1 Development of inverter power supply digital control technology
1.1 High-performance inverter power supply and digital control technology
With the development of network technology, higher requirements have been put forward for the network functions of inverter power supplies. High-performance inverter power supplies must meet: high input power factor, low output impedance; fast transient response, high steady-state accuracy; stable High performance, high efficiency, high reliability; low electromagnetic interference; complete network functions. To realize these functions, digital control technology is indispensable.
1.2 Traditional inverter power control technology
1.2.1 Disadvantages of traditional inverter power control technology
Traditional inverter power supplies are mostly analog control or a control system that combines analog and digital. Although analog control technology is very mature, it has many inherent shortcomings: the control circuit has many components, is complex, and occupies a large volume; it is not flexible enough. Once the hardware circuit is designed, the control strategy cannot be changed; Debugging is inconvenient. Due to the differences in the characteristics of the devices used, the power supply consistency is poor, and the drift of the operating point of the analog device leads to the drift of system parameters. It is difficult to achieve parallel connection of inverter power supplies in analog mode, so digital control of inverter power supplies is a development trend and a hot topic in modern inverter power supply research.
1.2.2 Improvement of traditional inverter power supply control technology
In the past, in order to improve the control performance of the system, the microprocessor was connected to the system through an analog and digital (A/D) converter, and the digital control algorithm was implemented in the microprocessor, and then through the input, output port or pulse width modulation port ( pulse width modulation, PWM) sends a switch control signal. The microprocessor can also display or transmit the collected working data of the power conversion device to the computer for storage. Some reference values used in control can be stored in the memory of the microprocessor and the circuit can be monitored in real time.
The use of microprocessors has greatly improved the performance of circuit systems. However, due to the limitation of microprocessor operation speed, in many cases, this microprocessor-assisted circuit control system still uses analog operations such as operational amplifiers. control element. In recent years, with the development of large-scale integrated circuits, modern programmable logic devices and digital signal processor (SP) technology, full digital control of inverter power supplies has become a reality. SP can read the output of the inverter power supply in real time and calculate the PWM output value in real time, making it possible to apply some advanced control strategies to the inverter power supply control, thereby controlling the harmonics generated when the nonlinear load dynamically changes. Dynamic compensation brings output harmonics to acceptable levels.
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Safety issues to consider in inverter design 1. Products with metal casing must be selected: Vehicle-mounted inverters generate large amounts of heat due to their large power. If the internal heat cannot be dissipated in time, the life of the components will be affected at best, and there is a risk of fire at worst. The metal shell has good heat dissipation properties on the one…
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What are the advantages of communication cabinets? Enhanced security: Cabinets provide physical protection for network equipment, preventing unauthorized access, tampering, and theft. This is especially important in environments where security is a concern. Environmental Protection: Cabinets protect equipment from environmental factors such as dust, moisture, and other pollutants. This protection is critical to maintaining the life and performance of sensitive electronic components. Cable management: Cabinets often…
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Safety issues to consider in inverter design 1. Products with metal casing must be selected: Vehicle-mounted inverters generate large amounts of heat due to their large power. If the internal heat cannot be dissipated in time, the life of the components will be affected at best, and there is a risk of fire at worst. The metal shell has good heat dissipation properties on the one…
1. According to the spectrum division table formulated by the Institute of Electrical and Electronics Engineers (IEEE), the low-frequency frequency is 30~300kHz, the medium-frequency frequency is 300~3000kHz, the high-frequency frequency is 3~30MHz, and the frequency range of 30~300MHz is very high frequency. , 300~1000MHz is ultra-high frequency. Compared with low-frequency signals, high-frequency signals change very quickly and have sudden changes; low-frequency signals change slowly and have…
High-frequency inverter electrical appliances are a kind of switching equipment used in the industrial field. What is the working principle of high-frequency inverters? This equipment is controlled by program logic. High frequency inverter can be used in the telecommunications industry and is a switching device in computer rooms. This kind of power supply can be used in the solar energy industry and power generation industry. It…
What are the advantages of communication cabinets? Enhanced security: Cabinets provide physical protection for network equipment, preventing unauthorized access, tampering, and theft. This is especially important in environments where security is a concern. Environmental Protection: Cabinets protect equipment from environmental factors such as dust, moisture, and other pollutants. This protection is critical to maintaining the life and performance of sensitive electronic components. Cable management: Cabinets often…
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Safety issues to consider in inverter design 1. Products with metal casing must be selected: Vehicle-mounted inverters generate large amounts of heat due to their large power. If the internal heat cannot be dissipated in time, the life of the components will be affected at best, and there is a risk of fire at worst. The metal shell has good heat dissipation properties on the one…
1. According to the spectrum division table formulated by the Institute of Electrical and Electronics Engineers (IEEE), the low-frequency frequency is 30~300kHz, the medium-frequency frequency is 300~3000kHz, the high-frequency frequency is 3~30MHz, and the frequency range of 30~300MHz is very high frequency. , 300~1000MHz is ultra-high frequency. Compared with low-frequency signals, high-frequency signals change very quickly and have sudden changes; low-frequency signals change slowly and have…
High-frequency inverter electrical appliances are a kind of switching equipment used in the industrial field. What is the working principle of high-frequency inverters? This equipment is controlled by program logic. High frequency inverter can be used in the telecommunications industry and is a switching device in computer rooms. This kind of power supply can be used in the solar energy industry and power generation industry. It…
What are the advantages of communication cabinets? Enhanced security: Cabinets provide physical protection for network equipment, preventing unauthorized access, tampering, and theft. This is especially important in environments where security is a concern. Environmental Protection: Cabinets protect equipment from environmental factors such as dust, moisture, and other pollutants. This protection is critical to maintaining the life and performance of sensitive electronic components. Cable management: Cabinets often…
The inverter's runtime opens up the possibility of extending off-grid power. Here are alternatives to consider, from battery upgrades to eco-friendly solutions. Inverter gets longer running time solution Upgrade battery capacity: Extend the running time of the inverter by upgrading to a higher capacity battery (such as a 200Ah or 300Ah battery) to extend the use time without charging. Lithium-Ion Batteries: Choose lithium-ion batteries for superior…
Safety issues to consider in inverter design 1. Products with metal casing must be selected: Vehicle-mounted inverters generate large amounts of heat due to their large power. If the internal heat cannot be dissipated in time, the life of the components will be affected at best, and there is a risk of fire at worst. The metal shell has good heat dissipation properties on the one…
1. According to the spectrum division table formulated by the Institute of Electrical and Electronics Engineers (IEEE), the low-frequency frequency is 30~300kHz, the medium-frequency frequency is 300~3000kHz, the high-frequency frequency is 3~30MHz, and the frequency range of 30~300MHz is very high frequency. , 300~1000MHz is ultra-high frequency. Compared with low-frequency signals, high-frequency signals change very quickly and have sudden changes; low-frequency signals change slowly and have…
High-frequency inverter electrical appliances are a kind of switching equipment used in the industrial field. What is the working principle of high-frequency inverters? This equipment is controlled by program logic. High frequency inverter can be used in the telecommunications industry and is a switching device in computer rooms. This kind of power supply can be used in the solar energy industry and power generation industry. It…
What are the advantages of communication cabinets? Enhanced security: Cabinets provide physical protection for network equipment, preventing unauthorized access, tampering, and theft. This is especially important in environments where security is a concern. Environmental Protection: Cabinets protect equipment from environmental factors such as dust, moisture, and other pollutants. This protection is critical to maintaining the life and performance of sensitive electronic components. Cable management: Cabinets often…
Many inverters on the market only have solar charging function and do not have mains and generator charging functions. However, Sindun's inverter plus battery charger has complete functions, including solar charging, mains charging and generator charging. Various charging methods bring great convenience to our lives. Inverter plus charger tips With rising energy prices and a global focus on sustainable living, more and more people are looking…
Safety issues to consider in inverter design 1. Products with metal casing must be selected: Vehicle-mounted inverters generate large amounts of heat due to their large power. If the internal heat cannot be dissipated in time, the life of the components will be affected at best, and there is a risk of fire at worst. The metal shell has good heat dissipation properties on the one…
1. According to the spectrum division table formulated by the Institute of Electrical and Electronics Engineers (IEEE), the low-frequency frequency is 30~300kHz, the medium-frequency frequency is 300~3000kHz, the high-frequency frequency is 3~30MHz, and the frequency range of 30~300MHz is very high frequency. , 300~1000MHz is ultra-high frequency. Compared with low-frequency signals, high-frequency signals change very quickly and have sudden changes; low-frequency signals change slowly and have…
High-frequency inverter electrical appliances are a kind of switching equipment used in the industrial field. What is the working principle of high-frequency inverters? This equipment is controlled by program logic. High frequency inverter can be used in the telecommunications industry and is a switching device in computer rooms. This kind of power supply can be used in the solar energy industry and power generation industry. It…
What are the advantages of communication cabinets? Enhanced security: Cabinets provide physical protection for network equipment, preventing unauthorized access, tampering, and theft. This is especially important in environments where security is a concern. Environmental Protection: Cabinets protect equipment from environmental factors such as dust, moisture, and other pollutants. This protection is critical to maintaining the life and performance of sensitive electronic components. Cable management: Cabinets often…
Understanding these basic concepts will help guide you in making an informed decision about how many 12V batteries your 2000-watt inverter setup requires for optimal performance. Now that we've covered the basics, let's move on to calculating our specific power requirements! Calculate the power requirements of a 2000 watt inverter When determining the power needs of a 2000 watt inverter, it is important to consider your…