基本释义:

PI代数

网络释义

1)algebra with polynomial identities,PI-algebra,PI代数

2)PI-algebra,PI-代数

3)graded PI-algebras,分次PI-代数

4)affine PI algebra,仿射PI代数

5)PI database,PI数据库

6)PI parameters,PI参数

用法和例句

Some characterisations of graded artin simple rings and the conditions for graded artin simple rings to be artin simple rings are obtained, The definition of graded PI-algebras and the graded version of kaplansky theorem on PI-theory are given.

定义并讨论了分次PI-代数，给出了Kaplansky定理的分次形式。

Report form solution of SIS based on PI database;

基于PI数据库的SIS报表解决方案

Development of PI database-based on-line monitor and alarm systems for interface power flow

基于PI数据库的断面潮流在线监测及告警系统的实现

The overall structure,construction goal and basic functions of WAMS based on PI database in Chongqing Power Grid were introduced.

介绍了重庆电网基于PI数据库的实时动态监测系统(WAMS)的总体结构、建设目标和基本功能。

A systemized optimization method for PI parameters of HVDC controller is proposed.

首先根据Bode图求出满足系统稳定性要求的PI参数范围;再对该参数范围按一定步长进行划分,得到有限组PI参数以构成PI参数寻优的样本集;对应每一个样本参数仿真计算控制器的阶跃响应, 并按时间乘绝对误差积分(integral of time multiplied by the absolute value of error,ITAE)准则计算目标函数值;取对应 ITAE目标函数值最小的样本参数为最优PI参数。

The system not only improve the high-frequency switching problem brought by conventional hysteresis control strategy,but also adopts load current feed-forward control to make the system has much lower dependence on the PI parameters of the outer voltage regulator than conventional hysteresis current control PWM rectifiers.

该系统不仅改进了传统滞环控制策略带来的高开关频率的问题,更引入了负载电流前馈控制,使得系统对于外环的PI参数有着较传统滞环PWM整流器更低的依赖性,在三相电网不平衡的条件下也表现更好的运行特性。

Research on the Supervisory Informaiton System Based on PI Database;

基于PI数据库的SIS系统的研究

Application of PI system in Hydropower Plant

PI数据库系统在水电厂的应用分析

Producing Information Data Integration and Supervisory Platform Design for SIS Based of PI Database;

基于PI数据库的SIS系统的生产信息数据集成及监控平台的设计

Design and Development of Power Supply Enterprise Real-time Data Center System Based on PI Database

基于PI数据库的供电企业实时数据中心的设计与实现

Development of PI database-based on-line monitor and alarm systems for interface power flow

基于PI数据库的断面潮流在线监测及告警系统的实现

Application of Real-time Database PI in Enterprise MES System

实时数据库PI在企业MES系统中的应用

The Application of PI Real-Time Database for Power Enterprises Informatization;

PI实时数据库在发电企业信息化中的应用

Study of the Fault Diagnosis in Power Plant Based on PI Real-time Database;

基于PI实时数据库的电厂故障诊断系统研究

Research on Mutual Model Based on PI Real-time Database and Matlab

PI实时数据库与Matlab交互式开发模型研究

An industrially relatively well proven PI real-time database was chosen to serve as the supporting platform of Zhuzhou Power Plant′s SIS system, and has now been put into commercial operation following on-site acceptance tests.

株州电厂选用了工业上应用比较成熟的PI实时数据库系统作为该厂SIS系统的支撑平台。

A Study of Communication Substation for Integrating Substation Data into PI System;

厂站数据接入PI系统通信子站的研究

Base de donnees regionales maritimes BDRM

区域海洋数据库(数据库)

Design and implementation of SCADA data filtering software based on PI API

基于PI API的SCADA数据滤波软件的设计与实现

PI-based Real-time Data Analysis System in Coal Chemical Enterprises

煤化工企业中基于PI的实时数据分析器

Internet Archives DatabaseIAD

Ｉｎｔｅｒｎｅｔ档案数据库

Database management in the platform of LabWindows/CVI

LabWindows/CVI数据库管理

The Database Wizard cannot create the table in the this database.

“数据库向导”无法在此数据库中创建表。

Displays the current database in the Database Designer

在数据库设计器中显示当前数据库