GB/T 33592-2017 in English
VALIDSpecification of operation and controlling for distributed resources connected to power grid
- Issued on:2017-05-12
- Implemented on:2017-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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《GB/T 33592-2017分布式电源并网运行控制规范》由524（中国电力企业联合会）归口，主管部门为中国电力企业联合会。
Introduction
GB/T 33592—2017 Standard Overview
GB/T 33592—2017 National Standard of the People's Republic of China "Distributed Generation Grid-connected Operation Control Specification" mainly puts forward specific grid-connected operation control requirements for distributed generation connected to the power grid of 35kV and below. The standard is managed by the China Electricity Council and aims to ensure the safe, reliable and efficient operation of distributed generation.
Key Requirements for Grid-connected Operation Control of Distributed Generation
According to GB/T 33592—2017, the grid-connected operation of distributed generation must meet the following key requirements:
- Definition of Grid-connected Point: For distributed generation connected to the grid through a transformer, its grid-connected point refers to the busbar or node on the grid side of the transformer. For distributed generation connected to the grid without a transformer, its grid-connected point is the output aggregation point.
- Power quality monitoring: Distributed power sources need to monitor and record power quality indicators such as harmonics, voltage fluctuations and flickers, and voltage deviations at the grid connection point in real time, and upload them to the grid management department regularly.
- Communication and automation requirements: Distributed power sources connected to the grid via 10(6)kV~35kV need to have reliable communication capabilities to ensure the accuracy and real-time nature of information transmission with the grid dispatching organization.
Comparison table of standard frameworks
| Specification dimensions | Distributed generation type | Grid-connected voltage level | Application scope |
|---|---|---|---|
| Power quality requirements | Synchronous generator/induction generator/converter type | 10(6)kV~35kV | Public grid and user side |
| Low voltage ride-through capability | All types | 10(6)kV~35kV direct connection | Public grid |
| Frequency anomaly response | Converter type/synchronous generator/induction generator type | 220V/380V~10(6)kV | User internal power grid and public power grid |
Implementation suggestions
To ensure the compliance and efficiency of distributed power grid-connected operation, it is recommended to take the following measures:
- Equipment selection and testing: Strictly select distributed power equipment that complies with GB/T33593-2017 in accordance with standard requirements and complete relevant tests.
- Communication protocol optimization: According to the grid-connected voltage level and application scenario, reasonably configure the communication method (optical fiber private network, other transmission media) to ensure that the transmission rate and bit error rate meet the requirements.
- Power quality management: Establish a real-time monitoring and early warning system to promptly detect and handle power quality problems to avoid affecting the public power grid.
- Training and maintenance: Conduct regular training for technical personnel of distributed power generation operators and managers to ensure that they are familiar with standard requirements and operating procedures.
Technology evolution analysis
With the rapid development of renewable energy, the proportion of distributed power sources in the power grid will continue to increase. Future technological development should focus on the following directions:
- Smart microgrid technology: Realize the coordinated operation of distributed power sources and power grids through intelligent control.
- Energy storage system application: Combine energy storage technology to optimize power quality and improve the grid regulation capability.
- High-voltage ride-through technology: Further improve the adaptability of distributed power sources under extreme grid conditions.
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