Component-based method for real-time simulation element of power system
A real-time simulation and power system technology, applied in design optimization/simulation, special data processing applications, geometric CAD, etc., can solve problems such as increasing the dimension of network equations, increasing the amount of solution calculations, unfavorable real-time simulation, etc., to facilitate maintenance And the effect of expansion, reduction of nodes, and tight encapsulation
Pending Publication Date: 2020-08-25
TIANJIN UNIV
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, the existing nodal voltage method for real-time simulation of power systems has a major defect: in the power system, there are a large number of units composed of some basic power components in a fixed form, such as isolating switches, circuit breakers, current transformers, etc. The incoming line (outlet line) interval unit is composed of line, short circuit fault, disconnection fault, etc., and the fault line unit is composed of transformer, grounding knife switch, discharge gap, etc., and is composed of generator, current mutual inductance Generator units composed of transformers, voltage transformers, disconnectors, circuit breakers, etc.
If each component is calculated separately, the dimension of the network equation will be greatly increased, thereby increasing the calculation amount of the solution and increasing the simulation time, which is not conducive to the realization of real-time simulation
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
[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0034] The present invention proposes a componentized method for real-time simulation components of a power system, comprising the following steps:
[0035] (1) Componentize the real-time simulation components of the power system. First, calculate the simulation parameters used in real-time simulation according to the original parameters given by the user. Then, the power element is differentiated by the differential differentiation method, and the equivalent simulation model of the power element is described by the equation YU=I, where Y is the equivalent node admittance matrix of the power element, U is the node voltage vector, and I is The node injects the current vector. Afterwar...
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 component-based method for a real-time simulation element of a power system. Parts such as electrical characteristics, external equivalence and internal electrical quantity solution of the power element are packaged into a component by using a component-based design thought. The combination of the power components is provided on the basis of the combination principle of the components. For some power system combination units which are fixed in connection mode in a simulation system or only concern external characteristics of the power system combination units by researchers, modeling is carried out in the form of a combination component, and the combined power component with a brand-new operation event and an external interface is formed. According to the method designed by the invention, the time required for solving the network equation is shortened, the simulation speed is increased, and the real-time simulation scale of the power system is effectively increased.
Description
technical field [0001] The invention belongs to the technical field of electric power automation and relates to a componentization method for real-time simulation components of a power system. Background technique [0002] The real-time simulation of power system is the basis for realizing the hardware-in-the-loop experiment of new secondary equipment and the technical training for power system staff. The realization of real-time simulation of power system has very important theoretical significance and engineering application background. [0003] The state variable method and the node voltage method are two classic simulation methods. The state variable method implicitly solves each differential equation through the predictive correction method, which has greater flexibility in the selection of the algorithm, and has higher accuracy in solving nonlinear elements, but the calculation efficiency is low and the simulation step cannot be switched flexibly. long. The node volt...
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 & AuthorityApplications(China)
IPC IPC(8): G06F30/17G06F30/20
CPCG06F30/17G06F30/20
Inventor张炳达朱俊杰
OwnerTIANJIN UNIV