To conquer that disturbance, an optimal reactive power planning model is proposed to combine the reactive power support from SVC and distributed diesel units,and the optimal object is consist of power loss cost, SVC installation cost, reactive power production cost of diesel units.
In traditional monitoring system, a great deal of data from the sensors should be transmitted to the control center through conductor. It increases the installation cost, prolongs the installation periods and may reduce the reliability of the system.
It is an important contents in the user management to regain the charge and reduce installation cost in time, and It determines the economic benefits of a platform and self-development ability to a great extent.
The feedback control loops of NCS(Networked Control System) are closed through network,this is the primary feature of NCS in its structure. NCS has many merits such as low installation cost,easy maintenance and agility of network design.
Emphatically discuss the meshing-method about the complicated 3D model and the selection of the boundary conditions. Computing and analyzing the effect of heat-exchange about different air-cooled system, the scheme of air flow organization that need little installation cost and has higher heat exchange efficiency is obtained and it also offers some reference frame about the optimum air flow organization for heat convection in the complicated space.
With the gradual standardization of its competition , the real estate market has stepped from growth into maturity , which makes the cost accounting and controlling for the real estate enterprises more important . The author makes analysis as how to control cost from the aspects of land cost , designing cost , installation cost , scot , financing and sales management to the fellow companies for reference .
It can save the telephone rate, It also saves a large amount installation cost of the telephone network, circuit fee, maintenance cost and project fee, etc. It can shorten the project cycle of installing, raise the utilization ratio of networks resource of the computer, suitable for the national conditions of our country.
In this work, a comprehensive evaluation model was established using the fuzzy-mathematics method, taking the following factors into account: the installation cost and operating expense of the water chiller, environmental protection and control, floor area, operating weight, unit durability etc.
Nevertheless, 3G systems suffer the high installation cost and low bandwidth.
Based on an Integer Linear Programming (ILP) model, a network design tool, minimizing the total installation cost for optical network equipment on the metro and the Hybrid Fiber Coax (HFC) access network, has been developed.
Discrete capacities are considered and the cost function combines the installation cost with a measure of the Quality of Service (QoS) of the resulting network for a given traffic.
Minimum-length pipe configurations reduce pressure loss and installation cost.
This is because vibrators have a high production rate and therefore a low installation cost.