first power source is less than the rated output power of the inverter connected to the first power source and is closest to the rated output power of the inverter connected to the first power source, The electric energy of the first power supply is utilized to the maximum extent, and the utilization rate of electric energy of the first power supply is improved.
具体来说，对所有正在运行的电器进行任意组合，以得到多个组合，根据所有正在运行的电器的运行功率计算每个组合中正在运行的电器的运行功率之和，然后以运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率的组合构成一个集合，在该集合中找出运行功率之和最大的组合，则该组合中正在运行的电器由第一电源供电，实现由第一电源供电的正在运行的电器的运行功率之和小于与第一电源相连接的逆变器的额定输出功率且最接近与第一电源相连接的逆变器的额定输出功率。Specifically, all the running electrical appliances are combined arbitrarily to obtain multiple combinations, and the sum of the operating power of the running electrical appliances in each combination is calculated according to the operating power of all the running electrical appliances, and then the sum of the operating power Combinations that are less than or equal to the rated output power of the inverters connected to the first power supply form a set, and the combination with the largest sum of operating power is found in this set, and the running electrical appliances in this combination are powered by the first power supply , realizing that the sum of the operating powers of the running electrical appliances powered by the first power source is less than the rated output power of the inverter connected to the first power source and closest to the rated output power of the inverter connected to the first power source.
当然，本领域技术人员应当理解的是，控制由第一电源供电的正在运行的电器的运行功率之和小于与第一电源相连接的逆变器的额定输出功率且最接近与第一电源相连接的逆变器的额定输出功率的方法还有很多，此处并不用于具体限定。Of course, those skilled in the art should understand that the sum of the operating powers of the running electrical appliances supplied by the first power supply is controlled to be less than the rated output power of the inverter connected to the first power supply and to be closest to the first power supply. There are many methods for the rated output power of the connected inverters, which are not specifically limited here.
根据本发明的一个实施例，所述获取所有正在运行的电器中每个电器的运行功率可以通过检测所述所有正在运行的电器中每个电器的实时工作电流和工作电压并进行计算得到。According to an embodiment of the present invention, the acquisition of the operating power of each electrical appliance in all the electrical appliances in operation may be obtained by detecting and calculating the real-time operating current and operating voltage of each electrical appliance in all the electrical appliances in operation.
根据本发明的实施例的供电控制方法，由于电器在使用过程中功率可能会发生变化，因此通过检测正在运行的电器中每个电器的实时工作电流和工作电压，根据P=UI（U为电器的实时工作电压，I为电器的实时工作电流），计算得到每个正在运行的电器的运行功率，以判断所有正在运行的电器的运行功率之和是否大于与第一电源相连接的逆变器的额定输出功率，为控制所有正在运行的电器的供电方式提供依据，以保证所有正在运行的电器的正常工作，同时有效的利用第一电源的电能。According to the power supply control method of the embodiment of the present invention, since the power of electrical appliances may change during use, by detecting the real-time operating current and operating voltage of each electrical appliance in the running electrical appliances, according to P=UI (U is the electrical appliance The real-time working voltage, I is the real-time working current of the electrical appliance), and the operating power of each running electrical appliance is calculated to determine whether the sum of the operating power of all the running electrical appliances is greater than the inverter connected to the first power supply The rated output power provides a basis for controlling the power supply mode of all running electrical appliances, so as to ensure the normal operation of all running electrical appliances, and at the same time effectively utilize the electric energy of the first power supply.
其中，检测每个电器的实时工作电流和工作电压可以通过连接在电器中的电阻进行检测，并计算出每个电器的实时运行功率，当然，本领域技术人员应当理解的是，获取每个电器的实时运行功率的方法还有很多，此处并不用于具体限定。例如：在另一实施例中还可以通过直接使用功率计获取每个电器的实时运行功率。Among them, detecting the real-time operating current and operating voltage of each electrical appliance can be detected through the resistance connected in the electrical appliance, and the real-time operating power of each electrical appliance can be calculated. Of course, those skilled in the art should understand that obtaining the There are many methods for real-time operating power, which are not specifically limited here. For example: in another embodiment, the real-time operating power of each electrical appliance can also be obtained by directly using a power meter.
根据本发明的一个实施例，还包括：判断所述第一电源的剩余电量是否小于或等于预定阈值；以及在所述第一电源的剩余电量小于或等于预定阈值时，控制所述所有正在运行的电器由所述第二电源供电。According to an embodiment of the present invention, it further includes: judging whether the remaining power of the first power supply is less than or equal to a predetermined threshold; and when the remaining power of the first power supply is less than or equal to a predetermined threshold, controlling all running The electrical appliances are powered by the second power source.
根据本发明的实施例的供电控制方法，由于第一电源储存的电量越多，则第一电源的供电时间越长，在第一电源的剩余电量小于或等于预定阈值时，表明第一电源剩余的电量已经不多，此时，为了防止第一电源过度放电损坏第一电源，可以控制所有正在运行的电器均由第二电源供电，同时也可避免第一电源电量不足时，提供给每个电器的功率不足，影响电器的正常使用。其中，预定阈值可由用户根据与第一电源相连接的逆变器的额定输出功率进行设定。According to the power supply control method of the embodiment of the present invention, since the more electricity stored in the first power supply, the longer the power supply time of the first power supply, when the remaining electricity of the first power supply is less than or equal to the predetermined threshold, it indicates that the first power supply has remaining At this time, in order to prevent the first power supply from being over-discharged and damage the first power supply, it is possible to control all running electrical appliances to be powered by the second power supply. The power of electrical appliances is insufficient, which affects the normal use of electrical appliances. Wherein, the predetermined threshold can be set by the user according to the rated output power of the inverter connected to the first power source.
根据本发明的一个实施例，所述第一电源为蓄电池，所述第二电源为市电。According to an embodiment of the present invention, the first power source is a storage battery, and the second power source is commercial power.
根据本发明的实施例的供电控制方法，第一电源为蓄电池，可以由太阳能发电系统进行充电，以有效的利用太阳能发电储存至蓄电池中的电能，第二电源为市电，在所有正在运行的电器的运行功率之和大于与蓄电池相连接的逆变器的额定输出功率时为至少一个电器供电，以保证所有正在运行的电器的正常工作。According to the power supply control method of the embodiment of the present invention, the first power supply is a storage battery, which can be charged by a solar power generation system to effectively use the electric energy generated by the solar energy and stored in the storage battery. The second power supply is a commercial power supply. When the sum of the operating power of the electrical appliances is greater than the rated output power of the inverter connected to the storage battery, at least one electrical appliance is supplied with power, so as to ensure the normal operation of all the electrical appliances that are running.
根据本发明的第二方面的实施例，提出了一种供电控制装置，包括：获取单元，获取所有正在运行的电器中每个电器的运行功率；判断单元，判断所述所有正在运行的电器的运行功率之和是否大于与第一电源相连接的逆变器的额定输出功率；控制单元，在判定所述所有正在运行的电器的运行功率之和大于与第一电源相连接的逆变器的额定输出功率时，控制所述所有正在运行的电器中的至少一个电器由第二电源供电，以使由所述第一电源供电的电器的运行功率之和小于或等于所述与第一电源相连接的逆变器的额定输出功率。According to the embodiment of the second aspect of the present invention, a power supply control device is proposed, including: an acquisition unit, which acquires the operating power of each electrical appliance in all running electrical appliances; a judging unit, which judges the power of all the running electrical appliances Whether the sum of the operating power is greater than the rated output power of the inverter connected to the first power supply; the control unit determines that the sum of the operating power of all the electrical appliances in operation is greater than that of the inverter connected to the first power supply When the output power is rated, at least one of the electrical appliances in operation is controlled to be powered by the second power supply, so that the sum of the operating power of the electrical appliances powered by the first power supply is less than or equal to that of the first power supply. The rated output power of the connected inverter.
根据本发明的实施例的供电控制装置，通过在所有正在运行的电器的运行功率之和大于与第一电源相连接的逆变器的额定输出功率时，控制所有正在运行的电器中的至少一个电器由第二电源供电，使得由第一电源供电的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率，即控制所有正在运行的电器中运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率的电器由第一电源进行供电，在保证所有正在运行的电器正常工作的同时，有效的利用第一电源的电能，与现有技术中在所有正在运行的电器的运行功率之和大于与第一电源相连接的逆变器的额定输出功率时，所有正在运行的电器全部切换为由第二电源供电相比，提高了第一电源电能的利用率，减少资源浪费。According to the power supply control device of the embodiment of the present invention, when the sum of the operating power of all the running electrical appliances is greater than the rated output power of the inverter connected to the first power supply, at least one of all the running electrical appliances is controlled The electrical appliances are powered by the second power supply, so that the sum of the operating power of the electrical appliances powered by the first power supply is less than or equal to the rated output power of the inverter connected to the first power supply, that is, the sum of the operating power of all operating electrical appliances is controlled Electrical appliances that are less than or equal to the rated output power of the inverter connected to the first power supply are powered by the first power supply. While ensuring the normal operation of all running electrical appliances, the electric energy of the first power supply is effectively used, which is different from the existing In the technology, when the sum of the operating power of all running electrical appliances is greater than the rated output power of the inverter connected to the first power supply, all the running electrical appliances are switched to be powered by the second power supply, which improves the first The utilization rate of power supply electric energy reduces the waste of resources.
其中，在第一电源为太阳能发电系统中储存电能的蓄电池，第二电源为市电时，有效的利用太阳能发电系统储存至蓄电池中的电能，减少资源浪费。Wherein, when the first power source is a battery storing electric energy in the solar power generation system and the second power source is commercial power, the electric energy stored in the battery by the solar power generation system is effectively utilized to reduce waste of resources.
根据本发明的一个实施例，所述控制单元还用于：在判定所述所有正在运行的电器的运行功率之和小于或等于所述与第一电源相连接的逆变器的额定输出功率时，控制所述所有正在运行的电器由所述第一电源供电。According to an embodiment of the present invention, the control unit is further configured to: when it is determined that the sum of the operating power of all the electrical appliances in operation is less than or equal to the rated output power of the inverter connected to the first power supply , controlling all running electrical appliances to be powered by the first power supply.
根据本发明的实施例的供电控制装置，在所有正在运行的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率时，使用第一电源供电即可满足用电的需求，因此所有正在运行的电器均由第一电源供电，也即在所有正在运行的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率时，优先使用第一电源的电能，从而有效的利用第一电源的电能。According to the power supply control device of the embodiment of the present invention, when the sum of the operating powers of all electrical appliances in operation is less than or equal to the rated output power of the inverter connected to the first power supply, the power supply by the first power supply can meet the needs of users. Therefore, all running electrical appliances are powered by the first power supply, that is, when the sum of the operating power of all running electrical appliances is less than or equal to the rated output power of the inverter connected to the first power supply, priority The electric energy of the first power supply is used, thereby effectively utilizing the electric energy of the first power supply.
根据本发明的一个实施例，所述控制单元具体用于，当正在运行的电器功率和大于与第一电源相连接的逆变器的额定输出功率时，控制所述所有正在运行的电器中至少一个电器由所述第二电源供电，以使由所述第一电源供电的电器的运行功率之和为小于或等于所述与第一电源相连接的逆变器的额定输出功率的最大值。According to an embodiment of the present invention, the control unit is specifically configured to control at least One electrical appliance is powered by the second power supply, so that the sum of the operating powers of the electrical appliances powered by the first power supply is less than or equal to the maximum value of the rated output power of the inverter connected to the first power supply.
根据本发明的实施例的供电控制装置，通过控制由第一电源供电的所有正在运行的电器的运行功率之和为小于或等于与第一电源相连接的逆变器的额定输出功率的最大值，即由第一电源供电的正在运行的电器的运行功率之和小于与第一电源相连接的逆变器的额定输出功率且最接近与第一电源相连接的逆变器的额定输出功率，使得第一电源的电能得到最大化的利用，提高了第一电源的电能利用率。According to the power supply control device of the embodiment of the present invention, by controlling the sum of the operating powers of all running electric appliances powered by the first power supply to be less than or equal to the maximum value of the rated output power of the inverter connected to the first power supply , that is, the sum of the operating powers of the running electrical appliances powered by the first power source is less than the rated output power of the inverter connected to the first power source and is closest to the rated output power of the inverter connected to the first power source, The electric energy of the first power supply is utilized to the maximum extent, and the utilization rate of electric energy of the first power supply is improved.
具体来说，对所有正在运行的电器进行任意组合，以得到多个组合，根据所有正在运行的电器的运行功率计算每个组合中正在运行的电器的运行功率之和，然后以运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率的组合构成一个集合，在该集合中找出运行功率之和最大的组合，则该组合中正在运行的电器由第一电源供电，实现由第一电源供电的正在运行的电器的运行功率之和小于与第一电源相连接的逆变器的额定输出功率且最接近与第一电源相连接的逆变器的额定输出功率。Specifically, all the running electrical appliances are combined arbitrarily to obtain multiple combinations, and the sum of the operating power of the running electrical appliances in each combination is calculated according to the operating power of all the running electrical appliances, and then the sum of the operating power Combinations that are less than or equal to the rated output power of the inverters connected to the first power supply form a set, and the combination with the largest sum of operating power is found in this set, and the running electrical appliances in this combination are powered by the first power supply , realizing that the sum of the operating powers of the running electrical appliances powered by the first power source is less than the rated output power of the inverter connected to the first power source and closest to the rated output power of the inverter connected to the first power source.
当然，本领域技术人员应当理解的是，控制由第一电源供电的正在运行的电器的运行功率之和小于与第一电源相连接的逆变器的额定输出功率且最接近与第一电源相连接的逆变器的额定输出功率的方法还有很多，此处并不用于具体限定。Of course, those skilled in the art should understand that the sum of the operating powers of the running electrical appliances supplied by the first power supply is controlled to be less than the rated output power of the inverter connected to the first power supply and to be closest to the first power supply. There are many methods for the rated output power of the connected inverters, which are not specifically limited here.
根据本发明的一个实施例，所述获取单元具体用于，通过检测所述所有正在运行的电器中每个电器的实时工作电流和工作电压并进行计算得到所述所有正在运行的电器中每个电器的运行功率。According to an embodiment of the present invention, the acquisition unit is specifically configured to obtain the real-time operating current and operating voltage of each of the operating electrical appliances by detecting and calculating the The operating power of the appliance.
根据本发明的实施例的供电控制装置，由于电器在使用过程中功率可能会发生变化，因此通过检测正在运行的电器中每个电器的实时工作电流和工作电压，根据P=UI（U为电器的实时工作电压，I为电器的实时工作电流），计算得到每个正在运行的电器的运行功率，以判断所有正在运行的电器的运行功率之和是否大于与第一电源相连接的逆变器的额定输出功率，为控制所有正在运行的电器的供电方式提供依据，以保证所有正在运行的电器的正常工作，同时有效的利用第一电源的电能。According to the power supply control device of the embodiment of the present invention, since the power of electrical appliances may change during use, by detecting the real-time operating current and operating voltage of each electrical appliance in the running electrical appliances, according to P=UI (U is the electrical appliance The real-time working voltage, I is the real-time working current of the electrical appliance), and the operating power of each running electrical appliance is calculated to determine whether the sum of the operating power of all the running electrical appliances is greater than the inverter connected to the first power supply The rated output power provides a basis for controlling the power supply mode of all running electrical appliances, so as to ensure the normal operation of all running electrical appliances, and at the same time effectively utilize the electric energy of the first power supply.
其中，检测每个电器的实时工作电流和工作电压可以通过连接在电器中的电阻进行检测，并计算出每个电器的实时运行功率，当然，本领域技术人员应当理解的是，获取每个电器的实时运行功率的方法还有很多，此处并不用于具体限定。例如：在另一实施例中还可以通过直接使用功率计获取每个电器的实时运行功率。Among them, detecting the real-time operating current and operating voltage of each electrical appliance can be detected through the resistance connected in the electrical appliance, and the real-time operating power of each electrical appliance can be calculated. Of course, those skilled in the art should understand that obtaining the There are many methods for real-time operating power, which are not specifically limited here. For example: in another embodiment, the real-time operating power of each electrical appliance can also be obtained by directly using a power meter.
根据本发明的一个实施例，所述判断单元还用于，判断所述第一电源的剩余电量是否小于或等于预定阈值；以及在所述第一电源的剩余电量小于或等于预定阈值时，所述控制单元控制所述所有正在运行的电器由所述第二电源供电。According to an embodiment of the present invention, the judging unit is further configured to judge whether the remaining power of the first power supply is less than or equal to a predetermined threshold; and when the remaining power of the first power supply is less than or equal to a predetermined threshold, the The control unit controls all running electric appliances to be powered by the second power supply.
根据本发明的实施例的供电控制装置，由于第一电源储存的电量越多，则第一电源的供电时间越长，在第一电源的剩余电量小于或等于预定阈值时，表明第一电源剩余的电量已经不多，此时，为了防止第一电源过度放电损坏第一电源，可以控制所有正在运行的电器均由第二电源供电，同时也可避免第一电源电量不足时，提供给每个电器的功率不足，影响电器的正常使用。其中，预定阈值可由用户根据与第一电源相连接的逆变器的额定输出功率进行设定。According to the power supply control device of the embodiment of the present invention, since the more electricity stored in the first power supply, the longer the power supply time of the first power supply, when the remaining electricity of the first power supply is less than or equal to a predetermined threshold, it indicates that the first power supply has remaining At this time, in order to prevent the first power supply from being over-discharged and damage the first power supply, it is possible to control all running electrical appliances to be powered by the second power supply. The power of electrical appliances is insufficient, which affects the normal use of electrical appliances. Wherein, the predetermined threshold can be set by the user according to the rated output power of the inverter connected to the first power source.
根据本发明的一个实施例，所述第一电源为蓄电池，所述第二电源为市电。According to an embodiment of the present invention, the first power source is a storage battery, and the second power source is commercial power.
根据本发明的实施例的供电控制装置，第一电源为蓄电池，可以由太阳能发电系统进行充电，以有效的利用太阳能发电储存至蓄电池中的电能，第二电源为市电，在所有正在运行的电器的运行功率之和大于与蓄电池相连接的逆变器的额定输出功率时为至少一个电器供电，以保证所有正在运行的电器的正常工作。According to the power supply control device of the embodiment of the present invention, the first power supply is a storage battery, which can be charged by a solar power generation system to effectively use the electric energy generated by the solar energy and stored in the storage battery, and the second power supply is a commercial power supply. When the sum of the operating power of the electrical appliances is greater than the rated output power of the inverter connected to the storage battery, at least one electrical appliance is supplied with power, so as to ensure the normal operation of all the electrical appliances that are running.
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。Additional aspects 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.
附图说明Description of drawings
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:
图1示出了根据本发明的实施例的供电控制方法的示意流程图；FIG. 1 shows a schematic flowchart of a power supply control method according to an embodiment of the present invention;
图2示出了根据本发明的实施例的供电控制装置的结构示意图；Fig. 2 shows a schematic structural diagram of a power supply control device according to an embodiment of the present invention;
图3示出了根据本发明的实施例的太阳能系统的结构示意图。Fig. 3 shows a schematic structural diagram of a solar energy system according to an embodiment of the present invention.
具体实施方式detailed description
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.
图1示出了根据本发明的实施例的供电控制方法的示意流程图。Fig. 1 shows a schematic flowchart of a power supply control method according to an embodiment of the present invention.
如图1所示，根据本发明的实施例的供电控制方法，包括：步骤102，获取所有正在运行的电器中每个电器的运行功率；步骤104，判断所述所有正在运行的电器的运行功率之和是否大于与第一电源相连接的逆变器的额定输出功率；步骤106，在判定所述所有正在运行的电器的运行功率之和大于所述与第一电源相连接的逆变器的额定输出功率时，控制所述所有正在运行的电器中的至少一个电器由第二电源供电，以使由所述第一电源供电的电器的运行功率之和小于或等于所述与第一电源相连接的逆变器的额定输出功率。As shown in Figure 1, the power supply control method according to the embodiment of the present invention includes: step 102, obtaining the operating power of each electrical appliance in all the electrical appliances in operation; step 104, judging the operating power of all the electrical appliances in operation Whether the sum is greater than the rated output power of the inverter connected to the first power supply; step 106, after determining that the sum of the operating power of all the electrical appliances in operation is greater than the inverter connected to the first power supply When the output power is rated, at least one of the electrical appliances in operation is controlled to be powered by the second power supply, so that the sum of the operating power of the electrical appliances powered by the first power supply is less than or equal to that of the first power supply. The rated output power of the connected inverter.
通过在所有正在运行的电器的运行功率之和大于与第一电源相连接的逆变器的额定输出功率时，控制所有正在运行的电器中的至少一个电器由第二电源供电，使得由第一电源供电的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率，即控制所有正在运行的电器中运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率的电器由第一电源进行供电，在保证所有正在运行的电器正常工作的同时，有效的利用第一电源的电能，与现有技术中在所有正在运行的电器的运行功率之和大于与第一电源相连接的逆变器的额定输出功率时，所有正在运行的电器全部切换为由第二电源供电相比，提高了第一电源电能的利用率，减少资源浪费。By controlling at least one of all the running electrical appliances to be powered by the second power supply when the sum of the operating power of all the running electrical appliances is greater than the rated output power of the inverter connected to the first power supply, so that the first The sum of the operating power of the electrical appliances powered by the power supply is less than or equal to the rated output power of the inverter connected to the first power supply, that is, the sum of the operating power of all running electrical appliances is less than or equal to the inverter connected to the first power supply. The electrical appliances with the rated output power of the transformer are powered by the first power supply. While ensuring the normal operation of all the running electrical appliances, the electric energy of the first power supply is effectively used, which is different from the operating power of all the running electrical appliances in the prior art. When the sum is greater than the rated output power of the inverter connected to the first power supply, all running electrical appliances are switched to be powered by the second power supply, which improves the utilization rate of the electric energy of the first power supply and reduces waste of resources.
其中，在第一电源为太阳能发电系统中储存电能的蓄电池，第二电源为市电时，有效的利用太阳能发电系统储存至蓄电池中的电能，减少资源浪费。Wherein, when the first power source is a battery storing electric energy in the solar power generation system and the second power source is commercial power, the electric energy stored in the battery by the solar power generation system is effectively utilized to reduce waste of resources.
另外，根据本发明上述实施例的供电控制方法，还可以具有如下附加的技术特征：In addition, the power supply control method according to the above-mentioned embodiments of the present invention may also have the following additional technical features:
根据本发明的一个实施例，还包括：在判定所述所有正在运行的电器的运行功率之和小于或等于所述与第一电源相连接的逆变器的额定输出功率时，控制所述所有正在运行的电器由所述第一电源供电。According to an embodiment of the present invention, it further includes: when it is determined that the sum of the operating powers of all the running electric appliances is less than or equal to the rated output power of the inverter connected to the first power supply, controlling all Electrical appliances that are running are powered by the first power source.
在所有正在运行的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率时，使用第一电源供电即可满足用电的需求，因此所有正在运行的电器均由第一电源供电，也即在所有正在运行的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率时，优先使用第一电源的电能，从而有效的利用第一电源的电能。When the sum of the operating power of all the electrical appliances in operation is less than or equal to the rated output power of the inverter connected to the first power supply, the demand for power can be met by using the first power supply, so all the electrical appliances in operation Powered by the first power supply, that is, when the sum of the operating power of all running electrical appliances is less than or equal to the rated output power of the inverter connected to the first power supply, the electric energy of the first power supply is preferentially used, so as to effectively utilize The electrical energy of the first power source.
根据本发明的一个实施例，还包括：当正在运行的电器功率和大于与第一电源相连接的逆变器的额定输出功率时，控制所述所有正在运行的电器中至少一个电器由所述第二电源供电，以使由所述第一电源供电的电器的运行功率之和为小于或等于所述与第一电源相连接的逆变器的额定输出功率的最大值。According to an embodiment of the present invention, it also includes: when the power of the running electrical appliances is greater than the rated output power of the inverter connected to the first power supply, controlling at least one of the running electrical appliances to be controlled by the The second power supply supplies power so that the sum of the operating powers of the electrical appliances powered by the first power supply is less than or equal to the maximum value of the rated output power of the inverter connected to the first power supply.
通过控制由第一电源供电的所有正在运行的电器的运行功率之和为小于或等于与第一电源相连接的逆变器的额定输出功率的最大值，即由第一电源供电的正在运行的电器的运行功率之和小于与第一电源相连接的逆变器的额定输出功率且最接近与第一电源相连接的逆变器的额定输出功率，使得第一电源的电能得到最大化的利用，提高了第一电源的电能利用率。By controlling the sum of the operating power of all running appliances powered by the first power supply to be less than or equal to the maximum value of the rated output power of the inverter connected to the first power supply, that is, the running electric appliances powered by the first power supply The sum of the operating power of the electrical appliances is less than the rated output power of the inverter connected to the first power supply and is closest to the rated output power of the inverter connected to the first power supply, so that the electric energy of the first power supply can be maximized. , improving the power utilization rate of the first power supply.
具体来说，对所有正在运行的电器进行任意组合，以得到多个组合，根据所有正在运行的电器的运行功率计算每个组合中正在运行的电器的运行功率之和，然后以运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率的组合构成一个集合，在该集合中找出运行功率之和最大的组合，则该组合中正在运行的电器由第一电源供电，实现由第一电源供电的正在运行的电器的运行功率之和小于与第一电源相连接的逆变器的额定输出功率且最接近与第一电源相连接的逆变器的额定输出功率。Specifically, all the running electrical appliances are combined arbitrarily to obtain multiple combinations, and the sum of the operating power of the running electrical appliances in each combination is calculated according to the operating power of all the running electrical appliances, and then the sum of the operating power Combinations that are less than or equal to the rated output power of the inverters connected to the first power supply form a set, and the combination with the largest sum of operating power is found in this set, and the running electrical appliances in this combination are powered by the first power supply , realizing that the sum of the operating powers of the running electrical appliances powered by the first power source is less than the rated output power of the inverter connected to the first power source and closest to the rated output power of the inverter connected to the first power source.
当然，本领域技术人员应当理解的是，控制由第一电源供电的正在运行的电器的运行功率之和小于与第一电源相连接的逆变器的额定输出功率且最接近与第一电源相连接的逆变器的额定输出功率的方法还有很多，此处并不用于具体限定。Of course, those skilled in the art should understand that the sum of the operating powers of the running electrical appliances supplied by the first power supply is controlled to be less than the rated output power of the inverter connected to the first power supply and to be closest to the first power supply. There are many methods for the rated output power of the connected inverters, which are not specifically limited here.
作为一种较为具体的实施方式，例如：与第一电源相连接的逆变器的额定功率记为P0，第一电源为多个正在运行的电器供电，其中，多个正在运行的电器的运行功率记为P1、P2…Pi，则满足P1+P2+…+Pi≤P0，如果新启动一台电器，其功率记为Pj，此时如果P1+P2+…+Pi+Pj≤P0则所有电器均由第一电源供电；如果P1+P2+…+Pi+Pj>P0，则控制所有正在运行的电器中运行功率之和小于P0且最接近P0的电器由第一电源供电，即在P1、P2…Pi、Pj中找出运行功率之和小于P0且最接近P0的组合，例如，Pi+Pj为运行功率之和小于P0且最接近P0的组合，则运行功率Pi和Pj的电器由第一电源供电，其他的电器由第二电源供电，保证与第一电源相连接的逆变器输出的功率最大，有效的利用第一电源的电能。As a more specific implementation, for example: the rated power of the inverter connected to the first power supply is denoted as P 0 , and the first power supply supplies power to a plurality of running electrical appliances, wherein the multiple running electrical appliances The operating power is recorded as P 1 , P 2 ...P i , then P 1 +P 2 +…+P i ≤ P 0 is satisfied. If a new electrical appliance is started, its power is recorded as P j . At this time, if P 1 +P 2 +...+P i +P j ≤P 0 , all electrical appliances are powered by the first power supply; if P 1 +P 2 +...+P i +P j >P 0 , then control the operating power of all running electrical appliances The electrical appliances whose sum is less than P 0 and which is closest to P 0 are powered by the first power supply, that is, find the combination whose operating power sum is less than P 0 and which is closest to P 0 among P 1 , P 2 ... P i , P j , for example , P i + P j is the combination whose sum of operating power is less than P 0 and is closest to P 0 , then the electrical appliances with operating power P i and P j are powered by the first power supply, and other electrical appliances are powered by the second power supply, which guarantees the same The inverter connected to a power source has the largest output power, and effectively utilizes the electric energy of the first power source.
根据本发明的一个实施例，所述获取所有正在运行的电器中每个电器的运行功率可以通过检测所述所有正在运行的电器中每个电器的实时工作电流和工作电压并进行计算得到。According to an embodiment of the present invention, the acquisition of the operating power of each electrical appliance in all the electrical appliances in operation may be obtained by detecting and calculating the real-time operating current and operating voltage of each electrical appliance in all the electrical appliances in operation.
由于电器在使用过程中功率可能会发生变化，因此通过检测正在运行的电器中每个电器的实时工作电流和工作电压，根据P=UI（U为电器的实时工作电压，I为电器的实时工作电流），计算得到每个正在运行的电器的运行功率，以判断所有正在运行的电器的运行功率之和是否大于与第一电源相连接的逆变器的额定输出功率，为控制所有正在运行的电器的供电方式提供依据，以保证所有正在运行的电器的正常工作，同时有效的利用第一电源的电能。Since the power of electrical appliances may change during use, by detecting the real-time working current and working voltage of each electrical appliance in the running electrical appliances, according to P=UI (U is the real-time working voltage of the electrical appliance, I is the real-time working voltage of the electrical appliance current), calculate the operating power of each running electrical appliance, to determine whether the sum of the operating power of all running electrical appliances is greater than the rated output power of the inverter connected to the first power supply, in order to control all running electrical appliances The power supply method of electrical appliances provides a basis to ensure the normal operation of all electrical appliances that are running, and at the same time effectively utilize the electric energy of the first power supply.
其中，检测每个电器的实时工作电流和工作电压可以通过连接在电器中的电阻进行检测，并计算出每个电器的实时运行功率，当然，本领域技术人员应当理解的是，获取每个电器的实时运行功率的方法还有很多，此处并不用于具体限定。例如：在另一实施例中还可以通过直接使用功率计获取每个电器的实时运行功率。Among them, detecting the real-time operating current and operating voltage of each electrical appliance can be detected through the resistance connected in the electrical appliance, and the real-time operating power of each electrical appliance can be calculated. Of course, those skilled in the art should understand that obtaining the There are many methods for real-time operating power, which are not specifically limited here. For example: in another embodiment, the real-time operating power of each electrical appliance can also be obtained by directly using a power meter.
根据本发明的一个实施例，还包括：判断所述第一电源的剩余电量是否小于或等于预定阈值；以及在所述第一电源的剩余电量小于或等于预定阈值时，控制所述所有正在运行的电器由所述第二电源供电。According to an embodiment of the present invention, it further includes: judging whether the remaining power of the first power supply is less than or equal to a predetermined threshold; and when the remaining power of the first power supply is less than or equal to a predetermined threshold, controlling all running The electrical appliances are powered by the second power source.
由于第一电源储存的电量越多，则第一电源的供电时间越长，在第一电源的剩余电量小于或等于预定阈值时，表明第一电源剩余的电量已经不多，此时，为了防止第一电源过度放电损坏第一电源，可以控制所有正在运行的电器均由第二电源供电，同时也可避免第一电源电量不足时，提供给每个电器的功率不足，影响电器的正常使用。其中，预定阈值可由用户根据与第一电源相连接的逆变器的额定输出功率进行设定。Since the more electricity stored in the first power supply, the longer the power supply time of the first power supply, when the remaining electricity of the first power supply is less than or equal to the predetermined threshold, it indicates that the remaining electricity of the first power supply is not much. At this time, in order to prevent Excessive discharge of the first power supply damages the first power supply, and can control all running electrical appliances to be powered by the second power supply. At the same time, it can also avoid that when the first power supply is insufficient, the power provided to each electrical appliance is insufficient, affecting the normal use of the electrical appliances. Wherein, the predetermined threshold can be set by the user according to the rated output power of the inverter connected to the first power source.
根据本发明的一个实施例，所述第一电源为蓄电池，所述第二电源为市电。According to an embodiment of the present invention, the first power source is a storage battery, and the second power source is commercial power.
第一电源为蓄电池，可以由太阳能发电系统进行充电，以有效的利用太阳能发电储存至蓄电池中的电能，第二电源为市电，在所有正在运行的电器的运行功率之和大于与蓄电池相连接的逆变器的额定输出功率时为至少一个电器供电，以保证所有正在运行的电器的正常工作。The first power source is a storage battery, which can be charged by a solar power generation system to effectively use solar power to generate electricity stored in the storage battery. The second power source is commercial power. When the sum of the operating power of all running electrical appliances is greater than that connected to the storage battery The rated output power of the inverter can supply power to at least one electrical appliance to ensure the normal operation of all running electrical appliances.
图2示出了根据本发明的实施例的供电控制装置的结构示意图。Fig. 2 shows a schematic structural diagram of a power supply control device according to an embodiment of the present invention.
如图2所示，根据本发明的实施例的供电控制装置200，包括：获取单元202，获取所有正在运行的电器中每个电器的运行功率；判断单元204，判断所述所有正在运行的电器的运行功率之和是否大于与第一电源相连接的逆变器的额定输出功率；控制单元206，在判定所述所有正在运行的电器的运行功率之和大于与第一电源相连接的逆变器的额定输出功率时，控制所述所有正在运行的电器中的至少一个电器由第二电源供电，以使由所述第一电源供电的电器的运行功率之和小于或等于所述与第一电源相连接的逆变器的额定输出功率。As shown in FIG. 2, the power supply control device 200 according to the embodiment of the present invention includes: an acquisition unit 202, which acquires the operating power of each electrical appliance in all running electrical appliances; a judging unit 204, which judges the Whether the sum of the operating powers of the electrical appliances is greater than the rated output power of the inverter connected to the first power supply; the control unit 206, when determining that the sum of the operating powers of all the electrical appliances in operation is greater than the inverter connected to the first power supply When the rated output power of the electrical appliance is rated, at least one of the electrical appliances in operation is controlled to be powered by the second power supply, so that the sum of the operating power of the electrical appliances powered by the first power supply is less than or equal to the sum of the first power supply and the first electrical appliance. The rated output power of the inverter connected to the power source.
通过在所有正在运行的电器的运行功率之和大于与第一电源相连接的逆变器的额定输出功率时，控制所有正在运行的电器中的至少一个电器由第二电源供电，使得由第一电源供电的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率，即控制所有正在运行的电器中运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率的电器由第一电源进行供电，在保证所有正在运行的电器正常工作的同时，有效的利用第一电源的电能，与现有技术中在所有正在运行的电器的运行功率之和大于与第一电源相连接的逆变器的额定输出功率时，所有正在运行的电器全部切换为由第二电源供电相比，提高了第一电源电能的利用率，减少资源浪费。By controlling at least one of all the running electrical appliances to be powered by the second power supply when the sum of the operating power of all the running electrical appliances is greater than the rated output power of the inverter connected to the first power supply, so that the first The sum of the operating power of the electrical appliances powered by the power supply is less than or equal to the rated output power of the inverter connected to the first power supply, that is, the sum of the operating power of all running electrical appliances is less than or equal to the inverter connected to the first power supply. The electrical appliances with the rated output power of the transformer are powered by the first power supply. While ensuring the normal operation of all the running electrical appliances, the electric energy of the first power supply is effectively used, which is different from the operating power of all the running electrical appliances in the prior art. When the sum is greater than the rated output power of the inverter connected to the first power supply, all running electrical appliances are switched to be powered by the second power supply, which improves the utilization rate of the electric energy of the first power supply and reduces waste of resources.
其中，在第一电源为太阳能发电系统中储存电能的蓄电池，第二电源为市电时，有效的利用太阳能发电系统储存至蓄电池中的电能，减少资源浪费。Wherein, when the first power source is a battery storing electric energy in the solar power generation system and the second power source is commercial power, the electric energy stored in the battery by the solar power generation system is effectively utilized to reduce waste of resources.
根据本发明的一个实施例，所述控制单元206还用于：在判定所述所有正在运行的电器的运行功率之和小于或等于所述与第一电源相连接的逆变器的额定输出功率时，控制所述所有正在运行的电器由所述第一电源供电。According to an embodiment of the present invention, the control unit 206 is further configured to: determine that the sum of the operating power of all the running electrical appliances is less than or equal to the rated output power of the inverter connected to the first power supply , control all running electrical appliances to be powered by the first power supply.
在所有正在运行的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率时，使用第一电源供电即可满足用电的需求，因此所有正在运行的电器均由第一电源供电，也即在所有正在运行的电器的运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率时，优先使用第一电源的电能，从而有效的利用第一电源的电能。When the sum of the operating power of all the electrical appliances in operation is less than or equal to the rated output power of the inverter connected to the first power supply, the demand for power can be met by using the first power supply, so all the electrical appliances in operation Powered by the first power supply, that is, when the sum of the operating power of all running electrical appliances is less than or equal to the rated output power of the inverter connected to the first power supply, the electric energy of the first power supply is preferentially used, so as to effectively utilize The electrical energy of the first power source.
根据本发明的一个实施例，所述控制单元206具体用于，当正在运行的电器功率和大于与第一电源相连接的逆变器的额定输出功率时，控制所述所有正在运行的电器中至少一个电器由所述第二电源供电，以使由所述第一电源供电的电器的运行功率之和为小于或等于所述与第一电源相连接的逆变器的额定输出功率的最大值。According to an embodiment of the present invention, the control unit 206 is specifically configured to, when the power of the running electrical appliances exceeds the rated output power of the inverter connected to the first power supply, control At least one electrical appliance is powered by the second power supply, so that the sum of the operating power of the electrical appliances powered by the first power supply is less than or equal to the maximum value of the rated output power of the inverter connected to the first power supply .
通过控制由第一电源供电的所有正在运行的电器的运行功率之和为小于或等于与第一电源相连接的逆变器的额定输出功率的最大值，即由第一电源供电的正在运行的电器的运行功率之和小于与第一电源相连接的逆变器的额定输出功率且最接近与第一电源相连接的逆变器的额定输出功率，使得第一电源的电能得到最大化的利用，提高了第一电源的电能利用率。By controlling the sum of the operating power of all running appliances powered by the first power supply to be less than or equal to the maximum value of the rated output power of the inverter connected to the first power supply, that is, the running electric appliances powered by the first power supply The sum of the operating power of the electrical appliances is less than the rated output power of the inverter connected to the first power supply and is closest to the rated output power of the inverter connected to the first power supply, so that the electric energy of the first power supply can be maximized. , improving the power utilization rate of the first power supply.
具体来说，对所有正在运行的电器进行任意组合，以得到多个组合，根据所有正在运行的电器的运行功率计算每个组合中正在运行的电器的运行功率之和，然后以运行功率之和小于或等于与第一电源相连接的逆变器的额定输出功率的组合构成一个集合，在该集合中找出运行功率之和最大的组合，则该组合中正在运行的电器由第一电源供电，实现由第一电源供电的正在运行的电器的运行功率之和小于与第一电源相连接的逆变器的额定输出功率且最接近与第一电源相连接的逆变器的额定输出功率。Specifically, all the running electrical appliances are combined arbitrarily to obtain multiple combinations, and the sum of the operating power of the running electrical appliances in each combination is calculated according to the operating power of all the running electrical appliances, and then the sum of the operating power Combinations that are less than or equal to the rated output power of the inverters connected to the first power supply form a set, and the combination with the largest sum of operating power is found in this set, and the running electrical appliances in this combination are powered by the first power supply , realizing that the sum of the operating powers of the running electrical appliances powered by the first power source is less than the rated output power of the inverter connected to the first power source and closest to the rated output power of the inverter connected to the first power source.
当然，本领域技术人员应当理解的是，控制由第一电源供电的正在运行的电器的运行功率之和小于与第一电源相连接的逆变器的额定输出功率且最接近与第一电源相连接的逆变器的额定输出功率的方法还有很多，此处并不用于具体限定。Of course, those skilled in the art should understand that the sum of the operating powers of the running electrical appliances supplied by the first power supply is controlled to be less than the rated output power of the inverter connected to the first power supply and to be closest to the first power supply. There are many methods for the rated output power of the connected inverters, which are not specifically limited here.
根据本发明的一个实施例，所述获取单元202具体用于，通过检测所述所有正在运行的电器中每个电器的实时工作电流和工作电压并进行计算得到所述所有正在运行的电器中每个电器的运行功率。According to an embodiment of the present invention, the acquisition unit 202 is specifically configured to obtain the real-time operating current and operating voltage of each electrical appliance in all the electrical appliances in operation by detecting and calculating The operating power of an appliance.
由于电器在使用过程中功率可能会发生变化，因此通过检测正在运行的电器中每个电器的实时工作电流和工作电压，根据P=UI（U为电器的实时工作电压，I为电器的实时工作电流），计算得到每个正在运行的电器的运行功率，以判断所有正在运行的电器的运行功率之和是否大于与第一电源相连接的逆变器的额定输出功率，为控制所有正在运行的电器的供电方式提供依据，以保证所有正在运行的电器的正常工作，同时有效的利用第一电源的电能。Since the power of electrical appliances may change during use, by detecting the real-time working current and working voltage of each electrical appliance in the running electrical appliances, according to P=UI (U is the real-time working voltage of the electrical appliance, I is the real-time working voltage of the electrical appliance current), calculate the operating power of each running electrical appliance, to determine whether the sum of the operating power of all running electrical appliances is greater than the rated output power of the inverter connected to the first power supply, in order to control all running electrical appliances The power supply method of electrical appliances provides a basis to ensure the normal operation of all electrical appliances that are running, and at the same time effectively utilize the electric energy of the first power supply.
其中，检测每个电器的实时工作电流和工作电压可以通过连接在电器中的电阻进行检测，并计算出每个电器的实时运行功率，当然，本领域技术人员应当理解的是，获取每个电器的实时运行功率的方法还有很多，此处并不用于具体限定。例如：在另一实施例中还可以通过直接使用功率计获取每个电器的实时运行功率。Among them, detecting the real-time operating current and operating voltage of each electrical appliance can be detected through the resistance connected in the electrical appliance, and the real-time operating power of each electrical appliance can be calculated. Of course, those skilled in the art should understand that obtaining the There are many methods for real-time operating power, which are not specifically limited here. For example: in another embodiment, the real-time operating power of each electrical appliance can also be obtained by directly using a power meter.
根据本发明的一个实施例，所述判断单元204还用于，判断所述第一电源的剩余电量是否小于或等于预定阈值；以及在所述第一电源的剩余电量小于或等于预定阈值时，所述控制单元206控制所述所有正在运行的电器由所述第二电源供电。According to an embodiment of the present invention, the judging unit 204 is further configured to judge whether the remaining power of the first power supply is less than or equal to a predetermined threshold; and when the remaining power of the first power supply is less than or equal to a predetermined threshold, The control unit 206 controls all running electrical appliances to be powered by the second power supply.
由于第一电源储存的电量越多，则第一电源的供电时间越长，在第一电源的剩余电量小于或等于预定阈值时，表明第一电源剩余的电量已经不多，此时，为了防止第一电源过度放电损坏第一电源，可以控制所有正在运行的电器均由第二电源供电，同时也可避免第一电源电量不足时，提供给每个电器的功率不足，影响电器的正常使用。其中，预定阈值可由用户根据与第一电源相连接的逆变器的额定输出功率进行设定。Since the more electricity stored in the first power supply, the longer the power supply time of the first power supply, when the remaining electricity of the first power supply is less than or equal to the predetermined threshold, it indicates that the remaining electricity of the first power supply is not much. At this time, in order to prevent Excessive discharge of the first power supply damages the first power supply, and can control all running electrical appliances to be powered by the second power supply. At the same time, it can also avoid that when the first power supply is insufficient, the power provided to each electrical appliance is insufficient, affecting the normal use of the electrical appliances. Wherein, the predetermined threshold can be set by the user according to the rated output power of the inverter connected to the first power source.
根据本发明的一个实施例，所述第一电源为蓄电池，所述第二电源为市电。According to an embodiment of the present invention, the first power source is a storage battery, and the second power source is commercial power.
第一电源为蓄电池，可以由太阳能发电系统进行充电，以有效的利用太阳能发电储存至蓄电池中的电能，第二电源为市电，在所有正在运行的电器的运行功率之和大于与蓄电池相连接的逆变器的额定输出功率时为至少一个电器供电，以保证所有正在运行的电器的正常工作。The first power source is a storage battery, which can be charged by a solar power generation system to effectively use solar power to generate electricity stored in the storage battery. The second power source is commercial power. When the sum of the operating power of all running electrical appliances is greater than that connected to the storage battery The rated output power of the inverter can supply power to at least one electrical appliance to ensure the normal operation of all running electrical appliances.
作为一种较为具体的实施例，图3示出了根据本发明的实施例的太阳能系统的结构示意图。As a more specific embodiment, Fig. 3 shows a schematic structural diagram of a solar energy system according to an embodiment of the present invention.
如图3所示，根据本发明的实施例的太阳能系统300，包括：As shown in FIG. 3, a solar energy system 300 according to an embodiment of the present invention includes:
太阳能电池板组302，由单一的太阳能电池经串联、并联组成太阳能电池板302，用于接收太阳能，并将太阳能转化为电能。The solar panel group 302 consists of single solar cells connected in series and in parallel to form a solar panel 302 for receiving solar energy and converting the solar energy into electrical energy.
控制器304，用于在充电时使太阳能发电系统始终以最大功率（或接近最大功率）进行充电，同时可以检测蓄电池306的剩余电量，当电量不足、蓄电池故障，输出电路极性接反时切断蓄电池供电电路，避免影响电器的正常工作。The controller 304 is used to make the solar power generation system always charge at the maximum power (or close to the maximum power) during charging, and at the same time, it can detect the remaining power of the battery 306, and cut off when the power is insufficient, the battery is faulty, and the polarity of the output circuit is reversed. The battery power supply circuit avoids affecting the normal operation of electrical appliances.
蓄电池306（对应于第一电源），用于储存太阳能电池板组302转化的电能，并为电器供电。The storage battery 306 (corresponding to the first power supply) is used to store the electric energy converted by the solar panel group 302 and provide power for electrical appliances.
逆变器308，逆变器308将蓄电池306提供的直流电压经逆变转换后转换为与市电一致的交流220V电压，满足家用电器的正常使用。Inverter 308. The inverter 308 converts the DC voltage provided by the battery 306 into an AC 220V voltage consistent with the mains power, which meets the normal use of household appliances.
转换器/智能分配器310，用于通过与多个厨房电器（包含厨房电器1314A、厨房电器2314B…厨房电器n314C）相连接的采样电阻（对应于图2中的获取单元，与厨房电器1314A相连接的采样电阻为312A，与厨房电器2314B相连接的采样电阻为312B，与厨房电器n314C相连接的采样电阻为312C）获取每个厨房电器的实时工作电压和实时工作电流，并根据P=UI计算得到每个电器的运行功率，在所有正在运行的电器的运行功率之和大于与蓄电池306相连接的逆变器308的额定输出功率时，控制所有正在运行的电器中的至少一个由市电316（对应于第二电源）供电，以使由蓄电池306供电的电器的运行功率之和小于或等于与蓄电池306相连接的逆变器308的额定输出功率。The converter/intelligent distributor 310 is used to connect multiple kitchen appliances (including kitchen appliance 1314A, kitchen appliance 2314B...kitchen appliance n314C) through sampling resistors (corresponding to the acquisition unit in Figure 2, which is connected to kitchen appliance 1314A) The connected sampling resistor is 312A, the sampling resistor connected to the kitchen appliance 2314B is 312B, and the sampling resistor connected to the kitchen appliance n314C is 312C) to obtain the real-time working voltage and real-time working current of each kitchen appliance, and according to P=UI Calculate the operating power of each electrical appliance, and when the sum of the operating power of all the electrical appliances in operation is greater than the rated output power of the inverter 308 connected to the storage battery 306, at least one of the electrical appliances in operation is controlled to be supplied by the mains 316 (corresponding to the second power supply) so that the sum of the operating power of the electrical appliances powered by the storage battery 306 is less than or equal to the rated output power of the inverter 308 connected to the storage battery 306 .
另一方面，当控制器304检测到蓄电池306的电量小于或等于预定阈值时，为了防止蓄电池306过度放电，则转换器/智能分配器310控制所有正在运行的电器均由市电316供电。On the other hand, when the controller 304 detects that the power of the battery 306 is less than or equal to a predetermined threshold, in order to prevent the battery 306 from being over-discharged, the converter/smart distributor 310 controls all running appliances to be powered by the mains 316 .
以上结合附图详细说明了本发明的技术方案，通过本发明的技术方案，在所有正在运行的电器的运行功率之和大于蓄电池的额定输出功率时，控制所有正在运行的电器中的至少一个电器由市电供电，使得由蓄电池供电的电器的运行功率之和小于或等于蓄电池的额定输出功率，有效的利用太阳能发电系统储存至蓄电池中的电能，减少资源浪费。The technical scheme of the present invention has been described in detail above in conjunction with the accompanying drawings. Through the technical scheme of the present invention, when the sum of the operating power of all electrical appliances in operation is greater than the rated output power of the battery, at least one electrical appliance in all electrical appliances in operation is controlled. Powered by the mains, the sum of the operating power of the electrical appliances powered by the battery is less than or equal to the rated output power of the battery, effectively utilizing the electric energy stored in the battery by the solar power generation system, and reducing waste of resources.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
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| CN110661327A (en) * | 2018-06-29 | 2020-01-07 | 浙江欧琳生活健康科技有限公司 | Solar power supply method and system applied to kitchen electrical appliance |
| CN108923400A (en) * | 2018-07-03 | 2018-11-30 | 国网山东省电力公司惠民县供电公司 | A kind of overload protection method and system of power line carrier |
| CN111425971A (en) * | 2020-03-31 | 2020-07-17 | 广东美的制冷设备有限公司 | Method for operating a mobile air conditioner, mobile air conditioner and storage medium |
| CN112416048B (en) * | 2020-07-02 | 2021-10-15 | 深圳市正浩创新科技股份有限公司 | Power regulation method and system based on alternating current output power supply equipment |
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