An Improved Control Strategy for DFIG System and Dynamic Voltage Restorer under Grid Voltage Dip Peng Cheng‚ Heng Nian‚ Member‚ IEEE College of Electrical Engineering‚ Zhejiang University‚ Hangzhou‚ China cheng_peng@zju.edu.cn Abstract：With the increasing percentage of wind power in the utility grid‚ grid codes require that wind turbines must have low voltage ride through (LVRT) capability. Considering that doubly fed induction generation (DFIG) systems have the tolerance capability ‚ to
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company keeps its revenue‚ but the franchisees bearing some risks. Strengths of McDonald’s model The benefits and advantages of this model can be seen by some features that determined the success and excellence of execute model of franchise. The company’s stability during financial crisis and how it overcomes it. The rate of revenue stream from franchisees is going on to rises highly. The income oriented investors who are holding the stock as an offset for continues income investments and be away of loses
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Workplace Organisation 5 S’s WHAT IS 5S? • Developed by the Japanese • Workplace Organisation and Housekeeping System • Helps Create a Better Working Environment and a Consistently High Quality Process THE 5S PRINCIPLES • SEIRI – Organisation • SEITON – Orderliness • SEISO – The Act of Cleaning • SEIKETSU – The State of Cleanliness • SHITSUKE - The Practice of Discipline WHY DO IT? QUALITY EFFICIENCY 5S SAFETY ELIMINATING BREAKDOWNS EFFICIENCY • Time is wasted looking for tools‚ equipment
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How process control system help manages the plant operation? (Start from process raw material fed into the process to its final state of production.) Process control system must be installed to make sure that distillation column to operate well for achieving required production rates and product quality. Current application for distillation control is based on linear controller such as Proportional (P) and Proportional-Integral-Derivative type controller. Each column has a control system
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Marketing Ambu A/S The aim of this project is to prepare a decision base for Ambu’s international marketing strategy. Table of contents Problem background Problem issues Problem statement Delimitations Methodology Deciding which markets to entry/screening Screening Choice of a specific country The external environment PESTLE analysis Political factors: Economic factors: Socio-Cultural factors: Technological factors: Legal regulations: Environmental factors
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AT DELL COMPUTER CORPORATION Abstract Dell’s Portable Division‚ headed by Mark Holliday‚ had reached a decision point in the development of its new laptop computer. Holliday had to decide‚ or reach consensus on‚ what kind of battery Dell would put into its new line of laptop computers. It was the second try for Dell in the laptop market. The first attempt had failed due to technical problems‚ costing the company $20 million in development expenses alone. After the failed earlier attempt‚ Dell structured
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Assignment 1-3 Read and analyze the Private Fitness‚ Inc. case in Management Control Systems. Write a 2- to 3-page paper that addressing the following. Follow APA guidelines for citations and format for your paper. a. Summarizes the case and provide background information. b. Describes a solution to Rosemary Worth’s control problem that emphasizes: 1. Results controls 2. Action controls 3. Personnel/cultural controls c. Makes a recommendation. d. Explains why your
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anyone think about what is same sex school? Why any students want to go there? Both single sex school and co-ed school have advantages and disadvantages. If we were parents‚ we would think that which school is better to let children go. Some of them do not care about the issue‚ but it may happen some problems to their children. In other word‚ if parents think about it carefully‚ their children will be successful. Going to same sex schools have had several positive effects on students life: increasing
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s Case Study: Marks and Spencer Where now for an icon of British retailing? History and background Early history Marks and Spencer (M&S) was founded by Michael Marks and Thomas Spencer in 1884 - he called his business ’penny bazaars’ with signs reading "Don’t ask the price‚ it’s a penny" (the forerunner of stores like Poundland today?) The company went public in the 1920’s and by the 1970’s M&S had established itself as a British institution with locations in every major town and
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by opinions and estimates primarily utilized for long-range corporate strategies. The unique distinction between this method and the other three forecasting families is that those tend to be more quantitative in nature‚ relying heavily on the process of gathering and analyzing hard data. There are no formal mathematical models utilized in this forecasting family. For example‚ market research normally consists of a third party firm that primarily conducts surveys and interviews to determine product
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