Friday, 19 June 2015

Choice of UPS power systems



The importance of UPS power for data centers cannot be emphasized more. When most businesses rely on online connectivity these days, the servers, software and hardware’s central location is the data centers, which requires uninterrupted power supply. The traditional UPS systems have used a double conversion system where they take on alternating current and change it back to direct current. This charges the batteries and re converts the current back to AC. The traditional UPS systems use large modules in order to create systems of high capacity. 

Today the trend is moving towards modular UPS. These consist of smaller modules that make up the larger system of UPS. There are distinct advantages and disadvantages of the modular approach. The main advantage for which the modular approach has become popular is that the growth capacity can be adjusted as per requirement. Indeed, every data center has a varying requirement for power and usually, with time, the need for power supply increases. The modular approach reduces the cost of maintenance as well. There is also the matter of efficiency in the modular design of UPS. The UPS systems run at high efficiency when the maximum capacity is being utilized. Efficiency drops as the load level is reduced. 

Energy saving is a crucial concern for most data centers. Hence, the UPS systems need to run at optimal efficiency at all times in order to ensure optimal usage of power. The drop of efficiency does pose a concern for the data center administrators. As there is increasing stress on making the data centers energy efficient and eco friendly, choosing UPS systems that are unable to minimize the use of power can become a concern. Hence, one needs to weigh the different options available and accordingly they need to take the decision on the UPS system design that is optimal for the data center’s operations.

Benefits of online UPS



When we talk of UPS or uninterrupted power supply, we usually forget to state the condition of the system, whether offline or online. There is a difference between these two types of UPS technology. There is offline UPS technology that by passes the energy that is received from consumers. Here the AC input is connected with the consumers. If the connection is interrupted or the voltage is outside the acceptable power range, the inverter replaces the power supply. During normal electricity supply, the UPS tries to detect any distortion or interference that might occur between the input device and what is transmitted to the consumers.

When we talk of online UPS, we usually talk of UPS power where the inverter supplies hundred percent of the load requirement all the time. These UPS systems are regenerating the output all the time which is formed within the system. These systems lack the transfer switch that is usually activated when there is loss of alternating current from the main power supply. The backup power systems of this category are called online UPS systems. 

There are certain features of online UPS systems. There is no power interruption or transfer time lapse with these systems as the inverter supplies hundred percent of the load all the time. Hence, there is no switch over when a blackout occurs. When you have an online UPS system it supplies power that is conditioned and clean. That is because the UPS converts AC to DC and then back to AC. It generates an output that is done independently. There are several advantages for computer systems to be associated with UPS of this kind. The computer systems are protected from power fluctuations and other problems if they are connected to online UPS systems. The power conditioning and the protection offered is a uniqueness of these systems.

The use of solar inverter



The technology of an inverter has changed a lot from the time it was first invented. Today it is the era of the solar inverter. With the need to save electrical energy that is generated from fossil fuels, the alternative source of energy is being harnessed in different ways – solar energy. When we talk of solar inverters, these are basically the components that are found in the photo voltaic systems. The purpose or aim of using these inverters in the photovoltaic power systems is to transform the direct current that is found in the PV system into alternating current. This is then sent to a power grid or it is used to be consumed on a site. The inverters have versatile uses. These can be used in conjunction with battery systems or used directly in order to supply power to different kinds of devices that run on electricity.

The solar inverters tend to have certain identifying features. These are intended to be used in conjunction with PV arrays. They are often used with maximum power point tracking systems. Some inverters are used to tie up an array of PV with a power grid. These usually provide protection from the islanding feature. The photovoltaic panels generate energy or electricity from the solar radiation that they trap. This current is of the variable direct current category. This needs to be changed to the alternating current in order to power different devices as well as to power a home as well as a business. That is where the solar inverter units come in. There are many solar cell manufacturers who have harnessed the technology of making these inverters. There is more progress to be made in this technology in order to generate as well as to store the energy. Many people seek these inverters for their homes or business.