The invention relates to a charging pile charging module current sharing method and a charging pile. The method comprises the following steps: acquiring a current error and a current change rate of a charging module; performing fuzzy reasoning based on the first membership function, the second membership function, the current error and the current change rate, and obtaining a first membership degree of the current error, a second membership degree of the current change rate, and a phase shift angle control rule of the charging module corresponding to the first membership degree and the second membership degree; performing AND operation on the third membership function, the first membership degree and the second membership degree based on a phase-shifting angle control rule to obtain a phase-shifting angle control fuzzy set of the charging module; and processing the control fuzzy set based on an area bisection method, obtaining a phase-shifting angle adjusting quantity of the charging module, and controlling the current output of the charging module according to the sum of the phase-shifting angle adjusting quantity and the current phase-shifting angle control quantity of the charging module. The charging modules are balanced in output, so that the charging modules reach the optimal operation state, and the service life of the charging modules is prolonged.
本申请涉及一种充电桩充电模块均流方法以及充电桩。所述方法包括:获取充电模块的电流误差和电流变化率;基于第一隶属函数、第二隶属函数、电流误差和电流变化率进行模糊推理,获取电流误差的第一隶属度、电流变化率的第二隶属度,以及与第一隶属度和第二隶属度对应的充电模块的移相角控制规则;基于移相角控制规则,对第三隶属函数、第一隶属度和第二隶属度进行与运算,获取充电模块的移相角控制模糊集合;基于面积平分法处理控制模糊集合,获取充电模块的移相角调节量,并根据移相角调节量和充电模块的当前移相角控制量之和控制充电模块的电流输出。各充电模块均衡输出,使得充电模块达到最佳运行状态,延长充电模块的使用寿命。
Charging pile charging module current sharing method and charging pile
充电桩充电模块均流方法以及充电桩
2024-03-22
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL |
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