The parallel inverter consists of two thyristors (T1 and T2), a capacitor, center-tapped transformer and an inductor. The thyristor is used to provide a current path, while the inductor L is used to make the current source constant. These thyristors are controlled on and off by commutation capacitors connected between them.
This complementary commutation method is used to turn the capacitor on and off. Complementary commutation means that when T1 is on, the firing angle is applied to T2 and then the capacitor will turn off T1. What exactly happens is that when T2 is on and the firing angle is applied to T1, T2 will be off due to the capacitor voltage. The output current and voltage are Io and Vo respectively.
It is called a parallel inverter because in the working state, the capacitor C is connected in parallel with the load through the transformer. A shunt inverter is also called a center-tapped transformer inverter because it has a center-tapped transformer between the load and the drive circuit. The function of a transformer is to convert DC into alternating current of the required voltage.
Working of parallel inverters
It operates in simple two modes.
Mode 1
When T1 is triggered, the commutation capacitor will close T2 and the current in the primary winding will flow from A to n. This current in the primary winding will cause the current in the secondary winding to flow clockwise.
Mode 2
By triggering T2, the commutation capacitor will turn off T1. Therefore, the current in the primary winding will flow from B to n and the current in the primary winding will cause the current in the secondary winding to flow counterclockwise.
Advantages of parallel inverters
Several advantages of parallel inverters are as follows:
Stable load voltage: The waveform of the load voltage is independent of the load, and this limitation exists in series inverters. The output voltage of the series inverter depends on the unwanted load.
Cheapest Circuit: The parallel inverter circuit is the cheapest and simplest as it requires only two switches and a center-tapped transformer.
Simple commutation: These inverters use simple Class C commutation operation. Furthermore, the commutation elements do not carry the full load current, which is a very useful aspect of parallel inverters
Few control switches: Compared with H-bridge inverter, only two control switches are needed to complete the operation. The minimum number of switches required for an H-bridge inverter is 4.
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…
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…