Example of papers/technical document authored by our experts
Cigre TB 909: Guidelines for Subsynchronous Oscillation Studies in Power Electronics Dominated Power Systems
Cigre TB 935: Interaction between nearby VSCHVDC converters, FACTs devices, HV power electronic devices and conventional AC equipment
Cigre TB 935: Interaction between nearby VSCHVDC converters, FACTs devices, HV power electronic devices and conventional AC equipment
This Technical Brochure offers guidelines for evaluating subsynchronous oscillations (SSO) in power systems. It introduces a new SSO classification addressing issues related to power electronic devices and outlines a systematic study approach, including initial screening, detailed analysis, mitigation techniques, and protection mechanism
This Technical Brochure offers guidelines for evaluating subsynchronous oscillations (SSO) in power systems. It introduces a new SSO classification addressing issues related to power electronic devices and outlines a systematic study approach, including initial screening, detailed analysis, mitigation techniques, and protection mechanisms. Additionally, it reviews industry practices and reported SSO cases in power systems.
Cigre TB 935: Interaction between nearby VSCHVDC converters, FACTs devices, HV power electronic devices and conventional AC equipment
Cigre TB 935: Interaction between nearby VSCHVDC converters, FACTs devices, HV power electronic devices and conventional AC equipment
Cigre TB 935: Interaction between nearby VSCHVDC converters, FACTs devices, HV power electronic devices and conventional AC equipment
This Technical Brochure addresses the interaction between VSC-HVDC converters and other power electronic or passive HV devices. It provides guidelines on identifying, classifying, analyzing, modeling, and mitigating these interactions. Key topics include analysis tools, study methodologies, study area selection, and practical considerati
This Technical Brochure addresses the interaction between VSC-HVDC converters and other power electronic or passive HV devices. It provides guidelines on identifying, classifying, analyzing, modeling, and mitigating these interactions. Key topics include analysis tools, study methodologies, study area selection, and practical considerations like confidentiality and model exchange between vendors. The document is organized into chapters, each covering specific aspects of these interactions.
IEEE Paper: Investigation on D-STATCOM and DVR operation for voltage control in distribution networks with a new control strategy
IEEE Paper: Investigation on D-STATCOM and DVR operation for voltage control in distribution networks with a new control strategy
IEEE Paper: Investigation on D-STATCOM and DVR operation for voltage control in distribution networks with a new control strategy
This paper focuses on modeling and analyzing custom power controllers, specifically power electronic devices designed to improve reliability and power quality in low-voltage distribution networks. It introduces a new PWM-based control scheme that relies solely on voltage measurements, eliminating the need for reactive power measurements.
This paper focuses on modeling and analyzing custom power controllers, specifically power electronic devices designed to improve reliability and power quality in low-voltage distribution networks. It introduces a new PWM-based control scheme that relies solely on voltage measurements, eliminating the need for reactive power measurements. The proposed control method is demonstrated for D-STATCOM and DVR through simulations in PSCAD/EMTDC. Results confirm the reliability and robustness of the control scheme in responding to voltage disturbances caused by system faults or load variations.
IPST Paper: Resonance Condition and Resultant Overvoltage Causing 400 kV Circuit Breaker Failure
IEEE Paper: Investigation on D-STATCOM and DVR operation for voltage control in distribution networks with a new control strategy
IEEE Paper: Investigation on D-STATCOM and DVR operation for voltage control in distribution networks with a new control strategy
A 400 kV circuit breaker was opened to de-energize an overhead line and shunt reactor simultaneously. This triggered a second circuit breaker in the disconnected network to trip and fail. Investigation using relay data and EMTP ATP simulations revealed that the operation excited a 50 Hz resonance, sustained by capacitive coupling with a
A 400 kV circuit breaker was opened to de-energize an overhead line and shunt reactor simultaneously. This triggered a second circuit breaker in the disconnected network to trip and fail. Investigation using relay data and EMTP ATP simulations revealed that the operation excited a 50 Hz resonance, sustained by capacitive coupling with a nearby live line. This caused temporary overvoltages, leading to the second breaker's overcurrent trip and eventual failure. The paper discusses practical measures to prevent such resonance and failures in the future.