Capacitor voltage balance control method of cascade reactive power compensation device
A capacitor voltage and compensation device technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, etc., can solve problems such as complex control process of capacitor voltage of balanced power unit, unstable control state, etc., and achieve ideal balance effect, The effect of strong practicability and simple control method
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
specific Embodiment approach 1
[0040] Specific implementation mode one: the following combination figure 1 and Figure 5 Describe this embodiment, the capacitor voltage balance control method of the cascaded reactive power compensation device described in this embodiment, it includes the following steps:
[0041] Step 1: Collect the AC side voltage u and AC side current i of each power unit 1 in the cascaded reactive power compensation device, and obtain the instantaneous power polarity of each power unit 1 from the result of u×i;
[0042] Step 2: Use the same frequency as the carrier wave of the reactive power compensation device to sample the instantaneous capacitor voltage of the power unit 1, and make a difference between the instantaneous capacitor voltage and the average value of the capacitor voltage of the link where the power unit 1 is located to obtain the power unit 1 A voltage adjustment value, using the voltage adjustment value as a carrier correction value; combining the polarity of the curre...
specific Embodiment approach 2
[0044] Specific implementation mode two: the following combination figure 1 This embodiment will be described. This embodiment will further describe the first embodiment. The instantaneous capacitor voltage of the power unit 1 in this embodiment is the voltage across the capacitor in the power unit.
specific Embodiment approach 3
[0045] Embodiment 3: In this embodiment, Embodiment 1 or Embodiment 2 is further described. The average value of the capacitance voltage of the link is calculated according to the voltage values of the capacitances of all power units 1 on the link.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com