Improve the efficiency of the electric control system of electric buses through dynamic adjustment technology of carrier frequency

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Improve the efficiency of the electric control system of electric buses through dynamic adjustment technology of carrier frequency 2021-02-23

First of all, starting from the loss of the electronic control system, the current loss of the electronic control system mainly comes from the inverter controller part, and 70% of the inverter controller loss mainly comes from the switching part, so from the perspective of switching loss , Research on the technology of dynamic adjustment of carrier frequency.

Through simulation experiments, it is found that after adjusting the switching frequency, the efficiency of the inverter can be increased by up to 2%. Using dynamic carrier frequency technology, especially at low speeds and when the carrier frequency requirements are not so high, adjusting the carrier frequency can effectively reduce The loss of the controller provides the efficiency of the controller.

According to preliminary statistics, it can provide about 1.5 kilometers per 100 kilometers, and the carrier frequency cannot be reduced without limitation. It is also necessary to consider the needs of vehicle noise and motor control.

Our company specializes in the production of electric control systems for new energy electric buses.

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