Technologies and solutions for sustainable development of electric power industry

If your company or enterprise consumes or produces electricity, you definitely have one or more of the following problems:

significant costs of consumed electricity;

inefficient energy use – high active and voltage losses (some you don’t even guess about);

poor power quality (constantly, periodically or time to time) – low/high voltage level, considerable voltage fluctuations, voltage sags and swells, high level of harmonics;

additional costs – payment for reactive power consumption/generation, frequent shutdowns and unscheduled repairs, unclear operation of protective equipment etc.

We examine the facility using power quality analyzers, infrared camera and other necessary equipment and tools. All obtained data is noted by specialized own software development and transferred to a secure “cloud” storage. That’s standardizes the survey regards to any specialist who conducts it, prevents information losses and “forgotten” issues and immediately available to all company employees involved in the project. The power system bottlenecks and problems are specified or identified at this stage. Else, possible technology to solve the identified problems is pre-selected.

Based on the examination results, a report is formed, which includes:

• a brief description of the company’s power system;
• the measurements data;
• analysis of the data measurements;
• problem issues;
• technical solution description;
• solutions expected effect;
• price offer;
• estimated project payback period;
• terms and conditions of project implementation.

The report is prepared with the specialized own development software and in some cases can be generated within one hour after the survey.

During choosing for a technical solution based on frequency drive technologies we checking technological and economic feasibility of the project, the compatibility of new and existing equipment, explore opportunities for technological processes automation and improvement, the likely impact of frequency drive on other equipment. If it necessary, the replacement of the motor or whole drive unit can be proposed. At the same time, we try to keep the existing technological and electrical equipment as much as possible (if it does not reduce the solution reliability).

Attention to the convenience of control and display of technological processes for operational/on-duty personnel within necessary sensors, alarm devices, HMI panels is also paid.

Regardless of the scale of the facility, our power factor correction (PFC) solutions are based on a detailed analysis of network parameters during several periods of the technological process, both in the power system in a whole and in individual points and nodes: at the balance transfer points, at most distant nodes, at connection points of harmonics sources, at PFC possible connection to network points. Places of location and points of connection of PFC devices together with their type and necessary parameters are determined within detailed analysis of the apparent, active and reactive power distribution in the enterprise power network during the periods of minimum and maximum loads. The parameters of PFC devices are calculated with the own development optimization algorithm, which allows to obtain technically correct solution with maximum economic effect and minimum payback period for existing conditions of a particular power network.

We deal with all types of PFC devices – from static unregulated up to high-speed non-step dynamic systems, of all voltage ranges from 0.4 up to 110 kV.

The voltage quality is one of the crucial factors for many manufacturing processes, automation systems, CNC machines, solar and wind power plants. We offer solutions to voltage problems that can’t be solved by standard means such as uninterruptible power supplies, filter-compensating devices. For voltage sags and swells high and ultra-high level of harmonics active filtering system (AF) and dynamic voltage restoring system (DVR) must be used.

Our solutions based on active filtration systems with wide range currents from 30 up to 400A have the ability to filter harmonic currents up to the 50th order with 0.1ms time response, to select specific harmonics for filtering, to power factor correct within both inductive and capacitive type, to phase currents balance. The parallel connection up to 100 active filters can be done.

We offer DVR systems that capable to voltage maintaining within ± 0.5% of the rated level, to compensate voltage sags up to 70% in depth with phase-to-phase control and response time less than 3ms and have a wide power range from 30kVA up to 6MVA.

AF and DVR systems have modular design, do not contain batteries or moving parts (that’s mean low operating costs), have extensive communication capabilities for integration into existing control and management systems.

Quite a significant part of enterprises, especially designed several decades ago or operating on old industrial sites, usually got basic technology, energy and electrical equipment far from optimal. Some chief power engineers and technologists are not even aware of the problem – cause “it’s historically happened” or “so it was before me”. Therefore, enterprises got higher production costs, total over costs and, consequently, less competitiveness compared to similar newer enterprises.

We offer our solutions and services for possible optimization and full or partial restructuring of electric power systems to reduce technical, technological and financial costs. In addition to the energy-saving and energy efficient products and technologies it can be include:

balancing of electrical loads depending on the regime situation;

realignment and/or rearrangement power source and loads;

modernization of basic and auxiliary electrical equipment and cable networks;

modernization or implementation of modern control, monitoring and signaling systems that make the distribution and consumption of energy resources more clear and transparent.

ESS

ESS energy storage systems are an integral part of the modern philosophy of power grid development – SmartGrid. It primarily used for automatic power balancing, shaving peaks and compensate sags of active power consumption or generation, both during the day and seasonally. It can also serve as a source of uninterruptible power supply in case of power outages.

Our ESS systems based on LFP (lithium iron phosphate) batteries, which have the highest maneuverability at high charge / discharge rate. It safe to operate, got modular design and easily scalable.

SVG

SVG dynamic reactive power compensation systems are part of the flexible alternative current transmission systems (FACTS) family. SVG systems have the ability to control the voltage and balance of reactive power in near real time (response time about 5-10ms) in all four quadrants; active filtration of harmonics to THD level less than 3%; voltage balancing and reverse sequence current compensation.

We offer dynamic SVG compensation systems with rated voltages from 0.4 to 35 kV and rated power from 20 kVA up to 42 MVA.

Any company can’t be confident in the efficient use of energy resources if it got no appropriate tools to control their consumption. For most business owners, CFOs, chief engineers their own power systems in a best case are “the gray boxes”. They mostly‘ve got very tentative understanding of how their energy resources are consumed.

We offer solutions not only for energy monitoring – the control systems for energy consumption at all levels, but also the systems for active control, dispatch, regulation and adjustment of their consumption – energy management.

We would like to note that all our energy efficiency and energy saving solutions we implement with a system of control over the efficiency of our own development.

Finding and identifying location and kind of overhead and cable lines failure takes a significant amount of time in fault repair of MV power networks of distribution system operators (DSO). It’s directly affects such important factors as SAIDI – index of average duration of power outages in the system and volumes of undelivered energy.

We offer the simplest and the most economical solution of this problem compared to reclosers – fault indicators, which provide local and remote phase-to-phase detection of fault currents and detect damaged line. Thus reduces repair and recovery time and, consequently, reduces losses and costs, including transportation ones, to the DSO operator and improves SAIDI index.

Fault indicators can be installed on live line, maintenance free and can be integrated into existing SCADA systems.

Present power distribution networks face brand new problems – instantaneous imbalances and voltage fluctuations caused by the wide spreading of alternative energy sources and increasing harmonics level caused by consumer and industrial electronics – are overlapped with old problems – worn-out networks and equipment, too long distribution lines, shortages of reactive power and voltage regulating means. This leads to increased accidents (growth of SAIFI index) and suboptimal network parameters, which increases the level of losses in the network.

To stabilize and optimize network mode parameters, we offer solutions based on dynamic reactive power compensation systems SVG (Static Var Generator) and energy storage systems ESS.

DME – Dimethyl Ether. Fuel of the third generation with increased environmental performance and the possibility of wide application and a wide raw material base.
Dimethyl ether (DME) is an environmentally friendly, gaseous fuel without sulfur content, nitrogen oxides content in exhaust gases is 90% lower than that of gasoline. It is produced from natural gas, coal and biofuel. It is a derivative of methanol, obtained in the process of conversion of gas into liquid state. Cetane number is more than 55, while diesel fuel has 45 … 50 and contributes to “soft” combustion. Sources of raw materials: solid domestic waste, low-debt methane wells, wastes from poultry farms, farms and liquid municipal sewage (biogas), wood processing waste, plastic and rubber waste.
We at Time Energy offer industrial design, engineering, construction and operation of methanol synthesis plants as part of carbon capture and utilization (CCU) or energy methanol projects. Depending on customer needs, we can either provide methanol synthesis technology or act as a CCU technology integrator. In the latter case, we supply turnkey CCU systems including carbon capture, hydrogen production and methanol synthesis modules. Our projects focus on heavy metals plants, combined heat and power plants as well as commercial utilities and facilities with CO emissions into the environment. In order to take into account all relevant constraints of the operating environment and production tasks, we develop customized projects.