Highland, IL, United States
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Schaefer R.C.,Basler Electrical Company
IEEE Conference Record of Annual Pulp and Paper Industry Technical Conference | Year: 2016

This paper presents a review of power-system synchronization, proper sync-check coordination, and fast synchronization methods. © 2016 IEEE.


Ransom D.L.,Basler Electrical Company
IEEE Transactions on Industry Applications | Year: 2013

Standby generation systems in low- and medium-voltage applications connect to the utility power system in a number of different ways. Typically, an automatic transfer switch is a part of most power system connections. Engineers can choose three- or four-pole transfer switches for the intertie point. The application's sensitivity to a power interruption during switching helps determine transfer-switch selection. The transfer switch can be contactor or circuit breaker based, or it can be a bypass design. At medium voltage, special requirements must be considered. Ultimately, the correct arrangement must be chosen depending upon grounding locations and neutral bonding. Incorrect power system bonding and grounding can cause unwanted transients or hazardous multiple grounds (improper ground-fault protection) depending upon the transfer-switch selection. Improper design can create unintentional current paths and defeat ground-fault protection. A transfer switch must be chosen for robust operation and maintenance at the beginning of the design process. © 2013 IEEE.


Ransom D.L.,Basler Electrical Company
IEEE Industry Applications Magazine | Year: 2014

There are many advantages to upgrading old electromechanical (EM), solid-state, and first-generation numeric relays with modern numeric relays. Reliability increases because there is less direct wiring and interconnec-tion wiring, and the reliability and security of multifunction logic and settings are improved with the next-generation user interface software. Remote input-output modules, remote analog/digital inputs, and thermal measurement capabilities have expanded protection, control, and monitoring. New pro-tection and monitoring features improve power system equipment life and increase personnel safety. Maintenance costs are reduced, while internal watchdogs alert the user if the relay has a problem. Settings groups can be changed instantaneously to adapt to varying power-system require-ments. Modern second-generation numeric relays offer a vari-ety of secure communications capabilities for interfacing with smart-grid controls, supervisory control and data-acquisition systems, and business networks. Event memory is larger for more onboard, standardized oscillographs and event reporting. Relay security is in accord with the latest North American Electric Reliability Corporation (NERC) standards. © 2014 IEEE.


Ransom D.L.,Basler Electrical Company
2014 67th Annual Conference for Protective Relay Engineers, CPRE 2014 | Year: 2014

This paper presents a review of powersystem synchronization. When two sources are paralleled, it is crucial to close the interconnecting circuit breaker when both sources are in voltage, frequency, and phase coincidence. © 2014 IEEE.


Kim K.,Basler Electrical Company | Rao P.,Basler Electrical Company | Burnworth J.A.,Basler Electrical Company
IEEE Transactions on Industry Applications | Year: 2010

This paper proposes an indirect method for self-tuning of the proportional, integral, and derivative (PID) controller gains. Some of the modern voltage regulator systems are utilizing PID control for stabilization. Based on given excitation system parameters, several PID tuning approaches are reported. Since in general, these parameters are not available during commissioning, specifically the machine time constants, this lack of information causes a considerable time delay and cost of fuel usage for commissioning the automatic voltage regulator (AVR). To reduce the commissioning time and cost, the excitation system parameters are automatically identified and the PID gains are calculated using well-developed algorithms. Recursive least-square (RLS) with linearization via feedback is proposed to identify the system parameters. The performance of the proposed method is evaluated with several generator sets. With self-tuned PID gains, commissioning is accomplished very quickly with excellent performance results. © 2010 IEEE.


A method, system and computer software for providing a load anticipation feature for a diesel generating set including a diesel engine, a generator, a speed governor, and an automatic voltage regulator generator in a power system and computer data processor apparatus and computer executable instructions for ascertaining an equivalent linear speed control system whose response approximately matches the non-linear speed response of the diesel generating set; ascertaining at least one programmable parameter of the load anticipation feature based on a real power load applied to the diesel generating set and a desired speed response of the linear speed control system; generating a control output based on a measured real power load and at least one programmable parameter of the load anticipation feature; the speed governor receiving the control output and adjusting the speed of the diesel engine based on the control output.


Trademark
Basler Electrical Company | Date: 2014-01-08

Magnetic components, namely, transformers, electrical reactors, electrical chokes, electrical filters and electric coils; circuit boards, power supplies; generator set controls, namely, generator voltage regulators, digital excitation controllers for electrical generators, generator exciter voltage/current regulators, electrical series boost option assemblies for fault current support of a generator, manual voltage control assemblies for manually controlling generator excitation current/voltage and underfrequency overvoltage assemblies for protection of a generator; electric protective relays, namely, multifunction digital protective relays, reverse power relays, synchronous motor pullout relays, voltage relays, protection systems, negative sequence relays, loss of excitation relays, directional phase and ground overcurrent relays, reclosing relays, frequency relays, differential relays and overcurrent protective relays, automatic synchronizers for connecting generators in parallel to other generators or the utility grid; electric motor speed controls for constant and variable speed motors; battery chargers; electric generator controls, static power assemblies for converting AC voltage/current to DC voltage/current and uninterrupted power assemblies; and electrical assemblies in the nature of electrical components and electrical subassemblies mounted in a pan chassis or excitation systems in cubicles. and electrical subassemblies in the nature of circuit board assemblies, circuit boards, electrical voltage regulator accessories in the nature of power isolation transformers, excitation limiters and VAR/power factor controllers, and power modules, transformer rectifier assemblies for use in excitation systems, control assemblies in the nature of electronic controllers for use in excitation systems including manual voltage controllers for electrical generators, power factor and kw controllers, including electrical/electronic sensors, heat sink assemblies for use in excitation systems and static variable voltage assemblies for use in excitation systems; electronic controllers for industrial engines to control power units that utilize reciprocating engines; power inverters; computer software for the configuration and monitoring of protective relays and excitation control, protection, multifunction meter and power system stabilizer systems, generator set controls and digital voltage regulators; computer software for the display, analysis and management of transient data from electric power systems.


Patent
Basler Electrical Company | Date: 2014-10-20

A method, system and computer software for detecting an incipient failure of a generator in a power system including the steps of ascertaining one or more generator reference parameter of the generator for use as a baseline reference; measuring one or more operating parameter values of the generator; using the one or more operating parameter values to solve for an estimated present value of the one or more of the generators current performance parameters using particle swarm optimization technique; and determining whether the estimated present values of the one or more of the generators current performance parameters are outside of an acceptable limit.


A method, system and computer software for providing a load anticipation feature for a diesel generating set including a diesel engine, a generator, a speed governor, and an automatic voltage regulator generator in a power system and computer data processor apparatus and computer executable instructions for ascertaining an equivalent linear speed control system whose response approximately matches the non-linear speed response of the diesel generating set; ascertaining at least one programmable parameter of the load anticipation feature based on a real power load applied to the diesel generating set and a desired speed response of the linear speed control system; generating a control output based on a measured real power load and at least one programmable parameter of the load anticipation feature; the speed governor receiving the control output and adjusting the speed of the diesel engine based on the control output.


Patent
BASLER Electrical COMPANY | Date: 2011-11-07

A method, system and computer software for detecting an incipient failure of a generator in a power system including the steps of ascertaining one or more generator reference parameter of the generator for use as a baseline reference; measuring one or more operating parameter values of the generator; using the one or more operating parameter values to solve for an estimated present value of the one or more of the generators current performance parameters using particle swarm optimization technique; and determining whether the estimated present values of the one or more of the generators current performance parameters are outside of an acceptable limit.

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