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.
given in (3) where τ is the compensation ratio of line that should be kept less than 100%. More often, the total net ( X c l −) is inductive. The line is overcompensated if Xc l X ≤. The overcompensation is to be avoided in order to prevent the line from increasing ferroresonance phenomenon [9;11]. Fig.1: Single-line principle diagram of a ...
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.
Thus with series capacitor in the circuit the voltage drop in the line is reduced and receiving end voltage on full load is improved. Series capacitors improve voltage profile. Figure 2 Phasor diagram of transmission line with series compensation. Series capacitors also improve the power transfer ability.
From practical point of view, it is desirable not to exceed series compensation beyond 80%. If the line is 100% compensated, it will behave as a purely resistive element and would cause series resonance even at fundamental frequency. The location of series capacitors is decided by economical factors and severity of fault currents.
Abstract: Series capacitive compensation method is very well known and it has been widely applied on transmission grids; the basic principle is capacitive compensation of portion of the inductive reactance of the electrical transmission, which will result in increased power transfer capability of the compensated transmissible line.
Series capacitors also help in balancing the voltage drop of two parallel lines. When series compensation is used, there are chances of sustained overvoltage to the ground at the series capacitor terminals. This overvoltage can be the power limiting criterion at high degree of compensation.
Series capacitors also improve the power transfer ability. The power transferred with series Compensation as where, is the phase angle between V S and V R; Hence capacitors in series are used for long EHV transmission system to improve power transfer ability (stability limit).
The recommended value of degree of compensation is 25 to 75 Series capacitors are installed either at both ends of the EHV and UHV transmission line i.e. at sending end and receiving end sub-station or in an intermediate compensating switching sub-station.
given in (3) where τ is the compensation ratio of line that should be kept less than 100%. More often, the total net ( X c l −) is inductive. The line is overcompensated if Xc l X ≤. The overcompensation is to be avoided in order to prevent the line from increasing ferroresonance phenomenon [9;11]. Fig.1: Single-line principle diagram of a ...
Shunt Capacitor Definition: A shunt capacitor is defined as a device used to improve power factor by providing capacitive reactance to counteract inductive reactance in electrical power systems. Power Factor …
To explain the operating principle of the SSSC, this chapter compares it to the classical series capacitor compensation with the use of phasor diagram. As a result of the series capacitive compensation, a decrease in the equivalent line impedance is achieved and, consequently, a corresponding increase in the electric power transmitted on the line.
Research shows that compensation at the sending end has obvious impacts on current distribution along the cable, and the maximum current occurs at the sending or receiving end.
Change of line reactance caused by the insertion of a series capacitor: (a) one-line diagram, (b) phasor diagram, (c) one-line diagram with the inserted capacitor, and …
The program can solve distance protection overreach problem and improve the sensitivity of distance protection for series compensated line. When series compensation capacitors installed on the end ...
The principle of series capacitor compensation technology to improve the quality of long-distance transmission lines voltage is analyzed. ... series line compensation, and shunt line compensation ...
This study proposes a receiving-end voltage compensation method employing a phase-specific reactive power control strategy with a neutral-point-clamped (NPC) inverter in a three-phase four-wire distribution system. The principle of the proposed receiving end voltage compensation method is explained. Further, the proposed control strategy can solve the …
Series and Shunt Compensation of Transmission Lines: The performance of long EHV AC transmission systems can be improved by reactive compensation of series or shunt (parallel) …
Figure 25.1 shows the principles and theoretical effects of shunt reactive power compensation in a basic ac system, which comprises a source V 1, a transmission line, and a typical inductive load. Figure 25.1 a shows the system without compensation, and its associated phasor diagram.
Series compensation is the method of improving the system voltage by connecting a capacitor in series with the transmission line. In other words, in series compensation, reactive power is inserted in series with the transmission …
If a capacitor of reactance (-5Ω) at the synchronous frequency is inserted in the line AC as in Fig 2.1 (b), it reduces the line impedance from 10Ω to 5Ω so that the power flow through the lines AB, BC and AC are 250 MW, 1250 MW and 1750 MW respectively.
Generally, the voltage on long distribution lines is regulated within the permissible range by step voltage regulator (SVR). SVR controls the line voltage through line drop compensation (LDC) method. However, when large-scale distributed generation (DG) is introduced into distribution lines, it is difficult to maintain the line voltage within the permissible …
Figure 5-3 - Voltage profile for an adjacent line side fault near a series capacitor (Reverse Fault) Figure 5-4 - Example of current reversal condition in a SC line ... Figure 6-5 - Line end compensation, line side shunt reactors Figure 6-6 – Line …
The following settings programmed distance relay MHO: Figure 15 shows a line with sending end line compensation. For high current faults, the capacitor spark gap flashes and removes the capacitor ...
Series capacitive compensation method is very well known and it has been widely applied on transmission grids; the basic principle is capacitive compensation of portion of the inductive …
Series capacitive compensation method is very well known and it has been widely applied on transmission grids; the basic principle is capacitive compensation of portion …
The Series capacitive compensation is adding the capacitive reactance (XC) in series with the transmission line to reduce the overall effective reactance (Xeff) of the line (from the sending …
3. A very rapid speed of response, in which the time between the initiation of a control signal and a capacitor insertion, or bypass, is typically less than a half-cycle (8 ms for 60 Hz). Thus, in case a major tie-line suffers an outage, the power-transfer capability of an alterative line can be increased rapidly through the TSSC. 4. No generation of harmonics.
What is Series Compensation in Power System?: Series Compensation – A capacitor in series with a line gives control over the effective reactance between line ends. This effective reactance is given by where Xl = line reactance XC = capacitor reactance It is easy to see …
The bottom plate of the compensation capacitor with 2C u at the REF node is constantly ... The above procedure is repeated until the voltage drop on V + and V − line is the same at the end of the dis-charging operation. Reproduced under the ... 3.1 Pairwise Conductance Compensation. The ConCom principle is first applied to the MVM circuit of ...
Induction motors as well as all small and large transformers work on principle of electro-magnetic induction and need reactive power for their functioning. Poor power factor loads draw large …
ANALYSIS Fig. 8: Half-end location of compensation capacitor The compensated transmission line constants for sendingend location of series capacitor are given as: Series capacitors located at the line ends are close to a substation or a …
The reactance of the line can be reduced by using parallel lines, double circuit, bundle conductors, series capacitors, and midpoint compensation. Series capacitor compensation: The voltage control can be done by changing the reactance of the transmission line. Due to the series capacitor, the total reactance of the line will be reduced as a ...
The shunt capacitive compensation is used in two cases: when charging the transmission line or for very low load at the receiving end of the transmission line. Because of the low load or the …
The purpose of series compensation is to cancel part of the series inductive reactance of the line using series capacitors. This helps in (i) increase of maximum power transfer (ii) reduction in power angle for a given amount of …
from the sending end to the receiving end, i.e., X in the P = (V 2 /X) sin δ ... Consider the simple two-machine model, with a series capacitor compensated line, which, for convenience, is assumed to be ... The principle of variable-series compensation is simply to increase the fundamental-frequency voltage across an fixed capacitor (FC) in a ...
Figure 7.2a and b show the arrangement of the ideal midpoint shunt compensator, which maintains a voltage, V c, equal to the bus bar voltage such that V s = V r = V c = V.Each half of the line is represented by a π equivalent circuit. The synchronous machines at the ends are assumed to supply or absorb the reactive power for the leftmost and rightmost half sections, …
When series compensation capacitors installed on the end of line the sensitivity will not be impacted by series compensation capacitors. EMTP simulation results show the effectiveness and ...
the line, which can provide 60% compensation in total. The reactance of one capacitor is -j34.96 Ω. A simple example is given below to show the voltage profile along the line at the heavy load condition with and without series compensation. Figure 5. Voltage profile when series capacitor compensation applied
When the circuitry is designed to adjust the firing angle, capacitor/reactor unit acts as continuously variable in the power circuit. Capacitor or capacitor and inductor bank can be – …
This paper introduces the series capacitor compensation method which considers as a leading technique to improve the power system capability; with the analysis of the location of inserted ...
receiving end voltage. X: reactance of line ( delta ): phase angle or load angle between ( V_{1},&,V_{2} ) k: degree of compensation. 2.2 Principle of Shunt Compensation. Shunt capacitor are connected in parallel in the system are used mainly for power factor improvement and in harmonic filters. It also boost the voltage of bus.
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.