一种永磁直驱风机零过渡过程动态并网系统

• Format: Patent
• Language: Chinese
• Published: 28.07.2020
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

一种永磁直驱风机零过渡过程动态并网系统，它包括风电机组、整流器、逆变器、滤波器、并网断路器，并网断路器与零过动态并网电力电子开关模块并联，所述零过动态并网电力电子开关模块包括电力电子开关、零过渡动态并网控制系统、信号系统，零过渡动态并网控制系统的数据口分别与电力电子开关以及信号系统连接，信号系统的数据输入口分别与并网断路器两侧连接，信号系统的数据输出口与逆变器连接。本发明能解决风机常规并网方式容易产生暂态过电流，并在系统侧电流中容易产生非周期分量的谐波电流的技术问题。 The invention relates to a dynamic grid-connected system for a zero-transition process of a permanent magnet direct-drive fan. The system comprises a wind turbine generator system, a rectifier, an inverter, a filter and a grid-connected circuit breaker. The grid-connected circuit breaker and a zero-crossing dynamic grid-connected electric power electronic switch module are connected in parallel. The zero-crossing dynamic grid-connected electric power electronic switch module comprises a power electronic switch, a zero-transition dynamic grid-connected control system and a signal system. The data port of the zero-transition dynamic grid-connected control system is respectively connected with the power electronic switch and the signal system. The data input port of the signal sy