The realtime unfixed point interpolation computing method of switch in a kind of steplength
The realtime unfixed point interpolation computing method of switch in a kind of steplength
 CN 102,799,765 B
 Filed: 06/19/2012
 Issued: 06/23/2017
 Est. Priority Date: 06/19/2012
 Status: Active Grant
First Claim
1. realtime unfixed point interpolation computing method is switched in a kind of steplength, it is characterised in that methods described comprises the steps：
 A, first steplength pointlike state value of electromagnetic transient is calculated, find there is switch motion in steplength；
B, interpolated value calculating is carried out to switch motion point state value；
C, next steplength pointlike state value is calculated from the switch motion point；
D, from current step point extrapolated value to it is next calculating synchronizing point long；
In the step B, the state value x based on previous step_{1}With current step pointlike state value x_{2}, during to the switch motion point k1The state value x at quarter_{k1}Carry out interpolated value calculating, the x_{k1}Represented with following 1. formulas：
Chinese PRB Reexamination
Abstract
The present invention relates to switch realtime unfixed point interpolation computing method in a kind of steplength.The method comprises the steps：First steplength pointlike state value of electromagnetic transient is calculated, finds there is switch motion in steplength；Interpolated value calculating is carried out to switch motion point state value；Next beansand bullets shooter long status value is calculated from switch motion point；From current step point extrapolated value to next calculating synchronizing point long.When the method carries out switching characteristic circuit counting, it is possible to increase the calculating speed of switch subnet, realtime is conducive to calculate.So as to provide time margin for the precision that switch is calculated, can be applied to realtime, super realtime, offline calculation switching characteristic circuit electromagnetic transient simulation calculate in, wherein whole step size computation can be mutually compatible with various electromagnetic transient switching algorithms and be not limited to such as trapezoidal integration, backwardEuler method, the trapezoidal integration with damping or its modification change combination, the calculating speed and precision of emulation can be effectively improved, optimization electromagnetic transient calculates performance in real time.
1 Claim

1. realtime unfixed point interpolation computing method is switched in a kind of steplength, it is characterised in that methods described comprises the steps：

A, first steplength pointlike state value of electromagnetic transient is calculated, find there is switch motion in steplength； B, interpolated value calculating is carried out to switch motion point state value； C, next steplength pointlike state value is calculated from the switch motion point； D, from current step point extrapolated value to it is next calculating synchronizing point long； In the step B, the state value x based on previous step_{1}With current step pointlike state value x_{2}, during to the switch motion point k1The state value x at quarter_{k1}Carry out interpolated value calculating, the x_{k1}Represented with following 1. formulas：

Specification(s)