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IEVref: | 351-50-11 | ID: | |||||||||||

Language: | en | Status: Standard | |||||||||||

Term: | proportional plus integral element | ||||||||||||

Synonym1: | PI element [Preferred] | ||||||||||||

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Definition: | linear time-invariant transfer element created by the additive combination of a proportional element and an integral element Note 1 to entry: The transfer function of an ideal PI element is given by $\frac{V\left(s\right)}{U\left(s\right)}={K}_{\text{\Rho}}\cdot \left(1+\frac{1}{{T}_{\text{i}}\cdot s}\right)$ where
Note 2 to entry: This entry was numbered 351-28-22 in IEC 60050-351:2006. | ||||||||||||

Publication date: | 2013-11 | ||||||||||||

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Internal notes: | 2017-08-28: <mstyle displaystyle=true'> corrected to <mstyle displaystyle='true'>. LMO | ||||||||||||

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Note 1 to entry: The transfer function of an ideal PI element is given by

$\frac{V\left(s\right)}{U\left(s\right)}={K}_{\text{\Rho}}\cdot \left(1+\frac{1}{{T}_{\text{i}}\cdot s}\right)$

where

T_{i} | is the reset time; |

K_{P} | is the proportional action coefficient; |

s | is the complex variable of the Laplace transform; |

U(s) | is the input transform; |

V(s) | is the output transform. |

Note 2 to entry: This entry was numbered 351-28-22 in IEC 60050-351:2006.