摘要
智能万用变压器(IUT)是一种含有电力电子变换器且通过高频变压器进行磁耦合实现电力系统中的电压变换和能量传递的新型电能转换设备。其突出特点在于它可以实现对变压器原副方电压幅值和相位的灵活控制,它能使系统具有更高的稳定性,实现更加灵活的输电方式,整合各种交直流分布式电源,以及实现电力市场下对功率潮流的实时控制。提出一种智能万用变压器的电路拓扑结构,搭建了变压器模型,着重分析了变压器的电压、功率、频率的控制原理,并以此提出了10kV系统中智能万用变压器的控制策略,用DSP芯片TMS320C28343对PWM信号进行控制,做出了Matlab/simulink仿真,仿真结果表明,该控制策略对10kV系统的电压、功率、频率控制效果良好,改善了电压特性,提高了系统的稳定性。
An intelligent universal transformer is a new kind of power conversion equipment of voltage conversion and energy transfer which contains electronic power converters and magnetic coupling is carried out by a high frequency transformer to achieve the power system. Its prominent characteristic is that it can achieve flexible control of the primary and secondary side voltage amplitudes of the transformer and the phase position and make the system higher stability achieve more flexible transmission,integrate various AC -DC distributed source and achieve the real-time control of power flow under electricity market. The paper puts forward a topological structure of the circuit of the transformer and analyzes the control principle of the voltage, power and frequency of the transformer. It proposes the control plan of the transformer. Use DSP chip TMS320C28343 to control PWM signal and make Matlab/Simulink simulation. The simulation shows that the control strategy has fine result to the voltage ,power and frequency of 10kV system and has improved the voltage characteristic and has increased the system stability.
出处
《电气开关》
2012年第3期18-21,共4页
Electric Switchgear
基金
湖南省研究生科研创新项目(CX2010B368)
关键词
智能万用变压器
拓扑结构
10KV系统
DSP
仿真
intelligent universal transformer
topological structure
10kV system
DSP
simulation
