Provided is a method for controlling an inverter which enables a greater amount of electric current to flow through the inverter by appropriately suppressing the generation of heat by a switch element. This method for controlling an inverter includes: an electric current acquiring step S100 of acquiring phase currents; an estimating step S200 of estimating an average electric current per cycle ofa switching operation, flowing through each of a plurality of switch elements in the inverter; an updating step S300 of determining, for each phase, an optimal distribution of time ratios of a plurality of switching patterns, on the basis of the estimated value of the average electric current; and a generating step S400 of generating a control signal for controlling the switching operations of theplurality of switch elements on the basis of the optimal distributed values of the time ratios; wherein the electric current acquiring step, the estimating step, the updating step and the generatingstep are carried out repeatedly.
本发明提供能够适当地抑制开关元件的发热,使更多的电流流过逆变器的逆变器的控制方法。逆变器的控制方法。逆变器的控制方法包含:获得相电流的电流获得步骤(S100);估计分别流过逆变器的多个开关元件的、开关动作的每一周期的平均电流的估计步骤(S200);根据平均电流的估计值并按照每相确定多个开关模式的时间比的最佳分配的更新步骤(S300);以及根据时间比的最佳分配的值生成对多个开关元件的开关动作进行控制的控制信号的生成步骤(S400),重复执行电流获得步骤、估计步骤、更新步骤以及生成步骤。
METHOD FOR CONTROLLING INVERTER, MOTOR DRIVE UNIT, MOTOR MODULE, AND ELECTRIC POWER STEERING DEVICE
逆变器的控制方法、马达驱动单元、马达模块以及电动助力转向装置
2020-04-17
Patent
Electronic Resource
Chinese
IPC: | 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 / B62D MOTOR VEHICLES , Motorfahrzeuge / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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