摘要
光伏发电、风力发电、储能装置、电动汽车都属于电力电子类型电源,具有"随机性"的特点,统一按"随机性电源"考虑。文章分析了"随机性电源"的共同特点,对即插即用接入的要求,光储一体机及微电网拓展应用方式,采用DC/DC、DC/AC两种电力电子装置,构建了不同应用场景、不同功率组合的随机性电源转换设备,采用模块化并联、20Hz电源注入主动式孤岛、超高速控制、无通信线互联微电网控制、虚拟同步发电机、预同步并网、保护控制等关键技术,实现了随机性电源功率全覆盖接入应用场景、安全并网、信息互联、快速控制、微电网的即插即用。
Photovoltaic generation, wind generation, energy storage devices and electric vehicles are all power electronics sources, with stochastic characteristics. This paper analyzes characteristics of stochastic power sources, requirements for plug and play integration, PV and storage integrated device and expanding application of micro-grid. Both DC/DC and DC/AC devices are used to construct stochastic power conversion equipment of different scenarios and different combination of power. The plug and play of full power coverage of stochastic power sources accessing application scenarios, safety interconnection, internet information, rapid control, and microgrid are achieved through key technologies including modular parallel, active islanding based on 20Hz electrical source injection, ultra-high speed control, wireless control ofmicrogrid, virtual synchronous generator, pre synchronization, orotection and control.
出处
《供用电》
2017年第1期61-67,71,共8页
Distribution & Utilization
