ارائه یک روش نیمه‌هوشمند برای شارژ خودروهای برقی در شبکه‌های توزیع چهارسیمه نامتعادل
محورهای موضوعی : مهندسی برق و کامپیوتر
سعید ذوالفقاری مقدم
1
(دانشگاه صنعتی ارومیه،دانشكده فناوری‌های صنعتی)
کلید واژه: خودروی برقی, شبکه توزیع چهارسیمه, روش شارژ نیمه‌هوشمند, هادی نول, روش مونت‌کارلو,
چکیده مقاله :
گسترش روزافزون خودروهای برقی در شبکه‌های توزیع، چالش‌های زیادی را برای شرکت‌های توزیع برق ایجاد کرده است، از جمله: افزایش مقدار افت ولتاژ، افزایش مقدار تلفات شبکه و افزایش تعداد قطعی‌های ناشی از اضافه بار. برای غلبه بر موضوع ذکرگردیده، پیشنهاد می‌شود که از روش شارژ کنترل‌شده استفاده گردد. با این حال، روش مذکور نیازمند وجود زیرساخت‌های مخابراتی، اندازه‌گیری و پردازشی با هزینه‌های بالا بوده و تنها در شبکه‌های هوشمند قابل پیاده‌سازی است. در این مقاله، یک روش نیمه‌هوشمند برای شارژ خودروهای برقی ارائه شده تا بدون نیاز به زیرساخت‌های پیچیده و تنها با استفاده از سیستم اتوماسیون ساده محلی و ارزان‌قیمت، خودروهای برقی را در زمان‌های کم‌باری شبکه شارژ کرده و به این ترتیب، پارامترهای شبکه را به میزان قابل قبولی بهبود بخشد. بنابراین روش ارائه‌شده علاوه بر شرکت توزیع برق، به نفع مالکین خودرو نیز می‌باشد، زیرا هزینه شارژ خودروها بر اساس تعرفه پایین محاسبه می‌شود. برای رسیدن به نتایج واقعی، شبکه توزیع به صورت چهارسیمه و با در نظر گرفتن اثر سیم نول مدل‌سازی شده است. با اعمال روش پیشنهادی بر روی شبکه توزیع 19شینه استاندارد و مقایسه نتایج به دست آمده با روش‌های مختلف شارژ کنترل‌نشده، کارایی روش پیشنهادشده تأیید می‌گردد.
The growing penetration of electric vehicles (EVs) in distribution networks (DNs) has posed many challenges for electricity distribution companies, such as: increasing the amount of voltage drop, network losses and the number of outages due to the overload. To overcome this, it is recommended to use coordinated charging methods. However, these methods require telecommunication, measurement and processing infrastructure with high costs and can only be implemented in smart grids. In this paper, a semi-intelligent method for charging EVs is presented that does not require complex infrastructure. This method, using a simple and inexpensive local automation system, charges EVs in the off-peak periods of the DN and thus improves its parameters. Since the EVs are charged at the low tariff time intervals, the proposed method will also benefit the EV owners. To achieve real results, four-wire DN is considered to model the effect of neutral conductor. To confirm the effectiveness of the proposed method, it is compared with different uncontrolled charging methods. A standard 19 bus test system is used for simulations.
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