ENERGOECONOMICS OF ELECTRICAL DRIVES FOR WASTE WATER AERATION UNITS

DAIRY WASTE TREATMENT by aeration

Combination of advanced aeration system and membrane bioreactor for winery waste water treatment

Membrane bioreactor has been used on winery waste water to overcome difficulties that are typically met in this environment with traditional biological treatment: poor sludge settling, bulking related to high sugar concentration and variable load. This paper reports about an innovative approach to membrane filtration used in combination with injector aeration to make membrane bioreactor best su...

Electrical Drives for Crane Application

A crane is the type of machine mainly used for handling heavy loads in different industry branches: metallurgy, paper and cement industry. By the construction, cranes are divided into the overhead and gantry cranes. An overhead crane, also known as a bridge crane, is a type of crane where the hook and line mechanism runs along a horizontal beam that itself travels on the two widely separated ra...

Control of Electrical Machines for Drives

Electric drive systems are one of the most important components of our life; billions of them are used in industry, traffic applications and private environment. In the recent past an accelerated development of controlled drive systems could be experienced. The scientific and technical background of today’s most important drive systems, the converter controlled DC-drives and the vector controll...

Electrical Drives Juha Pyrhönen

9. PERMANENT MAGNET SYNCHRONOUS MACHINE (PMSM) ......................................... 1 9.1 PMSM Configurations and Machine Parameters ................................................................ 2 9.2 Equivalent Circuit and Vector Diagram of a PMSM ........................................................... 8 9.3 Current Vector Control ......................................................