Driving control method, device and equipment of photovoltaic motor and storage medium
A photovoltaic and photovoltaic array technology, which is applied to the drive control device, equipment and computer-readable storage medium of photovoltaic motors, and the field of drive control of photovoltaic motors, can solve the problems of poor stability of photovoltaic motors, reduced DC bus voltage, and reduced work efficiency, etc. , to reduce the probability of system crash, improve recovery speed, and improve work efficiency.
Pending Publication Date: 2022-04-29
SHENZHEN INVT ELECTRIC
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Problems solved by technology
[0002] At present, there are many kinds of photovoltaic motors on the market. Photovoltaic motors usually include photovoltaic arrays, frequency converters, controllers, and motors. The photovoltaic arrays can supply power to photovoltaic motors through frequency converters, and the controller controls the output power of frequency converters by adjusting the frequency of the frequency converters. , so that the output power of the inverter is balanced with the output power of the photovoltaic array, so that the system can work stably. This situation is likely to lead to a significant drop in the DC bus voltage, resulting in a system crash, poor stability of the photovoltaic motor, and reduced work efficiency
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[0058] The core of the present invention is to provide a driving control method for photovoltaic motors, which not only can quickly calculate the given value of output power, but also the given value of output power is more accurate, can increase the recovery speed of the bus voltage, thereby reducing the risk of system collapse probability, which improves the stability of the photovoltaic motor and improves the work efficiency; another core of the present invention is to provide a photovoltaic motor drive control device, equipment and computer-readable storage medium, which can not only quickly calculate the given value of output power , and the given value of the output power is relatively accurate, which can increase the recovery speed of the bus voltage, thereby reducing the probability of system collapse, improving the stability of the photovoltaic motor, and improving work efficiency.
[0059] In order to make the purpose, technical solutions and advantages of the embodim...
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The invention discloses a driving control method, device and equipment of a photovoltaic motor and a computer readable storage medium, and aims to quickly increase the bus voltage in order to solve the problem that when the output power of a photovoltaic array is greatly reduced due to illumination weakening and the like, the direct current bus voltage is possibly greatly reduced to cause system collapse. According to the application, when the difference value obtained by subtracting the current output power of the photovoltaic array from the current output power of the frequency converter of the photovoltaic motor is large (namely, when the output power of the photovoltaic array is greatly reduced), the output power of the photovoltaic array after the preset proportion is reduced is directly used as the output power given value of the frequency converter, so that the output power given value can be quickly calculated; moreover, the given value of the output power is accurate, and the recovery speed of the bus voltage can be improved, thereby reducing the probability of system breakdown, improving the stability of the photovoltaic motor, and improving the working efficiency.
Description
technical field [0001] The present invention relates to the field of photovoltaic motors, in particular to a driving control method for photovoltaic motors, and also relates to a driving control device, equipment and computer-readable storage medium for photovoltaic motors. Background technique [0002] At present, there are many kinds of photovoltaic motors on the market. Photovoltaic motors usually include photovoltaic arrays, frequency converters, controllers, and motors. The photovoltaic arrays can supply power to photovoltaic motors through frequency converters, and the controller controls the output power of frequency converters by adjusting the frequency of the frequency converters. , so that the output power of the inverter is balanced with the output power of the photovoltaic array, so that the system can work stably. This situation is likely to lead to a significant drop in the DC bus voltage, resulting in system collapse, poor stability of the photovoltaic motor, ...
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IPC IPC(8): H02P27/04H02J3/38
CPCH02P27/04H02J3/381H02J2300/26Y02E10/56
Inventor 杨子龙韩振松刘建成储明
Owner SHENZHEN INVT ELECTRIC