PID REGULATION ALGORITHM, PID REGULATOR AND PID REGULATION SYSTEM

WIPO Patent Application WO/2017/166302

A1

A PID regulation algorithm, a PID regulator and a PID regulation system. The PID regulation algorithm is applied to the PID regulator, for performing calculation in accordance with the PID increment type algorithm formula, to acquire a regulation signal, the input deviation e^(k) used in the PID increment type algorithm formula satisfies the formula: e^(k)＝e(k)-e(k-1)-p*e(k), k being a sampling period, p being a convergence factor, de/dt＝p*e, and p<0. When the PID regulation algorithm is used for regulating the output of the target system, only two parameters, namely the proportional gain and the convergence factor, need to be adjusted. The proportional gain is reasonably adjusted to guarantee that the process amount does not oscillate; by means of reasonably setting the convergence factor p, the control responsiveness of the process amount can be further improved, such that it achieves the target value faster, reduces the excess, and has significant improvements in comparison to the existing algorithm control effect.

ZHANG DONGHUA (CN)
SHI CHAO (CN)

PCT/CN2016/078353

October 05, 2017

April 01, 2016

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SHENZHEN INVT ELECTRIC CO LTD (CN)

G05B11/00

CN104062898A	2014-09-24
CN105260520A	2016-01-20

LI, YUCHUN ET AL.: "Correction of Incremental-algorithm PID in Electric Regulating Valve", JOURNAL OF SHUNDE POLYTECHNIC, vol. 9, no. 2, 30 April 2011 (2011-04-30), pages 1 - 3
DONG, XUEQIN ET AL.: "Improved Algorithm Based on Increment PID", JOURNAL OF ZHEJIANG, vol. 11, no. 3, 30 September 2012 (2012-09-30), pages 32 - 35

SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)

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