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info@upspowersupply.net6 Major Trends in UPS Power Systems
Intelligent
Through the analysis and synthesis of various types of information, the intelligent system should complete the real-time monitoring of the running UPS in addition to the normal operation of the corresponding part of the UPS, and analyze and process the important data in the circuit. If some UPS fails, it can analyze according to the test result, diagnose the fault location, and give the treatment method; take necessary emergency protection control action according to the site needs in time to prevent malfunction The expansion of the influence surface; the completion of the necessary self-maintenance, the exchange of information functions, the ability to input data to or from the networked machine at any time.
Digitization
The UPS uses the latest digital signal controller to digitize the Hoer sensor to achieve 100% digital operation of the UPS system. A multi-processor redundant system is also used to control the rectifier, inverter, and internal static bypass with multiple microprocessors with independent power supplies, thus increasing the system's digitization and reliability.
High frequency
The power switches of the first generation UPS are thyristors, the second generation is high power transistors or FETs, and the third generation is insulated gate bipolar transistors. High-power transistors or FET switching speeds are an order of magnitude higher than thyristors, while insulated gate bipolar transistor power devices have much larger current capacity and speed than high-power transistors or FETs, making power conversion The circuit operates at frequencies up to 50 kHz. The increase of the frequency of the conversion circuit greatly reduces the inductance, capacitance, noise, volume, etc. used for filtering, and greatly improves the UPS efficiency, dynamic response characteristics, and control accuracy.
Redundant parallel technology
By developing new application technologies, multiple modules in the UPS can be redundantly operated in parallel, without the need to additionally add central control components, and the load is evenly divided. When a module has a problem, the load is automatically transferred, and the maintenance can be hot swapped. , greatly improve the reliability of the power supply of a single UPS.
Integration
With the development of informatization, the application areas of power protection are constantly expanding and the requirements are constantly improving. It is difficult for UPS to meet these requirements. It is necessary to control the links involved in the entire power system. The UPS is protected from initial equipment protection and system protection. Pure backup power technology has developed into today's information protection, intelligent management and integrated integration of the entire computer room. Its connotation has been extended to power generation, power distribution, conversion, uninterruptible power supply, computer room, power equipment, power cable, data wiring, environmental monitoring. And system management, etc., is not the original sense of UPS, UPS equipment is only the core components of the system.
Green
The harmonic currents generated by various electrical equipment and power supply devices seriously pollute the power grid. With the promulgation of various policies and regulations, the voice of non-polluting green power supply devices is getting higher and higher. In addition to the high-efficiency input filter, the UPS should also use power factor correction technology at the input end of the grid, which can eliminate the harmonic current generated by the rectifier filter circuit and compensate the input power factor.
Through the analysis and synthesis of various types of information, the intelligent system should complete the real-time monitoring of the running UPS in addition to the normal operation of the corresponding part of the UPS, and analyze and process the important data in the circuit. If some UPS fails, it can analyze according to the test result, diagnose the fault location, and give the treatment method; take necessary emergency protection control action according to the site needs in time to prevent malfunction The expansion of the influence surface; the completion of the necessary self-maintenance, the exchange of information functions, the ability to input data to or from the networked machine at any time.
Digitization
The UPS uses the latest digital signal controller to digitize the Hoer sensor to achieve 100% digital operation of the UPS system. A multi-processor redundant system is also used to control the rectifier, inverter, and internal static bypass with multiple microprocessors with independent power supplies, thus increasing the system's digitization and reliability.
High frequency
The power switches of the first generation UPS are thyristors, the second generation is high power transistors or FETs, and the third generation is insulated gate bipolar transistors. High-power transistors or FET switching speeds are an order of magnitude higher than thyristors, while insulated gate bipolar transistor power devices have much larger current capacity and speed than high-power transistors or FETs, making power conversion The circuit operates at frequencies up to 50 kHz. The increase of the frequency of the conversion circuit greatly reduces the inductance, capacitance, noise, volume, etc. used for filtering, and greatly improves the UPS efficiency, dynamic response characteristics, and control accuracy.
Redundant parallel technology
By developing new application technologies, multiple modules in the UPS can be redundantly operated in parallel, without the need to additionally add central control components, and the load is evenly divided. When a module has a problem, the load is automatically transferred, and the maintenance can be hot swapped. , greatly improve the reliability of the power supply of a single UPS.
Integration
With the development of informatization, the application areas of power protection are constantly expanding and the requirements are constantly improving. It is difficult for UPS to meet these requirements. It is necessary to control the links involved in the entire power system. The UPS is protected from initial equipment protection and system protection. Pure backup power technology has developed into today's information protection, intelligent management and integrated integration of the entire computer room. Its connotation has been extended to power generation, power distribution, conversion, uninterruptible power supply, computer room, power equipment, power cable, data wiring, environmental monitoring. And system management, etc., is not the original sense of UPS, UPS equipment is only the core components of the system.
Green
The harmonic currents generated by various electrical equipment and power supply devices seriously pollute the power grid. With the promulgation of various policies and regulations, the voice of non-polluting green power supply devices is getting higher and higher. In addition to the high-efficiency input filter, the UPS should also use power factor correction technology at the input end of the grid, which can eliminate the harmonic current generated by the rectifier filter circuit and compensate the input power factor.
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