The Intelligent Power SystemTM retains the basic power conditioning, isolation and glitch protection features of the Roesel Motor GeneratorTM while adding an integral engine for utility outage protection. This approach allows Meridium Power Inc. to provide customers with a complete power protection package in a single compact footprint, an industry first.

Single Footprint Design

The installation of power protection systems is often complicated by the numerous components that must be interconnected to provide a complete solution. The integration of conventional UPS power conversion units, with battery strings, transfer switches and standby power plants adds considerable work and expense to power protection projects.

The integrated design of the Intelligent Power SystemTM incorporates all aspects of power protection into one footprint, reducing the need for space, interconnecting electrical distribution and transfer switches. This feature is of particular importance when providing power protection solutions for remote applications where an on-board fuel supply for the standby engine can be incorporated into the system.

Improved Starting Reliability

The Intelligent Power SystemTM is designed to eliminate the need for batteries in every aspect of power protection, improving starting reliability and decreasing the probability of unplanned outages.

The system utilizes the motor generator's integral flywheel to crank the standby engine instead of common lead-acid batteries. Since 70 - 80% of all standby failures can be attributed to a faulty cranking battery, typically related to an inadequate or faulty charging system, eliminating this dependency allows Meridium Power Inc. to eradicate a significant failure mechanism in standby power plants while simultaneously decreasing maintenance requirements.

The enhanced glitch protection provided by the Written-Pole generator allows the onset of engine cranking to be delayed for several seconds dramatically reducing the frequency of nuisance starts, reducing wear and tear on the engine prolonging engine life. Since frequency and voltage regulation can be maintained over a much greater speed range than more conventional motor generator concepts, a more gradual starting ramp can be used further reducing engine stress under starting, enhancing reliability and longevity of the standby engine.

Since the actual transfer of input power from the standby engine is completely isolated from the critical load by the Written-Pole generator, there is no need for transfer switches or other related accessories to facilitate the supply power transition. The integrated design of the Intelligent Power SystemTM simplifies transfer power to a standby source, while reducing the number of components needed to facilitate the transfer. The enhanced functionality offered by this design allows facility operators to conduct loaded tests of the standby engine without endangering operation of critical loads, verifying standby performance prior to critical situations.

Reduced Infrastructure Requirements

The multi-footprint configuration of conventional power protection systems necessitates a significant investment in interconnecting electrical distribution, including wiring, disconnects, breakers and transfer switches. The lead-acid, valve-regulated batteries common to larger systems require a clean, ventilated, air-conditioned environment to ensure battery life and performance. UPS electronics common to all battery-based systems and most inertia-based systems generate a significant amount of heat, which must be removed to ensure reliable performance.

The integrated design of the Intelligent Power SystemTM offers significant advantages in these areas, reducing infrastructure costs and simplifying installation requirements. Since the Intelligent Power SystemTM can be cooled with ambient air, no additional air conditioning equipment is required. Eliminating the requirement for batteries further reduces the cooling and ventilation requirement saving additional infrastructure and operating costs, while enhancing performance. The interconnecting distribution components eliminated through the use of the Intelligent Power SystemTM further simplify installation and maintenance requirements.

Optional Configurations

    The Intelligent Power SystemTM may be configured with several options that provide additional value in many installations.

    Auxiliary Power Source

    The Intelligent Power SystemTM is capable of providing a secondary power source for electrical loads such as air-conditioning, emergency lighting and facility ventilation, which are not significantly affected by momentary power interruptions. This is accomplished by using the Written-Pole drive-motor as a secondary generator when input utility supply has failed and the integral standby engine is driving the motor generator allowing for transfer of non-critical equipment to this source.

    Peak Demand Shaving

    Many utility rate structures impose severe penalties on customers with high peak demand loads. Using the standby engine to power the Intelligent Power SystemTM during peak demand periods isolates the critical load from the utility service reducing the peak billing demand and associated utility penalties.

    Operation of the standby engine during peak demand periods can also be used to verify engine performance and starting, ensuring reliable operation in the event of a utility outage.

    Distributed Generation Source

    High time-of-day rates imposed by some electric utilities, along with the capital costs necessary to expand distribution for peak loads, may make distributed generation a viable alternative. The Intelligent Power SystemTM is capable of being configured as an on-line distribution generation source without sacrificing its power protection characteristics.

    This feature may be of particular value in remote installations where the time required to procure a utility service may cause unnecessary and costly delays in the start-up of revenue generating facilities.

    The additional functionality available with the auxiliary power, peak demand and distributed generation options allow the Intelligent Power SystemTM to serve as an integral part of a distribution system, enhancing quality of service while reducing overall operating costs.