November, 11-15, 2025, Eilat, Israel
Archive - Electricity 2017 Archive - Electricity
TPM seat 5
Renewable Energy -Renewable Energy
Thursday | 9.11.2017 | 14:00
TPM 5.1
High Voltage Network: Operational Impacts and Coping Ways DG penetration of distributed production facilities
Adi Zada
Israel Electric Co.
Israel
Adi Zada, 36, married and father of 2 children from Tel Aviv. Works for the Dan District Electric Company in Tel Aviv (56 Anielewicz St.). Electrical engineer with an electrician's license Engineer, registered in the register of engineers and architects.
BA and MA in Electrical and Electronics Engineering.
B.Sc. (Internship in Strong Current) I graduated in 2006 from the Holon Institute of Technology,
M.Sc. I graduated in 2017 (in February) from Ariel University.
Has worked for the Dan District Electric Company in the Operations and Supervision Department since 2008, as an electrical engineer.
In my role I work in the operational planning section and perform two main roles:
Senior Licensed - Responsible for operating the distribution network (high and low voltage). Plans and approves switching and shortening orders in the distribution network for the implementation of work orders (from the planning department or from the maintenance department) in the field by the execution teams.
Accompanies the work carried out in the distribution network from the initial stage of obtaining work details from the foreman, the intermediate stages of planning and approving a switching and shortening ordinance (with preparation of electrical change diagrams in the operational schemas), the final stage of field work, including implementation of changes in operational plansSenior licensed district (live voltage) work supervisor - responsible for preparing and approving high and low voltage AMH orders for the execution departments. Responsible for the use of appropriate procedures for the work of the execution departments in the district.
I worked in the planning office of Yair Eitan Engineers between the years 2005 - 2008, as an electrical engineer.
In my role, I designed and tested low-voltage and high-voltage electrical installations, prepared bills of quantities, prepared technical specifications and electrical plans in AUTOCAD software. Accompanying projects from the beginning (including characterization from the client) to the end, including meetings and top supervision in the field.
Serves in the construction unit as an electrical engineer.
In the regular service, I served at the 7th School of Electronics and Computers in the field of training as an instructor in basic courses and as a department sergeant in girls' training.
The construction of private energy facilities in the State of Israel has been accelerated in recent years, and private power generation facilities with high-voltage production capacity have begun to be built. Distributed production facilities that connect to the distribution network are called Distribution Generation (DG). The combination of distributed production facilities for a high-voltage grid makes the operation of the power grid more complex and presents new phenomena in the reliability and quality of electricity that did not exist before. DG production facilities are defined by the size of the production power they can deliver to the network. DG distributed production facilities are divided into two types: Renewable energies, as part of the global trend to encourage green energy, private producers around the world have begun to establish systems for green energy production: solar technology (photovoltaic cells), wind technology and hydroelectric technology. Most of the DG production facilities are of the renewable energy type, while in the State of Israel the most common technologies are of the solar and wind type, which are defined as an unstable energy source (Non Dispach). Conventional energies, conventional means of production are based on burning fuels to propel generators. Conventional means of production enable the absolute control and monitoring of the manufacturing power Dispachability. DG production facilities are changing the traditional and one-way energy scheme in a high-voltage grid. Connecting a DG production facility to a high voltage line can cause an increase / decrease of voltage in a high voltage line and even allow a state of energy flow from the load towards the substation called an inverted voltage drop. IEC defines preliminary operations and thresholds for electrical parameters for DG production facilities in order to prevent damage to the quality of electricity. Maintaining the quality of the voltage in the high-voltage grid on the part of the production facility is achieved by defining the power factor at which the production facility will operate, this is done by using the existing system components in the production facility (solar technology in converters and wind technology in generators). There are cases where the production facility is required for the addition of additional systems based on advanced technologies (STATCOM) to achieve the power factor in which it will work. The energy transfer from the DG production facility to a high voltage power line of the electricity company can be done in two ways: 1. Direct electrical connection of the DG production facility to a high voltage power line of the electricity company. 2. Electrical connection of the production facility to a high voltage line of the electricity company through a storage facility, an energy storage system. The most notable advantage of an energy storage facility is the ability to control and monitor the transfer of energy to a high-voltage line while making a full adjustment to the demand curve in a high-voltage line.
TPM 5.2
Efficient Energy Storage Solutions and PV -
Diesel Hybrid Applications with SMA
Topic: The next step to an independent energy supply - Storage solutions from SMA
Higher energy demand, load fluctuations, forecast errors and power plant outages as well as the growing number of renewable energy sources with highly fluctuating feed-in behavior result in a growing demand for fast and variable load balancing. This can be achieved through the integration of energy storage systems. Storage capacities can help meet power plant and grid operator needs while preventing grid stability problems. SMA storage solutions guarantee a reliable supply by providing energy when it is needed. They flexibly supply electricity and thus compensate fluctuating energy feed-in. Furthermore they ensure grid stability and meet the grid operators' power station requirements. Other benefits of the innovative SMA storage technologies are significant cost savings through higher self-consumption, intelligent energy management or self-generated solar power as well as greater independence from rising energy prices. In addition, by integrating storage systems into PV diesel hybrid power plants fuel costs and CO2 emissions are reduced.
Topic: Sun saves fuel - PV Diesel hybrid applications with SMA
Pure diesel power generation for industrial consumers in remote regions leads to continuously increasing operation costs. Simultaneously falling PV system costs make photovoltaic diesel hybrid systems an economically attractive and environmentally friendly solution. The SMA Fuel Save Solution enables to integrate a large proportion of photovoltaics into diesel grids safely and efficiently thanks to smart control engineering. It also reduces fuel consumption and maintenance costs. In conjunction with SMA inverters, the SMA Fuel Save Controller manages the need-based photovoltaics feed-in depending on load and generation profiles. At the same time, comprehensive grid management services are met. Therefore SMA PV diesel solutions offer independence from rising diesel prices and reduce operating and maintenance costs, especially in remote areas far from the Utility grid.
Tim Uges
SMA Solar Technology
Germany
Aug. 2007 - Sep. 2008 Sales / Consulting at Elektrotechnik Hilker GmbH & Co. KG, Germany
Oct. 2008 - Dec. 2011 University of Applied Sciences Nordhausen, Germany, Bachelor of Engineering in Renewable Energies
Jan. 2012 - Oct. 2013 Technical Sales at SMA Solar Technology AG, Germany
Oct. 2013 - Nov. 2015 University of Applied Sciences Nordhausen, Germany, Master of Engineering in Industrial Engineering
Mar 2016 - today Account Manager at SMA Solar Technology AG, Germany
TPM 5.3
Advanced Ancillary Services from Large Utility-Scale PV Power Plant
Advanced Ancillary Services from Large Utility-Scale PV Power Plant
Vladimir Chadliev & Mahesh Morjaria (First Solar); Clyde Loutan (CAISO) & Vahan Gevorgian (NREL)
With increasing share of solar and wind generated energy, traditional power generation resources equipped with automatic governor control and automatic voltage regulation controls, specifically fossil thermal, are being displaced. Deployment of utility-scale, grid-friendly PV power plants that incorporate advanced capabilities to support grid stability and reliability is essential for the large-scale integration of PV generation into the electric power grid, among other technical requirements.
California ISO, the National Renewable Energy Laboratory (NREL), and First Solar conducted a series of tests on a 300-megawatt solar photovoltaic (PV) plant to demonstrate its operating flexibility. The tests were conducted to determine if renewable resources could provide operating characteristics similar to a conventional resource. The unit was tested for its ability to provide ancillary services, such as frequency response (AGC signal response), up and down regulation, voltage control, and active power management.
In each of the test categories, the solar unit performance was comparable to, or better than, conventional resources. These test results demonstrated how smart inverter technology and advance plant controls can leverage PV technology from simply generating as a variable energy resource to providing ancillary services, such as spinning reserves, load following, voltage support, ramping, frequency response and regulation, and power quality .
A typical utility-scale PV power plant consisting of multiple power electronic inverters combined with advanced plant level controls can contribute to grid stability and reliability by providing sophisticated “grid-friendly” features. It may in this way mitigate the impact of its variability on the grid, and contribute to important system requirements more like traditional generators.
Vladimir Chadliev
First Solar Inc.
USA
Vladimir Chadliev is Director of Grid Integration at First Solar. He has over 28 years' experience in the electric power industry, including transmission and substation design, transmission and distribution planning, project management, power system security analysis and integration of renewable resources. His focus is on the integration of solar PV plants into the electrical grid, he leads the development of First Solar's grid integration capability for utility scale solar PV plants. Mr. Chadliev has served on several committees and technical working groups of the Mid-Continent Area Power Pool (MAPP), Midwest Independent System Operator (MISO) and Western Electricity Coordinating Council (WECC). He is a member of the IEEE. He holds a Master's degree in Electrical Engineering from Azerbaijan State Oil Academy.
TPM 5.4
Standard Based Correct Calibration and Practice of Energy Metering Equipment Used at Smart Grids and Renewable Energy Infrastructures
Renewable energy environments require complementary accuracy and correctness testing to be performed on smart meters on top of the conventional metrology standards requirements and amot ha-mida.
What`s new to smart meters, smart grid - that does not exist at conventional grids?
Smart meters enable load profile billing, versus conventional digital and electro-mechanical meters enable only absolute metering billing.
Renewable environments Distributed Energy Resources tend to be multi-harmonic due to DC / AC converters. It is required to test that meters are capable of accurately measuring within these environments.
New measurement scenarios: balance metering intended for fraud detection and grid topology extraction, compensated energy measurement from the other side of a power transformer. So it is also required to learn how to measure smart grids correctly.
Lecture is based on two papers:
one at Electricity and People, Issue 67, July 2017.
The other is not published yet, and it discusses standard based correctness of measurement.
Netzah Calamaro
Israel Electric Co.
Israel
Eternity Calamero is an IEC metrologist. Responsible for the accuracy and correctness of the stock in the theoretical / regulatory aspect and in the definition of specifications. Works in the electrical and electronics industry since 1996. Worked in the chip industry until 2001 (Intel, National Semiconductor) and Electrical Engineering 2001-2017. Holds two degrees from the Technion in Electrical and Electronics Engineering. He is studying for a doctorate in electrical and electronics engineering at AT in an advanced stage. Serves as a metrology unit meter unit. End-to-end inspections by the HHI side. Netzach deals with his work and studies in the development of applications with added value for consumers, and in analyzing the cost-benefit of deploying a smart stock in Israel.
TPM 5.5
Measurement of dynamic parameters of a photovoltaic system
David Navon
NRCN
Israel
Academic degrees:
03/2014 - Master's degree student in energy engineering in the thesis track at Ben Gurion University.
2002-2006- B.Sc in Electrical and Electronics Engineering at the Holon Institute of Technology in a strong current track.
Work Experience:
-10/08 Including - Power Systems Development Engineer at the Negev Nuclear Research Campus.
04 / 08-10 / 08- RT engineer for EMBEDDED systems at the high-tech company BATAM.
04 / 08-10 / 08- Hardware Engineer in the Department of Development and Innovation in Ramta, Israel Aerospace Industries.
Summary
Lack of energy sources is one of the major challenges facing humanity. The need to develop alternative energy sources and efficient technologies are essential for the world. Solar energy has become one of the most important sources of renewable energy in a decade thanks to the rapid development of the photovoltaic cell manufacturing industries and power electronics technologies.
Proper design of solar systems clarifies the maximum power produced by the panel. Solar systems consist of panels threaded between them in a serial and parallel manner, this type of connection limits the maximum output current from the system according to the lower performing panel, therefore, partial shading or accumulation of dust will limit the maximum possible power obtained from the system.
There are several methods that can overcome this problem, one of which is to connect a bypass diode parallel to the cells in the panel. A second method is to connect a DC-DC Converter to allow the cell to operate at a maximum operating point (MPPT). These methods require processing of all the overall power of the cell which is their main drawback in the aspect of Insertion loss.
Recently there has been progress towards the development of differential power processing methods to balance the power imbalance instead of all the power. This approach relies on an energy storage element such as a capacitor. In this method an external capacitor is assembled in parallel to each solar subsystem.
Solar cells are characterized by a balanced electrical circuit that includes a current source, diode and parallel and serial resistor. Although this circuit does not describe the dynamic behavior of solar cells that also includes dynamic capacitance of the diode which is usually ignored and considered a parasitic component.
Knowledge of dynamic parameters of solar cells is important for the efficient and correct design of charge controllers and dc-dc converters that work at high switching frequencies and to increase the performance obtained from the solar system.
The lecture will present the model that describes the dynamic behavior of solar panels, the advantage inherent in the "precision" dynamic capacitance and the existing methods for measuring electrical parameters.