Application of Emerson UPS Power Management Solution in the Construction of Digital Cable Television System

First, the traditional UPS power supply and environmental construction program need to meet higher demand In the current critical period of the digitalization and industrialization transformation of the broadcasting and TV industry, the new technology mode and business model of the broadcasting and television industry put forward higher requirements for the stable operation and safety protection of the system. It also puts forward more requirements and new challenges for the foundation of all business and application - power supply and environmental system construction. The outstanding performance of this is the demand for the construction of cable digital television systems.

The digital TV center (or IDC) room business is currently booming, and the reliability, security, and maintainability of its power management solution needs to be greatly improved. The load in the computer room is mainly the load of various computers, servers, disk arrays, and the like. At present, the construction of AC uninterruptible power system (UPS) in the construction of digital TV systems faces the following problems:

1) The layout of the UPS presents a decentralized power supply situation, and the AC power equipment at the later stage does not concentrate;

2) The power supply scheme of the UPS system is not reasonable.

3) There are many kinds of UPS, in addition to mainstream manufacturers, there are many small manufacturers of products, good and bad.

4) The input and output system configurations of the UPS are not completely reasonable.

5) The use and maintenance of the UPS is not ideal due to various reasons.

Emerson's Power Supply Solution Analysis for Digital TV System Based on the world's top technology advantages, Emerson Network Power Co., Ltd. provides a full range of digital television system UPS power supply solutions for users in the broadcasting industry, making the solution more user-friendly. The entire UPS power supply system is more reliable, safer and easier to maintain.

The following is a plan analysis of several specific digital TV rooms:

1) The deployment plan for a radio and television system digital TV center in Guizhou:

Solution resolution:

The radio and television information network company is the largest specialized broadcast and television information network company in the region. The overall digital-television translation front-end room is located on the 15th floor of the Radio and Television Building and has a construction area of ​​approximately 600 square meters. The role of the UPS power supply system in the engine room is crucial.

The UPS power supply provides uninterrupted power to major computer equipment. This solution uses two Emerson UL33 series 40kUPS parallel operation to form a 1+1 redundant parallel system that is widely used in the industry, and the reliability is 5.5 times that of a single machine.

Analysis of program points:

In today's major uninterrupted power supply systems such as broadcasting and television systems, in order to ensure that important loads will not be interrupted due to failures of UPS, batteries, internal module systems, etc., under the current technological conditions, "N+1" is adopted. The UPS redundant parallel power supply system is the best power supply solution to eliminate these faults. It is to ensure that the inverter output power of each UPS stand-alone unit is in the same amplitude, same frequency, and the same phase (the “circular flow” between various UPS stand-alone units is equal to zero), and the “N+1” station has The output of the UPS stand-alone with the same output power is placed in the parallel output state to operate the power supply system. This advanced parallel solution is much better than UPS's stand-alone operation and hot backup operation.

The high reliability of the N+1 redundant parallel power supply system is reflected in the following aspects:

1. Ensure that when one UPS fails, it can still provide uninterrupted, highly reliable power to all loads.

2. The redundant parallel system brings about a significant increase in the reliability of the power consumption of the load, and makes the reliability of power supply of such loads reach 99.999% or even higher.

3. As the customer's business grows and expands the capacity of the load device, it only needs to expand the capacity of the existing parallel system, instead of creating a new set of UPS power supply system, thus saving customers the corresponding cost, and still Maintain the high reliability of the power supply system.

2) A radio and television system information room configuration plan in Hangzhou:

III. Solution Summary Adopting the N+1 redundant parallel system in the construction of the digital television system for broadcasting and television systems can bring high reliability power supply systems to customers. Therefore, the key points and recommended indicators in the parallel connection scheme are as follows:

1. Decentralized and direct parallel connection: The UPS can be directly connected in parallel without additional cabinets. It has built-in automatic bypass and maintenance bypass. Save user room space, reduce purchase costs, and facilitate future expansion.

2. It is required to have a high standard of accuracy of parallel flow sharing so that the load imbalance degree of each UPS is <2%, and circulation is <1A.

3, parallel signal bus must be ring-type connection, simple and reliable, automatic redundancy.

4. Each UPS can automatically coordinate with each other, users do not need to pay attention to the boot sequence; the system can automatically recover after the overload is transferred to bypass; even if a certain UPS fails to run, the remaining UPS can still operate stably.

5. The monitoring software is especially suitable for Chinese customer applications. The recommendations are all Chinese-language windows. The free-to-use intelligent monitoring software can directly connect all UPSs.

With the rapid development of the broadcasting and TV industry, we have reason to believe that the UPS power supply system will also provide a strong power supply guarantee for the broadcasting and TV industry with higher quality power supplies and higher reliability solutions.

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