Generation interconnection system impact studies in quick time through the automation of a series of repetitive, time-consuming and error-prone verifications. It performs a comprehensive system impact study that integrates several criteria-based verifications and multiple scenarios in order to flag abnormal conditions.
The acceleration of distributed energy resources (DER) deployment imposes new challenges to electric distribution utilities. Handling the volume of interconnection applications and assessing the effects of each new installation on the distribution system require dedicated resources and tools. Whenever a DER application fails the streamlined interconnection process, an engineer is required to carry further technical analysis to determine if any adverse effects exist and, in such case, decide on the appropriate mitigations. With the objective of speeding up the interconnection process, the CYME DER Impact Evaluation module automatically performs a comprehensive system impact study that integrates several criteria-based verifications and multiple scenarios in order to flag abnormal conditions.
Relying on a simplified or detailed model of the installation, the module allows the creation of various study cases by combining system loading conditions (e.g. peak and minimum load) with minimum and maximum DER contributions (e.g. 0 and 100%), all defined as simulation parameters. Controlled load flow analyses are then executed on each scenario to assess the impacts on the system in terms of steady-state voltage, transient voltage variations (flicker), thermal overloads and reverse power flow.
Study the impact of irradiance variations, wind fluctuations and load variations on network controls.
The CYME Long-Term Dynamics Analysis module offers a time-series simulation tool to study the impact of irradiance variations, wind fluctuations and load variations on network controls such as regulators, load tap changers and switched capacitors, and on the behavior of battery energy storage devices.
The intermittency of wind and cloud-over periods alters the output of wind energy systems and photovoltaic (PV) generation. By analyzing the impact of such variations on regulators, load tap changers and capacitor switching, the Long-Term Dynamics Analysis allows power engineers to properly assess the impact of DER integration and to better understand related technical issues such as var control and voltage regulation.
The module also allows the study of reserve capability of any battery energy storage device.
A curve library is included in the CYME software to allow the user to create their own long-term dynamics curve models along with generation curve models and motor curve models. It uses the following curves:
Determine the hosting capacity of your distribution system considering power quality and reliability
The global trend for cleaner power, supported by the arrival of new technologies such as solar and wind farms as well as affordable rooftop photovoltaic panels, has changed the distribution system landscape. The ever-increasing volume of distributed energy resources (DER) interconnection requests creates a need for new innovative engineering tools. The CYME Integration Capacity Analysis module allows performing an assessment of the generation or load hosting capacity of a distribution system without compromising its reliability and power quality.
The CYME Integration Capacity Analysis module comes in handy to efficiently and consistently calculate the maximum generation or load capacity that can be installed independently at each point of a distribution system without adversely impacting its reliability and power quality. This productivity tool saves labor time by allowing engineers to run simulations without the use of manual tools.
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