双向并网电源转换器. 第1部分: 通用要求

[中文适用范围]： IEC 62909的这一部分规定了双向并网功率转换器（GCPC）的一般方面，由在应用侧具有两种或多种类型的DC端口接口的网侧逆变器组成，系统电压不超过1000 V AC或 1500V 直流。在特殊情况下，GCPC 将只有一个 DC 端口接口，该接口连接到双向储能设备。本文档包括术语、规范、性能、安全性、系统架构和测试用例定义。 “系统架构”定义了逆变器和转换器之间的交互。定义了通用、通用且独立于各个发电机和双向存储的特殊特性的要求。本文档不涵盖属于 IEC 62040（所有部分）范围的不间断电源 (UPS) 系统。可能需要内部和外部数字通信的要求； IEC 62909 的未来部分提供了包括与分布式能源通信在内的接口要求。所有 EMC 要求均参考现有 IEC 标准定义。外部通信要求超出了本文档的范围。注：本文件中未定义来自电网的控制信号。 [外文原描述]： IEC 62909-1:2017 specifies general aspects of bi-directional grid-connected power converters (GCPC), consisting of a grid-side inverter with two or more types of DC-port interfaces on the application side with system voltages not exceeding 1 000 V AC or 1 500 V DC. In special cases, a GCPC will have only one DC-port interface, which is connected to a bidirectional energy-storage device. This document includes terminology, specifications, performance, safety, system architecture, and test-case definitions. The "system architecture" defines interaction between the inverter and converters. Requirements which are common, general, and independent of special characteristics of individual generators and bi-directional storages are defined. This document does not cover uninterruptible power supply (UPS) systems, which fall under the scope of IEC 62040 (all parts). Requirements for internal and external digital communication might be necessary; the interface requirements including communication with distributed energy resources are provided in a future part of IEC 62909. All EMC requirements are defined by reference to existing IEC standards. External communication requirements are out of scope of this document.