Multi-STATCOM damping controller design method

A technology of damping controller and design method, which is applied in the field of power system to achieve the effect of improving system safety and stability, eliminating hidden dangers of system safety and stability, and good damping control performance

Active Publication Date: 2012-11-21
CHINA ELECTRIC POWER RES INST +1
View PDF2 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a design method of multiple STATCOM damping controllers, which solves the problem of negative interaction effects caused by simultaneous operation of multiple STATCOM damping controllers, elimin

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-STATCOM damping controller design method
  • Multi-STATCOM damping controller design method
  • Multi-STATCOM damping controller design method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0071] Below to figure 2 The four-machine system shown is taken as an example to further describe the present invention in detail. Appropriate modifications were made to the grid structure in Zone 1 to reduce the damping ratio of the G1-related oscillation mode. The small disturbance stability analysis results show that the modified system contains two weakly damped oscillation modes: one is the regional oscillation mode of the Zone 1 unit relative to the Zone 2 unit , the oscillation frequency is 0.55Hz; the other is the local weakly damped oscillation mode of G1 in region 1 relative to the system, and the oscillation frequency is 0.80Hz.

[0072] Install a STATCO damping controller at bus 7 to improve the damping characteristics of the system's regional oscillation mode. image 3 and Figure 4 It is the control effect of STATCOM1 voltage controller and damping controller, the dotted line in the figure is the control effect of STATCOM voltage controller, and the solid line...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a multi-STATCOM (Static Synchronous Compensator) damping controller design method. The method comprises the following steps: (1), setting a power system which has N STATCOMs under the same oscillation mode, and sequentially setting the parameters of lead-lag links of the N STATCOM damping controllers; (2), taking each STATCOM critical gain matrix as a basic value to unify operation gain matrices so as to obtain a gain coefficient matrix; (3), calculating a gain matrix sequence of an operation gain micro-increment test; (4), obtaining a gain matrix sequence extreme value and an operation gain through a synchronous gain micro-increment test for the N STATCOM damping controllers; (5), determining the operation gain of the N STATCOMs based on gain constraint conditions; and (6), verifying the damping effect, regulating the gain, and finally determining a coordination operation gain of the N STATCOM damping controllers. Due to the adoption of the method, the potential hazards in the safety and stability of a system are eliminated so as to realize the coordinated and stable operation of the multi-STATCOM damping controllers and fully play the better damping control performance of the multiple STATCOMs, therefore, the system is improved in safety and stability.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a design method for multiple STATCOM damping controllers. Background technique [0002] The emergence of Flexible AC Transmission System (FACTS) provides a very effective means for the safe, economical, reliable and high-quality operation of modern power systems. STATCOM is one of the important members of the flexible AC transmission system, and it plays an important role in increasing the transmission capacity, enhancing the system damping, and improving the power quality of the large-area interconnection system. In recent years, more and more studies have shown that the possible interaction between multiple STATCOM controllers will have a significant impact on the operation and control of the power system. In severe cases, the control performance of the STATCOM device may deteriorate, and even cause system Unsteady. However, under normal circumstances, when people design STATCOM ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02J3/38
CPCY02E40/16Y02E40/10
Inventor 高磊艾东平何凤军濮钧李文锋汤涌
Owner CHINA ELECTRIC POWER RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap