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Maximum power point tracking algorithm for photovoltaic power generation

Jun , 22 2024

1. Introduction Photovoltaic power generation is a technology that uses solar energy to convert light energy into electricity. In the photovoltaic power generation system, in order to obtain the maximum power generation power, it is necessary to track the change of solar radiation intensity in real time, and adjust the working state of the photovoltaic module to keep near the maximum power point. ...

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Advantages and disadvantages of constant voltage and current power supply

Jul , 06 2024

The advantages of constant voltage and current power supply include flexibility, stability, protection function, adjustability, and high efficiency, while the disadvantages mainly include high cost, large volume, thermal management requirements, and response time. 1. Advantages: a. Flexibility: A constant voltage and current power supply can provide stable current or voltage output as needed, suit...

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Explanation of terms related to UPS power supply

Jul , 06 2024

Transient Recovery Time: The time it takes for the output voltage to return to the specified range when there is a sudden change in load (0‐100%, 100%‐0), usually on the order of seconds (ms). Filter: a device used to eliminate noise, the input or output filtered to obtain a pure contention of the alternating current. Shielding: The use of physical principles, used to isolate the electromagnetic r...

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Classification of DC Power Supplies

Mar , 01 2025

DC regulated power supply classification methods, according to the type of output power supply DC regulated power supply and AC regulated power supply; according to the connection between the regulated circuit and the load DC regulated power supply series regulated power supply and parallel regulated power supply; according to the operating state of the adjustment tube is divided into linear regul...

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Difference between kVA and kw

Mar , 15 2025

kVA is the unit of apparent power and kw is the unit of active power. In alternating current, apparent power does not indicate the actual power consumed in the circuit, but rather the maximum power that can be supplied or the maximum active power consumed in an alternating current circuit. In the case of active power, it is the power needed to enable the equipment to work properly, such as the ele...

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What Is UPS Input Power Factor and Why It Matters

Apr , 12 2025

Power factor (pf) is the difference between the actual energy consumed in an AC circuit and the apparent power. It will be calculated as a decimal or percentage between 0-1 pf and 0-100%, i.e. 0.9 pF=90%. Meaning of UPS power factor UPS input power factor UPS input power factor is the ratio of UPS input active power to input power. UPS is not only a part of the power supply, but also the load of t...

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An Overview of HV Substation Equipment — with Integration of High-Current DC Charging Systems

May , 24 2025

Each operating device in a high-voltage substation serves a vital role. Their shapes and sizes vary depending on their location and purpose, but together they ensure safe, stable, and efficient operation of the entire installation. 1. Switchgear: The Functional Core of a Substation Switchgear consists of various components like circuit breakers, disconnectors, earthing switches, and instrument tra...

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Understanding Instantaneous Load and Charger Capacity Calculation in Substations

Jun , 07 2025

In modern substations, accurate power system design requires a clear understanding of instantaneous (transient) loads and how they impact equipment sizing, particularly for battery chargers in DC systems. This article breaks down the concept of transient loads, their implications, and how to properly calculate charger capacity under such conditions. 1. What Is an Instantaneous (Transient) Load? A ...

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8 tips to avoid ground loops when dealing with signal level circuits

Jun , 27 2025

Ground loops and signal noise General recommendation is to properly design and implement the facility's grounding system to avoid unwanted involvement of ground loops with the operation of the equipment. This kind of approach can also eliminate the need to consider equipment modifications and to engage in costly diagnostic efforts since most trouble involving common-mode noise is avoided in the si...

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Protecting Digital Substations in a Hostile World: How EverExceed Supports Intelligent Electronics (IEDs)

Jul , 19 2025

In today’s power systems, digital substations have revolutionized control and monitoring with their intelligent electronic devices (IEDs). However, these advanced infrastructures are not immune to threats. In fact, their complexity and sensitivity demand a new level of protection—and that’s where EverExceed comes in. Understanding the Threats to Digital Substations Whether built from the ground up...

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Understanding Compact Substations: Structure, Components, and EverExceed’s Smart Solutions

Aug , 16 2025

1. Growing Demand for Power – The Role of Substations In today’s rapidly developing world, electricity demand is increasing at an unprecedented pace. Power generation plants — whether hydroelectric, thermal, or nuclear — are often located far from the main load centers due to geographical and resource constraints. To ensure reliable energy delivery, high-voltage transmission networks carry electri...

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Three Steps to EMI Rectification

Aug , 22 2025

Three Steps to EMI Rectification: From Locating Interference Sources to System-Level Noise Reduction Strategies In power system design, EMI problems are like an invisible electromagnetic storm, which can interfere with the normal operation of equipment if you are not careful. For EMI technicians, the rectification process is not only a technical task, but also a game with electromagnetic waves. To...

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