A Performance Evaluation Method for Regional Control with DC Frequency Modulation Participation
An evaluation method, a technology for regional control, applied in the direction of AC network circuits, power transmission AC networks, circuit devices, etc.
Inactive Publication Date: 2018-05-04
DALIAN UNIV OF TECH
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The existing regional control performance evaluation standards have evolved from A standard to CPS standard, but these two standards are only for the control performance evaluation of each control area in the case of interconnected power systems without DC transmission participating in frequency regulation
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0106] The present invention will be further described below in conjunction with the accompanying drawings. Such as Figure 4 As shown, a method for evaluating the performance of regional control involving DC frequency modulation includes the following steps:
[0107] A. Define and calculate the generalized area control deviation GCE.
[0108] figure 1 Shown is a general area model diagram, area A and area B are connected by an AC tie line, and area B and area C are connected by a frequency-modulated DC tie line.
[0109] B. Calculate the generalized control performance evaluation parameter GPS of a single region.
[0110] figure 2 Shown is a single-area model diagram, which is obtained by interconnecting two areas through a DC tie line.
[0111] C. Calculate the overall control performance evaluation parameter DPS of a single area.
[0112] D. Calculate the multi-regional generalized control performance evaluation parameter GPS.
[0113] image 3 Shown is a multi-zon...
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
Login to View More Abstract
The invention discloses a DC frequency modulation participated area control performance evaluation method. The DC frequency modulation participated area control performance evaluation method comprises the following steps of calculating a generalized area control error GCE; calculating a generalized control performance evaluation parameter GPS of a single area or multiple areas; calculating an integral control performance evaluation parameter DPS of the single area or the multiple areas; and performing coordinated evaluation by using the two parameters. The DC frequency modulation participated area control performance evaluation method is applicable for DC transmission participated frequency modulation. In the presence of the DC transmission participated frequency modulation, the frequency error may be affected by common adjustment of primary frequency modulation, secondary frequency modulation and DC frequency modulation. Therefore, separation of the responsible influence from the DC frequency modulation is required when control performance evaluation is performed for the area with participation of the DC frequency modulation, and the responsibility of the area per se is subjected to the control performance evaluation. The generalized control performance evaluation parameter GPS and the integral control performance evaluation parameter DPS are suitable for distinguishing each frequency modulation responsibility in the presence of the DC transmission participated frequency modulation through coordinated evaluation and index derivation from the single area to the multiple areas.
Description
technical field [0001] The invention relates to a method for evaluating regional control performance of a power system, in particular to a method for evaluating regional control performance involving DC frequency modulation. Background technique [0002] Nowadays, the development of my country's power system has become increasingly mature. With the continuous development of DC transmission technology, DC transmission has some advantages over AC transmission. DC transmission can realize asynchronous networking, effectively isolating the influence between interconnected areas. The active power of DC transmission can be adjusted quickly, which can improve the stability of the system. Therefore, direct current transmission has gradually been more widely used. As a means of frequency modulation, direct current transmission has great advantages. [0003] Because the essence of the power system is the sustainable and free transmission of electric energy to meet the unpredictable ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/36
CPCH02J3/36H02J2203/20Y02E60/60
Inventor 李卫东王岩王海霞巴宇
Owner DALIAN UNIV OF TECH