A method and system for implementing a virtual experiment of low-frequency load shedding in a power system
A technology for low-frequency load shedding and power systems, applied in circuit devices, AC network circuits, reducing/preventing power oscillations, etc., can solve the problems of solidified experimental content, complicated operation, shallow depth, etc., to reduce calculation time and calculation amount , the effect of convenient operation
Active Publication Date: 2019-01-04
SHANDONG UNIV
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, at present, the experimental teaching courses of electrical majors in domestic colleges and universities lack the teaching of basic content related to low-frequency load shedding, so that students have little knowledge of this part of the content, the depth is shallow, and they cannot intuitively understand this part from the data and images. Characteristics and changes of main parameters in the process
Moreover, due to the disadvantages of hardware experimental equipment in terms of maintenance, safety and economy, and the experimental content using hardware equipment is relatively fixed and lacks expansion capabilities, the virtual experimental system has greater advantages and needs in practical applications
In addition, the current simulation of the low-frequency load shedding process of the power system is mainly realized by writing custom modules in comprehensive simulation software such as PSASP and PSS / E, or by writing program packages in other programming environments and establishing interfaces with software such as PSS / E , the operation is relatively complicated, and it requires high programming ability, so it is difficult to apply to the experimental teaching during the undergraduate period
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
[0056] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0057] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0058] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...
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 power system under-frequency load shedding virtual experiment realization method and a realization system. A one-machine equivalent expansion model and an average system frequency model considering an under-frequency load shedding process are constructed, the two constructed models are used for parameter configuration, and a virtual experiment is carried out on the power system under-frequency load shedding. Through constructing the one-machine equivalent expansion model and the average system frequency model considering the under-frequency load shedding process, frequency dynamic response analysis is carried out on the single-machine system and a multi-machine system, and the framework that the existing experiment simulation system carries out simulation only for the traditional power network can be broken through.
Description
technical field [0001] The invention relates to a method and system for realizing a virtual experiment of low-frequency load shedding in a power system. Background technique [0002] Today's power system presents a development trend of large units, high voltage, and long-distance, and with the operation mode of regional networking and AC-DC transmission, although the economy of system interconnection operation has been improved, it has also increased the distance between power plants and users. The distance between them forms a local imbalance between power generation and consumption in the power system, which seriously affects the ability of the system to maintain its own frequency stability under the action of large disturbances. This will cause the system frequency to drop, and even lead to the collapse of the entire network frequency in severe cases. [0003] When the system produces a shortage of active power and the system frequency drops to an abnormal working state,...
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): H02J3/24
CPCH02J3/24H02J2203/20
Inventor 张恒旭韦明杰
Owner SHANDONG UNIV