Dry transformers parallel connection flow technology
2022-11-11
In practice, the output parameters of a DC stable dry transformer (such as voltage, current, and power) often cannot satisfy the requirements, and the DC stable dry transformers who are satisfied with this parameter require It is bound to increase the capital. Therefore, in use, the modular construction method is often selected, the modular dry transformers of the specification series are selected, and the intention of the output voltage, output current, and output power expansion according to the series or parallel method.
In the process of parallel expansion of the dry transformer, in order to improve the stability of the system operation, the transformer manufacturer N+M redundant method can be selected. D. D. Mer. Capital also adds accordingly
In the parallel flow of the dry transformer, a wider way to use is to actively operate the same current skills. It ensures the output current of the entire system by taking the electronic control and conditioning ring circuit. The output ability of a unit, and ensure the intention of each unit's reliable operation
The uniform flow skills should be satisfied with the following conditions:
① The dry bus module unit should be selected;
② The entire system should have a good equalized transient response characteristics;
③ The entire parallel output expansion system has a public control
The commonly used parallel average flow skills are as follows:
① Change the internal resistance method (slope control method); ② master/ slave manipulation method (master/ slave);
③ External control method;
④ Uniform current -type active load average flow method;
⑤ The current active average flow method (active master/from the law of law democracy);
⑥ Perseverance of the same flow method
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