The invention discloses a resonance controller suitable for a single-phase bridge rectifier circuit. The expression of a transfer function of the resonance controller is shown in the description, wherein Ki is an integral coefficient, [omega] is a resonance angular frequency, and [omega]r is an error angular frequency. The resonance controller is used in combination with proportional control to form a proportional resonance controller, and the proportional resonance controller also compensates specific low-order harmonics through resonance control. When the current loop adopts the improved proportional resonance control, the waveform distortion of the input current is obviously reduced, the sine degree is high, and the waveform quality is high. The resonance controller suitable for the single-phase bridge rectifier circuit aims to solve the problem of harmonic control of input current waveform of a rectifying circuit in a vehicle-mounted multiplex charger. On the basis of traditional resonance control, the improved resonance controller is provided, the improved resonance controller can achieve the same control effect as a traditional resonance controller, the problem that the phaseangle at the resonance frequency changes drastically is solved at the same time, and the stability of the system is improved.
本发明公开了一种适用于单相桥式整流电路的谐振控制器,所述谐振控制器的传递函数表达式为:K为积分系数,ω为谐振角频率,ω为误差角频率,所述谐振控制器与比例控制结合使用,形成比例谐振控制器,所述比例谐振控制器还通过谐振控制对特定的低次谐波进行补偿。电流环采用改进比例谐振控制时,输入电流波形畸变明显减小,正弦度较高,波形质量高。本发明的适用于单相桥式整流电路的谐振控制器,针对车载复用充电机中整流电路输入电流波形谐波控制问题,在传统谐振控制的基础上,提出改进谐振控制器,所提改进谐振控制器能够实现传统谐振控制器同样的控制效果,同时改善谐振频率处的相角变化剧烈的问题,提高系统的稳定性。
Resonance controller suitable for single-phase bridge rectifier circuit
一种适用于单相桥式整流电路的谐振控制器
2020-09-15
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
European Patent Office | 2017
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