GB/T 51397-2019 in English
VALIDDesign standard for VSC-HVDC system
- Issued on:2019-09-25
- Implemented on:2020-01-01
- File Format:PDF
- Delivery:Via email within 5 business days
$728.00
| Standard No: | GB/T 51397-2019 |
| Document status: | VALID |
| Title in English: | Design standard for VSC-HVDC system |
| Title in Chinese: | 柔性直流输电成套设计标准 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2019-09-25 |
| Implemented on: | 2020-01-01 |
| Professional Classification: | GB-National Standard |
| Related Topics: | direct current transmission
flexo plate power transmission direct current transmission Flexible heating mantle Flexible DC Transmission GBT51397 AC and DC standard source performance Flexible Flexible DC transmission commissioning calculation Sleeve labeling machine Definition and characteristics of standard complete equipment Optical path design standard process Flexible DC transmission grounding equipment technology Flexible plate |
Introduction
Core content and technical points
| Technical dimensions | Conventional DC | Flexible DC | Technological breakthroughs |
|---|---|---|---|
| Converter type | Current source type | Voltage source type (VSC) | Achieving passive network power supply |
| Topology | Thyristor commutation | MMCMulti-level | Harmonics reduced by 50% |
Key design specifications
Insulation coordination design
According to GB/T311.3 standard, the three-stage method is adopted:
- Optimization of lightning arrester configuration (AC side according to GB311.1)
- Overvoltage simulation calculation (including 9 typical working conditions)
- Equipment insulation level verification (margin ≥ 20%)
Control and protection system architecture
| System level | Response time | Redundant configuration |
|---|---|---|
| Station control level | ≤100ms | Dualization |
| Valve control level | ≤50μs | Triple |
Project implementation suggestions
Reliability assurance measures
- N+1 backup configuration of cooling system
- Control and protection Hardware watchdog mechanism
- Key equipment 8-level earthquake-resistant design
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