SVG-based deep well non-coal mine electrified railway power supply system and use method thereof
A technology for electrified railways and power supply systems, which is applied to AC networks to reduce harmonics/ripples, reduce/prevent power oscillations, adjust/eliminate/compensate reactive power, etc., and can solve problems such as grid resonance and poor dynamic performance. Achieve the effect of strong adaptability, fast governance speed and high reliability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0058] Embodiment 1: apply the present invention in PSCAD, build as figure 2 The simulation model of the deep well non-coal mine electrified railway power supply system with dynamic SVG reactive power compensation device is shown. The voltage level of the AC power supply system is 115kV. is 0.01Ω, the moment of failure is 1s, the duration is 1s, and the sampling rate is 20KHz. The specific process of implementation is as follows:
[0059] 1. When a three-phase ground fault occurs on the AC side, the Figure 4 and Image 6 It can be seen that the DC voltage drops instantly, and the system current rises rapidly. At this time, the monitoring and fault diagnosis unit detects the system current information and transmits it to the control chip.
[0060] 2. The control chip detects that the system current is too high, and the controller and the drive and protection circuit give the drive information for reactive power compensation.
[0061]3. The inverter circuit in the device re...
Embodiment 2
[0063] Embodiment 2: apply the inventive method in PSCAD, build as figure 2 The simulation model of the power supply system of the deep mine non-coal mine electrified railway with dynamic SVG reactive power compensation device shown, the voltage level of the AC power supply system is 115kV, the SVG device is connected in parallel on the AC side, and a three-phase ground fault occurs on the AC side. For the reactive power compensation capability of the method and system of the present invention in a high-resistance fault state, the transition resistance is set to 300Ω, the fault occurrence time is 1s, the duration is 1s, and the sampling rate is 20KHz. The specific process of implementation is as follows:
[0064] 1. When a three-phase ground fault occurs on the AC side, the Figure 7 and Figure 9 It can be seen that the DC voltage drops instantly, and the system current rises rapidly. At this time, the monitoring and fault diagnosis unit detects the system current informati...
PUM

Abstract
Description
Claims
Application Information

- Generate Ideas
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com