目前控制系統(tǒng)調(diào)度策略和控制性能兩者的最優(yōu)化是一個(gè)難題。由瑞典Lund 學(xué)院開發(fā)
的Jitterbug 工具箱，提供了一個(gè)分析網(wǎng)絡(luò)控制系統(tǒng)時(shí)延的平臺(tái)，可以對(duì)各種時(shí)延情況下的線性閉環(huán)控制系統(tǒng)提供靜態(tài)的性能預(yù)估分析。本文基于Jitterbug 內(nèi)部模塊特性，利用其特定的調(diào)度策略和性能指標(biāo)函數(shù)，針對(duì)一類網(wǎng)絡(luò)控制系統(tǒng)，導(dǎo)出了該實(shí)時(shí)閉環(huán)控制系統(tǒng)的性能優(yōu)化時(shí)延需求，并進(jìn)行了時(shí)延補(bǔ)償分析。
關(guān)鍵詞：Jitterbug；預(yù)估分析；代價(jià)函數(shù)；時(shí)延補(bǔ)償；網(wǎng)絡(luò)控制系統(tǒng)
Abstract: Currently combining scheduling attributes with control performance optimization is a difficult issue. Developed by Lund institute, the toolbox Jitterbug allows the user to setup a
platform analyzing the induced delay of networked control system by using a quadratic
performance criterion. The tool can also evaluate the stationary behavior of a linear system under various timing conditions. Based on the internal model of Jitterbug and its certain scheduling attributes with the quadratic cost function for a class of networked control system, we have derived the delay requirements of real-time closed loop control system and proceeded with analysis of delay compensation.
Keywords: Jitterbug; Predict analysis; cost function; delay compensation; NCS