GB/Z 43464-2023 Electrical power quality requirement of marine energy converters

Scope

This document specifies the definitions, measurement procedures, and evaluation methods for the power quality characteristics of marine energy (wave energy, tidal energy, and other water current energy) conversion devices. The content includes:
a) Definitions and quantitative descriptions of the power quality characteristics of marine energy (wave energy, tidal energy, and other water current energy) conversion devices;
b) Measurement procedures for quantifying the characteristics of marine energy (wave energy, tidal energy, and other water current energy) conversion devices.
The measurement procedures are applicable to single marine energy conversion devices or power generation systems connected to three-phase grid or off-grid networks. This document only requires testing and evaluation at the common coupling point of the high-voltage or medium-voltage system in marine energy conversion devices, and the measurement procedures are applicable to marine energy conversion devices of any capacity.
This document describes simple measurement and reporting procedures for marine energy conversion devices connected to low-voltage grids. Medium-voltage and low-voltage connected devices are defined as:
a) Medium-voltage connected units, typically referring to parallel three-phase marine energy conversion devices operating in offshore power generation systems and transmitting power through high-voltage or medium-voltage grids;
b) Low-voltage connected units, typically referring to single-phase or three-phase marine energy conversion devices supplying power to small-scale loads in grid-connected, off-grid, or microgrid systems.
Given that marine energy is an emerging energy source, this document still has the following limitations:
a) Only voltage fluctuations in continuous operation states are considered, and voltage fluctuations during switching operations are not yet considered;
b) For the flicker values measured for speci

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