identical to that for valves. Due to the severe competitive situation for pumps‚ its market price has reduced continuously‚ so that Wilkerson had to match the low price to maintain its market share and sales volume. (3) Flow controllers The biggest characteristic of flow controllers is customized‚ so that they required more components and more labor than the other two products‚ as well as more production runs and shipments. Due to variety of product and competitors’ overlooking‚ the price rise did not
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good load dynamics for the converter in both discontinuous and continuous conduction modes. The adaptive controller is implemented using two voltage sensors that read the input and the output voltages of the converter. The controller’s bandwidth is comparable to current mode control‚ without the need for an expensive current sensor‚ yet providing the noise immunity seen in voltage mode controllers. The intended input source was a fuel cell but in its absence a DC supply is utilized instead. The system
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Introduction Electric drive system is a vehicle that powered by electricity. Its popularity was quite supporting during the late 19th century and early 20th century. It is equipped with an electric motor and a controller. On the other hand‚ the hybrid car is a drive system which uses more than one power sources to drive the system‚ thus it runs with a battery powered electric motor and an internal combustion engine. In this report i will describe the features‚ operations and applications of both
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Hyderabad‚ India -500085; 2 Professor‚ Department of Electrical Engineering‚ Jawaharlal Nehru Technological University‚ Hyderabad‚ India -500085; E-mail: 1das_tulasiram@yahoo.co.in‚ 2tarasunder98@yahoo.co.in ABSTRACT The Unified Power Flow Controller (UPFC) is the most versatile and complex power electronic equipment that has emerged for the control and optimization of power flow in electrical power transmission system. This paper presents real and reactive power flow control through a transmission
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BASI C OPERATI ON The typical AMB system diagram is illustrated in above figure. Besides the controller‚ the general control system also includes the sensor‚ A/D and D/A conversion and power amplifier. tected by the position sensors and converted into signals of standard voltage. Then compared with the setting value‚ the error signal enters the controller. After A/D conversion‚ the controller processes this digital signal according to a given regulating rule (control arithmetic) and generates
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The Proportional Integral Derivate (PID) unit is the software core of most flight controllers. Its purpose is to minimize the error of a system by adjusting the process through the use of manipulated variables. The first PID controller was introduced as early as in 1939. As of yet‚ it is still the prevalent controller in process control [33][34][35]. Figure 9 shows the underlying control loop. Figure 9: Block diagram of a basic PID control loop. At first‚ the difference between the desired set point
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Competence The controller should maintain an appropriate level of his professional expertise by continually developing knowledge and skills. The controller should perform duties in accordance with relevant laws‚ regulations and technical standards. The controller should prepare accurate and clear reports after analysis of relevant and reliable information. Intergrity The controller should avoid conflict of interest by regularly communicate with business associates. The controller should avoid
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design‚ and interface and control. The plan is to find out which system will come out on top. Kinect is a gaming system that uses a camera and built-in microphone to map players in 3D.The most a gamer have to do is walk‚ wave‚ and talk with no controllers. There is one part of this set up and they are done. The gamer does not need to buy any extra equipment to buy or keep charged. They now even have a mount for the TVs that can be mounted on the wall that you could sit the Kinect on. The PlayStation
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accounting records. First‚ the assistant controller must evaluate their position and duties within the organization by following the principles of control. The establishment of responsibility in this case is Lisa Lucena‚ the assistant controller that is in charge of the general ledger accounting at Riverside Company‚ and Gena Schmitt‚ the financial vice president. As a result of any decision made by the assistant controller‚ will affect the assistant controller Lisa but not necessarily affect Gena Schmitt
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competitors had been reducing prices on one of the company’s main product line pumps. The president of Wilkerson Company Robert Parker was discussing operating results of the previous month with controller and manufacturing manager. The product lines for the Wilkerson are pumps‚ valves and flow controllers. Pump is the major product line for Wilkerson. The company is forced to reduce its price of pumps as its competitors are lowering the price. Since they wanted to maintain the sales volume they
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