How does the thyristor transient phase control calculator work
The thyristor transistor phase control calculator is a tool used to calculate and control the phase control system of a thyristor (thyristor). It realizes phase control of the AC power system by adjusting the trigger pulse phase of the thyristor. Its working principle and implementation process will be introduced in detail below.
Working principle of thyristor transient phase control calculator
A thyristor is a semiconductor device whose characteristics can control the conduction and shutdown of current to a certain extent. When a thyristor is subjected to a trigger pulse, it conducts for half the cycle, allowing current flow. However, the phase of the trigger pulse determines how long the thyristor conducts. Therefore, the current can be controlled by adjusting the trigger pulse phase.
The thyristor transistor phase control calculator is designed based on this principle. It realizes phase control of the power system by calculating and analyzing the trigger pulse phase of the thyristor. Specifically, it achieves phase control through the following steps:
1)Sampling voltage and current signals from AC power systems;
2)Process the sampling signal to obtain the trigger pulse phase of the thyristor;
3)According to the control requirements, calculate the new trigger pulse phase;
4)Output the new trigger pulse phase to the thyristor controller;
The controller controls the triggering moment of the thyristor according to the new trigger pulse phase, thereby achieving phase control of the power system.
Implementation process of thyristor transient phase control calculator
The following describes the implementation process of the thyristor transistor phase control calculator in detail:
Sampling voltage and current signals from AC power systems
The thyristor transistor phase control calculator obtains the essential data required for thyristor control by sampling the voltage and current signals of the AC power system. The sampling signal's accuracy and stability directly affect the phase control's accuracy and stability. Therefore, an appropriate sampling circuit and sampling frequency need to be selected.
Process the sampling signal to obtain the trigger pulse phase of the thyristor.
The sampled signal needs to be processed to obtain the trigger pulse phase of the thyristor. The processing process includes signal filtering, rectification, amplification and other operations. The sampled signal can be converted through these processes into a form suitable for calculation and control. In this process, the effects of various noises and interferences must be considered to ensure the accuracy and stability of the signal.
Calculate the new trigger pulse phase according to the control requirements.
According to the control requirements, a new trigger pulse phase must be calculated. This process usually involves complex mathematical operations and algorithms, such as the PID control and fuzzy control algorithms. These algorithms can convert the control requirements into new trigger pulse phases. In this process, the power system's dynamic and steady-state characteristics must be considered to ensure the accuracy and stability of phase control.
Output the new trigger pulse phase to the thyristor controller
After calculating the new trigger pulse phase, it must be output to the thyristor controller. This process can be implemented through hardware such as a programmable logic controller (PLC). During the output process, the stability and reliability of the signal need to be ensured to avoid adverse effects on the triggering of the thyristor.
The controller controls the triggering moment of the thyristor according to the new trigger pulse phase, thereby achieving phase control of the power system.
The controller controls the triggering moment of the thyristor according to the new trigger pulse phase. In this process, the switching characteristics of the thyristor and the operating status of the power system need to be considered. Through this process, the phase control of the power system can be realized to achieve the purpose of regulating the current. At the same time, the stability and reliability of the control process must be ensured to avoid adverse effects on the power system.
In summary, the thyristor transistor phase control calculator is a tool for calculating and controlling thyristor phase control systems. It achieves phase control of the AC power system by adjusting the trigger pulse phase of the thyristor. The implementation process includes sampling, processing, calculation, output and control.
Supplier
PDDN Photoelectron Technology Co., Ltd. is a high-tech enterprise focusing on the manufacturing, R&D and sales of power semiconductor devices. Since its establishment, the company has been committed to providing high-quality, high-performance semiconductor products to customers worldwide to meet the needs of the evolving power electronics industry.
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