When it comes to power systems, making sure that there is high-quality electrical power available is essential to the smooth operation of important infrastructure. Power quality is a complex concept, and harmonics are one important component that requires attention. Maintaining an effective and dependable power supply becomes more dependent on understanding and minimizing harmonics as utilities and industry work toward operational excellence. Leading global provider of electrification, Siemens, provides a reliable solution with its PSS SINCAL Core Modules, which are made especially for harmonic contingency (OB). This article discusses the possibilities of Siemens PSS SINCAL Core Modules, explores the specifics of harmonics, and highlights the role that these modules play in power quality optimization.

An Introduction to the Harmonic / Harmonic Contingency (OB)

Unwanted frequencies known as harmonics can appear in electrical systems and are usually the result of nonlinear loads such as power electronics, variable speed drives, and other electronic devices. A number of problems, including higher losses, decreased efficiency, and possibly equipment damage, can result from these harmonic aberrations.

A preventative strategy for handling harmonic problems in a power system is called Harmonic / Harmonic Contingency (OB). Assuring the general well-being and effectiveness of the power distribution network includes identifying, analyzing, and putting into practice ways to lessen the effects of harmonics.

The Landscape of Power Quality

Power quality refers to the characteristics of electrical power and its ability to operate electrical systems without disturbances. Harmonic / Harmonic Contingency (OB), in this context, are deviations from the standard sinusoidal waveform of voltage and current. These deviations, often caused by non-linear loads, can lead to a range of issues such as voltage distortion, equipment overheating, and operational inefficiencies. Addressing harmonics is crucial for industries where sensitive equipment, automation systems, and critical processes depend on a stable and high-quality power supply.

Siemens PSS SINCAL Core Modules

• Comprehensive Harmonic Analysis: Siemens PSS SINCAL Core Modules offer a comprehensive suite of tools for harmonic analysis. Siemens PSS SINCAL SIMULATION SOFTWARE includes the ability to simulate and analyze harmonic distortions in voltage and current waveforms. By understanding the harmonic profile of a power system, engineers can identify potential issues and design effective mitigation strategies.
• Harmonic / Harmonic Contingency (OB): The Harmonic / Harmonic Contingency (OB) module within Siemens PSS SINCAL SIMULATION SOFTWARE goes beyond analysis and enables engineers to assess the impact of harmonics on the power system. It simulates various scenarios, considering harmonic sources and their effects on equipment and network components. This proactive approach allows for the identification of vulnerabilities and the implementation of measures to mitigate harmonic-related risks.
• Efficient Network Planning: Siemens PSS SINCAL SIMULATION SOFTWARE contributes to efficient network planning by considering harmonic factors. This is particularly crucial in industries where the addition of non-linear loads, such as variable frequency drives and power electronic devices, can introduce Harmonic / Harmonic Contingency (OB). The modules assist in evaluating the impact of these loads on the overall power system and aid in designing networks that can accommodate such loads without compromising power quality.
• Mitigation Strategies: Understanding harmonics is only part of the solution; effective mitigation is equally essential. Siemens PSS SINCAL SIMULATION SOFTWARE allows engineers to test and evaluate different mitigation strategies, such as the addition of harmonic filters or the redesign of the power distribution system. By virtually implementing these strategies, engineers can optimize the power system to meet required harmonic standards.

Requirements and Use Cases

Observing the frequency-dependent behavior of devices and the resonance or damping of the harmonics created by certain devices is particularly helpful when planning and developing electrical networks:

• Identification and examination of the network’s frequency-dependent behavior as well as its resonance frequencies in the context of the current network state.
• To incorporate all network configurations in the analysis, the analysis can be automatically executed for a large (combinatoric) number of network states (switchovers, maintenance), or it can rely on all potential placements of controllable parts (e.g., capacitors).
• Adherence to legal mandates for voltage quality, including minimum and maximum allowable harmonics and voltage distortions in the network.
• Removal of visible harmonics in the lights (flicker).
• Protection of equipment (such as capacitors) from higher frequency voltages and currents that could cause damage or destruction.
• Choosing the vector group of transformers to suppress specific harmonics (e.g., YY0 and YY1) in a targeted manner.
• The arrangement and configuration of filters.
• Reduction of network areas (border networks) as resonance networks, taking into account the behavior that varies with frequency, as well as the tap positions and switching states of controllable elements (such as reconnecting filters).
• Integration of the observed behavior of subnetworks that the network model did not fully simulate.

Solution

The PSS®SINCAL module (OB) allows the user to calculate frequency responses in creative configurations for harmonic contingency calculations and harmonic distribution limit calculations, in addition to static network configurations. Moreover, filter design functionality is included.

• The network model is expanded to include frequency-dependent model behavior.
• Modeling resonance networks, both active and passive.
• Many choices for modeling emissions from harmonic sources.
• Frequency response calculations for static states and harmonic contingency calculations, or harmonic malfunction calculations: The voltage and current findings are evaluated concerning the limit values from IEEE 519 (TIF and IT), THFF and EDC, NY x UNY and NY x INY, and IEC 61000-2-4 class 1, 2, or 3 -AND- (2) Analyzing the voltage and current data concerning user-defined constraints.
• Gain levels over frequency, frequency response locus, impedance regions, and harmonic levels are graphically displayed in diagrams.
• Role in filter design for filter groups and resonance point detection.

Conclusion

In conclusion, Siemens PSS SINCAL Core Modules stand as a pioneering solution in the realm of power quality, specifically addressing the challenges posed by harmonics. The Harmonic / Harmonic Contingency (OB) module empowers engineers and planners to proactively assess, analyze, and mitigate the impact of harmonics on power systems.

As the demand for electrical power continues to grow, the importance of managing harmonics cannot be overstated. Siemens PSS SINCAL SIMULATION SOFTWARE not only provides a robust platform for harmonic analysis but also offers actionable insights for efficient network planning and mitigation strategies. 

In an era where power quality is synonymous with operational excellence, Siemens remains at the forefront, providing innovative solutions to navigate the complexities of harmonics and ensure a reliable and resilient power infrastructure.

Reliserv Solution is an authorized supplier of SIEMENS and a Platinum Channel Partner. Our company, which is the largest supplier and exporter of Siemens PSS SINCAL SIMULATION SOFTWARE, is based in Mumbai, Maharashtra. We also provide panel builders and other industries with a range of specialized services and solutions. Please contact us by phone at +917506112097 or by email at [email protected] if you need assistance or have any questions. To view our selection of Siemens PSS SINCAL SIMULATION SOFTWARE, please click here. Including the well-known Harmonics / Harmonic Contingency (OB) Siemens PSS SINCAL Core Modules.