در دنیای امروز، نیروگاه‌های خورشیدی فتوولتائیک با ذخیره‌سازی انرژی نقش کلیدی در تامین برق پایدار ایفا می‌کنند. ما راهکارهای نوآورانه‌ای برای ارتقاء کارایی و بهره‌وری پروژه‌های خورشیدی ارائه می‌دهیم.
Therefore, this article focuses on the characteristics of traditional adaptive current protection and adopts a new protection action criterion based on two-phase current difference adaptive …
در EK Solar، ما با تمرکز بر فناوری‌های پیشرفته خورشیدی و ذخیره‌سازی انرژی، به شما کمک می‌کنیم تا به استقلال انرژی کامل دست پیدا کنید. با تجربه‌ای بیش از ده سال در زمینه انرژی‌های تجدیدپذیر، راهکارهای ما برای مصارف خانگی و تجاری طراحی شده‌اند تا بهره‌وری شما را افزایش داده و هزینه‌های شما را کاهش دهند.
تیم متخصص ما با ارائه مشاوره حرفه‌ای، طراحی اختصاصی و نصب دقیق، شما را در هر مرحله از مسیر همراهی می‌کند. امروز به انقلاب انرژی خورشیدی بپیوندید و آینده‌ای پایدارتر برای خود و نسل‌های بعدی بسازید.
سیستم‌های ذخیره‌سازی انرژی خورشیدی ما تضمین می‌کنند که حتی در روزهای ابری یا هنگام قطع برق، انرژی مورد نیاز شما بدون وقفه تأمین شود.
با استفاده از سیستم‌های مقرون‌به‌صرفه ذخیره‌سازی خورشیدی، هزینه‌های قبض برق خود را به میزان قابل توجهی کاهش دهید و از انرژی پاک بهره‌مند شوید.
با روی آوردن به انرژی خورشیدی و ذخیره‌سازی برق، گام موثری در راستای حفاظت از محیط زیست بردارید و به کاهش آلاینده‌های کربنی کمک کنید.
The SFCL and a blocking capacitor help slow the fault current's increasing rate. The line current fully passes through the SFCL and the blocking capacitor. Assuming that at t = t 1, the line current is designated as I 1, the instantaneous value of the line current is obtained as in (4).
The size of the capacitor C affects the speed of fault separation when a fault occurs. The insertion of the blocking capacitor into the fault branch results in the charging of the capacitor by the fault current. As the capacitor current gradually diminishes to zero, the forward voltage Vc.max of the capacitor attains its utmost value.
The electric capacitor is used to stop the increase in fault current in the circuit and work to solve the short circuit problem in the line in a short time.
When the fault current it in the line reaches zero at time t = t 2, the capacitor voltage equals the source voltage, and IGCT 1 and IGCT 2 turn off normally. Below is a correspondence between the line capacitor voltage V c and the fault current it.
As the capacitor charges, the voltage across it rises, reducing the current flowing through the resistor. In contrast, when the capacitor discharges, the voltage across it is already at its maximum, so the current through the resistor is initially zero. As the capacitor discharges, the voltage across it decreases, increasing the resistor's current.
FCL is a circuit breaker in the power system to protect the microgrid from significant fault current levels. In the normal state, it does not appear, and when a malfunction occurs, it provides a circuit with high resistance that limits the fault current. An ideal FCL should meet the following requirements :
Therefore, this article focuses on the characteristics of traditional adaptive current protection and adopts a new protection action criterion based on two-phase current difference adaptive …
Bonus Application: Sensing. The final application I want to discuss here is the ability of a device to use capacitance as a sensor. Imagine your phone screen, or just take a moment to look at it now, maybe you are reading this blog and scrolling with the touch screen.
quick break protection to design the protection scheme and analyze the design simulation results, The protection scheme has been verified to have the same sensitivity under different fault types and operating states of the power system, and the protection range has been greatly improved compared to traditional current quick break protection ...
instantaneous current quick break protection (section I), the time delay instantaneous overcurrent ... Action data storage End Fig.7. Flow chart of main program 3.4 The setting of adjusting value ...
Thyristor-Based DCCB With Reliable Fast Reclosing Protection Ability by Restoring Capacitor Polarity June 2023 IEEE Transactions on Power Electronics PP(99):1-10
This type of capacitor cannot be connected across an alternating current source, because half of the time, ac voltage would have the wrong polarity, as an alternating …
For guaranteeing rapidity that differential quick-break element moves when the internal fault and the good saturated performance of anti-TA; Existing main transformer Microcomputer Protection generally uses short window algorithm; Like half cycle Fu Shi algorithm (but needing the measure that tackles attenuating dc component); But short window algorithm makes that the operation …
A capacitor having an overpressure-controlled explosion-preventing device, composed of a casing (1), in which a capacitive element (4) made of self-healing metallized plastic film is accommodated, the capacitive element having two opposite heads (6, 7) whereon two leads (8, 9) are welded, and of a cover (10) made of plastics that contains an explosion-preventing device …
The third current commutation is triggered by the capacitor voltage exceeding the MOV threshold, causing the current to flow from the current injection branch to the current commutation branch of ...
The quick break fuse tube is generally used in the circuit of resistive load, such as electric kettle, electric stove, and Space heater with electric heating wire. ... Short circuit protection is characterized by high setting current and instantaneous action. Electromagnetic current releases (or relays) and fuses are commonly used as short ...
Keywords— Radial feeder protection, Capacitor switching, Series reactor, Transient current. I. INTRODUCTION The function of protective relaying is to cause the quick removal from service of any element of a power system when it suffers a short circuit, or when it starts to operate in any abnormal manner that might cause damage
and protection against voltage drops (b). The following examples demonstrate how supercapacitors assume these functions in real-time clock backups, power failure backups, high load assist systems and hybrid energy storage systems to enhance efficiency and reliability.
The relay offers three-phase overload protection with undercurrent and reconnection inhibit functionality for capacitors, single or three-phase current-based unbalance protection for …
This document discusses capacitor bank protection. It begins with an introduction to series and shunt capacitor banks, noting that shunt capacitor banks are used to supply reactive power requirements and improve voltage profiles. It then …
adaptive current fast break protection scheme based on power frequency variation is proposed in this paper, which can well adapt to the current limiting impedance characteristics, and its speed and
5. Feeder Protection Method for DC Traction Power System 5.1 Switch Current Quick Break Protection The current quick-break protection of the switch is an important feeder protection measure. The shunt can collect and analyze the current transmitted to the protection device of the feeder circuit breaker, so
Under the condition of a three-phase short circuit fault at F 2, the operating responses of the conventional current quick break protection and the novel current protection are expressed in Fig. 13. From the results, a three-phase short circuit fault occurs at 60 ms, and I R M S increases from 0.55 kA to 0.99 kA.
The FCL device is configured at the export of the main transformer, by using quick fault identification method, setting different protection current value and relay protection delay time, once the fault occurs, the FCL can quickly limit the fault current first then cooperate with the circuit break and switches on the feeder line to achieved the coordinated relay protection.
The current is calculated by the fast Fourier transform (FFT) algorithm. As the calculation of the RMS current requires a long time, the speed of the current quick break …
Current differential protection is widely used in transmission line due to its inherent simplicity and good performance. In order to strive to increase sensitivity of protection without compromising stability on external faults, phase correlation current differential protection is presented in this paper. Current phase difference is introduced ...
An adaptive current quick break protection considering the impedance characteristics of superconducting current limiter is proposed, after the similarity and …
A mathematical model of resistance type superconducting fault current limiter (R-SFCL) is established and the influence to power frequency variation distance relay has been …
The HDCFCL design optimizes the number of thyristors and capacitors to pass fault currents through adjacent lines. A desired feature of an insulated gate bipolar transistor …
Current-based unbalance protection with compensation for natural unbalance as well as current-based switching resonance protection for capacitor banks; Optional arc protection and high-speed outputs; Supports IEC 61850 Editions …
This paper puts forward an adaptive current quick break protection based on power frequency variation. Research shows that the protection principle have a speed no slower than the power frequency variation impedance relay, and it has a stronger ability of transition resistance, …
no-time-delay instantaneous current protection 3)time-limit quick break protection 1.This paper presented the meaning of adding time-limit quick break protection at the branches of the high voltage house substation in detail,and also deduced the boundary conditions for its application. ...
distribution network, an improved protection scheme with adaptive current quick-break protection as the main protection is proposed, so that different fault characteristics of the distribution ...
Unbalance protection normally provides the primary protection for arcing faults within a capacitor bank and other abnormalities that may damage capacitor elements/ …
Abstract: In the case of faults, the output current of the inverter interfaced distributed generator (IIDG) is related to the type of fault, the location of the fault, and the control strategy of the IIDG. This will cause the traditional current protection scheme to be unsuitable for distribution networks containing IIDG. To solve this problem, this paper proposes a quick-break protection ...
با آخرین اخبار و روندهای مرتبط با انرژی خورشیدی و ذخیره‌سازی آن به‌روز بمانید. مقالات ما را مطالعه کنید تا بیشتر درباره تحولاتی که فناوری خورشیدی در جهان ایجاد کرده است، بیاموزید.
در EK Solar، ما مجموعه‌ای از راه‌حل‌های ذخیره‌سازی انرژی خورشیدی را ارائه می‌دهیم که به شما کمک می‌کند تا هزینه‌های خود را کاهش دهید، به استقلال انرژی برسید و اثرات زیست‌محیطی خود را کاهش دهید. بیابید چگونه این راه‌حل‌ها می‌توانند در زندگی یا کسب‌وکار شما تفاوت ایجاد کنند.
سیستم‌های ذخیره‌سازی انرژی خورشیدی ما به شما این امکان را می‌دهند که انرژی اضافی تولید شده در طول روز را ذخیره کنید و از آن در مواقعی که خورشید در حال تابش نیست استفاده کنید. با کاهش وابستگی به شبکه، به استقلال انرژی دست یابید و مطمئن شوید که در مواقع ضروری برق در اختیار دارید.
با نصب سیستم‌های ذخیره‌سازی خورشیدی، می‌توانید انرژی خورشیدی ارزان‌قیمت را ذخیره کرده و از آن در ساعات اوج مصرف استفاده کنید، زمانی که قیمت برق بالا است. این کار می‌تواند هزینه‌های قبض برق شما را به شدت کاهش داده و صرفه‌جویی بلندمدت را برای خانه‌ها و کسب‌وکارها فراهم کند.
انتقال به سیستم‌های ذخیره‌سازی خورشیدی، وابستگی شما را به سوخت‌های فسیلی کاهش داده و میزان انتشار کربن را کاهش می‌دهد. راه‌حل‌های ما به شما کمک می‌کنند تا از آینده‌ای پایدارتر برای انرژی حمایت کنید و ردپای زیست‌محیطی خود را کاهش دهید.
سیستم‌های ذخیره‌سازی خورشیدی ما در صورت قطع شبکه، برق پشتیبان فراهم می‌کنند تا از قطع برق در خانه یا کسب‌وکار شما جلوگیری شود. این سیستم‌ها همچنین در زمان‌های اوج تقاضا به تثبیت شبکه کمک کرده و انرژی مورد نیاز را تأمین می‌کنند.
سیستم‌های ذخیره‌سازی خورشیدی ما به گونه‌ای طراحی شده‌اند که می‌توانند با توجه به نیازهای شما مقیاس‌پذیر باشند. چه شما یک کسب‌وکار کوچک باشید و چه یک شرکت بزرگ، ما می‌توانیم یک راه‌حل منعطف و مقرون به صرفه برای بهینه‌سازی مصرف انرژی شما فراهم کنیم.
امروز برای مشاوره رایگان یا دریافت پیش‌فاکتور در خصوص راه‌حل‌های ذخیره‌سازی انرژی خورشیدی با ما تماس بگیرید.