The invention provides a self-adaption control method for intelligently recognizing the quality of a power grid and a vehicle-mounted OBC power transmission framework. The self-adaption control methodcomprises the following steps: sampling electrical parameters of a preceding-stage PFC circuit in the vehicle-mounted OBC power transmission architecture connected with a power grid; calculating a voltage harmonic distortion rate THDU of the power grid according to the electrical parameters; and adjusting the output of the vehicle-mounted OBC power transmission architecture according to the voltage harmonic distortion rate THDU. Compared with the prior art, the method has the advantages that the quality of the power grid can be monitored in real time, the quality of the power grid is quantified by judging the harmonic content of the power grid, and then the output of the post-stage LLC circuit in the vehicle-mounted OBC power transmission architecture is adaptively adjusted according to the quantified value, so that the method adapts to the OBC of the vehicle-mounted charger.
本发明提出了一种智能识别电网质量并自适应的控制方法及车载OBC功率传输架构,所述智能识别电网质量并自适应的控制方法,包括:采样与电网连接的车载OBC功率传输架构中前级PFC电路的电气参数;根据所述电气参数计算电网的电压谐波畸变率THDU;根据所述电压谐波畸变率THDU调节所述车载OBC功率传输架构的输出。与现有技术相比,本发明可以实时监控电网的质量,通过判定电网的谐波含量,从而给电网质量进行量化,然后通过量化的值,自适应的调节车载OBC功率传输架构中后级LLC电路的输出,从而适应车载充电机OBC。
Self-adaption control method for intelligently recognizing quality of power grid and vehicle-mounted OBC power transmission framework
智能识别电网质量并自适应的控制方法及车载OBC功率传输架构
2021-03-02
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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