【摘要】 通过对移相变压器的原理、结构、参数及控制原理的关键技术介绍，对三个典型应用案例进行了阐述。为解决分布式光伏发电接入集中地区，靠近光伏发电站出线端线路电压过高，光伏发电接入较多的线路与其他线路的负载不平衡问题，研制了智能控制移相变压器。通过智能控制移相变压器控制关键技术进行自动调节和控制，以实现移相变压器两侧电压的调节。同时通过改变线路电压的相角，引起有功潮流的大小及方向的改变，将移相变压器串接在配电网线路中，实现线路末端电压调节。智能控制移相变压器π(并)接在两条线路之间，实现两条线路间潮流可控倒移的功能。智能控制移相变压器有效解决了新能源接入下的电网线路间负载不平衡的问题，实现了“虚拟电厂”的调节功能。更多还原

【Abstract】 This article introduces the key technologies of the structure,parameters,and control principles of phase-shifting transformers,and elaborates on the application process of three typical application cases.In order to solve the problems of high voltage on the near end lines of distributed photovoltaic power generation in concentrated areas,as well as the load imbalance between lines with more photovoltaic power generation connections and other lines,we have developed a phase-shifting transformer and used key technology of phase-shifting transformer control to automatically adjust and control the voltage on both sides of the phase-shifting transformer.At the same time,by changing the phase angle of the line voltage,the magnitude and direction of the active power flow are changed,and the phase-shifting phase change is connected in series in the distribution network line to achieve voltage regulation at the end of the line;π is connected between two lines to achieve the function of controllable reversal of power flow between the two lines.Effectively solved the problem of load imbalance between power grid lines under the integration of renewable energy,and achieved the regulation function of “virtual power plants”.更多还原