A Modeling Method of Phase Advance Capability of Generating Set
A technology of generating sets and modeling methods, which is applied in the direction of circuit devices, AC network circuits, and AC network voltage adjustments, can solve problems such as missing data, inability to accurately fit, and high requirements for completeness of test data, etc., and achieve phase advancement capabilities The effect of accurate model and improved precision
Active Publication Date: 2018-01-12
SOUTHEAST UNIV
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the accuracy of the fitting results has high requirements on the completeness of the test data, especially for new power plants and retrofit power plants, there is a possibility that missing data may lead to inaccurate fitting
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
[0031] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0032] Such as figure 1 As shown, a method for modeling the phase advance capability of a generator set according to an embodiment of the present invention includes the following steps:
[0033] Step 10) Obtain generator set parameters, main transformer ratio, high plant transformer ratio and actual operation data; generator set parameters include rated power, machine terminal rated voltage and direct axis synchronous reactance. The actual operation data includes the active output, reactive output and machine terminal voltage of the generating set, as well as the voltage, frequency, active power and reactive power of the utility load.
[0034] Step 20) According to the generator set parameters and the main transformer ratio, determine the different operating conditions of the generating set and the different voltage levels of the system, an...
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 modeling method for phase advance capability of a generator set. The method comprises the following steps: (10) obtaining parameters of the generator set, a transformer ratio of a main transformer, the transformer ratio of a high voltage service transformer and actual operation data; (20) determining different operation conditions of the generator set and different voltage levels of a system, and determining static stability limits of the generator set in different operation conditions; (30) correcting a station service load model according to the actual operation data, and building the corrected station service load model in a PSD-BPA power flow program; and (40) adjusting active power outputs of the generator set and the voltage levels of the system in the PSD-BPA power flow program, testing the maximum phase advance depth of the generator set when meeting station service voltage constraints and the static stability limits, and determining the phase advance capability of the set by integrating the maximum phase advance depth of the generator set under different active power outputs and voltage levels of the system. According to the modeling method, the accuracy of predicting the phase advance capability of the generator set can be improved.
Description
technical field [0001] The invention relates to a modeling method for the phase advance capability of a generating set. Background technique [0002] The phase-advancing operation of the generator is one of the important means of voltage regulation in the system. It has good voltage regulation effect and is easy to operate. In the project, the phase advance capability of the unit is determined through the phase advance operation test of the unit. The result is affected by the voltage level of the system during the test, and there is a problem that the phase advance depth is insufficient and cannot be applied to different operating conditions. With the improvement of manufacturing technology, the phase advance capability of thermal power units is mainly constrained by the static stability limit and plant power voltage. When the unit is running in phase advance, the reduction of the excitation current will cause the power angle of the generator to increase, approaching the st...
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): H02J3/12
CPCH02J3/12H02J2203/20
Inventor 汤奕徐筝李辰龙戴玉臣陈斌
Owner SOUTHEAST UNIV